A 52-year-old man with a 10-year history of hypertension controlled on amlodipine is scheduled for elective laparoscopic cholecystectomy. He is asymptomatic at rest and exercises regularly. His blood pressure is 138/88 mmHg and heart rate is 72 bpm. What is the most common ASA Physical Status classification assigned to patients undergoing elective surgery in India?

Explanation

## ASA Physical Status Classification Overview The ASA Physical Status classification is a standardized system for preoperative risk stratification. It categorizes patients into six classes based on systemic disease and functional capacity. ### ASA Classification Categories | ASA Class | Definition | Examples | Perioperative Risk | |-----------|-----------|----------|-------------------| | I | Healthy, no systemic disease | Young, healthy patient | Minimal | | II | Mild systemic disease, no functional limitation | Controlled hypertension, mild obesity, age >60 | Low | | III | Severe systemic disease with functional limitation | Poorly controlled diabetes, CAD, COPD | Moderate | | IV | Severe systemic disease with constant threat to life | Unstable angina, severe sepsis, advanced malignancy | High | | V | Moribund patient, not expected to survive 24 hours | Massive trauma, ruptured aorta | Very High | | VI | Brain-dead patient for organ harvesting | — | — | ### Epidemiology in Indian Surgical Population **Key Point:** ASA II is the most common classification in elective surgical populations globally and in India, accounting for approximately 40–50% of all elective cases. **Clinical Pearl:** The patient in the vignette (controlled hypertension on monotherapy, asymptomatic, good functional capacity) is a classic ASA II example. Controlled comorbidities without functional limitation define this class. **High-Yield:** ASA I patients (completely healthy) represent only 15–20% of elective surgical populations. Most patients have at least one mild systemic disease (hypertension, diabetes, obesity, age >60). ### Why ASA II is Most Common 1. **Aging population:** Majority of elective surgical patients are >40 years old with age-related comorbidities. 2. **Prevalence of hypertension:** Affects ~25–30% of Indian adults; most are controlled on medication. 3. **Mild obesity and metabolic syndrome:** Common in urban populations undergoing elective surgery. 4. **Diabetes:** Mild to moderate, controlled disease is frequent. **Mnemonic:** **CHAMP** — Common reasons for ASA II classification: - **C**ontrolled hypertension - **H**yperglycemia (mild diabetes) - **A**ge >60 years - **M**ild obesity (BMI 25–35) - **P**rior surgery without complications ### Clinical Correlation The patient described (controlled HTN, asymptomatic, good exercise tolerance) meets ASA II criteria: - One mild systemic disease (hypertension) ✓ - No functional limitation ✓ - Able to perform activities of daily living ✓ [cite:Miller's Anesthesia 8e Ch 27]