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Updated: Jul 19, 2026

A Novel Method: Super-selective Adrenal Venous Sampling
Published on: September 15, 2017
Challenging the advanced: cardiac surgery without awareness of a pheochromocytoma
T Walker1, D H L Bail, E Schmid
1Department of Thoracic, Cardiac and Vascular Surgery, Tübingen University, Tübingen, Germany. tobias.walker@med.uni-tuebingen.de
Insights
Pheochromocytoma diagnosis during cardiac surgery is critical. Uncontrolled catecholamine release from this adrenal tumor can cause severe intraoperative complications and increase patient mortality risk.
Area of Science:
- Cardiology
- Endocrinology
- Surgical Oncology
Background:
- Cardiac surgery carries inherent risks, including hemodynamic instability.
- Undiagnosed pheochromocytoma presents a significant surgical challenge due to catecholamine excess.
Observation:
- A 75-year-old male undergoing bypass surgery experienced intraoperative hypertension.
- This led to an anastomotic tear and subsequent bleeding, requiring intervention.
Findings:
- Postoperative diagnostics confirmed an intraoperative diagnosis of pheochromocytoma.
- This adrenal tumor caused excessive catecholamine release, leading to hypertensive crisis.
Implications:
- Awareness of pheochromocytoma is vital for cardiac surgery to prevent severe morbidity and mortality.
- Prompt diagnosis and management of pheochromocytoma can mitigate life-threatening hemodynamic instability and complications.
Abstract:
We report the case of a 75-year-old male patient who underwent bypass surgery. Intraoperatively unstable hemodynamics with excessive arterial blood pressure was observed. This resulted in the tearing of an anastomosis, which subsequently required hemostasis for repeated bleeding. Postoperatively, laboratory findings and diagnostic imaging confirmed the diagnosis made intraoperatively of a pheochromocytoma. Any surgery without awareness of the possibility of a pheochromocytoma will dramatically increase intraoperative and postoperative morbidity and mortality, especially in cardiac surgery. The uncontrolled release of catecholamines raises arterial blood pressure which can become life-threatening and lead to serious intraoperative complications, as well as cerebrovascular and cardiac comorbidity.
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