- Succinylcholine Sensitivity
- Apnea, Postanesthetic
- Cholinesterase 2 Deficiency
- Pseudocholinesterase E1
- Suxamethonium Sensitivity
Your QuestionI was told that I had pseudocholinesterase deficiency after I experienced difficulty in the resumption of breathing following surgery with general anesthesia. Is there a test that can verify this diagnosis? Are my children at risk for this condition?
We have identified the following information that we hope you find helpful. If you still have questions, please contact us.
Questions on this page
- What is pseudocholinesterase?
- What is pseudocholinesterase deficiency?
- What causes of pseudocholinesterase deficiency?
- How is pseudocholinesterase deficiency diagnosed?
- How is pseudocholinesterase deficiency inherited?
- What treatment is available for pseudocholinesterase deficiency?
- How can I avoid exogenous sources of choline esters that might trigger a reaction?
- Where can I obtain a medic-alert bracelet?
The inherited form of the condition is caused by mutations (changes) in the genes that produce pseudocholinesterase. The mutations cause the gene to produce inadequate amounts of pseudocholinesterase or to produce abnormal forms of the enzyme. Individuals that have only one mutated pseudocholinesterase gene have partial deficiency in enzyme activity, which results in a slightly prolonged duration of paralysis, longer than 5 minutes but shorter than 1 hour, following the administration of succinylcholine. Less than 0.1% of the general population carries two mutated copies of the pseudocholinesterase gene that will produce clinically significant effects from succinylcholine lasting longer than 1 hour.
The acquired causes of pseudocholinesterase deficiency include the following: chronic infections, extensive burn injuries, liver disease, cancer, malnutrition, and taking certain medications.
Genetic testing is also available to look for mutations in the BCHE gene. Visit the Genetic Testing Registry to find a list of laboratories that offer genetic testing.
Individuals who wish to learn more about their risk of inheriting or passing on the gene for pseudocholinesterase deficiency should seek the advice of a genetics professional. Visit the Services section to learn how you can find a genetics professional in your area.
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- Pseudocholinesterase deficiency. Genetics Home Reference. April 2012; http://ghr.nlm.nih.gov/condition/pseudocholinesterase-deficiency. Accessed 2/27/2014.
- Daniel R Alexander. Pseudocholinesterase Deficiency. eMedicine. July 17, 2006; http://www.emedicine.com/med/topic1935.htm. Accessed 9/4/2008.
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- Butyrylcholinesterase. Online Mendelian Inheritance in Man (OMIM). August 23, 2006; http://www.ncbi.nlm.nih.gov/entrez/dispomim.cgi?id=177400. Accessed 9/4/2008.
- Pseudocholinesterase Deficiency. Medscape Reference. Daniel R Alexander. January 13, 2012; http://emedicine.medscape.com/article/247019-overview. Accessed 10/23/2013.