Evidence map›Paper›PMID 30390183›Full record

ArticleJournal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract2019

Colon Myoelectric Activity Measured After Open Abdominal Surgery with a Noninvasive Wireless Patch System Predicts Time to First Flatus.

Anand Navalgund, Steve Axelrod, Lindsay Axelrod, Shyamali Singhal, Khoi Tran, Prithvi Legha, George Triadafilopoulos

2 registry-linked trialsAbstract read
PubMed Publisher
In one paragraph

Article in Journal of gastrointestinal surgery : official journal of the Society for Surgery of the Alimentary Tract, 2019. 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 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 18% 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.

NCT03774485 completednot on this map

Longitudinal Study of Myoelectric GutPrint of Healthy Controls and Crohn's Disease Patients During Flare and Remission

TypeobservationalSponsorStanford UniversityRan2019 to 2023Enrolled136ConditionsCrohn DiseaseArmsG-Tech Gutcheck Myoelectric recording device
NCT04462705 nacompletednot on this mapstarted 2020, after this paper: background citation

Abdominal Massage to Prevent Postoperative Ileus as Part of an Enhanced Recovery Program After Colorectal Surgery

TypeinterventionalSponsorUniversity Hospital, GrenobleRan2020 to 2021Enrolled36ConditionsColorectal SurgeryArmsUsual physiotherapeutic intervention and Abdominal Massage
3 · Its place in the literature

Who cites it

8 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. 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

7 authors at 5 institutions in 1 country.

Anand NavalgundG-Tech Medical, Fogarty Institute for Innovation, 2490 Hospital Drive, Suite 310, Mountain View, CA, 94040, USA. anand.navalgund@gtechhealth.com.ORCID 0000-0002-6408-6064
Steve AxelrodG-Tech Medical, Fogarty Institute for Innovation, 2490 Hospital Drive, Suite 310, Mountain View, CA, 94040, USA.
Lindsay AxelrodG-Tech Medical, Fogarty Institute for Innovation, 2490 Hospital Drive, Suite 310, Mountain View, CA, 94040, USA.
Shyamali SinghalEl Camino Hospital, 2500 Grant Road, Mountain View, CA, 94040, USA.
Khoi TranPalo Alto Medical Foundation, Sutter Health, 701 E El Camino Real, Mountain View, CA, 9404, USA.
Prithvi LeghaPalo Alto Medical Foundation, Sutter Health, 701 E El Camino Real, Mountain View, CA, 9404, USA.
George TriadafilopoulosDepartment of Medicine, Division of Gastroenterology, Stanford University School of Medicine, 300 Pasteur Drive, Stanford, CA, 94305, USA.
Fogarty Institute for Innovation · USSutter Health · USCalifornia Institute of Technology · USEl Camino Hospital · USStanford University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPassage of flatus after abdominal surgery signals resolution of physiological postoperative ileus (POI) and often, particularly after complex open surgeries, serves as the trigger to initiate oral feeding. To date, there is no objective tool that can predict time to flatus allowing for timely feeding and optimizing recovery. In an open, prospective study, we examine the use of a noninvasive wireless patch system that measures electrical activity from gastrointestinal smooth muscles in predicting time to first flatus.

methodsEighteen patients who underwent open abdominal surgery at El Camino Hospital, Mountain View, CA, were consented and studied. Immediately following surgery, wireless patches were placed on the patients' anterior abdomen. Colonic frequency peaks in the spectra were identified in select time intervals and the area under the curve of each peak times its duration was summed to calculate cumulative myoelectrical activity.

resultsPatients with early flatus had stronger early colonic activity than patients with late flatus. At 36 h post-surgery, a linear fit of time to flatus vs cumulative colonic myoelectrical activity predicted first flatus as much as 5 days (± 22 h) before occurrence.

conclusionsIn this open, prospective pilot study, noninvasive measurement of colon activity after open abdominal surgery was feasible and predictive of time to first flatus. Interventions such as feeding can potentially be optimized based on this prediction, potentially improving outcomes, decreasing length of stay, and lowering costs.

Indexed as

Wireless TechnologyAbdomenAdultAgedAged, 80 and overColonFemaleFlatulenceHumansIleusMaleMiddle AgedMuscle, SmoothPilot ProjectsPostoperative ComplicationsPredictive Value of TestsColon myoelectrical activityFirst flatusIleusNoninvasive wireless patchOpen abdominal surgeryPostoperative recovery

Identifiers

PMID30390183
OpenAlexW2898802630

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.