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Muscle Biopsy CHCT

The CHCT is the standard for MH diagnostic testing and is used to determine a patient’s susceptibility to MH.*

Patients must be referred to specialized CHCT Centers in order to have the special biopsy for CHCT performed.

MH experts generally feel a child less than 10 years old is not a good candidate for CHCT testing.

Muscle biopsies for CHCT must be performed at one of the designated CHCT testing centers because the test must be performed on fresh tissue.

CHCT TESTS CANNOT BE PERFORMED BY MAIL. Patient must travel to an approved testing center.

*Allen, GC, Larach MG, Kunselman AR, and The North American Malignant Hyperthermia Registry of MHAUS: The sensitivity and specificity of the caffeine-halothane contracture test: A report from the North American Malignant Hyperthermia Registry. Anesthesiology 1998; 88:579-88. The online reference can be located at the Anesthesiology website archive March 1998.

Current Procedural Terminology (CPT) and ICD Codes
CPT and ICD Codes

Current Procedural Terminology (CPT) Codes codes are numbers assigned to every task and service a medical practitioner may provide to a patient including medical, surgical and diagnostic services. These are the codes used to describe the Caffeine Halothane Contracture Test.

CHCT - Muscle Biopsy Testing Centers
CHCT - Muscle Biopsy Testing Centers

These centers are complying to the standardization protocol for the Caffeine Halothane Contracture Test (CHCT) that resulted from conferences held 11/87, 11/89, 6/90, 11/91, 9/94, 9/98, 3/01, 9/02, 6/04, 9/07, 4/10,11/13, and 9/17.

see also

FAQ Video: Muscle Biopsy & Testing
FAQ Video: Muscle Biopsy & Testing

Where can patients go for the muscle biopsy test for MH? Can a sample be taken and sent to a testing lab? If not, why?

Muscle Biopsy Video with English Audio
Muscle Biopsy Video with English Audio

The Caffeine Halothane Contracture Test (CHCT) is performed as a muscle biopsy at testing centers in the North America. This video presents an actual muscle biopsy, or Caffeine Halothane Contracture Test (CHCT).

Total runtime: 11m 8s

The mission of MHAUS is to promote optimum care and
scientific understanding of MH and related disorders.