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Outcomes After Surgery for Unilateral Dominant Primary Aldosteronism in Sweden

Journal article
Authors Fredrik Sellgren
A. Koman
E. Nordenstrom
P. Hellman
J. Hennings
Andreas Muth
Published in World Journal of Surgery
ISSN 0364-2313
Publication year 2019
Published at Institute of Clinical Sciences, Department of Surgery
Language en
Links dx.doi.org/10.1007/s00268-019-05265...
Keywords primary hyperaldosteronism, hypertensive patients, resolution score, adrenalectomy, diagnosis, management, society, classification, complications, prevalence, Surgery
Subject categories Surgery

Abstract

Background Primary aldosteronism (PA) is the most common cause of secondary hypertension. Surgery is the mainstay of treatment for unilateral dominant PA, but reported cure rates varies. The aim of the present study was to investigate contemporary follow-up practices and cure rates after surgery for PA in Sweden. Methods Patients operated for PA and registered in the Scandinavian Quality Register for Thyroid, Parathyroid and Adrenal Surgery (SQRTPA) 2009-2015 were identified. Patient data were extracted, and follow-up data (1-24 months) was recorded. Doses of antihypertensive medication and potassium supplementation were calculated using defined daily doses (DDD), and the Primary Aldosteronism Surgical Outcome (PASO) criteria were used to evaluate outcomes. Results Of 190 registered patients, 171 (47% female, mean age 53 years, median follow-up 3.7 months) were available for analysis. In 75 patients (44%), missing data precluded evaluation of biochemical cure according to the PASO criteria. Minimal invasive approach was used in 168/171 patients (98%). Complication rate (Clavien-Dindo >3a) was 3%. No mortality was registered. Pre/postoperatively 98/66% used antihypertensives (mean DDD 3.7/1.5). 89/2% had potassium supplementation (mean DDD 2.0/0) before/after surgery. Complete/partial biochemical and clinical success according to the PASO criteria were achieved in 92/7% and 34/60%, respectively. Conclusion In this study, reflecting contemporary clinical practice in Sweden complete/partial biochemical and clinical success after surgery for PA was 92/7% and 34/60%. Evaluation of biochemical cure was hampered by lack of uniform reporting of relevant outcome measures. We suggest mandatory reporting of surgical outcomes using the PASO criteria for all units performing surgery for PA.

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