Evidence map›Paper›PMID 37770608›Full record

ArticleSurgical endoscopy2024

Impedance planimetry and panometry (EndoFLIP™) can replace manometry in preoperative anti-reflux surgery assessment.

Vanessa N VanDruff, Julia R Amundson, Stephanie Joseph, Simon Che, Kristine Kuchta, Christopher J Zimmermann, Shun Ishii, H Mason Hedberg, Michael B Ujiki

Abstract read
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In one paragraph

Article in Surgical endoscopy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the 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
3.9field-weighted citation impact, top 6% 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

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

  1. Pooled it
  2. Article
  3. Esophageal motility disorders other than achalasia.Abdominal radiology (New York) · 2025
    Review
  4. Endoscopic Sedation Type During FLIP Panometry Does Not Significantly Impact FLIP Motility Classification Relative to Manometry.Clinical gastroenterology and hepatology : the official clinical practice journal of the American Gastroenterological Association · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Review
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 1 institution in 1 country.

Vanessa N VanDruffDepartment of Minimally Invasive Surgery, NorthShore University HealthSystem, 2650 Ridge Avenue, GCSI Suite B665, Evanston, IL, 60201, USA. Vanessa.vandruff@uchicagomedicine.org.ORCID 0000-0002-7610-1372
Julia R AmundsonDepartment of Minimally Invasive Surgery, NorthShore University HealthSystem, 2650 Ridge Avenue, GCSI Suite B665, Evanston, IL, 60201, USA.
Stephanie JosephDepartment of Minimally Invasive Surgery, NorthShore University HealthSystem, 2650 Ridge Avenue, GCSI Suite B665, Evanston, IL, 60201, USA.
Simon CheDepartment of Minimally Invasive Surgery, NorthShore University HealthSystem, 2650 Ridge Avenue, GCSI Suite B665, Evanston, IL, 60201, USA.
Kristine KuchtaDepartment of Minimally Invasive Surgery, NorthShore University HealthSystem, 2650 Ridge Avenue, GCSI Suite B665, Evanston, IL, 60201, USA.
Christopher J ZimmermannDepartment of Minimally Invasive Surgery, NorthShore University HealthSystem, 2650 Ridge Avenue, GCSI Suite B665, Evanston, IL, 60201, USA.
Shun IshiiDepartment of Minimally Invasive Surgery, NorthShore University HealthSystem, 2650 Ridge Avenue, GCSI Suite B665, Evanston, IL, 60201, USA.
H Mason HedbergDepartment of Minimally Invasive Surgery, NorthShore University HealthSystem, 2650 Ridge Avenue, GCSI Suite B665, Evanston, IL, 60201, USA.
Michael B UjikiDepartment of Minimally Invasive Surgery, NorthShore University HealthSystem, 2650 Ridge Avenue, GCSI Suite B665, Evanston, IL, 60201, USA.
NorthShore University HealthSystem · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEndoluminal functional impedance planimetry and panometry assesses secondary peristalsis in response to volumetric distention under sedation. We hypothesize that impedance planimetry and panometry can replace high-resolution manometry in the preoperative assessment prior to anti-reflux surgery.

methodsSingle institution prospective data were collected from patients undergoing anti-reflux surgery between 2021 and 2023. A 16-cm functional luminal imaging probe (FLIP) assessed planimetry and panometry prior to surgery under general anesthesia at the start of each case. Panometry was recorded and esophageal contractile response was classified as normal (NCR), diminished or disordered (DDCR), or absent (ACR) in real time by a single panometry rater, blinded to preoperative HRM results. FLIP results were then compared to preoperative HRM.

resultsData were collected from 120 patients, 70.8% female, with mean age of 63 ± 3 years. There were 105 patients with intraoperative panometry, and 15 with panometry collected during preoperative endoscopy. There were 60 patients (50%) who had peristaltic dysfunction on HRM, of whom 57 had FLIP dysmotility (55 DDCR, 2 ACR) resulting in 95.0% sensitivity. There were 3 patients with normal secondary peristalsis on FLIP with abnormal HRM, all ineffective esophageal motility (IEM). No major motility disorder was missed by FLIP. A negative predictive value of 91.9% was calculated from 34/37 patients with normal FLIP panometry and normal HRM. Patients with normal HRM but abnormal FLIP had larger hernias compared to patients with concordant studies (7.5 ± 2.8 cm vs. 5.4 ± 3.2 cm, p = 0.043) and higher preoperative dysphagia scores (1.5 ± 0.7 vs. 1.1 ± 0.3, p = 0.021).

conclusionImpedance planimetry and panometry can assess motility under general anesthesia or sedation and is highly sensitive to peristaltic dysfunction. Panometry is a novel tool that has potential to streamline and improve patient care and therefore should be considered as an alternative to HRM, especially in patients in which HRM would be inaccessible or poorly tolerated.

Indexed as

Esophageal Motility DisordersEsophagusAgedElectric ImpedanceEndoscopy, GastrointestinalFemaleHumansMaleManometryMiddle AgedProspective StudiesAntirefluxEndoflipManometryPanometry

Identifiers

PMID37770608
OpenAlexW4387126152

What OpenQuestion holds

Textmetadata
Read underepoch 390

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 OpenQuestion graph.