# Guyton — Guytonian physiology

> Guytonian physiology (iPhone/iPad app by Pietro Bertini.)

- Source: https://appshunter.io/ios/app/guyton/id6749528826 (this page in markdown: same URL + `.md`)
- Developer: [Pietro Bertini](https://appshunter.io/developer/1769996267)
- Category: Health & Fitness, Education
- Price: Free
- Age rating: 17+
- Requires: iOS 15.1 · 24 MB
- Languages: English
- Released: 2025-08-08
- Data updated: 2026-05-16
- User reviews in markdown: https://appshunter.io/ios/app/guyton/id6749528826/reviews.md

## What is Guyton?

iGuyton is the first hemodynamic calculator inspired by Arthur Guyton's physiology, designed for anesthesiologists, intensivists, and critical care professionals.

By entering patient-specific clinical parameters (CVP, MAP, CO, age, height, weight), iGuyton instantly computes:

PMSA (Mean Systemic Filling Pressure)

PVR (Peripheral Vascular Resistance)

Eh (Venous Return Elastance)

The interface is clean, intuitive, and optimized for use in ICUs, operating rooms, and educational simulation environments.

Key Features:

Instant calculation of key Guytonian parameters

Light and dark modes with soft pastel themes for eye comfort

Panel-based navigation for a smooth, distraction-free user experience

Integrated educational tools to deepen understanding of Guytonian physiology

iGuyton is not just a calculator, but a clinical reasoning companion for managing hemodynamic instability.

References:
- https://pubmed.ncbi.nlm.nih.gov/7920979/
- https://pubmed.ncbi.nlm.nih.gov/30987647/


## Version history (last 1 release)

### 1.1 — 2025-08-08

No release notes.

## More apps by Pietro Bertini

- [iElastance](https://appshunter.io/ios/app/ielastance/id556528864)

All apps by Pietro Bertini: https://appshunter.io/developer/1769996267

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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 2026-05-16.*