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Pattern of Referral of Obstetric Patients at a Tertiary Care Hospital in Southern Nigeria
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作者 Osita Celestine John Justina Omoikhefe Alegbeleye 《Advances in Reproductive Sciences》 CAS 2024年第2期116-124,共9页
Background: Health challenges that are difficult to manage at primary health centres should be referred to secondary health facilities, and if untreated, to the tertiary hospitals. A good referral should include the p... Background: Health challenges that are difficult to manage at primary health centres should be referred to secondary health facilities, and if untreated, to the tertiary hospitals. A good referral should include the patient’s biography, such as age, gender, tribe, religion, occupation, medical history, the reason for the referral, treatments received, and clinical diagnosis. Objectives: To evaluate the referral patterns, indications for referrals, and feto-maternal outcomes for obstetric patients who were referred to the University of Port Harcourt Teaching Hospital. Materials and Methods: A prospective study of patients admitted to the Obstetric unit from January 1, 2021, to December 31, 2022. Data was collected from patients while on admission or clinic visits and recorded in an excel spread sheet. Data was analyzed with the Statistical Package for Social Sciences (SPSS) version 25. Results: Of the 3469 patients were admitted to the obstetric unit, 1476 and 1993 were admitted in 2021 and 2022, respectively. Most (70.35%) of the patients were in the 20-34 years age group, parity 1-4 was the most frequent (66.49%), while 85.39% of patients were booked. 10.46% of the booked patients were referred from other facilities, whereas 89.54% of patients were booked at our facility from the onset. Most common indications of referrals were previous caesarean section (CS) at term (40.09%) and hypertensive disorders of pregnancy (17.59%). The outcome for 2021 indicated 17 maternal deaths, 132 fetal deaths and 1010 live births, giving maternal mortality ratio (MMR) as 1810.44 per 100,000 live births and perinatal mortality ratio (PMR) of 130.7 per 1000 births respectively. In 2022, there were 17 maternal deaths, 130 fetal deaths and 1297 deliveries, giving a MMR of 1399 per 100,000 live births and a PMR of 100.2 per 1000 births. Conclusion: The pattern of referral among obstetric patients in this study shows that a lot of the patients do not get adequate care at the lower cadre of the referral system, hence adequate facilities should be made available in primary and secondary health centres to tackle obstetric emergencies. 展开更多
关键词 referral PATTERN OBSTETRICS SOUTHERN NIGERIA
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Acceptability of Phone-Based Communication Intervention by Healthcare Workers as an Adjunct to Routine Referral Form: A Qualitative Study in South Western Uganda
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作者 Hamson Kanyesigye Joseph Ngonzi +3 位作者 Edgar Mulogo Yarine Fajardo Noni E. MacDonald Jerome Kabakyenga 《Open Journal of Preventive Medicine》 CAS 2023年第2期23-40,共18页
Introduction: A functional maternal referral system should encompass a feasible communication system between health facilities. In Uganda, the current paper-based patient referral form is associated with inadequate pa... Introduction: A functional maternal referral system should encompass a feasible communication system between health facilities. In Uganda, the current paper-based patient referral form is associated with inadequate patient-information and low feedback rates. A recent quasi-experimental study demonstrated that a phone-based communication intervention is feasible for iterative communication between health facilities, and there were improved maternal-fetal outcomes and high rates of feedback. However, the acceptability of the intervention was not assessed. Objective: The study assessed the acceptability of a phone-based communication intervention by the health care workers (HCWs) for iterative communication between the referring and receiving health facilities. Methods: This was a qualitative study conducted in South Western Uganda, in April 2021. The study employed a theoretical framework of acceptability of medical interventions. We conducted in-depth interviews with HCWs and used deductive-inductive analysis. Results: We enrolled a total of 23 HCWs, of whom 69.6% (n = 16) were females while 30.4% (n = 7) were males. Majority (65.2%, n = 15), were midwives and the rest were: doctors (30.4%, n = 7) and a nurse (4.3%). The HCWs were positive towards the intervention: they believed that the intervention reduced delays, promoted professional escort, encouraged sharing of supplies, enabled exchange of relatively more patient details, feedback and improved case management. They believed it was culturally acceptable and had enough skills and experience of operating phones. All participants recommended scale out of the intervention, but advised on the need for dedicated human-resource to coordinate phone calls, ensure availability of airtime and charged battery. Conclusion: This study demonstrates that the phone-based communication intervention was highly accepted by the healthcare workers, and that hospitals can successfully give feedback to lower health centres through iterative phone calls. This provides a possible solution to the long-standing challenge of poor feedback rates and a vicious cycle of poor maternal-fetal outcomes in resource limited settings. 展开更多
