# Congenital Calculator — Hemodynamic Calculator.

> Cardiac hemodynamic calculator for pediatric cardiologists and CHD specialists. (iPhone/iPad app by Subhrajit Lahiri.)

- Source: https://appshunter.io/ios/app/congenital-calculator/id6770282687 (this page in markdown: same URL + `.md`)
- Developer: [Subhrajit Lahiri](https://appshunter.io/developer/1896730286)
- Category: Medical, Education
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 17+
- Requires: iOS 15.1 · 27 MB
- Languages: American English
- Released: 2026-06-10
- Data updated: 2026-07-22
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/congenital-calculator/id6770282687/reviews.md

## What is Congenital Calculator?

Congenital Calculator is a professional cardiac hemodynamic calculator designed for pediatric cardiologists and congenital heart disease specialists. Built on the Fick principle, it calculates pulmonary and systemic blood flow, vascular resistance, and shunt fractions during cardiac catheterization procedures.
Key features:
• Qp, Qs, QeP and Qp:Qs ratio — all indexed to body surface area
• PVR, PVRi, SVR, SVRi — pulmonary and systemic vascular resistance
• Mixed venous saturation using SVC and IVC
• LaFarge & Miettinen VO₂ estimation with log₁₀ and −20% variant
• 8-point saturation step-up warning for shunt detection
• Full PDF report generation with patient data and results
• O₂ content calculation including dissolved oxygen (pO₂ × 0.003)
For use by qualified healthcare professionals only. This app is a clinical decision support tool and does not constitute medical advice, diagnosis, or treatment. All results must be interpreted and verified by a licensed physician. This app has not been evaluated by the FDA or any regulatory body. Always consult current clinical guidelines and institutional protocols.
Developed by Subhrajit Lahiri, MD and Omar Abu Anza, MD.

## Key features

- Pulmonary and systemic blood flow calculation
- Vascular resistance calculation
- Shunt fraction calculation
- Mixed venous saturation
- VO₂ estimation
- Shunt detection warning
- PDF report generation


## Frequently asked questions about Congenital Calculator

### What is Congenital Calculator used for?

Congenital Calculator is a professional cardiac hemodynamic tool designed for pediatric cardiologists and congenital heart disease specialists. It calculates key hemodynamic parameters like blood flow, vascular resistance, and shunt fractions during cardiac catheterization procedures.

### What are the main calculations performed by Congenital Calculator?

Congenital Calculator computes Qp, Qs, QeP, Qp:Qs ratio, PVR, PVRi, SVR, SVRi, mixed venous saturation, and LaFarge & Miettinen VO₂ estimation. It also includes an 8-point saturation step-up warning for shunt detection.

### Can Congenital Calculator generate reports?

Yes, Congenital Calculator offers full PDF report generation. These reports include all patient data and the calculated results, making it easy to document findings.

### Is Congenital Calculator suitable for general medical professionals?

No, Congenital Calculator is specifically designed for qualified healthcare professionals, particularly pediatric cardiologists and congenital heart disease specialists. It is intended as a clinical decision support tool and not for general medical advice.

### What devices does Congenital Calculator support?

Congenital Calculator is available for iPhone, iPad, and iPod devices, indicating broad compatibility within the Apple ecosystem.

### How often is Congenital Calculator updated?

The app was last updated on June 10, 2026, with version 1.0. Further update frequency is not specified but indicates a recent release.

### What is the age rating for Congenital Calculator?

Congenital Calculator has an age rating of 17+, suggesting it is intended for adult healthcare professionals due to its specialized medical nature.

### Does Congenital Calculator require an internet connection?

The provided data does not specify internet connectivity requirements. However, as a calculation and reporting tool, it may function offline for core calculations.

## Version history (last 1 release)

### 1.0 — 2026-06-10

No release notes.

## Related topics

[congenital calculator](https://appshunter.io/ios/topics/congenital-calculator)

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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 2026-07-22.*