Adding info on hover over svg feature and CHA2_DS2-VASc calculator

src/app/utils/calculators/Arrhythmias and Anti-Coagulation/CHA2DS2-VASc-score.ts

@@ -0,0 +1,158 @@
+import { Calculator, Input, Interpretation, Values } from "../types";
+
+const parameters:Input[] = [
+    {
+        id:"chf",
+        name:"CHF/LV dysfunction",
+        type:"checkbox",
+        placeholder:"Whether the patient has CHF or LV dysfunction",
+        required:true
+    },
+    {
+        id:"hypertension",
+        name:"Hypertension",
+        type:"checkbox",
+        placeholder:"Whether the patient has hypertension",
+        required:true
+    },
+    {
+        id:"age",
+        name:"age",
+        type:"number",
+        placeholder:"Enter the age",
+        required:true,
+        min: 18,
+        max: 95
+    },
+    {
+        id:"dm",
+        name:"Diabetes Mellitus",
+        placeholder:"Whether the patient has diabetes",
+        type:"checkbox",
+        required:true
+    },
+    {
+        id:"ischemia",
+        name:"Prior ischemia",
+        placeholder:"Whether the patient had prior ischemic event",
+        type:"checkbox",
+        required:true
+    },
+    {
+        id:"vd",
+        name:"Vascular Disease",
+        placeholder:"Whether the patient has any vascular disease",
+        info:"Myocardial Infarction, Peripheral Vascular Disease etc.",
+        type:"checkbox",
+        required:true
+    },
+    {
+        id:"gender",
+        name:"Gender",
+        placeholder:"Select the gender",
+        type:"select",
+        required:true,
+        inputOptions:[
+            {
+                label:"Male",
+                value:"male"
+            },
+            {
+                label:"Female",
+                value:"female"
+            }
+        ]
+    }
+];
+
+export const cha2ds2 : Calculator = {
+    id:"cha2ds2",
+    name:"CHA₂DS₂-VASc Score",
+    desc:"CHA₂DS₂-VASc Score is a clinical prediction tool used to estimate the risk of stroke in patients with non-valvular atrial fibrillation (AF).",
+    inputs:parameters,
+    calc_func:(values : Values):number => {
+        const chf = values.chf as boolean;
+        const hypertension = values.hypertension as boolean;
+        const age = values.age as number;
+        const dm = values.dm as boolean;
+        const ischemia = values.ischemia as boolean;
+        const vd = values.vd as boolean;
+        const gender = values.gender as "male" | "female";
+        var score = 0;
+        if(chf) score++;
+        if(hypertension) score++
+        if(age >= 75) score = score + 2;
+        if(dm) score++;
+        if(ischemia) score = score + 2;
+        if(vd) score ++;
+        if(age >= 65 && age < 75) score++;
+        if(gender === "female") score++;
+        return score;
+    },
+    interpret_func:(score : number):Interpretation => {
+        if(score === 0){
+            return {
+                level:"low",
+                message:"The stroke risk % for the patient is 0.2%"
+            }
+        }
+        if(score === 1){
+            return {
+                level:"low",
+                message:"The stroke risk % for the patient is 0.6%"
+            }
+        }
+        if(score === 2){
+            return {
+                level:"low",
+                message:"The stroke risk % for the patient is 2.2%"
+            }
+        }
+        if(score === 3){
+            return {
+                level:"low",
+                message:"The stroke risk % for the patient is 3.2%"
+            }
+        }
+        if(score === 4){
+            return {
+                level:"moderate",
+                message:"The stroke risk % for the patient is 4.8%"
+            }
+        }
+        if(score === 5){
+            return {
+                level:"moderate",
+                message:"The stroke risk % for the patient is 7.2%"
+            }
+        }
+        if(score === 6){
+            return {
+                level:"moderate",
+                message:"The stroke risk % for the patient is 9.7%"
+            }
+        }
+        if(score === 7){
+            return {
+                level:"high",
+                message:"The stroke risk % for the patient is 11.2%"
+            }
+        }
+        if(score === 8){
+            return {
+                level:"high",
+                message:"The stroke risk % for the patient is 10.8%"
+            }
+        }
+        if(score === 9){
+            return {
+                level:"severe",
+                message:"The stroke risk % for the patient is 12.2"
+            }
+        }
+        return {
+            level:"none",
+            message:"invalid values"
+        }
+    }
+}