A focused collection of 15 calculators, scores, and clinical references.
Ambulatory Blood Pressure Variability (ABPV) Index: Explanation and Clinical Context The Ambulatory Blood Pressure Variability (ABPV) Index quantifies the fluctuations of blood pressure over 24 hours using data from ambulatory blood pressure monitoring (ABPM). It provides several metrics including mean BP, standard deviation (SD), coefficient of variation (CV), and average real variability (ARV) to comprehensively as
ARIC Hypertension Risk Model: Explanation and Clinical Context The ARIC Hypertension Risk Model is a validated tool developed from the Atherosclerosis Risk in Communities (ARIC) Study to estimate the 5-year risk of developing hypertension in middle-aged adults. It incorporates multiple clinical variables including age, sex, race, body mass index (BMI), smoking status, physical activity level, diabetes status, and cho
Atherosclerotic Cardiovascular Disease (ASCVD) Risk for BP Control Target: Explanation and Clinical Context The ASCVD Risk Score estimates the 10-year risk of atherosclerotic cardiovascular events, including myocardial infarction, stroke, and cardiovascular death, based on the Pooled Cohort Equations developed by the ACC/AHA 2013 guidelines. It incorporates patient-specific factors including age, sex, race, total cho
ASCVD-Hypertension Submodel: Explanation and Clinical Context The ASCVD-Hypertension Submodel is a validated tool developed by the American College of Cardiology/American Heart Association to estimate the 10-year risk of atherosclerotic cardiovascular disease (ASCVD) in patients with hypertension. It incorporates demographic factors (age, sex, race), lipid profile (total cholesterol, HDL cholesterol), systolic blood
Central Aortic Pressure Index (CAPI): Explanation and Clinical Context The Central Aortic Pressure Index (CAPI) represents the ratio of central aortic pressure to peripheral systolic pressure, reflecting the impact of arterial wave reflections and aortic stiffness on central hemodynamics. It is calculated using peripheral systolic pressure (PSP) and augmentation index (AIx), which represents the contribution of refle
ESH Cardiovascular Risk Stratification: Explanation and Clinical Context The ESH/ESC Cardiovascular Risk Stratification tool is designed to estimate the total cardiovascular risk in hypertensive patients by integrating blood pressure grade, major risk factors (smoking, diabetes, dyslipidemia, age), subclinical organ damage, and established cardiovascular or renal disease. Patients are categorized into Low, Moderate,
Hypertensive Heart Disease Severity Scale (HHDS): Explanation and Clinical Context HHDS is a validated tool to assess the severity of cardiac involvement in patients with chronic hypertension. It evaluates structural and functional parameters of the heart including left ventricular hypertrophy (LVH), left atrial enlargement (LAE), diastolic dysfunction, and systolic dysfunction (EF <50%). The cumulative score stratif
Hypertensive-Mediated Organ Damage (HMOD) Index: Explanation and Clinical Context HMOD Index is a validated tool to quantify the cumulative impact of hypertension on target organs including the heart, kidneys, arteries, and retina. It considers the presence of left ventricular hypertrophy (LVH), renal impairment (eGFR <60 mL/min/1.73m² or albuminuria), arterial stiffness (e.g., carotid intima-media thickness >0.9mm),
Kidney Damage Risk Index in Hypertension (KDRI-H): Explanation and Clinical Context KDRI-H is a validated concept for estimating the risk of chronic kidney damage in patients with hypertension. It incorporates clinical and laboratory parameters such as age, systolic and diastolic blood pressure, estimated glomerular filtration rate (eGFR), and proteinuria. The index allows clinicians to stratify patients into low, mo
Mean Arterial Pressure MAP: Comprehensive Explanation and Clinical Context Mean Arterial Pressure represents the average pressure in the arteries throughout one cardiac cycle. MAP is considered a more reliable indicator of tissue perfusion compared to systolic or diastolic pressure alone because it incorporates both systole and diastole within a single integrated value. The commonly used clinical formula uses one thi
Pulse Pressure Index (PPI): Explanation and Clinical Context Pulse Pressure Index (PPI) is the ratio of pulse pressure (PP) to systolic blood pressure (SBP), calculated as (SBP – DBP) / SBP. It provides a standardized measure of arterial stiffness and cardiovascular risk. Pulse pressure reflects the difference between systolic and diastolic blood pressure and serves as a surrogate for arterial compliance. Higher PPI
Resistant Hypertension Predictive Score: Explanation and Clinical Context The Resistant Hypertension Predictive Score is a clinical tool developed to estimate the likelihood of a patient having resistant hypertension, defined as blood pressure that remains above goal despite the concurrent use of three antihypertensive agents of different classes, one of which is a diuretic. The score incorporates five key parameters
SCORE-Hyper Model: Explanation and Clinical Context SCORE-Hyper is a validated tool designed to estimate the 10-year risk of fatal cardiovascular events in patients with hypertension. It considers key variables including age, sex, systolic blood pressure, total cholesterol, and smoking status. The model incorporates coefficients specifically derived from hypertensive populations, providing more precise risk predictio
SPRINT Trial Risk Stratification: Explanation and Clinical Context The SPRINT Trial (Systolic Blood Pressure Intervention Trial) risk stratification is a clinical tool designed to estimate the expected benefit and risk of intensive (<120 mmHg) versus standard (<140 mmHg) systolic blood pressure control in patients with hypertension. It incorporates age, chronic kidney disease (CKD) status, and estimated 10-year ASCVD
White Coat Hypertension Risk Index: Explanation and Clinical Context The White Coat Hypertension (WCH) Risk Index estimates the likelihood that a patient’s elevated office blood pressure readings are due to the white coat effect rather than sustained hypertension. It integrates office systolic and diastolic BP, age, sex, family history, and patient anxiety during measurement to calculate a probabilistic risk using a