Evidence map›Paper›PMID 20835716›Full record

Trial reportSurgical endoscopy2011

Effects of intraoperative breaks on mental and somatic operator fatigue: a randomized clinical trial.

Carsten Engelmann, Mischa Schneider, Clemens Kirschbaum, Gudela Grote, Jens Dingemann, Stefan Schoof, Benno M Ure

2 registry-linked trialsAbstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Surgical endoscopy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 55 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 4 pooled it
2.1field-weighted citation impact, top 12% 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.

NCT01612754 nacompletednot on this map

Noise Reduction Programme by Work Rules and Technical Devices (i.e.SoundEar-TM)for Surgical Theathres

TypeinterventionalSponsorHannover Medical SchoolRan2010 to 2012Enrolled16ConditionsEfficacy of a Noise Reduction Program, Surgical Complications, Sound Pressures in the Operating TheatreArmsNoise reduction work place rules, Presence of an examiner in the concerned theatre
NCT05321654 nacompletednot on this mapstarted 2021, after this paper: background citation

The Effects of Postural Education or Corrective Exercise Intervention on the Craniovertebral Angle in Young Adults With Forward Head Posture: A Randomized Controlled Trial

TypeinterventionalSponsorLiberty UniversityRan2021 to 2021Enrolled79ConditionsPostural, DefectArmsEducation for Behavior Modification, Corrective Exercise Program
3 · Its place in the literature

Who cites it

55 citing papers in PubMed, 4 syntheses or guidelines pooled it, 144 citations in OpenAlex.

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  10. Decreased heart rate variability in surgeons during night shifts.Canadian journal of surgery. Journal canadien de chirurgie · 2014
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  18. Maximizing Surgical Success by Aligning Interventions to Outcomes: A Systematic Review.Annals of surgery open : perspectives of surgical history, education, and clinical approaches · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Carsten EngelmannDepartment of Pediatric Surgery, Hannover Medical School, 30625 Hannover, Germany. ceng@bdc.de
Mischa Schneider
Clemens Kirschbaum
Gudela Grote
Jens Dingemann
Stefan Schoof
Benno M Ure
Medizinische Hochschule Hannover · DEETH Zurich · CHTU Dresden · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIntermittent work breaks are common in fields with high workload but not yet for surgeons during operations. We evaluated the effects of intraoperative breaks during complex laparoscopic surgery (5 min every half hour) on the surgeon.

methodsFifty-one operations were randomized to a scheme with intraoperative breaks and release of the pneumoperitoneum (intermittent pneumoperitoneum (IPP)) or conventional conduct (CPP). Stress hormones and α-amylase were determined in the surgeon's saliva pre-, intra-, and postoperatively. Mental performance and error scores, musculoskeletal strain, and continuous ECG were secondary endpoints.

resultsRegular intraoperative breaks did not prolong the operation (IPP vs. CPP group: 176 vs. 180 min, p > 0.05). The surgeon's cortisol levels during the operation were reduced by 22 ± 10.3% in the IPP vs. the CPP group (p < 0.05). There were significantly fewer (p < 0.05) intraoperative events in the IPP vs. the CPP group, which yielded higher α-amylase peaks. The pre- to postoperative increase in the error rates of the bp-concentration test was fourfold reduced in the IPP group (p = 0.052). The relevant locomotive strain-scores were grossly reduced by IPP (p < 0.001).

conclusionsOur data support the idea that work breaks during complex laparoscopic surgery can reduce psychological stress and preserve performance without prolongation of the operation time compared with the traditional work scheme.

Indexed as

Intraoperative PeriodLaparoscopyAdultalpha-AmylasesAsthenopiaAttentionChildChild, PreschoolDehydroepiandrosteroneElectrocardiographyFatigueFemaleHumansHydrocortisoneInfantIntraoperative Complicationsalpha-AmylasesDehydroepiandrosteroneHydrocortisoneTestosterone

Identifiers

PMID20835716
OpenAlexW2004046834

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.