ABSTRACT
International air medical transport requires reliable equipment, skilled personnel and precise planning. A report is presented of an experience with 31 international transports. Details concerning equipment, personnel and logistics are presented. Results and problem areas are discussed. This early experience demonstrates the capability for the repatriation of critically ill patients, and the evacuation of patients who require access to a level of care which may be unavailable outside the United States.
Subject(s)
Aircraft , Emergency Medical Services/organization & administration , Transportation of Patients/organization & administration , Evaluation Studies as Topic , International CooperationABSTRACT
International air medical transport requires reliable equipment, skilled personnel and precise planning. A report is presented of an experience with 29 international transports. Details concerning equipment, personnel and logistics are presented. Results and problem areas are discussed. This early experience demonstrates the capability for the repatriation of critically ill patients, and the evacuation of patients who require access to a level of care which may be unavailable outside the United States.
Subject(s)
Aircraft , Ambulances/organization & administration , International Cooperation , Transportation of Patients/organization & administration , Alabama , Emergency Service, Hospital/organization & administrationABSTRACT
This article discusses preliminary results of a National Cancer Institute-sponsored pilot baseline survey in 1989 of smoking knowledge, attitude and habits among black smokers in four major U.S. cities: two in the North (Springfield, Massachusetts and Hartford, Connecticut) and two in the South (Durham, North Carolina and Columbia, South Carolina). It focuses on mass media readership, viewing and listening habits and a preliminary discussion of their application to practice.
ABSTRACT
The purposes of this study were (1) to describe normal wrist kinetics, and (2) to investigate the in-vitro kinetics of four currently available wrist prostheses (Swanson, Meuli, Volz, Hamas). The effective tendon moment arms of the six major wrist muscles were determined through the use of load cells and applied weights. Testing was conducted in a neutral wrist configuration with hand pronation-supination both constrained and unconstrained. The results indicate that each of the muscles studied has a unique set of effective tendon moment arms about the normal wrist as well as about wrists with the implanted prostheses, and that none of the prosthetic wrists studied duplicated normal wrist kinetics.
Subject(s)
Joint Prosthesis , Wrist Joint/physiology , Humans , In Vitro Techniques , Kinetics , Mathematics , Tendons/physiologyABSTRACT
Strain measurement within the cement surrounding stemmed total hip femoral components was accomplished using PMMA encapsulated and embedded strain gauges. Cement strain measurement associated with a well-bonded stem-cement interface and an unbonded stem-cement interface (i.e., loose prosthesis) was performed. The presence of a stem-cement bond was found to reduce proximal cement strain magnitudes while having little effect on distal cement strain magnitudes. The assurance of a stem-cement bond on only the proximal third of the interface was found to have an effect similar to that of a complete stem-cement bond. The results of this experimental investigation confirm the theoretical prediction that the stem-cement bond is important in maintaining the integrity of the cement mantle surrounding a stemmed femoral component.
