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Biomedical subjects

R A Berg

Publications and source records attributed to R A Berg.

196 records · Page 11Linked to original sources
PubMed1971

The treatment of acute spinal cord injuries in a war zone.

The clinical course and method of treatment of 43 cases of spinal cord injury from Vietnam are presented. Compared with other wars, antibiotics and more efficient handling have reduced mortality and infection but have not improved the incidence of neurological recovery.

Acute Disease↗
PubMedDate not supplied

Nitrogen dioxide exposure and urinary excretion of hydroxyproline and desmosine.

The relationship between average and peak personal exposure to nitrogen dioxide and urinary excretion of hydroxyproline and desmosine was investigated in a population of preschool children and their mothers. Weekly average personal nitrogen dioxide exposures for subjects who resided in homes with one or more potential nitrogen dioxide source (e.g., a kerosene space heater, gas stove, or tobacco smoke) ranged between 16.3 and 50.6 ppb (30.6 and 95.1 micrograms/m3) for children and between 16.9 and 44.1 ppb (12.8 and 82.9 micrograms/m3) for mothers. In these individuals, the hydroxyproline-to-creatinine and desmosine-to-creatinine ratios were unrelated to personal nitrogen dioxide exposure--even though continuous monitoring documented home nitrogen dioxide concentration peaks of 100-475 ppb lasting up to 100 h in duration. Significantly higher hydroxyproline-to-creatinine and desmosine-to-creatinine ratios were observed in children, compared with mothers (p < .001 and .003, respectively).

Adult↗
PubMedDate not supplied

Efficacy of audio-prompted rate guidance in improving resuscitator performance of cardiopulmonary resuscitation on children.

OBJECTIVE: To evaluate the effect of audio-prompted rate guidance during chest compressions on the performance of cardiopulmonary resuscitation (CPR) on children. METHODS: This 24-month prospective study occurred in the pediatric intensive care units of a university hospital and a children's hospital. Intubated children with nontraumatic cardiac arrest were eligible. After placement of an infrared capnometer between the endotracheal tube and resuscitation bag, an audiotape instructed the resuscitator to perform chest compressions at 100 per minute or 140 per minute for one minute, followed by another minute at the other rate. End-tidal carbon dioxide partial pressure (PETCO2) was recorded prior to audiotape instruction and after one minute of CPR at each rate. RESULTS: Six patients, two boys and four girls, with a mean age of 15 +/- 13 months (range 2-36 months) were studied. All had asystole or pulseless electrical activity. CPR was provided for 14 +/- 9 minutes prior to institution of the study protocol. PETCO2 at 140/min was higher than at baseline (12 +/- 7 torr verus 4 +/- 3 torr, p < 0.05). There was a trend towards higher PETCO2s at 100/min compared with baseline (11 +/- 12 torr versus 4 +/- 3 torr, p = 0.08). PETCO2s did not differ at 100/min compared with 140/min. CONCLUSIONS: In support of prior adult and animal investigations suggesting that basic CPRR is often performed poorly and at inappropriately slow rates, audio- prompted rate guidance during CPR in children resulted in higher PETCO2, suggesting improved CPR performance.

Carbon Dioxide↗