- Nonpneumatic Anti-Shock Garment versus Intermittent Sequential Compression Device for Prevention of Postspinal Hypotension in Patients Undergoing Cesarean Section: A Randomized Controlled Study. [Journal Article]Anesth Essays Res 2019 Apr-Jun; 13(2):383-388AE
- CONCLUSIONS: NASG proved to be a more effective device for prevention of postspinal hypotension when compared with application of SCD or no device.
- Mechanical and physiological effect of partial pressure suit: Experiment and numerical study. [Journal Article]Technol Health Care 2017; 25(S1):35-44TH
- CONCLUSIONS: The numerical model provides a potential way to improve the protection of pilots.
- Optimizing the physical ergonomics indices for the use of partial pressure suits. [Journal Article]Appl Ergon 2015; 47:72-83AE
- This study developed an ergonomic evaluation system for the design of high-altitude partial pressure suits (PPSs). A total of twenty-one Chinese males participated in the experiment which tested three types of ergonomics indices (manipulative mission, operational reach and operational strength) were studied using a three-dimensional video-based motion capture system, a target-pointing board, a ha…
This study developed an ergonomic evaluation system for the design of high-altitude partial pressure suits (PPSs). A total of twenty-one Chinese males participated in the experiment which tested three types of ergonomics indices (manipulative mission, operational reach and operational strength) were studied using a three-dimensional video-based motion capture system, a target-pointing board, a hand dynamometer, and a step-tread apparatus. In total, 36 ergonomics indices were evaluated and optimized using regression and fitting analysis. Some indices that were found to be linearly related and redundant were removed from the study. An optimal ergonomics index system was established that can be used to conveniently and quickly evaluate the performance of different pressurized/non-pressurized suit designs. The resulting ergonomics index system will provide a theoretical basis and practical guidance for mission planners, suit designers and engineers to design equipment for human use, and to aid in assessing partial pressure suits.
- Effects of patient-controlled abdominal compression on standing systolic blood pressure in adults with orthostatic hypotension. [Randomized Controlled Trial]Arch Phys Med Rehabil 2015; 96(3):505-10AP
- CONCLUSIONS: These results suggest that mild (10mmHg) abdominal compression prior to rising can ameliorate OH, but further compression once standing does not result in additional benefit.
- Influence of rostral fluid shift on upper airway size and mucosal water content. [Randomized Controlled Trial]J Clin Sleep Med 2014; 10(10):1069-74JC
- CONCLUSIONS: Our results suggest that rostral fluid shift may contribute to the pathogenesis of OSA at least partly through narrowing of the UA due to transudation of fluid into the UA mucosa.
- Increased mortality associated with EMS transport of gunshot wound victims when compared to private vehicle transport. [Journal Article]Injury 2014; 45(9):1320-6I
- CONCLUSIONS: Wide variation exists in transport mode for GSW patients across the United States. Mortality may be higher for GSW patients transported by EMS when compared to private vehicle transport. Further studies should be performed to examine this question.
- The hydrostatic pressure indifference point underestimates orthostatic redistribution of blood in humans. [Randomized Controlled Trial]J Appl Physiol (1985) 2014; 116(7):730-5JA
- The hydrostatic indifference point (HIP; where venous pressure is unaffected by posture) is located at the level of the diaphragm and is believed to indicate the orthostatic redistribution of blood, but it remains unknown whether HIP coincides with the indifference point for blood volume (VIP). During graded (± 20°) head-up (HUT) and head-down tilt (HDT) in 12 male volunteers, we determined HIP f…
The hydrostatic indifference point (HIP; where venous pressure is unaffected by posture) is located at the level of the diaphragm and is believed to indicate the orthostatic redistribution of blood, but it remains unknown whether HIP coincides with the indifference point for blood volume (VIP). During graded (± 20°) head-up (HUT) and head-down tilt (HDT) in 12 male volunteers, we determined HIP from central venous pressure and VIP from redistribution of both blood, using ultrasound imaging of the inferior caval vein (VIPui), and fluid volume, by regional electrical admittance (VIPadm). Furthermore, we evaluated whether inflation of medical antishock trousers (to 70 mmHg) affected HIP and VIP. Leaving cardiovascular variables unaffected by tilt, HIP was located 7 ± 4 cm (mean ± SD) below the 4th intercostal space (IC-4) during HUT and was similar (7 ± 3 cm) during HDT and higher (P < 0.0001) than both VIPui (HUT: 22 ± 16 cm; HDT: 13 ± 7 cm) and VIPadm (HUT: 29 ± 9 cm; HDT: 20 ± 9 cm below IC-4). During HUT antishock trousers elevated both HIP and VIPui [to 3 ± 5 cm (P = 0.028) and 17 ± 7 cm below IC-4 (P = 0.051), respectively], while VIPadm remained unaffected. By simultaneous recording of pressure and filling of the inferior caval vein as well as fluid distribution, we found HIP located corresponding to the diaphragm while VIP was placed low in the abdomen, and that medical antishock trousers elevated both HIP and VIP. The low indifference point for volume shows that the gravitational influence on distribution of blood is more profound than indicated by the indifference point for venous pressure.
- A review of the hemodynamic effects of external leg and lower body compression. [Review]Minerva Anestesiol 2014; 80(3):355-65MA
- CONCLUSIONS: ELC may help future research and optimizing treatment of hemodynamically unstable, surgical or critically ill patients, independent of plasma volume expansion.
- Overview of medical operations for a manned stratospheric balloon flight. [Journal Article]Aviat Space Environ Med 2013; 84(3):237-41AS
- CONCLUSIONS: Medical operations were found to be highly successful when field-tested during this stratospheric flight, and the experience allowed for refinement of medical operations for future flights. The lessons learned and practices established for this program can easily be used to tailor a plan specific to other aviation or spaceflight events.
New Search Next
- Pathophysiology, prevention, and treatment of ebullism. [Review]Aviat Space Environ Med 2013; 84(2):89-96AS
- CONCLUSIONS: Available literature suggests that the pathophysiology of ebullism leads to predictable and often treatable injuries, and that many exposures may be survivable. With the growing number of high altitude and space-related activities, more individuals will be at risk for ebullism. An integrated medical protocol can provide guidance for the prevention and treatment of ebullism and help to mitigate this risk in the future.