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[Reversible left intraventricular obstruction after treatment of pheochromocytoma and hyperthyroidism]
M P Gandolfini1, A M Lefrançois, I Pannier-Moreau
1Service de cardiologie, hôpital Max Fourestier, Nanterre.
Insights
This case study presents a rare combination of pheochromocytoma, hyperthyroidism, and cardiomyopathy. Triple therapy, including beta-blockers, effectively managed symptoms and perioperative risks.
Area of Science:
- Cardiology
- Endocrinology
- Oncology
Background:
- Pheochromocytoma can cause cardiac issues like left ventricular outflow tract obstruction.
- Hyperthyroidism is rarely associated with pheochromocytoma.
- Cardiomyopathy in pheochromocytoma typically resolves with tumor treatment.
Observation:
- An original case report details the co-occurrence of pheochromocytoma, hyperthyroidism, and cardiomyopathy with left ventricular outflow tract obstruction.
- The patient presented with a rare triad of endocrine and cardiac conditions.
- Associated hyperthyroidism potentially exacerbated the left ventricular pressure gradient.
Findings:
- A novel triple therapy regimen, including beta-blockers, was administered preoperatively.
- This unusual approach provided effective blood pressure control.
- The therapy successfully reduced left ventricular obstruction during the perioperative period.
Implications:
- This case highlights the importance of considering rare endocrine-cardiac associations.
- The successful use of beta-blockers in this complex scenario challenges traditional contraindications.
- Aggressive medical management can mitigate perioperative risks in complex pheochromocytoma cases.
Abstract:
The authors report an original case of the association of three pathologies: pheochromocytoma, hyperthyroidism and cardiomyopathy with left ventricular outflow tract obstruction. This type of cardiac disease has occasionally been described in cases of pheochromocytoma and are usually induced by the endocrine disturbance because they regress with treatment of the pheochromocytoma. The associated hyperthyroidism observed in this case is very rare and may have increased the left ventricular pressure gradient. Medical treatment before surgery of the pheochromocytoma was unusual in that a triple therapy was used including betablockers, classically contra-indicated in pheochromocytoma alone. In this case, it provided excellent control of the blood pressure and decreased the left ventricular obstruction during the perioperative period.