• Slobodan M Janković, Siniša Stojković, Milovan Petrović, Tomislav Kostić, Marija Zdravković, Slavica Radovanović, Radosava Cvjetan, Nenad Ratković, Branislav Rihor, Dejan Spiroski, Aleksandar Stanković, Branko Anđelković, and Renata Gocić Petrović.
• University of Kragujevac, Faculty of Medical Sciences and University Clinical Center, Kragujevac, Serbia.
• Medicine (Baltimore). 2023 Jun 2; 102 (22): e33941e33941.

AbstractAlthough true treatment resistant hypertension is relatively rare (about 7.3% of all patients with hypertension), optimal control of blood pressure is not achieved in every other patient due to suboptimal treatment or nonadherence. The aim of this study was to compare effectiveness, safety and tolerability of various add-on treatment options in adult patients with treatment resistant hypertension The study was designed as multi-center, prospective observational cohort study, which compared effectiveness and safety of various add-on treatment options in adult patients with treatment resistant hypertension. Both office and home blood pressure measures were recorded at baseline and then every month for 6 visits. The study cohort was composed of 515 patients (268 females and 247 males), with average age of 64.7 ± 10.8 years. The patients were switched from initial add-on therapy to more effective ones at each study visit. The blood pressure measured both at office and home below 140/90 mm Hg was achieved in 80% of patients with add-on spironolactone, while 88% of patients taking this drug also achieved decrease of systolic blood pressure for more than 10 mm Hg from baseline, and diastolic blood pressure for more than 5 mm Hg from baseline. Effectiveness of centrally acting antihypertensives as add-on therapy was inferior, achieving the study endpoints in <70% of patients. Adverse drug reactions were reported in 9 patients (1.7%), none of them serious. Incidence rate of hyperkalemia with spironolactone was 0.44%, and gynecomastia was found in 1 patient (0.22%). In conclusion, the most effective and safe add-on therapy of resistant hypertension were spironolactone alone and combination of spironolactone and a centrally acting antihypertensive drug.Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.

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