# CathPal — Hemodynamic Calculator

> Hemodynamic calculator for cardiac catheterization, built by cardiologists for healthcare professionals. (iPhone/iPad app by Analysta LLC.)

- Source: https://appshunter.io/ios/app/cathpal/id6761793182 (this page in markdown: same URL + `.md`)
- Developer: [Analysta LLC](https://appshunter.io/developer/1845791741)
- Category: Medical, Education
- Price: $4.99
- Rating: 5.00/5 from 2 App Store ratings
- Age rating: 17+
- Requires: iOS 18.0 · 3 MB
- Languages: American English
- Released: 2026-04-15
- Data updated: 2026-09-04
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/cathpal/id6761793182/reviews.md

## What is CathPal?

CathPal is a comprehensive hemodynamic calculator for cardiac catheterization. Built by a cardiologist, for cardiologists.

IMPORTANT — MEDICAL DISCLAIMER
CathPal is an educational and decision-support tool intended for use by licensed healthcare professionals trained in cardiac hemodynamics. It is not a medical device. It does not diagnose disease, prescribe treatment, or replace clinical judgment. All calculated values must be interpreted in the context of the individual patient by a qualified physician. No clinical decision should be made based on the output of this app alone. If you are not a healthcare professional, do not use this app to make decisions about your own health or the health of another person. Always consult a qualified physician in addition to using this app and before making any medical decision. Never disregard professional medical advice or delay seeking it because of information obtained from this app. In an emergency, call your local emergency number immediately.

All formulas, reference ranges, and thresholds in CathPal are drawn from peer-reviewed literature and professional society guidelines. Full citations — including the 2022 ESC/ERS Pulmonary Hypertension Guidelines, the 2020 ACC/AHA Valvular Heart Disease Guideline, and the original Gorlin, Hakki, LaFarge, Flamm, PAPi (Korabathina), CPO (Fincke), ARI (Sinning), and SCAI cardiogenic shock publications — are listed inside the app under "Disclaimer & References" and alongside each formula in the Equations view.

Enter your catheterization data and instantly compute Fick and thermodilution cardiac output, pulmonary and systemic vascular resistance, RV performance indices, Gorlin and Hakki valve areas, and complete shunt quantification — all with an EMR-ready evaluation report you can copy and paste directly into the chart.

HEMODYNAMIC CALCULATIONS
• Fick cardiac output with LaFarge VO₂ estimation
• Thermodilution CO with multi-run averaging
• PVR, SVR, PVRI, SVRI (Wood units and dyn·s·cm⁻⁵)
• PAPi, RVSWI, CPO, CPI — shock and RV performance indices
• Pulmonary hypertension classification (2022 ESC/ERS criteria)
• Cardiac index, stroke volume, stroke volume index

VALVE AREAS
• Gorlin equation for aortic (AVA) and mitral (MVA) valve areas
• Hakki simplified formula (CO/√gradient)
• AFib mode with per-beat averaging (up to 10 beats)
• Automatic SEP and DFP calculation from ejection/filling times

SHUNT QUANTIFICATION
• Full oximetry run with step-up detection and localization
• Qp/Qs ratio with absolute flow calculations
• Shunt-adjusted PVR and SVR
• Eisenmenger physiology warning

SMART FEATURES
• Auto-tab between pressure fields for rapid data entry
• Quality checks flag impossible values and common entry errors
• Algorithmic interpretation based on published guidelines
• EMR-ready evaluation report with plain text (EHR) toggle
• Dark mode support

WORKS OFFLINE
No account required. No internet needed. No subscription. One-time purchase, works forever.

## Key features

- Hemodynamic calculations
- Valve area computation
- Shunt quantification
- EMR-ready evaluation report
- Offline functionality
- Quality checks for data entry
- Dark mode support


## Frequently asked questions about CathPal

### Is CathPal suitable for non-healthcare professionals?

No, CathPal is strictly intended for licensed healthcare professionals trained in cardiac hemodynamics. It is an educational and decision-support tool and should not be used by individuals to make decisions about their own health or the health of others.

### What medical guidelines and literature are used in CathPal?

CathPal draws its formulas, reference ranges, and thresholds from peer-reviewed literature and professional society guidelines, including the 2022 ESC/ERS Pulmonary Hypertension Guidelines and the 2020 ACC/AHA Valvular Heart Disease Guideline. Full citations are available within the app.

### Can CathPal be used without an internet connection?

Yes, CathPal works offline. No account is required, and no internet connection is needed to use its features, making it accessible in various clinical settings.

### What types of hemodynamic calculations does CathPal perform?

CathPal computes Fick and thermodilution cardiac output, pulmonary and systemic vascular resistance, RV performance indices like PAPi and RVSWI, Gorlin and Hakki valve areas, and complete shunt quantification with Qp/Qs ratio.

### How does CathPal handle data entry and potential errors?

The app features auto-tabbing between pressure fields for rapid data entry and includes quality checks that flag impossible values and common entry errors to ensure accuracy.

### Does CathPal offer an EMR-ready report?

Yes, CathPal generates an EMR-ready evaluation report that can be copied and pasted directly into patient charts. It includes a plain text (EHR) toggle for easy integration.

### What is the age rating for CathPal?

CathPal has an age rating of 17+, reflecting its use by medical professionals for complex calculations and its medical subject matter.

### How often is CathPal updated?

The latest version of CathPal is 1.0.2, which was last updated on April 16, 2026. Updates typically occur to incorporate new guidelines or improve functionality.

## Version history (last 3 releases)

### 1.0.2 — 2026-04-16

Reliability improvements and bug fixes.

### 1.0.1 — 2026-04-15

Reliability improvements and bug fixes.

### 1.0 — 2026-04-15

No release notes.

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All apps by Analysta LLC: https://appshunter.io/developer/1845791741

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-04.*
