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Biomedical subjects

J S Jeret

Publications and source records attributed to J S Jeret.

At least 19 recordsLinked to original sources
PubMed1996

Brainstem AVM.

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Adult↗
PubMed1996

Apnea testing.

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Apnea↗
PubMed1994

Risk of hypotension during apnea testing.

OBJECTIVE: To determine the safety of apnea testing. DESIGN: Prospective, consecutive study. SETTING: Inner-city trauma center. PATIENTS: A total of 70 apnea tests were performed on 61 comatose patients as part of the determination of brain death. RESULTS: Only 43 examinations (61%) were well tolerated. During 27 examinations (39%) patients either developed marked hypotension (> or = 15% drop in mean arterial pressure) (n = 23) or required prophylactic vasopressor manipulation (n = 4). Of the 27 examinations in which hypotension developed, 14 were aborted, two were tolerated despite marked hypotension, four were tolerated after administration of prophylactic epinephrine (n = 1) or dopamine hydrochloride (n = 3), and seven were successfully completed after increases in the rate of dopamine infusion during the test. CONCLUSIONS: Hypotension can pose a significant risk to patients undergoing apnea testing. Constant monitoring of vital signs throughout the test is essential to its safe completion.

Adult↗
PubMed1993

Clinical predictors of abnormality disclosed by computed tomography after mild head trauma.

We prospectively studied 712 consecutive patients during a 1-year period who presented with amnesia or loss of consciousness after nonpenetrating head trauma and who had a perfect Glasgow Coma Scale score of 15. Of the 67 (9.4%) patients with acute traumatic lesions disclosed by computed tomography (CT) of the head, 2 required neurosurgical intervention and 1 died. Four factors were statistically correlated (P < 0.05) with abnormal CT findings: Older age, white race, signs of basilar skull fracture, and being either a pedestrian hit by a motor vehicle or a victim of an assault. Sex, length of antero- or retrograde amnesia, forward and reverse digit spans, object recall, focal abnormality on the general neurological exam, and subjective complaints were not statistically correlated with CT abnormality. Using step-wise discriminant function analysis, no single item or combination of items could be used to classify 95% of the patients into either the normal or abnormal CT group. Therefore, regardless of age, mechanism of injury, or clinical findings, intracranial lesions cannot be completely excluded clinically on head-trauma patients who have loss of consciousness or amnesia, even if the Glasgow Coma Scale score is 15. However, only two patients (0.3%) required neurosurgical intervention.

Adolescent↗