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Intravascular Renal Denervation in Renal Dialysis Patients with Uncontrolled Hypertension: A Case Series of Four Patients.

ABSTRACT: BACKGROUND Hypertension is a common complication of renal dialysis and is inadequately controlled in approximately one-third of patients. Intravascular renal denervation is an option to control sympathetic overdrive and decrease blood pressure. Four renal dialysis patients are presented with uncontrolled hypertension who were treated with intravascular renal denervation. CASE REPORT In a renal dialysis unit, patients were screened for therapy-resistant hypertension, which was defined as an outpatient blood pressure >160/100 mmHg and a blood pressure by interdialytic ambulatory blood pressure monitoring (ABPM) >130/80 mmHg. Four patients were identified with a mean ABPM of 175/95 mmHg. The four patients included a 24-year-old man with neurogenic bladder undergoing hemodialysis; a 55-year-old woman with a history of type 1 diabetes mellitus undergoing peritoneal dialysis; a 56-year-old woman with a history of autosomal dominant polycystic kidney disease (ADPKD) undergoing peritoneal dialysis; and a 72-year-old man with a history of ADPKD undergoing hemodialysis Following intravascular renal denervation, one patient had antihypertensive medicines withdrawn at 12 months, and he remained normotensive up to renal transplantation at 24 months. In two patients, ABPM did not decrease until renal transplantation was performed. The fourth patient was not a candidate for renal transplantation, and he was also a non-responder for intravascular renal denervation. None of the patients experienced hypotension or other adverse events following intravascular renal denervation. CONCLUSIONS A case series of four patients showed that, for some patients who have unresponsive hypertension while on renal dialysis, intravascular renal denervation is a safe procedure.

SUBMITTER: Pietila-Effati PM

PROVIDER: S-EPMC6111771 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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Intravascular Renal Denervation in Renal Dialysis Patients with Uncontrolled Hypertension: A Case Series of Four Patients.

Pietilä-Effati Päivi M PM Salmela Anna K AK Koistinen M Juhani MJ

The American journal of case reports 20180821

BACKGROUND Hypertension is a common complication of renal dialysis and is inadequately controlled in approximately one-third of patients. Intravascular renal denervation is an option to control sympathetic overdrive and decrease blood pressure. Four renal dialysis patients are presented with uncontrolled hypertension who were treated with intravascular renal denervation. CASE REPORT In a renal dialysis unit, patients were screened for therapy-resistant hypertension, which was defined as an outpa ...[more]

PMID: 30127334

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Project description:BackgroundIt is unclear whether renal denervation (RDN) can safely result in blood pressure (BP) reductions in Asian hypertensive patients and whether such reductions would be sustainable. The study is to assess the safety and efficacy of RDN achieved by either main renal artery ablation using the Symplicity FlexTM catheter or main plus branch renal artery ablations using the Symplicity SpyralTM catheter in Taiwanese uncontrolled hypertensive patients enrolled in the Global SYMPLICITY Registry (GSR) with 3 years of follow-up.MethodsThe GSR is a prospective, open-label, and all-comer registry to evaluate the safety and effectiveness of RDN in patients with uncontrolled hypertension worldwide.ResultsAmong 26 patients enrolled (mean age, 59.1 ± 13.8 years), 8 were treated with the Symplicity FlexTM catheter, and 18 were treated with the Symplicity SpyralTM catheter. Baseline office systolic BP was 168.2 ± 19.8 mmHg and diastolic BP was 89.0 ± 14.3 mmHg. Office BP reductions following RDN were sustained throughout the follow-up periods of up to 3 years in the Symplicity FlexTM group and 2 years in the Symplicity SpyralTM group. In the Symplicity FlexTM group, the office systolic BP reductions were 14.9 ± 14.7 mmHg and 29.7 ± 25.9 mmHg at 3 months and 3 years, respectively (both p < 0.05 from baseline). In the Symplicity SpyralTM group, the office systolic BP reductions were 21.2 ± 28.7 mmHg and 42.4 ± 10.7 mmHg at 3 months and 2 years, respectively (both p < 0.05 from baseline). There were no significant changes in heart rate or antihypertensive medication classes. Three protocol-defined adverse events occurred in 2 patients, including new-onset end-stage renal disease, stroke, and hospitalization for new-onset heart failure.ConclusionsGiven the susceptibility of Asian populations to hypertension, RDN, as a safe antihypertensive procedure with long-lasting BP-lowering effects, could reliably serve as an alternative or complementary BP-lowering strategy for patients with uncontrolled hypertension in Taiwan and other Asian countries.

Dataset Information

Intravascular Renal Denervation in Renal Dialysis Patients with Uncontrolled Hypertension: A Case Series of Four Patients.

Publications

Intravascular Renal Denervation in Renal Dialysis Patients with Uncontrolled Hypertension: A Case Series of Four Patients.

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