This case report describes a previously unreported complication of transvenous pacing electrodes: superior vena caval obstruction without thrombus formation due to localized stenosis at a retracted electrode's cut end.
Raises suspicion for electrode-related stenosis in unexplained SVC obstruction; extends the spectrum of known transvenous pacing complications.
Superior vena caval obstruction is a rare complication of transvenous endocardial pacing and is usually the result of thrombus formation round the pacing electrode (Kosowsky and Barr, 1972). We report a case of superior vena caval obstruction without thrombus formation secondary to localised stenosis at the site of the proximal cut end of a retracted endocardial electrode. This complication of transvenous pacing electrodes has not been described previously.
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Matthews et al. (1979) studied this question.
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