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Pericardial effusion associated with minoxidil therapy: case reports
S Kadir1, K Osinfade, S O Lawal
1Department of Medicine, University College Hopital, Ibadan.
West African Journal of Medicine
|January 1, 1992
Summary
Minoxidil can cause symptomatic pericardial effusion (PE) in patients with chronic renal failure (CRF). Regular monitoring for PE is crucial for CRF patients using minoxidil for hypertension management.
Area of Science:
- Nephrology
- Cardiology
- Pharmacology
Background:
- Hypertension is a common complication in patients with chronic renal failure (CRF).
- Minoxidil is a potent antihypertensive agent sometimes used in refractory cases.
- Pericardial effusion (PE) is a potential adverse effect of certain medications.
Observation:
- Two patients with CRF developed symptomatic PE after more than three months of minoxidil treatment.
- One patient experienced fatal cardiac tamponade due to minoxidil-induced PE.
- Other CRF patients on different antihypertensives did not develop PE.
Findings:
- Minoxidil use is associated with the development of symptomatic pericardial effusion in CRF patients.
- The risk appears significant, potentially leading to life-threatening complications like cardiac tamponade.
- This adverse effect was not observed with other antihypertensive agents in the study cohort.
Implications:
- Clinicians should be vigilant for PE in CRF patients prescribed minoxidil.
- Regular clinical examination for signs of PE is recommended for these patients.
- Alternative antihypertensive strategies may be considered to mitigate PE risk in CRF.