Malignant hyperthermia or myotonia congenita
Amores Lloret, A.; Martínez Hernández, A.
Revista Espanola de Anestesiologia Y Reanimacion 35(6): 346
1988
ISSN/ISBN: 0034-9356 PMID: 3238135 Document Number: 309869
We report a family in which two sisters with myotonia congenita (MyC) were referred for malignant hyperthermia (MH) evaluation after each developed muscle rigidity with anesthesia. Halothane contracture testing of skeletal muscle in both was consistent with MH susceptibility. A third sister without clinical evidence of MyC was negative on contracture testing. These results suggest an association between MyC and MH susceptibility.