Evidence map›Paper›PMID 28696223›Full record

ArticleHypertension (Dallas, Tex. : 1979)2017

White-Coat Effect Is Uncommon in Patients With Refractory Hypertension.

Mohammed Siddiqui, Eric K Judd, Suzanne Oparil, David A Calhoun

Abstract read
In one paragraph

Article in Hypertension (Dallas, Tex. : 1979), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Attended Versus Unattended Automated Office Blood Pressure: A Systematic Review and Meta-analysis.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2019
    Pooled it
  3. Pooled it
  4. Target Blood Pressure Values in Ambulatory Blood Pressure Monitoring.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2023
    Article
  5. Article
  6. Relations between white coat effect of blood pressure and arterial stiffness.Journal of clinical hypertension (Greenwich, Conn.) · 2022
    Article
  7. An Update on Refractory Hypertension.Current hypertension reports · 2022
    Review
  8. Article
  9. Refractory hypertension: what do we know so far?Journal of human hypertension · 2021
    Article
  10. Observational
  11. Article
  12. Article
  13. Article
  14. Prevalence and Clinical Characteristics of Refractory Hypertension.Journal of the American Heart Association · 2017
    Article
  15. Article
  16. 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

4 authors.

Mohammed SiddiquiFrom the Vascular Biology and Hypertension Program, University of Alabama at Birmingham. siddiquimohd@gmail.com.
Eric K JuddFrom the Vascular Biology and Hypertension Program, University of Alabama at Birmingham.
Suzanne OparilFrom the Vascular Biology and Hypertension Program, University of Alabama at Birmingham.
David A CalhounFrom the Vascular Biology and Hypertension Program, University of Alabama at Birmingham.

Funding

MECHANISMS OF HYPERTENSION AND CARDIOVASCULAR DISEASEST32HL007457 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI Martin E Young · 1985 to 2026
$8.6M
Mechanisms of Refractory HypertensionR01HL113004 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI OPARIL, SUZANNE · 2014 to 2018
$2.5M
Vascular effects of mineralocorticoid receptor antagonism in kidney disease.K23DK102660 · NIDDK · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI JUDD, ERIC K · 2015 to 2019
$944k
NHLBI NIH HHS R01 HL113004NHLBI NIH HHS T32 HL007457NIDDK NIH HHS K23 DK102660
6 · The paper itself

Abstract

Refractory hypertension is a recently described phenotype of antihypertensive treatment failure defined as uncontrolled blood pressure (BP) despite the use of ≥5 different antihypertensive agents, including chlorthalidone and spironolactone. Recent studies indicate that refractory hypertension is uncommon, with a prevalence of ≈5% to 10% of patients referred to a hypertension specialty clinic for uncontrolled hypertension. The prevalence of white-coat effect, that is, uncontrolled automated office BP ≥135/85 mm Hg and controlled out-of-office BP <135/85 mm Hg, by awake ambulatory BP monitor in hypertensive patients overall is ≈30% to 40%. The prevalence of white-coat effect among patients with refractory hypertension has not been previously reported. In this prospective evaluation, consecutive patients referred to the University of Alabama at Birmingham Hypertension Clinic for uncontrolled hypertension were enrolled. Refractory hypertension was defined as uncontrolled automated office BP ≥135/85 mm Hg with the use of ≥5 antihypertensive agents, including chlorthalidone and spironolactone. Automated office BP measurements were based on 6 serial readings, done automatically with the use of a BpTRU device unobserved in the clinic. Out-of-office BP measurements were done by 24-hour ambulatory BP monitor. Thirty-four patients were diagnosed with refractory hypertension, of whom 31 had adequate ambulatory BP monitor readings. White-coat effect was present in only 2 patients, or 6.5% of the 31 patients with refractory hypertension, suggesting that white-coat effect is largely absent in patients with refractory hypertension. These findings suggest that white-coat effect is not a common cause of apparent lack of BP control in patients failing maximal antihypertensive treatment.

Indexed as

HypertensionWhite Coat HypertensionAdultAntihypertensive AgentsBlood Pressure Monitoring, AmbulatoryChlorthalidoneDrug ResistanceFemaleHumansMaleMiddle AgedPrevalenceProspective StudiesSpironolactoneUnited StatesAntihypertensive AgentsChlorthalidoneSpironolactoneambulatory blood pressure monitoringblood pressurerefractory hypertensionspironolactonewhite-coat effect

Identifiers

PMID28696223
PMCPMC5552439

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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.