关键词 ACCEPTABILITY Phone-Based Communication Intervention referral Form Healthcare Workers
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Socio-Demographic Factors, Clinical Characteristics and Maternal Prognosis of Hypertensive Disorders in Pregnancy at Panzi General Referral Hospital
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作者 Mushera Aganze Alain Musese Nguru Marie Constance +4 位作者 Julien Bwama Botalatala Mbozi Andrea Andre Nakalonge Raha Maroyi Kenny Olivier Nyakio 《Open Journal of Obstetrics and Gynecology》 CAS 2023年第5期860-873,共14页
Background: Hypertensive disease in pregnancy is an important cause of morbidity, long-term disability, and maternal and neonatal mortality. The aim is to determine the socio-demographic characteristics and maternal p... Background: Hypertensive disease in pregnancy is an important cause of morbidity, long-term disability, and maternal and neonatal mortality. The aim is to determine the socio-demographic characteristics and maternal prognosis of these women with Hypertension during pregnancy. Material and Method: We conducted a cross-sectional study, we interview patients and after discussion we transcripts in a database in Excel software before analysis with SPSS version 20.0 and Stata 14.0 The qualitative variables have been summarised by the Percentage and the quantitative variables will be summarised by Means and Standard Deviation. The associations of the variables were calculated by Pearson’s chi-square test with a significance level set at a p-value Result: The average age of the patients was 30.33 ± 7.020 years, 92.1% were married, 79.8% lived in urban areas, most of the patients were overweight (43%), 92.1% of them had monofetal pregnancies, 36% were multiparous, 34.2% had a previous history of preeclampsia in pregnancy and 14% were known to have hypertension. Pre-eclampsia was the most frequent form of hypertension in pregnancy with 73.68% of cases and represents 84.8% of severe forms of hypertension in pregnancy, 53.4% of the patients delivered vaginally. Eclampsia was the most frequent complication in our patients with 31.7% frequency and among the socio-demographic parameters, age and body mass index were significantly associated with maternal complications. Conclusion: Maternal age and body mass index are important socio-demographic factors associated with the occurrence of maternal complications in women with hypertensive disorders in pregnancy. 展开更多
关键词 Hypertensive Disorders Maternal Prognosis Socio-Demographic Factors Panzi General referral Hospital
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Quantitatively characterizing sandy soil structure altered by MICP using multi-level thresholding segmentation algorithm 被引量:1
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作者 Jianjun Zi Tao Liu +3 位作者 Wei Zhang Xiaohua Pan Hu Ji Honghu Zhu 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2024年第10期4285-4299,共15页
The influences of biological,chemical,and flow processes on soil structure through microbially induced carbonate precipitation(MICP)are not yet fully understood.In this study,we use a multi-level thresholding segmenta... The influences of biological,chemical,and flow processes on soil structure through microbially induced carbonate precipitation(MICP)are not yet fully understood.In this study,we use a multi-level thresholding segmentation algorithm,genetic algorithm(GA)enhanced Kapur entropy(KE)(GAE-KE),to accomplish quantitative characterization of sandy soil structure altered by MICP cementation.A sandy soil sample was treated using MICP method and scanned by the synchrotron radiation(SR)micro-CT with a resolution of 6.5 mm.After validation,tri-level thresholding segmentation using GAE-KE successfully separated the precipitated calcium carbonate crystals from sand particles and pores.The spatial distributions of porosity,pore structure parameters,and flow characteristics were calculated for quantitative characterization.The results offer pore-scale insights into the MICP treatment effect,and the quantitative understanding confirms the feasibility of the GAE-KE multi-level thresholding segmentation algorithm. 展开更多
关键词 Soil structure MICRO-CT multi-level thresholding MICP Genetic algorithm(GA)
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Delayed referral for liver transplant evaluation worsens outcomes in chronic liver disease patients requiring inpatient transplant evaluation
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作者 Katherine M Cooper Alessandro Colletta +9 位作者 Nicholas J Hathaway Diana Liu Daniella Gonzalez Arslan Talat Curtis Barry Anita Krishnarao Savant Mehta Babak Movahedi Paulo N Martins Deepika Devuni 《World Journal of Transplantation》 2023年第4期169-182,共14页
