Jan Sloves Impressed With Tarık Taştekin’s Raynard’s Phenomenon Demonstration
Jan Sloves, President and Consultant at Vascular Imaging Professionals LLC, reposted Tarık Taştekin’s post on LinkedIn:
“Great demonstration of Raynard’s phenomenon from Tarık Taştekin”
Quoting Tarık Taştekin’s post:
“When the Cold Turns Fingers White
Just a few seconds of cold exposure and the fingertips suddenly lose their color. It may look harmless, even artistic. But what you’re witnessing is a spasm of the small arteries the hallmark of Raynaud’s phenomenon.
In Raynaud’s, cold or emotional stress triggers an exaggerated vasoconstrictive response in digital arterioles, causing a transient reduction in blood flow to the skin.
This leads to a characteristic sequence of color changes:
White (ischemia) – reduced perfusion
Blue (cyanosis) – oxygen deprivation
Red (reactive hyperemia) – reperfusion as vessels dilate again
In this video, as the hand is immersed in warm water, the vessels reopen and oxygenated blood returns a real-time demonstration of microvascular reactivity and the body’s effort to maintain core temperature through peripheral vasospasm.
Raynaud’s phenomenon can be primary (idiopathic) and benign, often seen in young women. However, secondary Raynaud’s may signal underlying systemic disorders such as scleroderma, systemic lupus erythematosus, vasculitis, or thromboangiitis obliterans. Recurrent, painful, or asymmetric attacks should prompt further vascular and rheumatologic evaluation.
What appears to be a simple color change is, in reality, a vivid reflection of vascular physiology in action the body’s fine balance between protection and perfusion.”
Stay updated with Hemostasis Today.
-
Apr 6, 2026, 16:39Dhinesh Selvaraju: FDA Approves Narsoplimab (Yartemlea) as 1st Treatment for TA-TMA in Adults and Children
-
Apr 6, 2026, 16:38Linda Vorberg: A Detailed Analysis on The Usefulness of CT for DL-Based Stroke Lesion Segmentation
-
Apr 6, 2026, 16:37Colleen Hearn: Telestroke Helps Resource-Limited Facilities Gain Access to Unavailable Expertise
-
Apr 6, 2026, 16:37Nicolas Hubacz: AI Maps Neuroplasticity in Stroke Recovery – How the Brain Adapts After Injury
-
Apr 6, 2026, 16:36Cristina de Diego Alonso: Movement Is Not Just an Exercise, It Is The Rhythm of Daily Life
-
Apr 6, 2026, 16:35Charles Okyere Boadu: What Is The Most Likely Cause of Persistent Thrombocytopenia Despite Transfusion?
-
Apr 6, 2026, 16:34Tumor Mutations and VTE Risk – New Insights from a 12,500-Patient Cancer Study – JTH
-
Apr 6, 2026, 16:31Wolfgang Miesbach: New Real-World Data Reveal Ongoing Burden in Moderate-to-Severe Haemophilia A
-
Apr 6, 2026, 16:26Heghine Khachatryan։ Targeting High Risk Antiphospholipid Syndrome in Pregnancy with Hydroxychloroquine