A new technique for subclavian puncture.

A new technique for performing and teaching subclavian punctures based on the finding of a new landmark--a small tubercle on the medial aspect of the deltopectoral groove, is presented. This tubercle has been found to be easily palpable on 92% of individuals examined. With this new landmark and the technique described the novice can quickly master this procedure with very little difficulty. The author found that both clinicians inexperienced in subclavian puncture and nursing personnel performed the procedure successfully after the first or second trial.