Cardiac surgery is treated as bespoke, low-volume, high-margin work — a US research hospital can bill over $100,000 for an operation most of the world cannot dream of affording. In India, where heart disease is common and incomes are low, the standard economics simply excluded almost everyone: too few surgeries, each priced to cover a hospital's overhead on its own.

Dr Devi Shetty, a cardiac surgeon, reasoned that the cost problem was really a volume problem. Surgery is expensive per case partly because hospitals do so few of them; push volume high enough and the fixed costs, the equipment prices, and the surgeon's own productivity all move. He set out to build a hospital that did more heart operations than anywhere on earth.

Narayana Health rebuilt heart surgery as a high-volume production system: a single campus performs on the order of 150 major surgeries a day, with surgeons moving table to table doing only the step they are best at (leaving prep and closing to others), so each does far more operations a year than a Western counterpart and gets better and faster at them. Volume drives every cost down at once — buying supplies for thousands of procedures wins prices no boutique unit can, and running ~2,000 diagnostic tests a day where others run 30 lets Narayana negotiate hard on equipment.

Ran it as a high-volume factory: surgeons specialize in steps, volume cuts costs, and rich patients' surplus subsidizes the poor, landing surgery under $2,000.

High volume lets each surgeon specialize in one step, boosting speed and skill, cutting costly complications.

Procurement at thousands-of-cases scale wins input prices that boutique units can't match.

Fixed costs per case collapse when spread over 150 daily surgeries instead of a handful.

Low base cost makes cross-subsidy arithmetic: paying patients' surplus covers free ones without charity.

When a service is expensive, check if low volume is the real driver; concentrating volume can cut unit cost so much that cross-subsidy becomes self-sustaining.

Open-heart surgery under ~$2,000 (simple cases ~$800) at quality metrics rivaling Western hospitals; ~150 major operations a day, treating rich and poor alike via cross-subsidy. The 'focused factory' proof for complex surgery — studied at Harvard and Wharton, and echoed by Aravind in eye care; volume-plus-cross-subsidy became the template for affordable tertiary care in the developing world.

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The sources

  1. Frugal innovation in healthcare: the Narayana Health model peer-reviewed journal (PMC) · pmc.ncbi.nlm.nih.gov
  2. The World's Largest Heart Factory Forbes India · forbesindia.com