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Biomedical subjects

J R Popplow

Publications and source records attributed to J R Popplow.

4 recordsLinked to original sources

A review of Canadian Forces Search and Rescue Technician medical training and operations, 1990-93.

This study examined whether the 8 weeks of initial medical training and 9 d re-certification every 3 yr given to Canadian Forces (CF) Search and Rescue Technicians (SAR Techs) was satisfactory. The course content was compared with 272 held medical case documents for the period 1990-93, inclusive. This practical medical care data showed a predominance of trauma rescue cases: 35% were life threatening conditions and 65% were non-life threatening conditions. They ranged from trauma, chest pain, abdominal pain, hypothermia, diabetic insulin overdose to stroke and gynecological bleeding. Of the life-threatening cases, 32% needed advanced treatment skills and 15% of the non-life threatening cases needed advanced treatment skills. It was concluded that the content of the initial and re-certification medical training was satisfactory as long as immediate transport to a specialist medical center was possible.

Canada↗

Scott Emergency Escape Breathing Device evaluation for use by aircraft cabin crew and passengers.

The Scott Emergency Escape Breathing Device (EEBD) was evaluated for use in Canadian Forces (CF) transport/passenger aircraft in providing smoke protection during emergencies and in preventing hypoxia during cabin decompression at high altitude. Five human subjects wearing the EEBD were subjected to decompression from 2,438 m (8,000 ft) to 9,753 m (32,000 ft) in approximately 15 s followed by a free fall to 7,010 m (23,000 ft) in a challenge gas atmosphere of 5,000 ppm of carbon monoxide (CO), where they performed moderate exercise (80 W output) on a bicycle ergometer. Very little in-leakage of CO was observed when the neck seal was maintained. Hood atmosphere was measured at 97% oxygen at 7,010 m, which resulted in an arterial oxygen saturation (SaO2) of 97%. Temperature in the hood rose to as high as 45.5 degrees C but the subjects were able to function normally. The EEBD is effective in providing noncockpit aircraft crew with smoke protection, adequate vision, and hypoxia prevention for at least 15 min in the event of a fire, smoke, or decompression emergencies at altitudes up to 7,010 m following a brief exposure to 9,753 m.

Accidents, Aviation↗

After the fire-ball.

A hypothetical aircraft accident scenario is described in which the pilot survives but some of the passengers are fatally injured. Information is provided on the acute situational anxiety that may occur in aircrew after any aviation accident, especially one in which lives are lost. A course of action is discussed which encourages early recognition and treatment of the potentially debilitating phenomenon termed "post-accident anxiety syndrome".

Accidents, Aviation↗

Cardiopulmonary responses to combined lateral and vertical acceleration.

To investigate the effects of a lateral G force, eight stress panel members were each subjected to a series of stresses using +/- 1.5, 2, or 2.5 Gy combined with either +/- 1 or +/- 2 Gz, for 30 s followed by a 60-s recovery period. Peripheral arterial oxygen saturation, utilizing a Hewlett-Packard 47201A ear oximeter and heart rate were recorded. A consistent fall in arterial oxygen saturation (SaO2) was observed during all the Gy/Gz exposures with the +Gy direction giving the lowest value of 90.1% SaO2 (PaO2 of less than 60 mmHg). A small but consistent increase in heart rate (HR) was also observed during, and for 15 to 20 s after the Gy/Gz exposure. These results indicate that the cardiopulmonary system is stressed during combined Gy/Gz acceleration and the most important change occurs in SaO2.

Acceleration↗