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Severe symptomatic sinus bradycardia associated with mesalamine use
S Asirvatham1, C Sebastian, U Thadani
1Department of Medicine, The University of Oklahoma Health Sciences Center, Oklahoma City 73190, USA.
Mesalamine can cause serious heart problems like hypotension and bradycardia in ulcerative colitis patients. Use this medication cautiously, especially if there
Area of Science:
- Cardiology
- Gastroenterology
- Pharmacology
Background:
- Ulcerative colitis (UC) is a chronic inflammatory bowel disease.
- Mesalamine is a common treatment for UC.
- Cardiac adverse events are rare but serious complications of mesalamine therapy.
Observation:
- A 29-year-old woman with UC developed symptomatic hypotension and severe sinus bradycardia within hours of receiving intravenous mesalamine.
- These cardiac symptoms resolved upon mesalamine discontinuation.
- The patient experienced a recurrence of symptoms upon re-challenge with mesalamine during a subsequent hospitalization.
Findings:
- Recurrent hypotension and sinus bradycardia were temporally associated with mesalamine administration in a patient with ulcerative colitis.
- The patient had a family history of conduction tissue disease, suggesting a potential predisposition.
- Mesalamine may induce or exacerbate cardiac conduction abnormalities.
Implications:
- Mesalamine should be used with caution in patients with ulcerative colitis, particularly those with a history or predisposition to cardiac conduction tissue disease.
- Clinicians should be vigilant for cardiac adverse events during mesalamine therapy.
- Further investigation into the cardiac safety profile of mesalamine is warranted.
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