Harvi by PVLoops

Harvi ECMO

Harvi-ECMO is an online training platform that includes two textbooks (Harvi-Student and Physiology of ECMO), an interactive simulation with advanced features related O2 and CO2 metabolism and guided tutorials related to extracorporeal membrane oxygenation (ECMO) and cardiopulmonary bypass (CPB).

The textbook also covers gas exchange (CO2 and O2) in the lungs, Oxygen Delivery, Fick Cardiac output, Control of Ventilation, the 5 causes of hypoxemia (Hypoxic gas mixture, hypoventilation, V/Q mismatch, Shunt, Diffusion abnormality) and basic interpretation of the arterial blood gas measurements. The text comes with eight try-it- now screens, each allowing the user to interact with important concepts and equations. An audio-annotated guided tutorial with self-assessment questions is also included.

Watch the Intro Video

$60 / year

This license provides access to:

A basic primer of ECMO and the physiology of blood gas exchange
A basic primer of cardiovascular physiology
Detailed simulation of hemodynamics, O2 and CO2 fluxes and regional blood gases
Interactive tutorials on ECMO
Extensive Try-It-Now library
Access a library of prestored clinical cases and examples
Ability to save, recall and share parameter sets that you create

Purchase

Features

Textbooks

The Harvi-Student textbook has chapters that provide an overview of

Basics of Cardiovascular Anatomy and Cellular Physiology
Ventricular Pressure-Volume Analysis (including preload, afterload, contractility, diastolic properties and the Frank-Starling relationship)
Introduction to Cardiovascular Pathologies (including valve pathologies, the coronary circulation and heart failure).
Try-it- Now’s related to all of these concepts

The Harvi-ECMO textbooks have detailed chapters on

Review of Cardiovascular Physiology and the Pressure-Volume Loop
The Physiology of Gas Exchange
Veno-Venous ECMO
Veno-Arterial ECMO
ECMO Device Hemodynamics
LV Decompression Strategies on ECMO
Cardiopulmonary Bypass

Simulation Parameters

Harvi-ECMO simulation gives access to parameter sets to

ECMO and CPB device settings such as flows, gas sweep, inflow and outflow cannulae
Select from among 9 different cannulation configurations of ECMO
Patient characteristics such as alveolar minute ventilation, DLCO, hemoglobin, total body oxygen consumption and respiratory quotient
Initialize arterial blood gases

Simulation Outputs

Graphical output options include ability to display

Pressure-volume loops of 1, 2 or 4 chambers simultaneously
A wide range of continuous signal tracings over time (e.g., blood pressure, pulmonary pressures, blood flow profiles across any cardiac valve, LV and RV pressures and volumes, blood flow profile through shunts)
1, 2 or 3 time plots simultaneously
Blood gases in each of 9 different compartments of the cardiovascular simulation (including arterial and venous blood gases)
Volume of blood reservoir during CPB along with inflow and outflow cannula blood flows
Ability to view the anatomy of each ECMO configuration

Numerical output options include ability to display

A wide ranges of standard cardiovascular parameters (e.g., blood pressure, pulmonary pressures, cardiac output, LV and RV ejection fractions, volumes and pressures)
Arterial and venous blood gases
Blood flow selected mechanical support devices

Compare Versions of Harvi

Click on a category to see what is included in each version.

Books

Student
Advanced
ECMO
Complete
Professor

Basic Physiological Principles
no
x
no
x
x

Advanced Physiological Principles
no
x
no
x
x

Student - Introduction to Cardiovascular Physiology
x
x
x
x
x

ECMO and the Physiology of Gas Exchange
no
no
x
x
x

Understanding Blood Gases
x
x
no
x
x

Input Panels

Student
Advanced
ECMO
Complete
Professor

Basic LV
x
x
no
x
x

Basic 4 Chamber
x
x
x
x
x

Ventricles & Pericardium
no
x
no
x
x

Atria
no
x
no
x
x

Valves & Shunts
no
x
x
x
x

Rhythm
no
x
no
x
x

Vessels
no
x
no
x
x

Patient Simulator
no
x
x
x
x

Pharmacology
x
x
x
x
x

Devices
no
x
x
x
x

ECMO
no
no
x
x
x

CardioPulmonary Patient
no
no
x
x
x

ECMO/Patient
no
no
x
x
x

Lung/MVO2/ABG
no
no
no
no
x

IABP
no
x
no
x
x

Scenarios
no
no
no
no
x

CardioPulmonaryBypass
no
no
x
x
x

TEACH
no
x
x
x
x

Output Panels

Student
Advanced
ECMO
Complete
Professor

Basic
x
x
x
x
x

Hemodynamics
x
x
x
x
x

Valves/Shunts
no
x
no
x
x

Aortic Valve Doppler
no
x
no
x
x

Pulmonary Valve Doppler
no
x
no
x
x

Devices
no
x
no
x
x

Blood Gases
no
no
x
x
x

LV Metabolism
no
x
no
x
x

ECMO
no
no
x
x
x

Capture/Hemo
x
x
x
x
x

Capture/ABG
no
no
x
x
x

Plots

Student
Advanced
ECMO
Complete
Professor

1 PV Loop & 1 Time Plot
x
x
x
x
x

1 PV Loop & 2 Time Plots
no
x
x
x
x

1 PV Loop & 3 Time Plots
no
x
no
x
x

4 PV Loops & 3 Time Plots
x
x
no
x
x

2 PV Loops
no
no
no
no
x

2 PV Loops & 2 Time Plots
no
no
x
x
x

4 PV Loops
no
no
no
no
x

6 Time Plots
no
no
no
no
x

Patient Monitor
x
x
x
x
x

Patient Monitor & 1 PV Loop & 1 Time Plot
no
x
no
x
x

Energetics (MVO2-PVA)
no
x
no
x
x

Blood Gases
no
no
x
x
x

Blood Gases & 1 PV Loop & 1 Time Plot
no
no
x
x
x

Blood Gases & 4 PV Loops & 4 Time Plots
no
no
x
x
x

Body
no
no
x
x
x

Body & 1 PV Loop & 1 Time Plot
no
no
x
x
x

Body & 4 PV Loops & 3 Time Plots
no
no
x
x
x

Pump Hemodynamics
no
x
no
x
x

ECMO Monitor
no
no
x
x
x

PV Loop & ECMO Monitor & Patient Monitor
no
no
x
x
x

Body & ECMO Monitor & Patient Monitor
no
no
x
x
x

ABG & ECMO Monitor & Patient Monitor
no
no
x
x
x

CardioPulmonary Bypass
no
no
no
no
x

CardioPulmonary Bypass & 4 PV Loops & 4 Time Plots
no
no
no
no
x

CardioPulmonary Bypass & Blood Gases
no
no
no
no
x

CardioPulmonary Bypass & Patient Monitor
no
no
x
x
x

CardioPulmonary Bypass & 4 PV Loops & 1 Time Plot & Blood Gases
no
no
no
no
x

Display and Download Tools

Student
Advanced
ECMO
Complete
Professor

Signal Recording
no
no
no
no
x

End of Beat Input & Output Recording
no
no
no
no
x

Auxiliary Plot Windows
no
no
no
no
x