Evidence map›Paper›PMID 40695535›Full record

SynthesisOpen heart2025

Comparative efficacy and safety of no-touch versus conventional vein harvesting techniques in coronary artery bypass grafting: a systematic review and meta-analysis.

Muhammad Abdullah Ali, Umama Alam, Fazia Khattak, Zaryab Bacha, Fatima Sajjad, Asad Iqbal Khattak, Abdullah Afridi, Sufyan Shahid, Maheen Sheraz, Naveed Ahmed Khan and 2 more

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Open heart, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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

12 authors.

Muhammad Abdullah AliKhyber Medical College, Peshawar, N.W.F.P, Pakistan.
Umama AlamKhyber Medical College, Peshawar, N.W.F.P, Pakistan.
Fazia KhattakKhyber Medical College, Peshawar, N.W.F.P, Pakistan.ORCID http://orcid.org/0009-0004-0508-4765
Zaryab BachaDepartment of Medicine, Khyber Medical College, Peshawar, Pakistan.
Fatima SajjadDepartment of Medicine, Khyber Medical College, Peshawar, Pakistan.
Asad Iqbal KhattakBacha Khan Medical College, Mardan, Pakistan.
Abdullah AfridiKhyber Medical College, Peshawar, N.W.F.P, Pakistan.
Sufyan ShahidDepartment of Medicine, Khawaja Muhammad Safdar Medical College, Sialkot, Pakistan.
Maheen SherazDepartment of Medicine, Continental Medical College, Lahore, Pakistan.
Naveed Ahmed KhanDepartment of Medicine, Khyber Medical College, Peshawar, Pakistan.
Alifa SabirDepartment of Cardiac Surgery, Rawalpindi Institute of Cardiology, Rawalpindi, Pakistan.
Raheel AhmedDepartment of Cardiology, Imperial College London, London, UK R.ahmed21@imperial.ac.uk.ORCID http://orcid.org/0000-0003-2814-7314

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis meta-analysis aims to compare the clinical outcomes of the no-touch (NT) and conventional (CON) vein harvesting techniques in patients undergoing coronary artery bypass grafting (CABG).

methodsWe conducted a systematic review and meta-analysis following the guidelines of the Cochrane Handbook and PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analysis) statement. We searched PubMed, Embase and Web of Science for randomised controlled trials (RCTs) comparing NT and CON vein harvesting techniques in CABG patients. Data were extracted on primary outcomes (graft failure incidence per patient, graft occlusion incidence per patient and leg infection) and secondary outcomes (revascularisation, all-cause death, myocardial infarction). Statistical analysis was performed using Review Manager V.5.4, with risk ratios (RRs) calculated for binary outcomes.

resultsSeven RCTs involving 4176 patients were included. The NT group showed a significantly lower risk of graft failure incidence per patient (RR=0.74, p=0.0001) and graft occlusion incidence per patient (RR=0.62, p=0.0002) compared with the CON group. However, the NT group had a higher risk of leg infection (RR=1.91, p<0.00001). No significant differences were observed between groups for revascularisation (p=0.46), all-cause death (p=0.87), or myocardial infarction (p=0.95).

conclusionsThe no-touch vein harvesting technique is associated with reduced graft failure incidence per patient and graft occlusion incidence per patient compared with conventional harvesting techniques in CABG, though it increases the risk of leg infection. These findings suggest NT as a preferable technique for improving graft patency but highlight the need for caution regarding leg infection. PROSPERO REGISTRATION NUMBER: CRD42025646500.

Indexed as

Coronary Artery BypassCoronary Artery DiseaseSaphenous VeinTissue and Organ HarvestingHumansRandomized Controlled Trials as TopicRisk FactorsTreatment OutcomeGeneral SurgeryMeta-AnalysisPeripheral Vascular Diseases

Identifiers

PMID40695535
PMCPMC12281317

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.