Evidence mapPaperPMID 39903416Full record

SynthesisObesity surgery2025

Port Site Placement and Outcomes for Surgical Obesity and Metabolic Surgeries (PSPOSO) Checklist: A New Reporting Checklist Based on Evidential Assessment of the Number of Trocars and Positions.

Mohamed H Zidan, Hassan El-Masry, Ahmed Amgad, Hashem Altabbaa, Marwan Emad Abdou, Samar A Amer, Nour Zayed, Haidy Osama Ismail, Mohammed Alokl, Ahmed Abokhozima

Abstract readSystematic ReviewMeta-Analysis
In one paragraph

Synthesis in Obesity surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Article
  2. 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

10 authors.

Mohamed H ZidanAlexandria University, Alexandria, Egypt. mohamed.hessien1171@alexmed.edu.eg.ORCID 0000-0001-7425-356X
Hassan El-MasryAlexandria University, Alexandria, Egypt.ORCID 0009-0000-6177-3697
Ahmed AmgadThe Research Papyrus Lab, Alexandria, Egypt.ORCID 0000-0002-7907-1471
Hashem AltabbaaAlexandria University, Alexandria, Egypt.ORCID 0000-0002-8031-838X
Marwan Emad AbdouAlexandria University, Alexandria, Egypt.ORCID 0000-0003-4196-9339
Samar A AmerZagazig University, Zagazig, Egypt.ORCID 0000-0002-9475-6372
Nour ZayedAlexandria University, Alexandria, Egypt.
Haidy Osama IsmailAlexandria University, Alexandria, Egypt.ORCID 0009-0006-0433-5176
Mohammed AloklAlexandria University, Alexandria, Egypt.ORCID 0009-0005-5197-7959
Ahmed AbokhozimaAlexandria University, Alexandria, Egypt. ahmed.abokhozima@alexmed.edu.eg.ORCID 0000-0003-0921-0904

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Since the early 1980s, efforts to standardize ergonomic practices in laparoscopic surgeries have aimed to improve procedural efficiency and reduce complications, but clinical validation remains limited. In metabolic and bariatric surgeries (MBS), innovations in trocar site placements, driven by the popularity of laparoscopic sleeve gastrectomy (LSG), have advanced surgical techniques. However, practices often vary based on individual surgeon preferences rather than standardized evidence-based criteria. This study introduces the Port Site Placement and Outcomes for Surgical Obesity and Metabolic Surgeries (PSPOSO) checklist, aiming to standardize port placements and improve reporting consistency. A systematic review and meta-analysis of LSG studies were conducted following PRISMA guidelines. Data were extracted from 34 studies involving 7173 cases. Key variables included port configurations, manipulation angles, and outcomes such as operative time and excess weight loss percentage (EWL%). Innovative methods were used to estimate manipulation and azimuth angles from available intraoperative images. Statistical analyses and meta-regression were performed to identify associations between port configurations and surgical outcomes. Findings revealed substantial variability in port placements, with no significant effect of manipulation angles or port numbers on operative time or EWL% at 6, 12, and 24 months (p-values > 0.05). High residual heterogeneity suggests that factors beyond manipulation angles and port counts contribute to outcome variability. The PSPOSO checklist provides a framework for standardizing port placement and ergonomic parameters in MBS, enhancing reproducibility and safety. Future studies should validate the checklist across diverse clinical settings to refine surgical approaches and improve patient outcomes. PROSPERO: CRD42024598674.

Indexed as

Bariatric SurgeryChecklistLaparoscopyObesity, MorbidHumansOperative TimeTreatment OutcomeExcess weight lossLaparoscopic sleeve gastrectomyManipulation anglesMetabolic and bariatric surgeriesPort site ergonomicsPSPOSO checklistSurgical outcomesTrocar placement

Identifiers

PMID39903416
PMCPMC11906533

What Socratic holds

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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.