RT Book, Section A1 Klippel, John H. A2 Goldsmith, Lowell A. A2 Katz, Stephen I. A2 Gilchrest, Barbara A. A2 Paller, Amy S. A2 Leffell, David J. A2 Wolff, Klaus SR Print(0) ID 56080095 T1 Chapter 170. Raynaud Phenomenon T2 Fitzpatrick's Dermatology in General Medicine, 8e YR 2012 FD 2012 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-166904-7 LK accessmedicine.mhmedical.com/content.aspx?aid=56080095 RD 2024/10/15 AB |PrintRaynaud Phenomenon at a GlanceAffects 10% of the population; 4:1 female–male ratio.Chronic episodic attacks of digital ischemia provoked by exposure to cold or emotional stress.Classified into primary (idiopathic) and secondary (underlying disease or cause present) forms; severity ranges from mild/benign to severe with loss of digital tissues.Connective tissue diseases—particularly systemic sclerosis—are the most common forms of secondary Raynaud.Both nonpharmacologic and drug therapies are used to reduce the frequency and severity of attacks.