6:15 AM. The phone rings before the alarm does. A patient in the ICU has developed chest pain and a dropping blood pressure. By the time Dr. Mehra reaches the hospital, the ECG is already on her phone, and the diagnosis is clear: an acute blockage, and the clock has started. In interventional cardiology, time is muscle. Every minute without blood flow means more heart tissue is lost.
7:40 AM. She is in the cath lab, scrubbed in, guiding a catheter through an artery in the wrist toward the heart. On the monitor, a live X-ray shows the blockage: a hard stop in a vessel that should be open. A wire crosses it. A balloon expands it. A stent holds it open. Forty minutes later, blood is flowing again, and a heart that was minutes from serious damage gets a second chance. There’s no time to sit with relief. The next patient is already being wheeled in.
10:30 AM. Outpatient clinic. This is the quieter, slower half of the job: a 34-year-old with a family history of heart disease and no symptoms, asking whether he needs a calcium score scan. A 58-year-old recovering from a stent placed six months ago, adjusting medication doses. A worried daughter asking questions on behalf of a father who insists he’s fine. Much of cardiology now happens here, in prevention and follow-up, not just emergencies.
1:00 PM. Lunch is usually eaten standing, between rooms, sometimes not at all.
3:00 PM. Back in the cath lab for a scheduled procedure, a complex, calcified blockage that requires careful planning and a steady hand. These cases can run two or three hours, requiring the same focus at the end as at the start.
7:00 PM. Rounds. Checking on the morning’s emergency patient, now stable and talking, asking when he can go home.
9:00 PM. Home, finally, though the phone stays close. Interventional cardiology doesn’t run on a clean schedule. Emergencies don’t wait for office hours, and the job asks for a kind of readiness that never fully switches off.
It’s a career built on urgency and precision in equal measure, the ability to stay calm when a heart stops cooperating, and the quiet satisfaction of watching a blocked artery open back up, again and again, one patient at a time.
