Cath Calculator

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About this app

Cath Calculator is a high-performance clinical and educational tool designed to simplify complex hemodynamic assessments during cardiac catheterization. It serves as a reliable digital companion for cardiologists, fellows, residents, and medical students, transforming raw procedural data into actionable insights in seconds.

Comprehensive Calculation Suite
The app provides a robust set of calculators covering the essential pillars of invasive hemodynamics:
Cardiac Output & Index: Calculate output using the Fick Principle (oxygen consumption) or Thermodilution methods.
Valve Area (Stenosis): Accurately estimate Aortic and Mitral valve areas using the gold-standard Gorlin Equation.
Shunt Fractions (Qp:Qs): Quickly identify and quantify intracardiac shunts for ASD, VSD, and PDA assessments.
Vascular Resistance: Instant calculations for Systemic Vascular Resistance (SVR) and Pulmonary Vascular Resistance (PVR) to guide treatment for heart failure and pulmonary hypertension.
Pressure Gradients: Evaluate mean and peak-to-peak gradients across heart valves.
Why Choose Cath Calculator?
Privacy-First Architecture: We do not collect, store, or share any patient or user data. Your calculations stay on your device.
Offline Functionality: Designed to work in catheterization labs and hospitals with limited connectivity.
Educational Accuracy: Formulas are derived from standard cardiovascular textbooks, making it a perfect study aid for board exams.
User-Centric Interface: A clean, "zero-clutter" design allows for rapid data entry during time-sensitive procedures.

Educational Disclaimer
Cath Calculator is intended for educational and informational purposes only. It is not a medical device and should not be used as the sole basis for patient diagnosis or treatment. Results should always be verified against institutional protocols and clinical judgment.

Developed by: Dr. Talal Arshad
Support: Dr.talalarshad@gmail.com
Updated on
19 Dec 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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What's new

A Cardiac Catheterization (Cath) Calculator is an essential clinical tool used by cardiologists, fellows, and students to translate raw data from a heart procedure into meaningful hemodynamic assessments.

During a "cath," sensors measure pressures and oxygen levels within the heart chambers. The calculator then uses specific formulas to determine how well the heart is pumping and whether valves or vessels are obstructed.