epawp/index.html at main · parameterz/epawp · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>ePAWP Calculator - Estimate Pulmonary Artery Wedge Pressure</title>
    <meta name="description" content="Calculate estimated pulmonary artery wedge pressure (ePAWP) using this simple online calculator.">
    <meta name="keywords" content="ePAWP, pulmonary artery wedge pressure, calculator, cardiology, noninvasive, echocardiography">
    <meta name="robots" content="index, follow">
<style>
    body {
        font-family: Arial, sans-serif;
        margin: 0;
        padding: 0;
        box-sizing: border-box;
    }
    .container {
        max-width: 600px;
        margin: 50px auto;
        padding: 20px;
        border: 1px solid #ccc;
        border-radius: 5px;
        background-color: #f9f9f9;
    }
    .citation {
        margin-top: 20px;
        padding: 10px;
        background-color: #f0f0f0;
        border: 1px solid #ccc;
        border-radius: 5px;
    }
    .citation a {
        color: #007bff;
        text-decoration: none;
    }
    label {
        font-weight: bold;
    }
    input[type="number"] {
        width: 100%;
        padding: 8px;
        margin: 5px 0;
        border: 1px solid #ccc;
        border-radius: 3px;
        box-sizing: border-box;
    }
    button {
        width: 100%;
        padding: 10px;
        margin-top: 10px;
        border: none;
        border-radius: 3px;
        background-color: #007bff;
        color: #fff;
        font-size: 16px;
        cursor: pointer;
    }
    button:hover {
        background-color: #0056b3;
    }
    #result {
        margin-top: 20px;
        font-size: 18px;
        font-weight: bold;
    }
    .abnormal {
        color: #530808;
        background-color: #f2dede;
        border: 1px solid #ebccd1;
        padding: 5px;
        border-radius: 5px;
    }
    @media only screen and (max-width: 600px) {
        input[type="number"] {
            padding: 8px;
            font-size: 14px;
        }
        button {
            padding: 12px;
            font-size: 14px;
        }
        .abnormal {
            padding: 8px;
        }
        #result {
            display: flex;
            flex-direction: column;
            align-items: center;
        }
    }    </style>
</head>
<body>
<div class="container">
    <h2>Estimation of Pulmonary Artery Wedge Pressure (ePAWP)</h2>
    <label for="LAVi">Left Atrial Volume Index (LAVi) (ml/m²):</label>
    <input type="number" id="LAVi" step="0.01" required>
    <label for="MVE">Mitral Valve E Velocity (cm/s):</label>
    <input type="number" id="MVE" step="0.01" required>
    <label for="PVS">Pulmonary Vein S Velocity (cm/s):</label>
    <input type="number" id="PVS" step="0.01" required>
    <label for="toggle">Exclude Pulmonary Vein S Velocity?:</label>
    <input type="checkbox" id="toggle" >
    <button onclick="calculate()">Calculate ePAWP</button>
    <div id="result"></div>
    <div>
        <p class="citation">Citation: Thomas Lindow, Aristomenis Manouras, Per Lindqvist, Daniel Manna, Björn Wieslander, Rebecca Kozor, Geoff Strange, David Playford, Martin Ugander, Echocardiographic estimation of pulmonary artery wedge pressure: invasive derivation, validation, and prognostic association beyond diastolic dysfunction grading, European Heart Journal - Cardiovascular Imaging, Volume 25, Issue 4, April 2024, Pages 498–509, <a href="https://doi.org/10.1093/ehjci/jead301" target="_blank">https://doi.org/10.1093/ehjci/jead301</a></p>

    </div>
</div>

<script>
    function calculate() {
        var LAVi = parseFloat(document.getElementById('LAVi').value);
        var MVE = parseFloat(document.getElementById('MVE').value);
        var PVS = parseFloat(document.getElementById('PVS').value);
        var excludePVS = document.getElementById('toggle').checked;

        if (excludePVS) {
            // Use alternate equation without PVS
            ePAWP = (0.230 * LAVi) + (0.102 * MVE) - 2.7;  //0.230 × LAVi + 0.102 × mitral E − 2.7
        } else {
            // Use original equation with PVS
            ePAWP = (0.179 * LAVi) + (2.672 * (MVE / PVS)) + 2.7;
        }
        ePAWP = Math.round(ePAWP); //we should use integers for pressure
        var resultElement = document.getElementById('result');

        if (ePAWP > 15) {
            resultElement.innerHTML = "ePAWP: <span class='abnormal'>" + ePAWP + " mmHg</span>";
        } else {
            resultElement.innerText = "ePAWP: " + ePAWP + " mmHg";
        }
    }
    document.getElementById('toggle').addEventListener('change', function() {
        if (document.getElementById('LAVi').value && document.getElementById('MVE').value && document.getElementById('PVS').value) {
            calculate();
        }
    });
    </script>
    <footer>
    </footer>
</body>
</html>