BACKGROUND Indications to refer patients with cirrhosis for liver transplant evaluation(LTE)include hepatic decompensation or a model for end stage liver disease(MELDNa)score≥15.Few studies have evaluated how delayin... BACKGROUND Indications to refer patients with cirrhosis for liver transplant evaluation(LTE)include hepatic decompensation or a model for end stage liver disease(MELDNa)score≥15.Few studies have evaluated how delaying referral beyond these criteria affects patient outcomes.AIM To evaluate clinical characteristics of patients undergoing inpatient LTE and to assess the effects of delayed LTE on patient outcomes(death,transplantation).METHODS This is a single center retrospective cohort study assessing all patients undergoing inpatient LTE(n=159)at a large quaternary care and liver transplant center between 10/23/2017-7/31/2021.Delayed referral was defined as having prior indication(decompensation,MELD-Na≥15)for LTE without referral.Early referral was defined as referrals made within 3 mo of having an indication based on practice guidelines.Logistic regression and Cox Hazard Regression were used to evaluate the relationship between delayed referral and patient outcomes.RESULTS Many patients who require expedited inpatient LTE had delayed referrals.Misconceptions regarding transplant candidacy were a leading cause of delayed referral.Ultimately,delayed referrals negatively affected overall patient outcome and an independent predictor of both death and not receiving a transplant.Delayed referral was associated with a 2.5 hazard risk of death.CONCLUSION Beyond initial access to an liver transplant(LT)center,delaying LTE increases risk of death and reduces risk of LT in patients with chronic liver disease.There is substantial opportunity to increase the percentage of patients undergoing LTE when first clinically indicated.It is crucial for providers to remain informed about the latest guidelines on liver transplant candidacy and the transplant referral process. 展开更多
关键词 Liver transplantation Liver transplant evaluation Liver transplant referral Patient access EQUITY Patient outcomes
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Scheme Based on Multi-Level Patch Attention and Lesion Localization for Diabetic Retinopathy Grading
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作者 Zhuoqun Xia Hangyu Hu +4 位作者 Wenjing Li Qisheng Jiang Lan Pu Yicong Shu Arun Kumar Sangaiah 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第7期409-430,共22页
Early screening of diabetes retinopathy(DR)plays an important role in preventing irreversible blindness.Existing research has failed to fully explore effective DR lesion information in fundus maps.Besides,traditional ... Early screening of diabetes retinopathy(DR)plays an important role in preventing irreversible blindness.Existing research has failed to fully explore effective DR lesion information in fundus maps.Besides,traditional attention schemes have not considered the impact of lesion type differences on grading,resulting in unreasonable extraction of important lesion features.Therefore,this paper proposes a DR diagnosis scheme that integrates a multi-level patch attention generator(MPAG)and a lesion localization module(LLM).Firstly,MPAGis used to predict patches of different sizes and generate a weighted attention map based on the prediction score and the types of lesions contained in the patches,fully considering the impact of lesion type differences on grading,solving the problem that the attention maps of lesions cannot be further refined and then adapted to the final DR diagnosis task.Secondly,the LLM generates a global attention map based on localization.Finally,the weighted attention map and global attention map are weighted with the fundus map to fully explore effective DR lesion information and increase the attention of the classification network to lesion details.This paper demonstrates the effectiveness of the proposed method through extensive experiments on the public DDR dataset,obtaining an accuracy of 0.8064. 展开更多
关键词 DDR dataset diabetic retinopathy lesion localization multi-level patch attention mechanism
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Frequency of and reasons behind non-listing in adult patients referred for liver transplantation: Results from a retrospective study
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作者 Marco Biolato Luca Miele +8 位作者 Giuseppe Marrone Claudia Tarli Antonio Liguori Rosaria Calia Giovanni Addolorato Salvatore Agnes Antonio Gasbarrini Maurizio Pompili Antonio Grieco 《World Journal of Transplantation》 2024年第2期99-106,共8页
BACKGROUND Few studies have evaluated the frequency of and the reasons behind the refusal of listing liver transplantation candidates.AIM To assess the ineligibility rate for liver transplantation and its motivations.... BACKGROUND Few studies have evaluated the frequency of and the reasons behind the refusal of listing liver transplantation candidates.AIM To assess the ineligibility rate for liver transplantation and its motivations.METHODS A single-center retrospective study was conducted on adult patients which entailed a formal multidisciplinary assessment for liver transplantation eligibility.The predictors for listing were evaluated using multivariable logistic regression.RESULTS In our center,314 patients underwent multidisciplinary work-up before liver transplantation enlisting over a three-year period.The most frequent reasons for transplant evaluation were decompensated cirrhosis(51.6%)and hepatocellular carcinoma(35.7%).The non-listing rate was 53.8%and the transplant rate was 34.4%for the whole cohort.Two hundred and five motivations for ineligibility were collected.The most common contraindications were psychological(9.3%),cardiovascular(6.8%),and surgical(5.9%).Inappropriate or premature referral accounted for 76(37.1%)cases.On multivariable analysis,a referral from another hospital(OR:2.113;95%CI:1.259–3.548)served as an independent predictor of non-listing.CONCLUSION A non-listing decision occurred in half of our cohort and was based on an inappropriate or premature referral in one case out of three.The referral from another hospital was taken as a strong predictor of non-listing. 展开更多
