Individualised renal artery denervation improves blood pressure control in Kazakhstani patients with resistant hypertension.
BACKGROUND
The prevalence of hypertension in Kazakhstan is high, and the majority of patients are not adequately controlled. Treatment with renal artery denervation (RAD) could represent a useful therapeutic option for a subset of patients in Kazakhstan with resistant hypertension.


OBJECTIVE
To assess the impact of RAD in a cohort of patients from Kazakhstan with resistant hypertension.


METHODS
Between March 2012 and December 2013, 63 patients underwent RAD at our tertiary care centre. Eligibility criteria were office blood pressure more than 160 mm Hg systolic (SBP) or more than 90 mm Hg diastolic (DBP) despite being treated with three or more antihypertensive medications, including a diuretic. Ambulatory blood pressure was measured at baseline and at month 12, and monitoring also included impact on insulin resistance and renal function.


RESULTS
There were significant decreases of 25 ± 24 mm Hg for ambulatory SBP during the daytime and of 26 ± 23 mm Hg for ambulatory SBP during the nighttime (p < 0.0001). We observed significant decreases of 12 ± 14 mm Hg for ambula-tory daytime DBP and of 11 ± 14 mm Hg in ambulatory nighttime DBP (p < 0.0001). A decrease in creatinine clearance was observed from 100.2 ± 33.6 mL/min at baseline to 90.2 ± 22.8 mL/min at month 12 (p < 0.001). Homeostasis model assessment-insulin resistance (HOMA-IR) decreased from 3.0 ± 4.6 at baseline to 2.5 ± 3.7 at 12 months (p = 0.007).


CONCLUSIONS
In this population RAD resulted in statistically and clinically significant blood pressure reduction at 12 months with minimal adverse events.
"National Research Centre for Cardiac Surgery" JSC, Astana Medical University, Kazakhstan. dr.aripov@gmail.com.
Marat
M
Aripov
Abdurashid
A
Mussayev
Serik
S
Alimbayev
Alexey
A
Goncharov
Gulnara
G
Zhusupova
Yuriy
Y
Pya
D000328:Adult; D000368:Aged; D018660:Blood Pressure Monitoring, Ambulatory; D003329:Coronary Vasospasm / Q000601:surgery*; D003714:Denervation / Q000009:adverse effects*; D005260:Female; D006801:Humans; D006973:Hypertension / Q000601:surgery*; D007623:Kazakhstan; D008297:Male; D008875:Middle Aged; D012077:Renal Artery / Q000294:innervation*; D016896:Treatment Outcome
Central Asia; Kazakhstan; insulin resistance; renal artery denervation; resistant hypertension