USPhL v5.1.0 — Leuven Consensus Classifier

⚠ Educational & Research Use Only

USPhL is provided for educational and research purposes only. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease.

Before continuing, please understand:

Outputs are an algorithmic interpretation of the Leuven Consensus criteria, applied to the data you provide. They do not replace clinical judgment, multidisciplinary review, or complementary instrumental assessment (VFSS / FEES).
The reference normal values are based on Swallow Gateway templates (Laborie, March 2020; Medtronic, July 2021). These values were derived using Standardized Bolus Media (SBMkit™ bolus; rheological properties published at: swallowgateway.com/products/).
Patients without dysfunction by these criteria cannot be assumed to have "normal" swallowing. Esophageal-phase abnormalities and other clinical findings must also be considered.
This tool does not provide guidance on therapeutic or surgical intervention decisions.
USPhL only reads Swallow Gateway Export files. All processing occurs locally in your browser; the files read do not contain Protected Health Information.

Reference: Omari TI et al. Defining Pharyngeal and Upper Esophageal Sphincter Disorders on High-Resolution Manometry-Impedance: The Leuven Consensus. Neurogastroenterol Motil. 2026;38:e70042.

I acknowledge that USPhL is for educational and research purposes only, and that its output does not constitute a clinical diagnosis or replace the judgment of a qualified clinician.

Upload Swallow Gateway Export

Select your manometry system and upload the CSV export from Swallow Gateway. Reference normal values are built into the app.

Manometry System

Patient Export (CSV)

Or open a saved study (.usphl.json)

Re-open a previously saved study to review or change it without re-uploading the CSV. Inputs are recomputed with the current engine; your note and amendments are restored.

Study Summary

System—

Total Swallows—

Conditions—

Accept or Amend the classification below to enable saving as PDF

Module 1 · Swallow Challenge Protocol Check

Metric Summary by Condition

Median values per bolus condition compared against reference ranges. Click a group to expand. Asterisk (*) indicates reference values were interpolated from adjacent IDDSI levels.

Module 2 · UES Dysfunction

Module 3 · Pharyngeal Contractile Dysfunction

Module 4 · Final Leuven Classification

Accept or Amend the classification to enable saving as PDF