关键词 Controindication ELIGIBILITY Evaluation referral Personalized medicine
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An Expert System to Detect Political Arabic Articles Orientation Using CatBoost Classifier Boosted by Multi-Level Features
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作者 Saad M.Darwish Abdul Rahman M.Sabri +1 位作者 Dhafar Hamed Abd Adel A.Elzoghabi 《Computer Systems Science & Engineering》 2024年第6期1595-1624,共30页
The number of blogs and other forms of opinionated online content has increased dramatically in recent years.Many fields,including academia and national security,place an emphasis on automated political article orient... The number of blogs and other forms of opinionated online content has increased dramatically in recent years.Many fields,including academia and national security,place an emphasis on automated political article orientation detection.Political articles(especially in the Arab world)are different from other articles due to their subjectivity,in which the author’s beliefs and political affiliation might have a significant influence on a political article.With categories representing the main political ideologies,this problem may be thought of as a subset of the text categorization(classification).In general,the performance of machine learning models for text classification is sensitive to hyperparameter settings.Furthermore,the feature vector used to represent a document must capture,to some extent,the complex semantics of natural language.To this end,this paper presents an intelligent system to detect political Arabic article orientation that adapts the categorical boosting(CatBoost)method combined with a multi-level feature concept.Extracting features at multiple levels can enhance the model’s ability to discriminate between different classes or patterns.Each level may capture different aspects of the input data,contributing to a more comprehensive representation.CatBoost,a robust and efficient gradient-boosting algorithm,is utilized to effectively learn and predict the complex relationships between these features and the political orientation labels associated with the articles.A dataset of political Arabic texts collected from diverse sources,including postings and articles,is used to assess the suggested technique.Conservative,reform,and revolutionary are the three subcategories of these opinions.The results of this study demonstrate that compared to other frequently used machine learning models for text classification,the CatBoost method using multi-level features performs better with an accuracy of 98.14%. 展开更多
关键词 Political articles orientation detection CatBoost classifier multi-level features context-based classification social networks machine learning stylometric features
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Construction of a Multi-Level Strategic System for Cultivating Cultural Industry Management Talents in Colleges and Universities
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作者 Zhenzhen Hu Tao Zhou 《Journal of Contemporary Educational Research》 2024年第10期75-82,共8页
Through SWOT(strengths,weaknesses,opportunities,and threats)and PEST(political,economic,social,and technological)analysis,this study discusses the construction of a multi-level strategic system for the cultivation of ... Through SWOT(strengths,weaknesses,opportunities,and threats)and PEST(political,economic,social,and technological)analysis,this study discusses the construction of a multi-level strategic system for the cultivation of cultural industry management talents in colleges and universities.First of all,based on SWOT analysis,it is found that colleges and universities have rich educational resources and policy support,but they face challenges such as insufficient practical teaching and intensified international competition.External opportunities come from the rapid development of the cultivation of cultural industry management talents and policy promotion,while threats come from global market competition and talent flow.Secondly,PEST analysis reveals the key factors in the macro-environment:at the political level,the state vigorously supports the cultivation of cultural industry management talents;at the economic level,the market demand for cultural industries is strong;at the social level,the public cultural consumption is upgraded;at the technological level,digital transformation promotes industry innovation.On this basis,this paper puts forward a multi-level strategic system covering theoretical education,practical skill improvement,interdisciplinary integration,and international vision training.The system aims to solve the problems existing in talent training in colleges and universities and cultivate high-quality cultural industry management talents with theoretical knowledge,practical skills,and global vision,so as to adapt to the increasingly complex and diversified cultural industry management talents market demand and promote the long-term development of the industry. 展开更多
关键词 Cultural industry management talents Personnel training multi-level strategic system
