Evidence map›Paper›PMID 39866502›Full record

ArticleHeliyon2025

Effects of pulsatile flow on postoperative recovery in adult cardiac surgery with cardiopulmonary bypass: A systematic review and meta-analysis of randomized controlled trials.

Weidong Yan, Tianlong Wang, Jing Wang, RuiNing Yang, Han Zhang, Mingru Zhang, Bingyang Ji

Abstract read
In one paragraph

Article in Heliyon, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

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

  1. Pooled it
  2. Article
  3. Review
  4. 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

7 authors.

Weidong YanDepartment of Cardiopulmonary Bypass, Fuwai Hospital, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Tianlong WangDepartment of Cardiopulmonary Bypass, Fuwai Hospital, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Jing WangDepartment of Cardiopulmonary Bypass, Fuwai Hospital, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
RuiNing YangDepartment of Anesthesiology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100022, China.
Han ZhangDepartment of Cardiopulmonary Bypass, Fuwai Hospital, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Mingru ZhangDepartment of Cardiopulmonary Bypass, Fuwai Hospital, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
Bingyang JiDepartment of Cardiopulmonary Bypass, Fuwai Hospital, National Center for Cardiovascular Disease, State Key Laboratory of Cardiovascular Medicine, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The role of pulsatile versus non-pulsatile flow during cardiopulmonary bypass (CPB) is still in debate. This systematic review aimed to comprehensively assess the impact of pulsatile versus non-pulsatile flow on patients' recovery. Methods: We searched MEDLINE, EMBASE, and Cochrane Library databases for randomized controlled trials comparing pulsatile and non-pulsatile flow in cardiac surgeries with CPB. Data were analyzed using the random-effects model. Then, sensitive analysis and meta-regression were conducted. Findings: 32 studies including 2568 patients were considered in this meta-analysis. There is no difference in in-hospital mortality between the two groups (risk ratio [RR] = 0.74, 95 % confidence interval [CI] = 0.35-1.56, p = 0.43). The ICU stay for the pulsatile group was still significantly shorter than that for the non-pulsatile group (mean difference [MD] = -0.19, 95%CI = -0.35∼-0.03, p = 0.02). Patients in the pulsatile group experienced a shorted stay in hospital (MD = -0.68, 95%CI = -0.97∼-0.39, p < 0.01) and a lower risk for acute kidney injury (AKI) compared with non-pulsatile group (RR = 0.46, 95%CI 0.35-0.60, p < 0.01). There was no significant difference of the postoperative cognitive dysfunction (POCD) between the two groups no matter the roller pump or the intra-aortic balloon pump was used (RR = 0.98, 95%CI = 0.87-1.11, p = 0.78). Conclusions: The use of pulsatile flow during CPB in heart surgery has a protective effect on patient recovery. It can reduce the incidence of AKI, shorten the ICU and hospital stays, but its positive effect on postoperative mortality and POCD is not yet apparent.

Indexed as

Cardiac surgeryCardiopulmonary bypassMortalityPulsatile flowRecovery

Identifiers

PMID39866502
PMCPMC11758213

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.