Comparison of pheochromocytoma-specific mobidity and mortality among adults with bilateral pheochromocytomas undergoing total adrenalectomy versus cortical-sparing adrenalectomy

Research output: Contribution to journalArticlepeer-review

Abstract

IMPORTANCE:
Large studies investigating long-term outcomes of patients with bilateral pheochromocytomas treated with either total or cortical-sparing adrenalectomies are needed to inform clinical management.

OBJECTIVE:
To determine the association of total vs cortical-sparing adrenalectomy with pheochromocytoma-specific mortality, the burden of primary adrenal insufficiency after bilateral adrenalectomy, and the risk of pheochromocytoma recurrence.

DESIGN, SETTING, AND PARTICIPANTS:
This cohort study used data from a multicenter consortium-based registry for 625 patients treated for bilateral pheochromocytomas between 1950 and 2018. Data were analyzed from September 1, 2018, to June 1, 2019.

EXPOSURES:
Total or cortical-sparing adrenalectomy.

MAIN OUTCOMES AND MEASURES:
Primary adrenal insufficiency, recurrent pheochromocytoma, and mortality.

RESULTS:
Of 625 patients (300 [48%] female) with a median (interquartile range [IQR]) age of 30 (22-40) years at diagnosis, 401 (64%) were diagnosed with synchronous bilateral pheochromocytomas and 224 (36%) were diagnosed with metachronous pheochromocytomas (median [IQR] interval to second adrenalectomy, 6 [1-13] years). In 505 of 526 tested patients (96%), germline mutations were detected in the genes RET (282 patients [54%]), VHL (184 patients [35%]), and other genes (39 patients [7%]). Of 849 adrenalectomies performed in 625 patients, 324 (52%) were planned as cortical sparing and were successful in 248 of 324 patients (76.5%). Primary adrenal insufficiency occurred in all patients treated with total adrenalectomy but only in 23.5% of patients treated with attempted cortical-sparing adrenalectomy. A third of patients with adrenal insufficiency developed complications, such as adrenal crisis or iatrogenic Cushing syndrome. Of 377 patients who became steroid dependent, 67 (18%) developed at least 1 adrenal crisis and 50 (13%) developed iatrogenic Cushing syndrome during median (IQR) follow-up of 8 (3-25) years. Two patients developed recurrent pheochromocytoma in the adrenal bed despite total adrenalectomy. In contrast, 33 patients (13%) treated with successful cortical-sparing adrenalectomy developed another pheochromocytoma within the remnant adrenal after a median (IQR) of 8 (4-13) years, all of which were successfully treated with another surgery. Cortical-sparing surgery was not associated with survival. Overall survival was associated with comorbidities unrelated to pheochromocytoma: of 63 patients who died, only 3 (5%) died of metastatic pheochromocytoma.

CONCLUSIONS AND RELEVANCE:
Patients undergoing cortical-sparing adrenalectomy did not demonstrate decreased survival, despite development of recurrent pheochromocytoma in 13%. Cortical-sparing adrenalectomy should be considered in all patients with hereditary pheochromocytoma.
Translated title of the contributionСравнительная оценка заболеваемости и смертности среди лиц с билатеральной феохромоцитомой вследствие тотальной адреналэктомии и частичной кортикальной рецекции надпочечников
Original languageEnglish
Article numbere198898
JournalJAMA Internal Medicine
Volume2
Issue number8
StateAccepted/In press - 10 Apr 2019

Fingerprint

Dive into the research topics of 'Comparison of pheochromocytoma-specific mobidity and mortality among adults with bilateral pheochromocytomas undergoing total adrenalectomy versus cortical-sparing adrenalectomy'. Together they form a unique fingerprint.

Cite this