Evidence map›Paper›PMID 34782961›Full record

Trial reportSurgical endoscopy2022

Does caffeine consumption affect laparoscopic skills in a motion tracking analysis? A prospective, randomized, blinded crossover trial.

Felix von Bechtolsheim, Florian Oehme, Michael Maruschke, Sofia Schmidt, Alfred Schneider, Jürgen Weitz, Marius Distler, Sebastian Bodenstedt, Isabel Funke, Stefanie Speidel and 1 more

Abstract readRandomized Controlled Trial
PubMed Full text at PMC Publisher
In one paragraph

Trial report in Surgical endoscopy, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

  1. Trial
  2. Trial
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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.

Felix von BechtolsheimDepartment for Visceral, Thoracic and Vascular Surgery at the University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.ORCID http://orcid.org/0000-0003-2180-7981
Florian OehmeDepartment for Visceral, Thoracic and Vascular Surgery at the University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany. florian.Oehme@uniklinikum-dresden.de.
Michael MaruschkeDepartment for Visceral, Thoracic and Vascular Surgery at the University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Sofia SchmidtDepartment for Visceral, Thoracic and Vascular Surgery at the University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Alfred SchneiderDepartment for Visceral, Thoracic and Vascular Surgery at the University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Jürgen WeitzDepartment for Visceral, Thoracic and Vascular Surgery at the University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Marius DistlerDepartment for Visceral, Thoracic and Vascular Surgery at the University Hospital Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany.
Sebastian BodenstedtCentre for Tactile Internet with Human-in-the-Loop, Technische Universität Dresden, Dresden, Germany.
Isabel FunkeCentre for Tactile Internet with Human-in-the-Loop, Technische Universität Dresden, Dresden, Germany.
Stefanie SpeidelCentre for Tactile Internet with Human-in-the-Loop, Technische Universität Dresden, Dresden, Germany.
Soeren Torge MeesDepartment of General, Visceral and Thoracic Surgery, Städtisches Klinikum, Friedrichstraße 41, 01067, Dresden, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCoffee can increase vigilance and performance, especially during sleep deprivation. The hypothetical downside of caffeine in the surgical field is the potential interaction with the ergonomics of movement and the central nervous system. The objective of this trial was to investigate the influence of caffeine on laparoscopic performance.

methodsFifty laparoscopic novices participated in this prospective randomized, blinded crossover trial and were trained in a modified FLS curriculum until reaching a predefined proficiency. Subsequently, all participants performed four laparoscopic tasks twice, once after consumption of a placebo and once after a caffeinated (200 mg) beverage. Comparative analysis was performed between the cohorts. Primary endpoint analysis included task time, task errors, OSATS score and a performance analysis with an instrument motion analysis (IMA) system.

resultsFifty participants completed the study. Sixty-eight percent of participants drank coffee daily. The time to completion for each task was comparable between the caffeine and placebo cohorts for PEG transfer (119 s vs 121 s; p = 0.73), precise cutting (157 s vs 163 s; p = 0.74), gallbladder resection (190 s vs 173 s; p = 0.6) and surgical knot (171 s vs 189 s; p = 0.68). The instrument motion analysis showed no significant differences between the caffeine and placebo groups in any parameters: instrument volume, path length, idle, velocity, acceleration, and instrument out of view. Additionally, OSATS scores did not differ between groups, regardless of task. Major errors occurred similarly in both groups, except for one error criteria during the circle cutting task, which occurred significantly more often in the caffeine group (34% vs. 16%, p < 0.05).

conclusionThe objective IMA and performance scores of laparoscopic skills revealed that caffeine consumption does not enhance or impair the overall laparoscopic performance of surgical novices. The occurrence of major errors is not conclusive but could be negatively influenced in part by caffeine intake.

Indexed as

CaffeineLaparoscopyClinical CompetenceCoffeeCross-Over StudiesHumansProspective StudiesCaffeineCoffeeCaffeineCoffeeLaparoscopic motion analysisLaparoscopic skill analysisProficiency-based learning

Identifiers

PMID34782961
PMCPMC9085661

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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.