Continuously monitoring pulse is very important for the pacemaker patients., and the continuously observing blood pressure is also a matter of concern for those who have hypertension, coronary heart disease, or other ...Continuously monitoring pulse is very important for the pacemaker patients., and the continuously observing blood pressure is also a matter of concern for those who have hypertension, coronary heart disease, or other cardiovascular diseases, for example cardiac arrhythmia and hypertension. What we expect is not only to eliminate arrhythmia, also to treat patients as a whole of body. Therefore, how to keeping monitoring blood pressure and pulses rise to a very important issue. This research edits a wrist-able sphygmomanometer and pulsimeter combining with cell phone, to achieve wireless, continuous, and real-time observation, early detects any accident occurring from the patients with pacemaker implementation or with other cardiovascular展开更多
BACKGROUND:Ultrasound guidance is commonly used for accessing difficult peripheral veins.For successful access,a tourniquet is required for venodilation.Tourniquets decrease the compressibility and increase the diamet...BACKGROUND:Ultrasound guidance is commonly used for accessing difficult peripheral veins.For successful access,a tourniquet is required for venodilation.Tourniquets decrease the compressibility and increase the diameter of veins;they also obfuscate artery-vein differentiation on ultrasound.We aimed to establish the upper limit of sphygmomanometer cuff pressure that facilitates artery-vein differentiation during ultrasound-guided peripheral intravenous access.METHODS:We employed the sphygmomanometer cuff as a tourniquet for venodilation and tested it on seven participants at six different levels as follows:0 mmHg,DBP/2,DBP,(DBP+SBP)/2,SBP,and SBP+20 mmHg.We used an ultrasound probe attached to a pressure-measuring instrument to record cross-sectional images of the cubital artery and vein.During ultrasonography,compression was applied to the blood vessels through the skin.The following day,we measured the wrist pulse pressure and observed the oximeter pulse wave at six different tourniquet pressure levels.Repeated-measures analysis of variance(ANOVA)on ranks and Tukey’s post-hoc analysis were used for multiple comparisons.RESULTS:Arterial pulsation was maintained at tourniquet pressures between 0 mmHg and(DBP+SBP)/2.However,arterial pulsation decreased or disappeared when the tourniquet pressure reached or exceeded the SBP.Moreover,at this pressure level,the superior compressibility of veins compared to that of arteries was no longer observed.Compression of the artery to 75% and 50% of its original diameter increased arterial pulsation.CONCLUSION:Arterial pulsation and the superior compressibility are useful indicators for differentiating veins from arteries until the tourniquet pressure reaches(DBP+SBP)/2.However,these indicators are not reliable once the tourniquet pressure exceeds the SBP.展开更多
Maximum Voluntary Ventilation (MVV), one of the components of Pulmonary Function Testing (PFT), has multiple uses. Various factors including the inspiratory muscle strength (IMS) influence its magnitude. Our aim was t...Maximum Voluntary Ventilation (MVV), one of the components of Pulmonary Function Testing (PFT), has multiple uses. Various factors including the inspiratory muscle strength (IMS) influence its magnitude. Our aim was to quantify the IMS indirectly using an economical and non invasive bedside assessment tool, determine its association with MVV and then develop a predictive equation for MVV. 41 healthy non-athletic physical therapy students participated in the study. IMS measurement was performed with a sphygmomanometer. Average of the three net deflections in sphygmomanometer following deepest possible breaths was taken as indirect measurement of IMS in mm of Hg. MVV was measured according to ATS guidelines using a spirometer. Results from the data analysis revealed a significant correlation between IMS and MVV(r = 0.83, p < 0.001) and the coefficient of determination = 0.68. So, we developed a regression equation: Y = 1.9669(X) + 49.838 with SEE: 13.02L/min and ANOVA for the equation was (F=68.9, p < 0.001). Hence, it can be concluded that a strong correlation between the indirect IMS and MVV was established and a predictive equation to estimate MVV was developed. This equation proved to have a high predictive value with a small error of estimation. This indicates that the value of the indirect IMS measurement obtained using the sphygmomanometer can be used to estimate MVV in normal healthy individuals without the use of a conventional spirometer.展开更多
The first aid and immediately help are very important in an accident. The earlier detection and treatment we do, the better prognosis and health patients have. In the senior populations, it is more important. Once sen...The first aid and immediately help are very important in an accident. The earlier detection and treatment we do, the better prognosis and health patients have. In the senior populations, it is more important. Once seniors have an accident, not only physically injure in their body, but also mental and social ability, and may have severe sequela. Concerning about these populations, this research design a simple, practical, and portable device of real-time monitoring body activity with sphygmomanometer and pulsimeter. When an accident occurs, the signals go through mobile phone, immediately notify the remote ends and provide first time help.展开更多
文摘Continuously monitoring pulse is very important for the pacemaker patients., and the continuously observing blood pressure is also a matter of concern for those who have hypertension, coronary heart disease, or other cardiovascular diseases, for example cardiac arrhythmia and hypertension. What we expect is not only to eliminate arrhythmia, also to treat patients as a whole of body. Therefore, how to keeping monitoring blood pressure and pulses rise to a very important issue. This research edits a wrist-able sphygmomanometer and pulsimeter combining with cell phone, to achieve wireless, continuous, and real-time observation, early detects any accident occurring from the patients with pacemaker implementation or with other cardiovascular
基金supported by the Department of Advanced Acute Medicine at Nagoya City University.
