Henry Bazett

Henry Cuthbert Bazett (1885 – 1950)

Henry Cuthbert Bazett (1885-1950) was an English physiologist.

Main area of work was the application of physiological research to clinical problems. He perfected an exact technique for studying temperature changes in circulating blood, and showed the importance of the venal comites in the pre-cooling of the arterial blood by the returning venous blood.

Eponymously affiliated with Bazett formula to calculate corrected QT interval (QTc) for varying heart rates. In 1920 Bazett related the corrected QT interval to the square root of the RR interval (the Bazett formula) independent of the relationship defined by Fridericia (1920) the duration of the QT interval was related to the cube root of the RR interval (the Fridericia formula)

  • Born on June 25, 1885 in Gravesend, England
  • Educated at Oxford University: BA 1908; MB BCh. 1911; MS 1913; MD 1920
  • 1910 – Physiology demonstrator St Thomas’s Hospital
  • 1912-1914 Radcliffe travelling Fellowship, Harvard University
  • 1914-1918 Medical officer in the British Army (RAMC); Order of the British Empire (OBE); Military Cross
  • 1919 – Lecturer in Physiology, Oxford University
  • 1921 – Professor of Physiology, University of Pennsylvania (holding chair until his untimely death)
  • 1941-1943 Visiting professor of medical research, University of Toronto (aviation research)
  • 1946 – Commander of the Most Excellent Order of the British Empire (CBE)
  • 1950 – President of the American Physiological Society
  • Died July 11, 1950 on a ship bound for the International Physiological Congress in Copenhagen

Medical Eponyms
Bazett formula (1920)

Bazett formula ‘corrects’ the measured QT interval to a value (QTc) attributable to a heart rate of 60 bpm. Thus providing a QT interval value that a particular patient would theoretically have if their heart rate was 60 beats/min


Major Publications



Eponymous terms


BA MA (Oxon) MBChB (Edin) FACEM FFSEM. Emergency physician, Sir Charles Gairdner Hospital.  Passion for rugby; medical history; medical education; and asynchronous learning #FOAMed evangelist. Co-founder and CTO of Life in the Fast lane | Eponyms | Books | Twitter |

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