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Pacemaker related arm swelling and concern for venous thrombosis or outflow obstruction

April 6, 2026r/AskDocs

In r/AskDocs, commenters focus on post pacemaker swelling as a possible clot or subclavian vein narrowing, urging reassessment despite prior negative testing and emphasizing escalation if symptoms worsen.

Likely outflow issues due to pacemaker.
Watch for worsening swelling, pain which would prompt more rapid eval.
How exactly did they ‘rule out’ a blood clot? That seems like the most likely explanation
r/AskDocs
cardiologydiagnostic uncertainty

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