What did James MacKenzie blue plaque do at 17 Bentinck Street?

The Story

# 17 Bentinck Street Standing before this elegant Georgian townhouse in Marylebone, you're at the precise address where Sir James MacKenzie transformed the study of the human heart during those crucial four years from 1907 to 1911. It was within these walls that the pioneering Scottish physician conducted his revolutionary clinical research on cardiac rhythms and diseases of the heart, establishing methodologies that would fundamentally reshape how doctors understood and treated heart conditions. From his consulting rooms here, MacKenzie developed his famous polygraph—an instrument for recording the pulse—and documented countless case studies that challenged existing medical orthodoxy and laid the groundwork for modern cardiology. This address represents a pivotal moment in medical history: the point where a brilliant clinician moved to London's prestigious medical quarter and, working at the height of his powers, created the evidence-based foundation for an entirely new field of medicine that would save countless lives in the decades to come.