Evidence map›Paper›PMID 33532930›Full record

ArticleSurgical endoscopy2022

Natural orifice versus conventional mini-laparotomy for specimen extraction after reduced-port laparoscopic surgery for colorectal cancer: propensity score-matched comparative study.

Sheng-Chi Chang, Tsung-Han Lee, Yi-Chang Chen, Mei-Tsz Chen, Hung-Chang Chen, Tao-Wei Ke, Yuan-Yao Tsai, Abe Fingerhut, William Tzu-Liang Chen

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Article in Surgical endoscopy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.9field-weighted citation impact, top 9% 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.

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, 18 citations in OpenAlex.

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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

9 authors at 4 institutions in 3 countries.

Sheng-Chi ChangDivision of Colorectal Surgery, Department of Surgery, China Medical University Hospital, China Medical University, No. 2, Yu-Der Rd, Taichung, 404, Taiwan.
Tsung-Han LeeDepartment of Life Sciences, National Chung Hsing University, No.145, Rd. Xingda, Taichung, Taiwan. Nosechang100@gmail.com.
Yi-Chang ChenDivision of Colorectal Surgery, Department of Surgery, China Medical University Hospital, China Medical University, No. 2, Yu-Der Rd, Taichung, 404, Taiwan.
Mei-Tsz ChenSection of Cancer Registry and Screening, Cancer Center, China Medical University Hospital, Taichung, Taiwan.
Hung-Chang ChenDivision of Colorectal Surgery, Department of Surgery, China Medical University Hospital, China Medical University, No. 2, Yu-Der Rd, Taichung, 404, Taiwan.
Tao-Wei KeDivision of Colorectal Surgery, Department of Surgery, China Medical University Hospital, China Medical University, No. 2, Yu-Der Rd, Taichung, 404, Taiwan.
Yuan-Yao TsaiDivision of Colorectal Surgery, Department of Surgery, China Medical University Hospital, China Medical University, No. 2, Yu-Der Rd, Taichung, 404, Taiwan.
Abe FingerhutSection for Surgical Research, Department of Surgery, Medical University of Graz, Graz, Austria.
William Tzu-Liang ChenDivision of Colorectal Surgery, Department of Surgery, China Medical University Hospital, China Medical University, No. 2, Yu-Der Rd, Taichung, 404, Taiwan. golfoma22@gmail.com.
China Medical University · TWChina Medical University Hospital · TWNational Chung Hsing University · TWShanghai Jiao Tong University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough reduced port laparoscopic surgery (RPLS), defined as laparoscopic surgery performed with the minimum possible number of ports and/or small-sized ports, is less invasive than conventional laparoscopic surgery by reducing the number of surgical wounds, an extension of the incision is still needed for specimen extraction, which can undermine the merits of RPLS.

objectiveTo determine the impact of natural orifice specimen extraction (NOSE) in patients undergoing RPLS for colorectal cancer. The endpoints were perioperative outcome and oncologic safety at 3 years.

settingSingle-center experience (2013-2019). PATIENTS: We retrospectively analyzed our prospectively collected patient records (American Joint Committee on Cancer (AJCC) stage I-III sigmoid or upper rectal cancer (tumor diameter ≤ 5 cm) who underwent curative anterior resection via RPLS. We excluded patients who did not undergo intestinal anastomosis.

interventionsPerioperative and oncologic outcomes were compared between patients undergoing natural orifice (RPLS-NOSE) or conventional (mini-laparotomy) specimen extraction (RPLS-CSE). Patients were matched by propensity scores 1:1 for tumor diameter, AJCC stage, American Society of Anesthesiologists score and tumor location.

resultsOf 119 eligible patients, 104 were matched (52 RPLS-NOSE; 52 RPLS-CSE) by propensity scores. Compared with RPLS-CSE, RPLS-NOSE was associated with longer operative time (223.9 vs. 188.7 min; p = 0.003), decreased use of analgesics (morphine dose 33.9 vs. 43.4 mg; p = 0.011) and duration of hospital stay (4.2 vs. 5.1 days; p = 0.001). No statistically significant difference was found in morbidity or wound-related complication rates between the two groups. After a median follow-up of 34.3 months, no local recurrence was observed in RPLS-NOSE. The 3-year disease-free survival did not differ statistically significantly between groups (90.9 vs. 90.5%; p = 0.610).

conclusionNOSE enhances the advantages of RPLS by avoiding the need for abdominal wall specimen extraction in patients with tumor diameter ≤ 5 cm. Surgical and oncologic safety are comparable to RPLS with CSE.

Indexed as

LaparoscopyNatural Orifice Endoscopic SurgeryRectal NeoplasmsHumansLaparotomyPropensity ScoreRetrospective StudiesTreatment OutcomeColorectal cancerNatural orifice specimen extractionOncologic survivalPerioperative outcomeReduced-port laparoscopic surgerySurgical safety

Identifiers

PMID33532930
OpenAlexW3127772936

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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.