Evidence map›Paper›PMID 30571547›Full record

ArticleHypertension (Dallas, Tex. : 1979)2019

Out-of-Clinic Sympathetic Activity Is Increased in Patients With Masked Uncontrolled Hypertension.

Mohammed Siddiqui, Eric K Judd, Byron C Jaeger, Hemal Bhatt, Tanja Dudenbostel, Bin Zhang, Lloyd J Edwards, Suzanne Oparil, David A Calhoun

Open access · bronzeAbstract read
In one paragraph

Article in Hypertension (Dallas, Tex. : 1979), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
3.1field-weighted citation impact, top 7% of its field
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

21 citing papers in PubMed, 40 citations in OpenAlex.

  1. Article
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  4. Blood pressure and vascular function response to maximal graded exercise tests in young men with masked hypertension.American journal of physiology. Regulatory, integrative and comparative physiology · 2025
    Article
  5. Heart rate variability: reference values and role for clinical profile and mortality in individuals with heart failure.Clinical research in cardiology : official journal of the German Cardiac Society · 2024
    Article
  6. Article
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  11. Office blood pressure measurement: A comprehensive review.Journal of clinical hypertension (Greenwich, Conn.) · 2021
    Review
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  15. Observational
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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 at 2 institutions in 1 country.

Mohammed SiddiquiFrom the Vascular Biology and Hypertension Program, Division of Cardiovascular Disease (M.S., T.D., S.O., D.A.C.), University of Alabama at Birmingham.
Eric K JuddDivision of Nephrology (E.K.J.), University of Alabama at Birmingham.
Byron C JaegerSchool of Medicine, Department of Biostatistics, School of Public Health (B.C.J., L.J.E.), University of Alabama at Birmingham.
Hemal BhattDivision of Cardiovascular Disease, Einstein Medical Center, Philadelphia, Pennsylvania (H.B.).
Tanja DudenbostelFrom the Vascular Biology and Hypertension Program, Division of Cardiovascular Disease (M.S., T.D., S.O., D.A.C.), University of Alabama at Birmingham.
Bin ZhangDivision of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center, University of Cincinnati, Ohio (B.Z.).
Lloyd J EdwardsSchool of Medicine, Department of Biostatistics, School of Public Health (B.C.J., L.J.E.), University of Alabama at Birmingham.
Suzanne OparilFrom the Vascular Biology and Hypertension Program, Division of Cardiovascular Disease (M.S., T.D., S.O., D.A.C.), University of Alabama at Birmingham.
David A CalhounFrom the Vascular Biology and Hypertension Program, Division of Cardiovascular Disease (M.S., T.D., S.O., D.A.C.), University of Alabama at Birmingham.
University of Alabama at Birmingham · USEinstein Medical Center Philadelphia · US

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

Masked uncontrolled hypertension (MUCH) is defined as controlled automated office blood pressure (BP; AOBP <135/85 mm Hg) in-clinic in patients receiving antihypertensive medication(s) but uncontrolled BP out-of-clinic by 24-hour ambulatory BP monitoring (ABPM; awake ≥135/85 mm Hg). We hypothesized that MUCH patients have greater out-of-clinic sympathetic activity compared with true controlled hypertensives. Patients being treated for hypertension were prospectively recruited after 3 or more consecutive clinic visits. All patients were evaluated by in-clinic automated office BP, plasma catecholamines, and spot-urine/plasma metanephrines. In addition, out-of-clinic 24-hour ABPM, 24-hour urinary for catecholamines and metanephrines was done. Out of 237 patients recruited, 169 patients had controlled in-clinic BP of which 156 patients had completed ABPM. Seventy-four were true controlled hypertensives, that is controlled by clinic automated office BP and by out-of-clinic ABPM. The remaining 82 were controlled by clinic automated office BP, but uncontrolled during out-of-clinic ABPM, indicative of MUCH. After exclusion of 4 patients because of inadequate or lack of 24-hour urinary collections, 72 true controlled hypertensive and 80 MUCH patients were analyzed. MUCH patients had significantly higher out-of-clinic BP variability and lower heart rate variability compared with true controlled hypertensives, as well as higher levels of out-of-clinic urinary catecholamines and metanephrines levels consistent with higher out-of-clinic sympathetic activity. In contrast, there was no difference in in-clinic plasma catecholamines and spot-urine/plasma levels of metanephrines between the 2 groups, consistent with similar levels of sympathetic activity while in clinic. MUCH patients have evidence of heightened out-of-clinic sympathetic activity compared with true controlled hypertensives, which may contribute to the development of MUCH.

Indexed as

Masked HypertensionMetanephrineSympathetic Nervous SystemAgedAnalysis of VarianceAntihypertensive AgentsBlood Pressure DeterminationBlood Pressure Monitoring, AmbulatoryCatecholaminesFemaleHeart RateHumansMaleMiddle AgedTreatment OutcomeUnited StatesAntihypertensive AgentsCatecholaminesMetanephrineblood pressurecatecholaminesheart ratehypertensionmasked hypertension

Identifiers

PMID30571547
PMCPMC6309788
OpenAlexW2901660780

What OpenQuestion holds

Textmetadata
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Read underepoch 390

Registered trials

None linked

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.