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Risk of complications after core needle biopsy in pheochromocytoma/paraganglioma.
Endocrine-related Cancer 2023 April 2
Core needle biopsy (CNB) has been used with caution in pheochromocytoma and paraganglioma (PPGL) due to concerns about catecholamine-related complications. While it is unclear what scientific evidence supports this claim, it has limited the acquisition of biological samples for diagnostic purposes and research, especially in metastatic PPGL. We performed a systematic review and individual patient meta-analysis to evaluate the risk of complications after CNB in PPGL patients. The primary and secondary objectives were to investigate the risk of death and the occurrence of complications requiring intervention or hospitalization, respectively. Fifty-six articles describing 86 PPGL patients undergoing CNB were included. 34% (24/71) of patients had metastases and 53.4% (31/58) had catecholamine-related symptoms before CNB. 34.1% of patients (14/41) had catecholamine excess testing prior to biopsy. No CNB-related deaths were reported. Four patients (14.8%, 4/27) experienced CNB-related complications requiring hospitalization or intervention. One case had a temporary duodenal obstruction caused by hematoma, two cases had myocardial infarction, and one case had Takotsubo cardiomyopathy. Eight patients (32%, 8/25) had CNB-related catecholamine symptoms, mainly transient hypertension, excessive diaphoresis, tachycardia, or hypertensive crisis. The scientific literature does not allow us to make any firm conclusion on safety of CNB in PPGL. However, it's reasonable to argue that CNB could be conducted after thorough consideration, preparation and with close follow-up for PPGL patients with a strong clinical indication for such investigation.
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