Evidence map›Paper›PMID 33516214›Full record

SynthesisCardiovascular diabetology2021

Long-term prognosis of chronic total occlusion treated by successful percutaneous coronary intervention in patients with or without diabetes mellitus: a systematic review and meta-analysis.

Yong Zhu, Shuai Meng, Maolin Chen, Kesen Liu, Ruofei Jia, Hong Li, Huagang Zhu, Zening Jin

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Cardiovascular diabetology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing 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

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

  1. Pooled it
  2. Article
  3. Observational
  4. Article
  5. Review
  6. Article
  7. Article
  8. Observational
  9. Article
  10. 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

8 authors.

Yong ZhuDepartment of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China.
Shuai MengDepartment of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100029, China.
Maolin ChenDepartment of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China.
Kesen LiuDepartment of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China.
Ruofei JiaDepartment of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100029, China.
Hong LiDepartment of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China.
Huagang ZhuDepartment of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing, 100029, China.
Zening JinDepartment of Cardiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100029, China. zening@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiabetes mellitus (DM) is highly prevalent among patients undergoing percutaneous coronary intervention (PCI) for chronic total occlusion (CTO). Therefore, the purpose of our study was to investigate the clinical outcomes of CTO-PCI in patients with or without DM.

methodsAll relevant articles published in electronic databases (PubMed, Embase, and the Cochrane Library) from inception to August 7, 2020 were identified with a comprehensive literature search. Additionally, we defined major adverse cardiac events (MACEs) as the primary endpoint and used risk ratios (RRs) with 95% confidence intervals (CIs) to express the pooled effects in this meta-analysis.

resultsEleven studies consisting of 4238 DM patients and 5609 non-DM patients were included in our meta-analysis. For DM patients, successful CTO-PCI was associated with a significantly lower risk of MACEs (RR = 0.67, 95% CI 0.55-0.82, p = 0.0001), all-cause death (RR = 0.46, 95% CI 0.38-0.56, p < 0.00001), and cardiac death (RR = 0.35, 95% CI 0.26-0.48, p < 0.00001) than CTO-medical treatment (MT) alone; however, this does not apply to non-DM patients. Subsequently, the subgroup analysis also obtained consistent conclusions. In addition, our study also revealed that non-DM patients may suffer less risk from MACEs (RR = 1.26, 95% CI 1.02-1.56, p = 0.03) than DM patients after successful CTO-PCI, especially in the subgroup with a follow-up period of less than 3 years (RR = 1.43, 95% CI 1.22-1.67, p < 0.0001).

conclusionsCompared with CTO-MT alone, successful CTO-PCI was found to be related to a better long-term prognosis in DM patients but not in non-DM patients. However, compared with non-DM patients, the risk of MACEs may be higher in DM patients after successful CTO-PCI in the drug-eluting stent era, especially during a follow-up period shorter than 3 years.

Indexed as

Percutaneous Coronary InterventionAgedAged, 80 and overChronic DiseaseCoronary OcclusionDiabetes MellitusDrug-Eluting StentsFemaleHumansMaleMiddle AgedRisk AssessmentRisk FactorsTime FactorsTreatment OutcomeChronic total occlusionsDiabetes mellitusMajor adverse cardiac eventsMedical treatmentPercutaneous coronary intervention

Identifiers

PMID33516214
PMCPMC7847176

What Socratic holds

Textmetadata
LicenceCC BY
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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 Socratic graph.