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Description and Factors Affecting the Referral of Presumptive Tuberculosis Patients in China 被引量:1
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作者 LI Tao ZHANG Hui +2 位作者 WANG Li Xia PANG Yu DU Xin 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2017年第6期444-449,共6页
To describe and analyze the factors affecting the referral of presumptive tuberculosis patients between health-care facilities that are not affiliated with the National TB Control Program (NTP) and NTP-designated me... To describe and analyze the factors affecting the referral of presumptive tuberculosis patients between health-care facilities that are not affiliated with the National TB Control Program (NTP) and NTP-designated medical facilities in China, we carried out a retrospective study based on data collected in the Tuberculosis Information Management System in 2015. Out of 324,221 presumptive pulmonary tuberculosis (PTB) cases reported by non-NTP health-care facilities, 302,006 (93.1%) reported cases successfully arrived at designated medical facilities and 22,215 cases (6.9%) were lost to follow-up. The arrival rate of presumptive cases among male patients (92.9%) was slightly lower than that among female ones (93.7%), and this difference is statistically significant. The majority (73.3%) of reported cases were local permanent residents. Migrants have a higher risk of being lost to follow-up compared with local residents (adjusted odds ratios 4.126 and 5.003, respectively). Compared with farmers and herdsmen, pre-school children, unemployed laborers, retirees, and people with other occupations (adjusted odds ratios 2.361, 1.274, 1.068, and 1.993, respectively) had higher rates of loss to follow-up during the referral and tracing processes. In conclusion, this study demonstrates that the high referral rate of presumptive TB cases from non-NTP health-care facilities to designated medical facilities in China is due to implementation of effective active case identification strategies. In addition, migrant populations, pre-school children, unemployed laborers, and retirees were identified as high-risk groups that contribute to the loss to follow-up. 展开更多
关键词 TUBERCULOSIS Presumptive referral Loss to follow-up
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Failed biliary cannulation: Clinical and technical outcomes after tertiary referral endoscopic retrograde cholangiopancreatography 被引量:6
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作者 Michael P Swan Michael J Bourke +4 位作者 Stephen J Williams Sina Alexander Alan Moss Rick Hope David Ruppin 《World Journal of Gastroenterology》 SCIE CAS CSCD 2011年第45期4993-4998,共6页
AIM: Prospective evaluation of repeat endoscopic retrograde cholangiopancreatography (ERCP) for failed Schutz grade 1 biliary cannulation in a high-volume center. METHODS: Prospective intention-to-treat analysis of pa... AIM: Prospective evaluation of repeat endoscopic retrograde cholangiopancreatography (ERCP) for failed Schutz grade 1 biliary cannulation in a high-volume center. METHODS: Prospective intention-to-treat analysis of patients referred for biliary cannulation following recent unsuccessful ERCP. RESULTS: Fifty-one patients (35 female; mean age: 62.5 years; age range: 40-87 years) with previous failed biliary cannulation were referred for repeat ERCP. The indication for ERCP was primarily choledocholithiasis (45%) or pancreatic malignancy (18%). Successful biliary can- nulation was 100%. The precut needle knife sphincterotomy (NKS) rate was 27.4%. Complications occurred in 3.9% (post-ERCP pancreatitis). An identif iable reason for initial unsuccessful biliary cannulation was present in 55% of cases. Compared to a cohort of 940 nave pa-pilla patients (female 61%; mean age: 59.9 years; age range: 18-94 years) who required sphincterotomy over the same time period, there was no statistical difference in the cannulation success rate (100% vs 98%) or postERCP pancreatitis (3.1% vs 3.9%). Precut NKS use was more frequent (27.4% vs 12.7%) (P = 0.017). CONCLUSION: Referral to a high-volume center following unsuccessful ERCP is associated with high technical success, with a favorable complication rate, compared to routine ERCP procedures. 展开更多
关键词 Failed endoscopic retrograde cholangiopancreatography Failed biliary cannulation Unsuccessful biliary cannulation Tertiary referral endoscopic retrograde cholangiopancreatography Needle knife sphincterotomy Biliary cannulation Precut sphincterotomy Post endoscopic retrograde cholangiopancreatography pancreatitis
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Epidemiologic Profile of Maternal Deaths in Two Referral Hospitals in Cameroon 被引量:1
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作者 Philip Njotang Nana Felix Essiben +6 位作者 Julius Dohbit Sama Elisabeth Medoua Koh Koh Morfaw Lifanji Filbert Eko Eko Jeanne Fouedjio Agnes Esiene Robinson Enow Mbu 《Open Journal of Obstetrics and Gynecology》 2016年第6期365-372,共8页
