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Biomedical subjects

J S McCormick

Publications and source records attributed to J S McCormick.

52 records · Page 3Linked to original sources
PubMed1974

The operative cholangiogram: its interpretation, accuracy and value in association with cholecystectomy.

The value and errors of one method of operative cholangiography were assessed prospectively with the aim of reducing further the incidence of unnecessary explorations of the common bile duct and the occurrence of residual stones. Operative cholangiograms were obtained using a cystic duct cannula in 174 cases, the technical failure rate being 2%. All cases were followed up using intravenous cholangiography where necessary. Of 129 judged normal by the operator, 2 were found to have common bile duct stones-false negative rate 1%. Of 45 judged abnormal by the operator, 10 had negative explorations- false positive rate 6%. Anomalies were discovered in 12% of patients. It is concluded that meticulous technique and accurate interpretation are essential for the best results. The high incidence of anatomical variations present is of interest and this alone emphasises the necessity of carrying out the investigation and the need of experienced interpretation.

Biliary Tract Diseases↗
PubMed1971

Comparative trial of three heterologous anti-tetanus sera.

The three heterologous anti-sera currently provided for tetanus prophylaxis have been compared with reference to the production of untoward reactions in 498 patients, and to the blood antitoxin concentrations produced in 76 patients. Equine serum, although giving rise to more reactions, was the only effective agent in terms of the levels and duration of serum antitoxin concentration produced. The local response to a test dose of any of the three sera is not a reliable guide to immediate or late general reactions.

Animals↗