Related Experiment Video
Updated: Jul 17, 2026
A Novel Method: Super-selective Adrenal Venous Sampling
Published on: September 15, 2017
[Cardiovascular disorders in patients with pheochromocytoma]
Insights
This study on pheochromocytoma patients found that surgery effectively resolves left ventricular hypertrophy and systolic overload. It also highlights the occurrence of heart rhythm disturbances during hypertensive crises.
Area of Science:
- Cardiology
- Endocrinology
- Pathophysiology
Context:
- Pheochromocytoma, a rare adrenal tumor, secretes catecholamines, leading to significant cardiovascular complications.
- Understanding these complications is crucial for effective patient management and treatment strategies.
Purpose:
- To analyze cardiovascular disturbances in pheochromocytoma patients.
- To identify pathogenetic aspects of cardiac rhythm abnormalities.
- To evaluate the impact of surgical intervention on hemodynamic changes.
Summary:
- Retrospective analysis of 100 pheochromocytoma patients undergoing surgery.
- Catecholamine secretion from adrenal tumors causes mixed arterial hypertension, often with left ventricular hypertrophy (61% of patients).
- Surgical treatment resolved hypertension-related left ventricular hypertrophy and systolic overload; 27% experienced rhythm disturbances during hypertensive crises.
Impact:
- Surgical treatment of pheochromocytoma can reverse cardiac remodeling caused by hypertension.
- Identifies specific cardiac rhythm issues (tachycardia, extrasystole, sinoatrial node dysfunction) associated with hypertensive crises in pheochromocytoma.
- Provides insights into the pathophysiology of cardiovascular complications in pheochromocytoma, aiding clinical decision-making.
Abstract:
The present study focuses on variants of cardiovascular disturbances in patients with pheochromocytoma, on identification of certain pathogenetic aspects of disturbances of the heart's rhythm, on the study of the impact of surgical treatment on hemodynamic shifts. A retrospective analysis was performed of 100 clinical records of those patients having had surgery for pheochromocytoma over the last five years. It has been ascertained that a major proportion of tumours of the chromaffin tissue of the adrenals secret epinephrine and norepinephrine giving rise to a mixed form of arterial hypertension. In 61 percent of patients, arterial hypertension tended to be accompanied by hypertrophy of the left ventricle and its systolic overload (3%) that has been noted to dispel after surgical treatment. In 27 percent of patients with pheochromocytoma, against the background of hypertensive crisis, abnormalities of metabolism or unstable coronary circulation there come to be seen paroxysms of disturbances of the heart's rhythm (extrasystole, paroxismal tachycardia) and dysfunction of the sinoatrial node.
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