Introduction: Our objective was to compare the epidemiologic profile of maternal mortality in two structures serving as referral levels of care in Cameroon. Methodology: This cross-sectional, comparative study took pl... Introduction: Our objective was to compare the epidemiologic profile of maternal mortality in two structures serving as referral levels of care in Cameroon. Methodology: This cross-sectional, comparative study took place at the maternities of the Yaoundé Central Hospital (YCH) and the Bamenda Regional Hospital (BRH) from December 1st 2014 to May 31st 2015, a 6 months’ period. The medical records of deceased women over 5 years, from January 2010 to December 2014, were collected. We calculated the MMR (Maternal mortality rate) and studied the causes and risk factors associated with maternal death. The Epi info software 3.5.4 was used to analyze data with a significance level of P < 0.05. Results: The maternal mortality ratio (MMR) was 964 and 247 per 100,000 live births for YCH and BRH, respectively. More deaths occurred within the aged group range 20 to 34 years, 76.8% at YCH and 64.7% at BRH. At YCH, 70.7% of these patients were referrals versus 32.4% at BRH. Complication from abortion was often implicated at BRH (P = 0.007;OR = 0.31;CI = 0.13 - 0.74). Others causes were hemorrhage (YCH = 43.4%;BRH = 35.5%), hypertensive diseases (YCH = 17.2%;BRH = 14.7%) and infections (YCH = 8.1%;BRH = 17.6%). At YCH time elapsed from admission to death was <3 h (P = 0.005;OR = 6.63;CI = 1.49 - 29.5). Conclusion: Both hospitals have similar causes of maternal deaths, differing only in the context within which the deaths occurred. Improving access to good quality health care, satisfying unmet needs for family planning, availability of blood products and the establishment of health insurance could decrease the maternal mortality rate. 展开更多
关键词 Maternal Mortality CAUSES Maternal Death referral Hospital Cameroon
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The Epidemiological Characteristics of Beijing Lineage Mycobacterium tuberculosis from a National Referral Center in China 被引量:2
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作者 LI Xiao Ying LI Ying +7 位作者 ZHANG Yao KANG Wan Li ZHAO Li Ping DING Peng Ju DAI Wen Tao HUANG Hai Rong HUANG Yan Feng LI Wei Min 《Biomedical and Environmental Sciences》 SCIE CAS CSCD 2015年第7期539-543,共5页
Our study was to investigate the epidemiological characteristics of M.tuberculosis from a national tuberculosis referral center in China. All strains isolated from TB patients, were genotyped by the RD105 deletion, 8 ... Our study was to investigate the epidemiological characteristics of M.tuberculosis from a national tuberculosis referral center in China. All strains isolated from TB patients, were genotyped by the RD105 deletion, 8 and 51 SNP loci and VNTR. The high differentiation SNPs of modern Beijing strains were analyzed for protein function and structure. 413 M. tuberculosis were included. Of 379 Beijing lineage M. tuberculosis, 'modern' and 'ancient' strains respectively represented 85.5% (324/379) and 14.5% (55/379). Rv2494 (V48A) and Rv0245 (Sl03F) were confirmed as high differentiation SNPs associated with modern strains. In a word, Modern Beijing lineage M.tuberculosis was dominant and the structural models suggested that modern sub-lineage may more easily survive in 'extreme' host condition. 展开更多
关键词 The Epidemiological Characteristics of Beijing Lineage Mycobacterium tuberculosis from a National referral Center in China SNPs VNTR Figure MST
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Hard exudates referral system in eye fundus utilizing speeded up robust features 被引量:1
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作者 Syed Ali Gohar Naqvi Hafiz Muhammad Faisal Zafar Ihsanul Haq 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2017年第7期1171-1174,共4页
In the paper a referral system to assist the medical experts in the screening/referral of diabetic retinopathy is suggested. The system has been developed by a sequential use of different existing mathematical techniq... In the paper a referral system to assist the medical experts in the screening/referral of diabetic retinopathy is suggested. The system has been developed by a sequential use of different existing mathematical techniques. These techniques involve speeded up robust features(SURF), K-means clustering and visual dictionaries(VD). Three databases are mixed to test the working of the system when the sources are dissimilar. When experiments were performed an area under the curve(AUC) of 0.9343 was attained. The results acquired from the system are promising. 展开更多
关键词 referral system speeded up robust features eye fundus visual dictionaries
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Age-determined referral criteria of myopia for large-scale vision screening 被引量:4
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作者 Hongjie Yu Yueqin Shao +1 位作者 Hong Yuan Bo Yan 《Eye Science》 CAS 2015年第4期151-155,共5页
Background: This study aimed to explore the best screening measure of myopia and its associated optimal referral criteria for children aged between 6 and 16.Methods: After informed consent of cycloplegia was obtained,... Background: This study aimed to explore the best screening measure of myopia and its associated optimal referral criteria for children aged between 6 and 16.Methods: After informed consent of cycloplegia was obtained, a total of 6,321 children aged between 6 and 16 from 53 primary or junior middle schools in Jiading District of Shanghai were included in our populationbased study. Receiver operating characteristic(ROC) curve was performed to determine the best cutoff points, sensitivities and specii cities of different screening tests, including uncorrected visual acuity(UCVA), noncycloplegic autorefraction(NCAR) and the combination of these two tests.Results: