AI was sold to medicine as a way to save time and money. This week's evidence suggests it often spends both, and it should be paid for only when it saves them.

Read the letter and its sources: https://physicianintheloop.org/letters/2026-11-02/

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Smartwatch AI spots more hypertension than an office cuff check

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A Google artificial intelligence model reading consumer smartwatch sensors detected 65.8% of hypertension cases over seven days, versus 55.3% for an initial office blood pressure check, in a 196-person study published Thursday in Nature.

Both approaches had 90.0% specificity against 24-hour ambulatory monitoring, and the watch model needed no cuff calibration, the authors reported. Separately, a JAMA study of 5.2 million newborns found that the share not given vitamin K at birth more than doubled from 2017 to 2025, Wisconsin reported its first measles death since 1990, and the Centers for Medicare & Medicaid Services proposed dropping obstetric and emergency readiness training rules for hospitals.

In AI evidence, a 400-person randomized trial in JAMA Network Open found a generative AI maternal health chatbot did not improve anxiety or depression at 12 months, and Mayo Clinic Platform opened a clinical AI chatbot covering more than 35 specialties to Mayo clinicians and outside organizations in its programs.

In this episode

• Google's smartwatch AI catches 65.8% of hypertension cases in a week, beating an initial office cuff reading at 55.3%
• Newborns who skip the vitamin K shot have more than twice the risk of intracranial bleeding, a 5.2 million-infant study finds
• An infant dies of measles in Wisconsin, the state's first measles death since 1990, as cases reach 431
• A Washington dairy farmworker dies of bird flu, the first U.S. avian influenza death of 2026
• Medicare proposes scrapping hospital obstetric and emergency readiness training rules and asks about loosening CRNA supervision
• A generative AI chatbot for pregnant and postpartum patients fails to improve anxiety or depression in a 400-person trial
• Mayo Clinic opens an AI chatbot covering more than 35 specialties to its clinicians and partner organizations
• FDA clears PulseAI's model that reads atrial fibrillation on smartwatch and other wearable ECGs
• Electronic record alerts fail to cut routine testing before cataract surgery in a UCLA randomized trial

Measles cases this year are more than twice last year's. Texas is investigating the pediatricians who vaccinate children, and the children who depend on those doctors will pay.

Read the special topic and its sources: https://physicianintheloop.org/specials/measles-and-the-investigations/

The voice on this episode is generated by AI. It reads a special topic from Physician in the Loop as written; every fact in it links to its source.