[A portable sternal compressor for cardiac massage on a patient carried by a litter--Part 3: Applicability of the device tested by a recording manikin].
Effects of a portable sternal compressor developed by us was examined by 43 medical students (28 males and 15 females) and 9 anesthesia residents using a recording manikin. Compression over a depth of 3.5 to 5.0 cm was classified as adequate. First, the examinee held the device affixed in front of the chest with a belt hanged over the shoulder and pulled the other handle back and forth at a rate of 100 per minute. The male students could perform adequate compression in 92% of the total number of compression in the first one minute, while female students could in 65%. Though the anesthesia residents accomplished 99% of success rate in the first one minute, the rate fell to nearly 80% in the next minute and about 50% thereafter due to fatigue. When one handle was sustained on the floor with its fold-in stand and held between the knees of the examinee sitting on a chair, adequate compression was performed with the success rate of over 80% for 5 minutes. We conclude this device will be useful for cardiac massage on a patient either transported on a litter or lying on a soft bed.
Yoshitake
Atsushi
A
Department of Anesthesiology, Kumamoto University School of Medicine, Kumamoto, 860-8556.
Nishi
Masaaki
M
Maeda
Asako
A
Okamoto
Taisuke
T
Morioka
Tohru
T
Terasaki
Hidenori
H
D000328:Adult; D004867:Equipment Design; D005069:Evaluation Studies as Topic; D005260:Female; D006336:Heart Massage / Q000295:instrumentation* / Q000592:standards*; D006801:Humans; D008297:Male; D008348:Manikins; D011312:Pressure; D011996:Records; D013249:Sternum; D014187:Transportation of Patients