Evidence map›Paper›PMID 40629011›Full record

ArticleSurgical endoscopy2025

Minimally invasive converted to open versus upfront open surgeries for rectal cancer: a retrospective cohort study.

Rachel Ma, George Wu, Sriya Chilla, Paola Solis-Pazmino, Moshe Barnajian, Yosef Nasseri

Abstract readComparative Study
In one paragraph

Article in Surgical endoscopy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–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. Review
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

6 authors.

Rachel MaSurgery Group Los Angeles, Los Angeles, CA, USA.
George WuSurgery Group Los Angeles, Los Angeles, CA, USA.
Sriya ChillaSurgery Group Los Angeles, Los Angeles, CA, USA.
Paola Solis-PazminoSurgery Group Los Angeles, Los Angeles, CA, USA.
Moshe BarnajianSurgery Group Los Angeles, Los Angeles, CA, USA.
Yosef NasseriSurgery Group Los Angeles, Los Angeles, CA, USA. yosefnasseri@gmail.com.ORCID http://orcid.org/0000-0002-9186-5717

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMinimally invasive surgery (MIS) has significantly better short-term outcomes than open surgery. However, it is unclear whether MIS converted (MISC) to open for rectal cancer carries any benefits compared to open as no prior study has compared these two surgical approaches for rectal cancer. This study compares short-term postoperative outcomes between MISC and upfront open surgery.

methodsThis is a retrospective cohort study on elective surgeries for rectal cancer from 2016 and 2022 from the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database. Patients were divided into the MISC group and the Open group and balanced using propensity-score matching. 30-day complication, unplanned readmission, and mortality rates and length of stays were compared with Student's t-test and regression models.

resultsThe Open group included 2551 (86.3%) patients, and the MISC group included 406 (13.7%) patients (80.5% laparoscopy, 19.5% robotic). Propensity-score matching yielded 400 patients in each group. On univariate analysis, the groups had comparable overall complications, unplanned readmission, and 30-day mortality rates, but the MISC group had a lower median length of stay (6 days vs. 7 days, p = 0.015). On regression analysis, the MISC was not associated with an increased risk for overall complications (OR = 1.04, 95%CI 0.843-1.280; p = 0.716), unplanned readmission (OR = 1.230, 95%CI 0.939-1.620; p = 0.132), and 30-day mortality (OR = 1.750 95%CI 0.648-4750; p = 0.269). However, MISC was significantly associated with a shorter length of stay (OR = - 0.869, 95%CI (-)1.609 - (-)0.129; p = 0.021).

conclusionPatients undergoing planned open proctectomy and those undergoing MISC to open proctectomy exhibit similar 30-day postoperative outcomes. As completed MIS offers advantages over open surgeries, MIS should be attempted as the default surgical approach for rectal cancer patients, even if conversion to open surgery is needed.

Indexed as

Conversion to Open SurgeryLaparoscopyProctectomyRectal NeoplasmsRobotic Surgical ProceduresAgedElective Surgical ProceduresFemaleHumansLength of StayMaleMiddle AgedPatient ReadmissionPostoperative ComplicationsPropensity ScoreRetrospective StudiesAmerican College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP)ProctectomyPropensity scoreRectal neoplasmsRetrospective studySurgical conversion

Identifiers

PMID40629011
PMCPMC12287241

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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.