Evidence map›Paper›PMID 21750900›Full record

SynthesisCardiovascular drugs and therapy2011

Cardiac resynchronization therapy in patients with mild heart failure: a systematic review and meta-analysis of randomized controlled trials.

Ronghui Tu, Guoqiang Zhong, Zhiyu Zeng, Weifeng Wu, Hai Wu, Xiaoli Cao, Lynn Htet Htet Aung

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Cardiovascular drugs and therapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.0field-weighted citation impact, top 21% 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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. Electrical devices for left ventricular dysfunction and heart failure: do we need revised guidelines?Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2012
    Article
  3. Article
  4. Article
  5. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Ronghui TuDepartment of Geriatric Cardiology, First Afiliated Hospital, Guangxi Medical University, 22 Shuangyong Road, 530000, Nanning, Guangxi, People's Republic of China.
Guoqiang Zhong
Zhiyu Zeng
Weifeng Wu
Hai Wu
Xiaoli Cao
Lynn Htet Htet Aung
Guangxi Medical University · CNFirst Affiliated Hospital of GuangXi Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis review aims at updating the results of cardiac resynchronization therapy (CRT) in mild heart failure patients, and investigating whether CRT can prevent or reverse heart failure progression in an earlier stage.

methodsRandomized controlled trials of CRT in patients with New York Heart Association (NYHA) Class I or II heart failure were identified. The effects of CRT on worsening heart failure hospitalization, all-cause mortality, and overall adverse events were meta-analyzed, and the effects of CRT on left ventricular (LV) were systematically reviewed and meta-analyzed.

resultsEight studies were identified with a total of 4,302 patients. CRT was associated with a substantial improvement in LV end-systolic volume (WMD -39, 95%CI -41.56 to -36.45). CRT also had a marked effect in reducing new hospitalizations for worsening heart failure by 31% (RR 0.69, 95%CI 0.60 to 0.79). In addition, CRT significantly decreased all-cause mortality by 21% (RR 0.79, 95%CI 0.67 to 0.93). However, complications in patients with CRT increased by 74% (RR 1.74, 95%CI 1.44 to 2.11).

conclusionsThis meta-analysis suggests that CRT could improve the prognosis in patients with mild heart failure and ventricular dyssynchrony, but these improvements are accompanied by more adverse events. Since most patients in the included trials had received ICD therapy, our analysis suggests that CRT could offer an additional benefit.

Indexed as

Cardiac Resynchronization TherapyRandomized Controlled Trials as TopicAgedFemaleHeart FailureHospitalizationHumansMaleMiddle AgedVentricular Remodeling

Identifiers

PMID21750900
PMCPMC3151402
OpenAlexW2083550966

What OpenQuestion holds

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LicenceCC BY-NC
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.