Hids

Leonard Hill, together with his colleagues Flack and Holzmann, was the first to describe in 1910 that the blood pressure in aortic valve insufficiency is higher in the leg arteries than in the brachial arteries (Deutsche medizinische Wochenzeitschrift 1922).

The HILL phenomenon is defined as an increase in systolic pressure in the popliteal artery of > 60 mm Hg above the pressure in the brachial artery (Herold 2024).

The HILL phenomenon can occur in the following diseases:

- Aortic valve insufficiency (Herold 2024)

- Open ductus arteriosus botalli (Schmailzl 2002)

The Hill phenomenon is based on an indirect blood pressure measurement. The thickness of the tissue surrounding the vessel and the flow velocity play a role (Leiner 1937).

1. Deutsche medizinische Wochenzeitschrift (1922) Georg Thieme Verlag Volume 48. DOI: https://books.google.de/books?id=hrA_AQAAMAAJ&q=leonard+hill++aortic insufficiency&dq=leonard+hill++aortic insufficiency&hl=en&newbks=1&newbks_redir=0&sa=X&ved=2ahUKEwiH37mHhfuFAxWVgf0HHZVkDxoQ6AF6BAgEEAI
2. Herold G et al (2024) Internal medicine. Herold Publishers 176
3. Kasper D L, Fauci A S, Hauser S L, Longo D L, Jameson J L, Loscalzo J et al. (2015) Harrison's Principles of Internal Medicine. Mc Graw Hill Education
4. Leiner G, Wachstein M. (1937) On the Hill symptom in aortic insufficiency. Klin Wochenschr 16, 822 - 824 . https://doi.org/10.1007/BF01777435
5. Schmailzl KJG, Hackelöer B J (2002) Pregnancy and disease: interaction - therapy - prognosis. Blackwell Verlag Berlin / Vienna 50