Evidence map›Paper›PMID 40175677›Full record

Trial reportHypertension research : official journal of the Japanese Society of Hypertension2025

Two-year nighttime blood pressure changes after radiofrequency renal denervation: pooled results from the SPYRAL HTN trials.

Kazuomi Kario, David E Kandzari, Felix Mahfoud, Michael A Weber, Roland E Schmieder, Konstantinos Tsioufis, Minglei Liu, Michael Böhm, Raymond R Townsend

Abstract readRandomized Controlled Trial
In one paragraph

Trial report in Hypertension research : official journal of the Japanese Society of Hypertension, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Guideline
  2. Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Kazuomi KarioDepartment of Cardiovascular Medicine, Jichi Medical University School of Medicine, Tochigi, Japan. kkario@jichi.ac.jp.
David E KandzariPiedmont Heart Institute, Atlanta, GA, USA.
Felix MahfoudCardiovascular Research Institute Basel (CRIB), University Heart Center, University Hospital Basel, Basel, Switzerland.
Michael A WeberSUNY Downstate College of Medicine, New York, NY, USA.
Roland E SchmiederUniversity Hospital Erlangen, Friedrich Alexander University Erlangen/Nurnberg, Nurnberg, Germany.
Konstantinos TsioufisNational and Kapodistrian University of Athens Hippocratio Hospital, Athens, Greece.
Minglei LiuMedtronic Inc, Santa Rosa, CA, USA.
Michael BöhmUniversitätsklinikum des Saarlandes, Saarland University, Homburg, Germany.
Raymond R TownsendPerelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Elevated nighttime blood pressure (BP) and abnormal circadian dipping patterns are associated with advanced age and coexisting illnesses and are attributed to autonomic dysfunction. Radiofrequency renal denervation (RF RDN) effectively lowers BP throughout 24 h and thus may provide an effective antihypertensive therapeutic option. This analysis assesses the effects of RDN on nocturnal hypertension with different dipper patterns defined by nighttime/daytime BP ratio (i.e. dippers, non-dippers, risers) through 2 years in patients randomized to RDN from the SPYRAL HTN-OFF MED and -ON MED trials. Office and 24-h ambulatory BP, were also evaluated in patients stratified by age, obstructive sleep apnea (OSA), type 2 diabetes mellitus (T2DM) and chronic kidney disease (CKD). Among 388 patients, the baseline nighttime systolic BP (SBP) was 139.3 ± 11.3 mmHg. Patients with a riser pattern had the highest baseline nighttime SBP (152.7 ± 8.0 mmHg). At 2 years, patients experienced a significant reduction from baseline (p < 0.0001) in nighttime (-12.0 ± 17.1 mmHg), morning (-14.8 ± 20.0 mmHg), daytime (-13.8 ± 14.7 mmHg), and 24-h SBP (-13.4 ± 14.2 mmHg). The greatest reduction in SBP was in risers at nighttime (-23.7 ± 14.3 mmHg). RDN was equally effective in lowering nighttime BP in patients ≥65 years old or with OSA, CKD, or T2DM. In this pooled dataset of RF RDN patients, clinically meaningful reductions in BP over a 24-h period were observed through 2 years irrespective of dipping status. RF RDN may reduce the risk of cardiovascular outcomes in patients with uncontrolled hypertension, especially in those with elevated nighttime BP who may be the most challenging to treat.

Indexed as

Blood PressureCircadian RhythmHypertensionKidneySympathectomyAdultAgedBlood Pressure Monitoring, AmbulatoryFemaleHumansMaleMiddle AgedRenal Insufficiency, ChronicSleep Apnea, ObstructiveTreatment OutcomeCardiovascular riskNocturnal hypertensionRenal denervation

Identifiers

PMID40175677
PMCPMC12137119

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.