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Erschienen in: Endocrine 3/2022

08.09.2022 | Original Article

Pre- and peri-operative characteristics, complications and outcomes of patients with biochemically silent pheochromocytomas; a case series

verfasst von: Athanasios Fountas, Georgia Kanti, Spyridoula Glycofridi, Maria A. Christou, Athanasia Kalantzi, Irene Giagourta, Athina Markou, Georgia Ntali, Chrysanthi Aggeli, Eleftheria Saoulidou, Antonia Dimakopoulou, George N. Zografos, Theodora Kounadi, Stelios Tigas, Labrini Papanastasiou

Erschienen in: Endocrine | Ausgabe 3/2022

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Abstract

Purpose:

Pheochromocytomas are rare tumors and biochemically silent ones with normal catecholamine levels are even rarer. Up to date, biochemically inactive pheochromocytomas are poorly investigated. We aimed to systematically assess the pre- and peri-operative characteristics and the outcomes of patients with these tumors who had been treated and followed-up in 2 tertiary centers.

Methods:

Clinical, laboratory and imaging data, treatment outcomes and follow-up of biochemically silent pheochromocytoma patients were recorded.

Results:

Ten patients (5 men) [median age at diagnosis 52.5 years (24–72)] were included. Adrenal masses were incidentally discovered in all patients except from one who presented with pheochromocytoma-related manifestations. Twenty-four-hour urine metanephrine and normetanephrine levels were in the low-normal, normal and high-normal range in 4, 4 and 2 patients and in 1, 6 and 3 patients, respectively. Tumors were unilateral [median size 46 mm (17–125)] and high density on pre-contrast CT imaging or high signal intensity on T2-weighted MRI scans were found in all cases. Pre-operatively, 5 patients were treated with phenoxybenzamine [median total daily dose 70 mg (20–100)]. Intra-operatively, 4 patients developed hypertension requiring vasodilator administration and 8 developed hypotension; vasoconstrictors were required in 5 cases. One patient, not pre-operatively treated with phenoxybenzamine, developed Takotsubo cardiomyopathy. During a median 24-month (12–88) follow-up period, one patient had disease progression.

Conclusions:

The majority (90%) of patients with biochemically silent pheochromocytomas developed hemodynamic instability during adrenal surgery. In patients with biochemically silent adrenal lesions and a high suspicion index for pheochromocytoma based on tumor imaging characteristics, pre-operative alpha-blockade treatment may be advisable.
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Metadaten
Titel
Pre- and peri-operative characteristics, complications and outcomes of patients with biochemically silent pheochromocytomas; a case series
verfasst von
Athanasios Fountas
Georgia Kanti
Spyridoula Glycofridi
Maria A. Christou
Athanasia Kalantzi
Irene Giagourta
Athina Markou
Georgia Ntali
Chrysanthi Aggeli
Eleftheria Saoulidou
Antonia Dimakopoulou
George N. Zografos
Theodora Kounadi
Stelios Tigas
Labrini Papanastasiou
Publikationsdatum
08.09.2022
Verlag
Springer US
Erschienen in
Endocrine / Ausgabe 3/2022
Print ISSN: 1355-008X
Elektronische ISSN: 1559-0100
DOI
https://doi.org/10.1007/s12020-022-03182-w

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