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An Incidental Finding of a Large Pheochromocytoma in an Asymptomatic Male: A Case Report.
Cureus
December 2024
Diabetes and Endocrinology, Peterborough City Hospital, Peterborough, GBR.
Pheochromocytoma is a rare neuroendocrine tumor that secretes excess catecholamines. Patients present with a classical triad of headache, palpitations, and sweating. If untreated, pheochromocytoma can result in life-threatening cardiovascular complications.
View Article and Find Full Text PDFA modified single-catheter approach for improving adrenal venous sampling in patients with primary aldosteronism.
J Vasc Access
December 2023
Department of Cardiology, The First Affiliated Hospital of Chengdu Medical College, Chengdu, Sichuan, PR China.
Objectives: Adrenal vein sampling (AVS) is an established procedure for assessing subtype patients with primary aldosteronism (PA). However, it is technically challenging, with high failure rates, which limits its application in clinical practice. Our study aimed to evaluate the safety and efficacy of a single-catheter modified approach for AVS.
View Article and Find Full Text PDFPre-interventional assessment of right renal to right adrenal vein distance: Impact on procedure time and radiation dose in adrenal vein sampling.
PLoS One
January 2023
Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
Purpose: Adrenal vein sampling (AVS) is the reference standard for evaluation of lateralized hormone production in primary aldosteronism. We aimed to investigate the impact of pre-interventional right renal vein (RRV) to right adrenal vein (RAV) distance measurement on fluoroscopy time, contrast agent exposure and radiation dose during AVS.
Materials And Methods: Forty-five patients with primary aldosteronism undergoing AVS were enrolled in our retrospective study and divided into three groups.
Radiation dose reduction during adrenal vein sampling using a new angiographic imaging technology.
Sci Rep
April 2022
Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
To compare the patient radiation doses during angiographic selective adrenal vein sampling (AVS) before and after an imaging technology upgrade. In this retrospective single-center-study, cumulative air kerma (AK), cumulative dose area product (DAP), fluoroscopy time and contrast agent dosage were recorded from 70 patients during AVS. 35 procedures were performed before and 35 after an imaging processing technology upgrade.
View Article and Find Full Text PDFSegmental Arterial Mediolysis: A Multiguised Vasospastic Arteriopathy with Collateral Mesangial Cell Hyperplasia and Cardiac Toxicity Generated by Norepinephrine and Hyperdense Adrenoceptors Alone or by Crosstalk with Other Pressor Agents.
Int J Vasc Med
November 2021
1793 Childs Rd, Lake Oswego, Oregon, USA.
Segmental arterial mediolysis (SAM), an uncommon vasospastic arteriopathy occurring in the muscular arteries innervated by the peripheral sympathetic nervous system, usually presents with catastrophic abdominal and retroperitoneal hemorrhages in elderly patients. SAM is initiated by the coupling of norepinephrine to plastically derived hyperdense foci of alpha-1 adrenergic receptors on the sarcolemma of arterial muscle. This ligand is created by stimuli signaled by iatrogenic sympathomimetic agonists, some beta-2 agonists, or an excessive release of adrenal catecholamines.
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