There was significant difference in prevalence of myopia between boys and girls(χ~2=6.358, P=0.012). Compared with children of low age, the prevalence of older children was significantly higher(χ~2=1,386.404, P<0.001). For the combination of UCVA and NCAR, the best cutoff point was UCVA less than or equal to 0.2 logarithm of minimum angle of resolution(MAR)(20/30) and NCAR spherical equivalent refraction(SER) less than or equal to -0.75 diopters(D), with associated sensitivity and specificity of 75.0% and 85.0%, respectively, which were higher than those of UCVA and NCAR alone. After stratified by age, the best cutof points were varied among children. The accuracy for children aged between 9 and 12 was higher than that for other ages.Conclusions: The best screening measure of myopia was the combination of UCVA and NCAR. The optimal referral criteria of myopia for children should be age-determined. 展开更多
关键词 年龄确定 近视眼 视力 标准 NCAR 筛查 筛选试验 操作特征
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Magnetic sphincter augmentation: Optimal patient selection and referral care pathways
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作者 F Paul Buckley Benjamin Havemann Amarpreet Chawla 《World Journal of Gastrointestinal Endoscopy》 CAS 2019年第8期472-482,共11页
Outcomes associated with magnetic sphincter augmentation (MSA) in patients with gastroesophageal reflux disease (GERD) have been reported,however the optimal population for MSA and the related patient care pathways ha... Outcomes associated with magnetic sphincter augmentation (MSA) in patients with gastroesophageal reflux disease (GERD) have been reported,however the optimal population for MSA and the related patient care pathways have not been summarized.This Minireview presents evidence that describes the optimal patient population for MSA,delineates diagnostics to identify these patients,and outlines opportunities for improving GERD patient care pathways.Relevant publications from MEDLINE/EMBASE and guidelines were identified from 2000-2018.Clinical experts contextualized the evidence based on clinical experience.The optimal MSA population may be the 2.2-2.4% of GERD patients who,despite optimal medical management,continue experiencing symptoms of heartburn and/or uncontrolled regurgitation,have abnormal pH,and have intact esophageal function as determined by high resolution manometry.Diagnostic work-ups include ambulatory pH monitoring,high-resolution manometry,barium swallow,and esophagogastroduodenoscopy.GERD patients may present with a range of typical or atypical symptoms.In addition to primary care providers (PCPs) and gastroenterologists (GIs),other specialties involved may include otolaryngologists,allergists,pulmonologists,among others.Objective diagnostic testing is required to ascertain surgical necessity for GERD.Current referral pathways for GERD management are suboptimal.Opportunities exist for enabling patients,PCPs,GIs,and surgeons to act as a team in developing evidence-based optimal care plans. 展开更多
关键词 GASTROESOPHAGEAL REFLUX disease Surgery MAGNETIC SPHINCTER augmentation referral PATHWAYS
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Knowledge and practices of primary care physicians on the current referral system of diabetic retinopathy in Islamabad and Rawal-Pindi, Pakistan
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作者 Muhammad Shakaib Anwar Baila Shakaib +4 位作者 Waseem Akhtar Erum Yusufzai Maham Zehra Hajira Munawar Kinza Azhar 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2019年第12期1885-1892,共8页
AIM: To assess the current knowledge and practices in diabetic eye care and referral system regarding diabetic retinopathy(DR) in health centers of Islamabad and RawalPindi. METHODS: A cross-sectional study was carrie... AIM: To assess the current knowledge and practices in diabetic eye care and referral system regarding diabetic retinopathy(DR) in health centers of Islamabad and RawalPindi. METHODS: A cross-sectional study was carried out in 4 government and private health centers in RawalpindiIslamabad from May 2018 to Oct. 2018. A total of 38 Primary Care Physicians(general practitioners, family physicians, and internists) were recruited out of which data for 2 were either not returned, or were missing partially. Data were collected through a 27-item consented & validated, multiple-choice questionnaire based on physician characteristics, knowledge and practice of diabetic eye care and challenges faced due current DR referral system. Descriptive analyses for all variables were performed including, mean and standard deviation. Analytical analyses were also conducted to study association between different study variables. RESULTS: Mean scores of knowledge for general practitioners, family physicians, and internists were 41.7%, 42.0% and 46.6% respectively. A lack of knowledge, and suboptimal practices were observed regarding signs, symptoms, screening, testing, evaluation and referral of DR regardless of physicians’ specialty, or years in practice. Lack of expertise regarding direct ophthalmoscopy, interpretation of findings, and referral to an ophthalmologist were noted. Physicians who performed consultation and counselling according to patients’ needs referred more patients to an ophthalmologist than those who restricted their consultationto a fixed amount of time and had more patients per unit time(P=0.01). Physicians who had taken care of less than 5 