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Journal of Ultrasound in Medicine, Vol 9, Issue 5 291-295, Copyright © 1990 by American Institute of Ultrasound in Medicine

JOURNAL ARTICLE

The value of ultrasound for the diagnosis of malignant hyperthermia

L. von Rohden, V. Steinbicker, P. Krebs, D. Wiemann and H. Koditz
Pediatric Clinic of the Medical Academy of Magdeburg, East Germany.

A highly feared complication of anesthesia is malignant hyperthermia (MH). In vivo identification of MH is achieved sonographically. Transducers of 7.5 and 5 MHz were used for transverse cuts of the upper and lower leg. Sonographic changes were found in 22 out of 33 subjects from 12 families affected by MH, including several positive subjects not previously known to be subject to MH. The ultrasound image reveals increased parenchymal echogenicity, with obscuring of intramuscular septum and fascia. Myosonography allows noninvasive screening of family members of subjects with known MH; potentially dangerous challenge testing or biopsy may be reserved for specific indications.




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Copyright © 1990 by the American Institute of Ultrasound in Medicine.