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.
-
Jul 9, 2026, 12:41Thomas Palmer-Dench: Hexokinase Controls Platelet Activation and Hemostasis
-
Jul 9, 2026, 12:19Paschalis Evangelidis: Join Our Special Issue on Thrombosis and Vascular Disorders
-
Jul 9, 2026, 12:16Fernanda Betti Solano: Could Iron Deficiency Be Affecting Your Sleep?
-
Jul 9, 2026, 12:08Andreas Calatzis: What is the Rationale for Collagen-Induced Platelet Aggregation Testing?
-
Jul 9, 2026, 11:54Deepak Pradhan։ Can Withaferin-A Help Combat Drug-Resistant Malaria?
-
Jul 9, 2026, 11:26Peter Zhang: Is Canada Ready for the Gene Therapy Era?
-
Jul 9, 2026, 09:35Pradeebha Muthukumar: Do You Know the Signs of Anemia?
-
Jul 9, 2026, 09:24Maryam Majid: Machine Learning for Anemia Risk Prediction
-
Jul 9, 2026, 08:46Jordan Agay: Folate Deficiency in Patients Receiving PARP Inhibitors