ABSTRACT
The objective of this study is to determine whether the cross sectional area (CSA) measurement of the median nerve at the wrist differ between carpal tunnel syndrome (CTS) in diabetic patients with and without diabetic polyneuropathy (DPN).This study included 44 patients with type II diabete millitus (DM) with CTS, 32 patients with CTS and DPN, 46 patients with idiopathic CTS, and 42 healthy subjects. Ultrasonographic measurement of the CSA of the median nerve was made at the level of the wrist, together with nerve conduction studies.The median CSA at the wrist was significantly larger in all patient groups compared with healthy subjects. The median nerve CSA was significantly larger in diabetic patients with CTS than patients with idiopathic CTS. The median nerve CSA at wrist was significantly smaller in patients with CTS and DPN compared with diabetic patients with CTS only.The median nerve CSA at the wrist was larger in diabetic patients with CTS than patients with idiopathic CTS and CTS with DPN. Median nerve CSA can help to differentiate between diabetic patients with CTS with and without DPN.
Subject(s)
Carpal Tunnel Syndrome/diagnostic imaging , Diabetes Mellitus, Type 2/complications , Diabetic Neuropathies/complications , Median Nerve/diagnostic imaging , Ultrasonography/methods , Adult , Carpal Tunnel Syndrome/etiology , Carpal Tunnel Syndrome/physiopathology , Diabetic Neuropathies/diagnostic imaging , Diabetic Neuropathies/physiopathology , Female , Humans , Male , Middle Aged , Neural Conduction , Wrist/diagnostic imagingABSTRACT
The objective of this study is to estimate the reference values for the lower limb peripheral nerves in adults.The demographics and physical characteristics of 69 adult healthy volunteers were evaluated and recorded. The estimated reference values and their correlations with the age, weight, height, body mass index (BMI) were evaluated.The cross sectional area reference values were obtained at 5 predetermined sites for 3 important lower limb peripheral nerves. Our CSA values correlated significantly with age, weight, and BMI. The normal reference values for each nerve were as follows: Tibial nerve at the popliteal fossa 19 mmâ±â6.9, tibial nerve at the level of the medial malleolus 12.7 mmâ±â4.5, common peroneal nerve at the popliteal fossa 9.5âmmâ±â4, common peroneal nerve fibular head 8.9 mmâ±â3.2, sural nerve 3.5 mmâ±â1.4.The reference values for the lower limb peripheral nerves were identified. These values could be used for future management of peripheral nerve disorders.
Subject(s)
Lower Extremity/innervation , Peripheral Nerves/anatomy & histology , Peripheral Nerves/diagnostic imaging , Ultrasonography , Adult , Aged , Aging , Body Mass Index , Body Weight , Cross-Sectional Studies , Humans , Lower Extremity/anatomy & histology , Lower Extremity/diagnostic imaging , Middle Aged , Organ Size , Reference Values , Young AdultABSTRACT
The objective of this study is to estimate the reference values for the upper limb peripheral nerves in adults.The demographics and physical characteristics of 69 adult healthy volunteers were evaluated and recorded. In addition, the side to side differences of the estimated reference values and their correlations with the age, weight, height, and body mass index (BMI) were evaluated.Cross-sectional area reference values of the upper limb nerves did not correlate with height; however, they correlated with age, weight, and BMI in some scanned sites.The data obtained in this study could be helpful in future diagnosis of peripheral nerve disorders of the upper limb.
