Evidence map›Paper›PMID 30950576›Full record

ArticleJournal of clinical hypertension (Greenwich, Conn.)2019

P wave peak time: A time window to evaluate left ventricular diastolic function.

Hao-Chih Chang, Hao-Min Cheng

Abstract readComment
In one paragraph

Article in Journal of clinical hypertension (Greenwich, Conn.), 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–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. Article
  2. Article
  3. P wave peak time: A time window to evaluate left ventricular diastolic function.Journal of clinical hypertension (Greenwich, Conn.) · 2019
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

2 authors.

Hao-Chih ChangDivision of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.ORCID 0000-0002-6256-2194
Hao-Min ChengCenter for Evidence-based Medicine, Taipei Veterans General Hospital, Taipei, Taiwan.ORCID 0000-0002-3885-6600

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The activation time from electrical signals to chamber conformational change has long been demonstrated to associate with LV performance and ventriculo-arterial coupling with prognostic implications in heart failure patients. P wave peak time (PWPT), an easily obtainable parameter from conventional surface electrocardiography, represents the time taken for excitation spreading from sinoatrial node to the maximal summation of positive deflection from both atria. Increased PWPT denotes prolonged intra- or inter-atrial conduction time and indicates elevated intra-atrial pressure. As shown in a recently published study, PWPT was highly correlated with LV end diastolic pressure (LVEDP) derived from direct measurement during cardiac catheterization. With its objective and easily obtainable nature, clinical application of PWPT to evaluate diastolic function can be expected, if more studies in different populations can confirm its clinical utility.

Indexed as

Echocardiography, DopplerHypertensionBlood PressureDiastoleHumansVentricular Function, Lefthypertensionleft ventricular diastolic dysfunctionP wave peak time

Identifiers

PMID30950576
PMCPMC8030523

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.