number of patients with DR marked less incorrect answers with no significantly greater number or correct answers compared to physicians who had taken care of more than 5 number of patients with DR(P=0.044). An association of more than 5 patients with DR taken care of with more need based patient consultation and counselling was also noted(P=0.017). An evaluation of the current referral system for DR revealed major loopholes in the health care infrastructure, proper guidelines, properly functioning equipment, check and balances, and lack of guidance to physicians regarding acquiring and updating knowledge regarding DR. CONCLUSION: Lack of updated and adequate knowledge, practices among primary care physicians, and suboptimal diabetic eye care and referral system have contributed to late presentation of DR. Interventions are needed to improve current diabetic eye care, and knowledge and practices of primary care physicians. 展开更多
关键词 diabetic retinopathy referral of diabetic retinopathy diabetic retinopathy guidelines primary care physicians
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Analysis of Referrals for Mandibular Advancement Appliances for Sleep Apnoea
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作者 David Parmenter Brian Millar 《Open Journal of Stomatology》 CAS 2022年第9期258-265,共8页
Aim: This article investigates the increasing awareness of Obstructive Sleep Apnoea (OSA) as a potentially serious health risk and highlights the role of the dentist in managing mild to moderate OSA cases which can be... Aim: This article investigates the increasing awareness of Obstructive Sleep Apnoea (OSA) as a potentially serious health risk and highlights the role of the dentist in managing mild to moderate OSA cases which can be improved with an intra-oral mandibular advancement appliance. Methods: Data from referrals to a Prosthodontic Unit from 01-01-2019 to 18-8-2022 were analysed. Results: A total of 240 consecutive referrals to an NHS hospital where a patient was fitted with a mandibular advancement appliance (MAA) were analysed and 160 (67%) were male and 80 (33%) were female. The mean age in years was 52 (2019), 50 (2020), 52 (2021) and 51 (2022). Mean age of male referrals was 51 and female referrals was 53. Conclusion: There are a large number of patients with OSA seeking a dental device and practitioners should be aware of this treatment modality to help the medical team manage OSA. Clinical relevance: Dentists may need to have a greater understanding of OSA and be able to provide MAAs. 展开更多
关键词 Sleep Apnoea Sleep Appliances Mandibular Advancement referrals
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A Study Protocol on the Evaluation of Referral Strategies for Inflammatory Arthritis in Primary Care Patients at the Level of Healthcare Organization, Patient Relevant Outcomes and Costs
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作者 Elke Theodora Antonia Maria van Delft Deirisa Lopes Barreto +5 位作者 Jan Arno Matteo Roeterink Khik Hoo Han Ilja Tchetverikov Anna Helena Maria van der Helm-van Mil Johanna Maria Wilhelmina Hazes Angelique Elisabeth Adriana Maria Weel 《Health》 2020年第3期240-252,共13页
Background: Considering the importance of getting the right patient at the right location to maintain and optimize quality of life of inflammatory arthritis patients, appropriate referral by general practitioners is e... Background: Considering the importance of getting the right patient at the right location to maintain and optimize quality of life of inflammatory arthritis patients, appropriate referral by general practitioners is essential. This study aims to assess the effect and cost effectiveness of different referral strategies for inflammatory arthritis in primary care patients. Methods: This study follows a cluster randomized controlled trial design. General practitioners from primary care centers in Southwest-The Netherlands are randomly assigned to either one of the two strategic interventions for referring adult patients who are in the opinion of the general practitioner suspected of inflammatory arthritis: 1) Standardized digital referral algorithm based on existing referral models PEST, CaFaSpA and CARE;2) Triage by a rheumatologist in the local primary care center. These interventions will be compared to a control group, e.g. usual care. The primary outcome is the percentage of patients diagnosed with inflammatory arthritis by the rheumatologist. Secondary outcomes are quality of life as a patient reported outcome, work participation and healthcare costs. These data, including demographic and clinical parameters, are prospectively collected at baseline, three, six, and twelve months. Discussion: If this study can demonstrate improvements in appropriate referrals to the rheumatologist, thereby improving cost-effectiveness, there is sufficient supporting evidence to implement one of the referral strategies as a standard of care. Finally, with these optimization strategies a higher quality of care can be achieved, that might be of value for all patients with arthralgia. Trial Registration: NCT03454438, date of registration: March 5, 2018. Retrospectively registered: https://clinicaltrials.gov/ct2/show/NCT03454438?term=NCT03454438&draw=1&rank=1. 展开更多
关键词 INFLAMMATORY ARTHRITIS Primary CARE referral COST-EFFECTIVENESS Cluster RANDOMIZED Trial Value Based Health CARE
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