Evidence map›Paper›PMID 31025093›Full record

SynthesisInternational journal of colorectal disease2019

Is a drain necessary after anterior resection of the rectum? A systematic review and meta-analysis.

Davide Cavaliere, Georgi Popivanov, Diletta Cassini, Roberto Cirocchi, Brandon M Henry, Nereo Vettoretto, Giorgio Ercolani, Leonardo Solaini, Chiara Gerardi, Mihail Tabakov and 1 more

Registry-linked trialAbstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in International journal of colorectal disease, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT04799379 (Evaluation of Microporous Polysaccharide Hemospheres), which is not on this map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 17% 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.

NCT04799379 completednot on this mapstarted 2021, after this paper: background citation

Evaluation of Microporous Polysaccharide Hemospheres (MPH) Agent in Preventing Postoperative Complications After Rectal Surgery (EPHAS Study).

Typeobservational_patient_registrySponsorGrupo Español de Rehabilitación MultimodalRan2021 to 2024Enrolled130ConditionsPostoperative SepsisArmsmicroporous polysaccharide hemospheres (MPH) agent in rectal surgery
3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. The impact of drains on surgical outcomes in thyroid surgery-a meta-analysis of randomised controlled trials.European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery · 2026
    Pooled it
  2. Article
  3. EARLY REFEEDING AFTER COLORECTAL CANCER SURGERY REDUCES COMPLICATIONS AND LENGTH OF HOSPITAL STAY.Arquivos brasileiros de cirurgia digestiva : ABCD = Brazilian archives of digestive surgery · 2025
    Article
  4. Article
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  6. Article
  7. Review
  8. Article
  9. Observational
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  11. Revisiting the Value of Drains After Low Anterior Resection for Rectal Cancer: a Multi-institutional Analysis of 996 Patients.Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract · 2021
    Article
  12. Article
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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

11 authors at 7 institutions in 3 countries.

Davide CavaliereGeneral and Oncologic Surgery, Morgagni-Pierantoni Hospital, Forlì, Italy.
Georgi PopivanovMilitary Medical Academy, ul. "Sveti Georgi Sofiyski" 3, Sofia Center, 1606, Sofia, Bulgaria.
Diletta CassiniDepartment of Minimally-Invasive and General Surgery, Policlinico Abano Terme, Piazza Cristoforo Colombo, 1, 35031, Abano Terme, Padova, Italy.
Roberto CirocchiDepartment of Surgical Science, University of Perugia, Perugia, Italy. roberto.cirocchi@unipg.it.ORCID http://orcid.org/0000-0002-2457-0636
Brandon M HenryInternational Evidence-Based Anatomy Working Group, 12 Kopernika St, 31-034, Krakow, Poland.
Nereo VettorettoLaparoscopic Surgery Unit, Department of Surgery, M Mellini Hospital, Viale Mazzini, 4, 25032, Chiari, Brescia, Italy.
Giorgio ErcolaniGeneral and Oncologic Surgery, Morgagni-Pierantoni Hospital, Forlì, Italy.
Leonardo SolainiGeneral and Oncologic Surgery, Morgagni-Pierantoni Hospital, Forlì, Italy.
Chiara GerardiIRCCS - Istituto di Ricerche Farmacologiche "Mario Negri", Via Giuseppe La Masa, 19, 20156, Milan, Italy.
Mihail TabakovClinic of Surgery, University Hospital for Active Treatment, "St. Ivan Rilski", Sofia, Bulgaria.
Krzysztof Andrzej TomaszewskiInternational Evidence-Based Anatomy Working Group, 12 Kopernika St, 31-034, Krakow, Poland.
Ospedale G.B. Morgagni - L.Pierantoni · ITAndrzej Frycz Modrzewski Krakow University · PLMario Negri Institute for Pharmacological Research · ITMilitary Medical Academy · BGPoliclinico Abano Terme · ITUniversity Hospital St. Ivan Rilski · BGUniversity of Perugia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe anastomotic leak rate in colorectal surgery is highest in patients receiving anterior rectal resections. The placement of prophylactic pelvic drains remains a routine option for preventing postoperative leaks, despite increasing evidence suggesting no clinical benefit. The present study seeks to identify a consensus on the use of prophylactic drains in anterior rectal resections.

methodsA systematic search was conducted of MEDLINE, Scopus, EMBASE, and Cochrane Library databases to identify clinical trials comparing the use of drainage to non-drainage in cases of colorectal anastomosis.

resultsThree randomized clinical trials (RCTs) and two controlled clinical trials (CCTs) were identified that met the inclusion criteria, with a total of 1702 patients with rectal cancer who underwent anterior resection: 1206 with a pelvic drain and 496 without a pelvic drain. Meta-analysis showed that the use of a drain did not significantly improve the outcomes of anastomotic leaks; the overall reoperation rate during the 30-day postoperative period and the postoperative mortality were statistically lower in the drained group (OR 2.82, 95% CI 1.33 to 5.97; I

conclusionsThe use of prophylactic pelvic drainage after anterior rectal resections does not provide significant benefits with respect to anastomotic leaks and overall complication rates. However, an approximately threefold reduction of the postoperative mortality of the drained patients was observed. Given the limitations of the present study, these findings warrant the use of a drain after anterior rectal resection. Nevertheless, due to the low quality of the available data, further multicenter trials with uniform inclusion criteria are needed to evaluate drain usage in the anterior rectal resection.

Indexed as

Digestive System Surgical ProceduresDrainageAnastomosis, SurgicalAnastomotic LeakHumansIncidencePostoperative ComplicationsPublication BiasRectumReoperationAnterior rectal resectionDrainRectal cancer

Identifiers

PMID31025093
OpenAlexW2940873906

What OpenQuestion holds

Textmetadata
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Registered trials

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.