RT Book, Section A1 Bissonnette, Bruno A1 Luginbuehl, Igor A1 Marciniak, Bruno A1 Dalens, Bernard J. SR Print(0) ID 58077148 T1 Myotonic Dystrophy T2 Syndromes: Rapid Recognition and Perioperative Implications YR 2006 FD 2006 PB The McGraw-Hill Companies PP New York, NY SN 9780071354554 LK accessanesthesiology.mhmedical.com/content.aspx?aid=58077148 RD 2024/04/19 AB Congenital anomaly of an ionic channel resulting in a multisystemic disease with anomalies of skeletal, smooth, and cardiac muscles. May cause mental deficiency and loss of hair. The more obvious features are muscle rigidity and lack of muscle relaxation after contraction. Onset occurs during early adulthood. However, it may occur at any age and is extremely variable in degree of severity. Progression of the disease is slow, sometimes evolving over 50 to 60 years. There appear to be at least two forms.