文摘BACKGROUND:Ultrasound guidance is commonly used for accessing difficult peripheral veins.For successful access,a tourniquet is required for venodilation.Tourniquets decrease the compressibility and increase the diameter of veins;they also obfuscate artery-vein differentiation on ultrasound.We aimed to establish the upper limit of sphygmomanometer cuff pressure that facilitates artery-vein differentiation during ultrasound-guided peripheral intravenous access.METHODS:We employed the sphygmomanometer cuff as a tourniquet for venodilation and tested it on seven participants at six different levels as follows:0 mmHg,DBP/2,DBP,(DBP+SBP)/2,SBP,and SBP+20 mmHg.We used an ultrasound probe attached to a pressure-measuring instrument to record cross-sectional images of the cubital artery and vein.During ultrasonography,compression was applied to the blood vessels through the skin.The following day,we measured the wrist pulse pressure and observed the oximeter pulse wave at six different tourniquet pressure levels.Repeated-measures analysis of variance(ANOVA)on ranks and Tukey’s post-hoc analysis were used for multiple comparisons.RESULTS:Arterial pulsation was maintained at tourniquet pressures between 0 mmHg and(DBP+SBP)/2.However,arterial pulsation decreased or disappeared when the tourniquet pressure reached or exceeded the SBP.Moreover,at this pressure level,the superior compressibility of veins compared to that of arteries was no longer observed.Compression of the artery to 75% and 50% of its original diameter increased arterial pulsation.CONCLUSION:Arterial pulsation and the superior compressibility are useful indicators for differentiating veins from arteries until the tourniquet pressure reaches(DBP+SBP)/2.However,these indicators are not reliable once the tourniquet pressure exceeds the SBP.
文摘Maximum Voluntary Ventilation (MVV), one of the components of Pulmonary Function Testing (PFT), has multiple uses. Various factors including the inspiratory muscle strength (IMS) influence its magnitude. Our aim was to quantify the IMS indirectly using an economical and non invasive bedside assessment tool, determine its association with MVV and then develop a predictive equation for MVV. 41 healthy non-athletic physical therapy students participated in the study. IMS measurement was performed with a sphygmomanometer. Average of the three net deflections in sphygmomanometer following deepest possible breaths was taken as indirect measurement of IMS in mm of Hg. MVV was measured according to ATS guidelines using a spirometer. Results from the data analysis revealed a significant correlation between IMS and MVV(r = 0.83, p < 0.001) and the coefficient of determination = 0.68. So, we developed a regression equation: Y = 1.9669(X) + 49.838 with SEE: 13.02L/min and ANOVA for the equation was (F=68.9, p < 0.001). Hence, it can be concluded that a strong correlation between the indirect IMS and MVV was established and a predictive equation to estimate MVV was developed. This equation proved to have a high predictive value with a small error of estimation. This indicates that the value of the indirect IMS measurement obtained using the sphygmomanometer can be used to estimate MVV in normal healthy individuals without the use of a conventional spirometer.
文摘The first aid and immediately help are very important in an accident. The earlier detection and treatment we do, the better prognosis and health patients have. In the senior populations, it is more important. Once seniors have an accident, not only physically injure in their body, but also mental and social ability, and may have severe sequela. Concerning about these populations, this research design a simple, practical, and portable device of real-time monitoring body activity with sphygmomanometer and pulsimeter. When an accident occurs, the signals go through mobile phone, immediately notify the remote ends and provide first time help.
