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Biomedical subjects

M W Levitt

Publications and source records attributed to M W Levitt.

3 recordsLinked to original sources
PubMed1982

Intravenous cannulas. Survey of their use in patients undergoing elective surgery.

A study of the complications associated with use of intravenous cannulas was conducted in 254 patients undergoing elective surgery at Westmead Centre. Four brands of cannula were studied. Surflo, Jelco, Dwellcath and Abbocath. It was found that the Surflo cannula was the most frequently used at Westmead Centre, that the dorsum of the hand was the site with the least number of complications, and that gauge of cannula had no influence on the rate of complications. Complications were more likely with blood transfusion or addition of potassium or antibiotic agents to the infusion, and the increasing duration of infusion. Abbocath cannulas had fewer complications associated with their use than the other cannulas studied.

Adult↗
PubMed1982

Carbon dioxide response after epidural morphine.

The change in minute volume in response to a rising inspired carbon dioxide concentration was compared in 20 patients who received epidural morphine for postoperative analgesia (the test group), and 18 patients who did not (the control group). The minute volume increase in the test group was depressed at 6 hours but not at 12 hours postoperatively, but the degree of depression as not statistically significant. Control patients had no significant respiratory depression at any time. When the test and control groups were compared with each other, no statistically significant difference between groups was found. Two patients in the test group demonstrated a markedly depressed response to carbon dioxide challenge postoperatively. The incidence of nausea and vomiting was similar in both groups, while the presence of severity of pain was reduced in the test group.

Adolescent↗