"pregnancy: most common in the third trimester and usually resolves post-partum 26"
"There are no established diagnostic criteria for carpal tunnel syndrome, and reliance on one diagnostic parameter is not recommended 26. Helpful tools include validated questionnaires (e.g. Kamath and Stothard questionnaire, Katz and Stirrat hand symptom diagram), clinical examination, nerve conduction studies, and imaging 26."
"Intraneural hyper-vascularisation is another feature with high diagnostic accuracy, although it may be absent in chronic cases 16,17."
Expected headings
"Complications"
"There are no established diagnostic criteria for carpal tunnel syndrome, and reliance on one diagnostic parameter is not recommended 26. Helpful tools include validated questionnaires (e.g. Kamath and Stothard questionnaire, Katz and Stirrat hand symptom diagram), clinical examination, nerve conduction studies, and imaging 26."
"There is a wide range of causes of carpal tunnel syndrome:"
"The clinical presentation can harbour some pitfalls. Sensory and pain symptoms of the pronator teres syndrome and carpal tunnel syndrome can overlap; one can distinguish the two by examining for numbness of the forearm, which does not occur in carpal tunnel syndrome, and ask about nocturnal exacerbation, which is atypical in pronator teres syndrome. Provocation tests, as detailed above, can help further."
"Enlargement of the nerve seems to be the most sensitive and specific criterion, but what cut-off value for pathological size remains debated; the normal cross-sectional area is given at 9-11 mm2 (0.09-0.11 cm2), but the range of cross-sectional areas deemed pathological is wide. According to one study, a 2 mm2 difference in nerve cross-sectional area between the level of the pronator quadratus and the carpal tunnel has a 99% sensitivity and 100% specificity for carpal tunnel syndrome 9."
"related to increased fluid contents: e.g. pregnancy, obesity, renal failure, hypothyroidism, menopause, oral contraceptive pill, heart failure 22,26"