Contribution of power Doppler and gray-scale ultrasound of the median nerve in evaluation of carpal tunnel syndrome

Mohamed, Rania E.; Amin, Mohamed A.; Aboelsafa, Ashraf A.; Elsayed, Salwa E.

doi:10.1016/j.ejrnm.2013.10.004

Cited by 10 publications

(26 citation statements)

References 35 publications

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“…These findings are in accordance with studies by Baiee et al., 24 Chan et al., 25 Elnady et al., 26 and Mohamed et al. 27 However, there was no relationship with the h-CSA, DRUJ-CSA, flattening ratio of the median nerve at the pisiform, or flexor retinaculum thickness at the hook of the hamate, in contrast to the results reported by Sernik et al. 28 and El Miedany et al.…”

Section: Discussionsupporting

confidence: 91%

The value of sonographic quantitative parameters in the diagnosis of carpal tunnel syndrome in the Vietnamese population

Nguyen

et al. 2021

J Int Med Res

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Objective To examine the value of ultrasound (US) in the diagnosis of carpal tunnel syndrome (CTS) in the Vietnamese population. Methods This prospective cross-sectional study involved 42 wrists of 25 patients with idiopathic CTS evaluated by US. In addition, 38 wrists of 22 healthy volunteers were included as the control group. Results Significant differences in the median nerve cross-sectional area (CSA) at different levels were found between patients with CTS and controls. Using a cut-off value of 9.5 mm2 for the median nerve CSA at the pisiform (p-CSA), US had a sensitivity and specificity of 95.2% and 97.4%, respectively, for the diagnosis of CTS. Area under the curve analysis revealed a sensitivity and specificity of 100% and 95.4%, respectively, for the prediction of severe CTS using a p-CSA of >15.5 mm2. Conclusions The median nerve CSA is a highly accurate parameter in the diagnosis of CTS. We recommend using a p-CSA of >9.5 mm2 as a diagnostic criterion for CTS and a p-CSA of >15.5 mm2 as a marker for severe CTS in the Vietnamese population. Research Registry number: 7261

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Section: Discussionsupporting

confidence: 91%

The value of sonographic quantitative parameters in the diagnosis of carpal tunnel syndrome in the Vietnamese population

Nguyen

et al. 2021

J Int Med Res

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“…Carpal tunnel syndrome (CTS) is the commonest entrapment neuropathy and accounts for approximately 90% of all entrapment neuropathies with prevalence of approximately 3-6% of adults in the general population [5]. The reason as to why CTS is more common in diabetes is unknown and an early diagnosis is essential to prevent permanent nerve damage and functional squeals [7].…”

Section: Discussionmentioning

confidence: 99%

“…The high prevalence of CTS among diabetic patients might be as a result of repeated undetected trauma, metabolic changes, accumulation of fluid or edema within the confined space of the carpal tunnel and /or diabetic cheiroarthropathy [4]. Electrodiagnostic studies (nerve conduction studies and electromyography) are useful in diagnosis of Carpal tunnel and its differentiation from cervical radiculopathy, diabetes or peripheral neuropathy [5]. Nerve conduction studies alone do not provide spatial information regarding the nerve or its attendant abnormalities [6].…”

Section: Introductionmentioning

confidence: 99%

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Carpal Tunnel Syndrome in Patients with and without Diabetes Mellitus in Upper Egypt: The Impact of Electrophysiological and Ultrasonographical Studies

Tony

Selim

et al. 2017

J Arthritis

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Abstractactually scant. This study aimed to correlate the diagnostic accuracy of ultrasonography with electrodiagnosis in both DM and non-DM CTS patients. Patients and Methods: Thirty six non-diabetic patients and twenty five diabetic patients with CTS were assessed. All patients were subjected to electrophysiological assessment of wrists and grayscale ultrasonography (US).Results: High mean cross sectional area of median nerve (CSA) on ultrasonography was detected with nonsignificant difference between both groups. A non-significant difference for flattening ratio was found between two groups. There was a highly significant positive correlation between electrodiagnosis and ultrasonography in diabetic patients. Conclusion:The CSA of median nerve is larger in CTS hands in both DM and non-DM patients. The combination of electrophysiology and ultrasonography provides diagnostic effective tools across the entire spectrum of CTS in diabetic and non-diabetic patients.

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“…Technically, intraoperative detection of the nerve trunk NAP is the most reliable means to determine the quality of the nerve suture site. 6 Lu et al 7…”

Section: Introductionmentioning

confidence: 99%

Clinical Application of Ultrasound-guided Electrode Placement and Detection of Nerve Action Potential

Han¹,

2022

J Neurol Surg A Cent Eur Neurosurg

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Objective: To explore a minimally invasive detection method to evaluate the early-stage quality of nerve suture by combining ultrasound and nerve electrophysiological examinations. Methods: Ten patients with median and/or ulnar nerve injuries undergoing nerve suture surgery were recruited. Ultrasound examination found that the nerve injury was sutured and continual nerve suture was observed. Electrophysiological examination detected no nerve function. Stimulating electrode and recording electrode were located beside the nerve guided by ultrasound after nerve suture. Nerve action potential (NAP) was detected with these electrodes under ultrasound. Surgical exploration was conducted and NAP detection was performed during surgery. The amplitude, latency and wave shape of NAP between ultrasound-guided and intraoperative detection were statistically compared. Results: Among 10 patients, 3 patients were diagnosed with median nerve injury, 2 cases of ulnar nerve injury and 5 cases of median nerve complicated with ulnar nerve injuries. NAP could not be detected under ultrasound or during surgery in 3 median nerves from 3 cases and 2 ulnar nerves from 2 cases. NAP was detected in 10 nerves from the remaining 5 cases. The detection results of NAP under ultrasound and during surgical exploration showed consistent performance in testing the conduction of nerve suture. Wilcoxon's signed-rank test indicated no significant difference in the amplitude and latency detected under ultrasound and during surgical exploration. The negative-phase waves were equally detected under ultrasound and during surgical exploration. Conclusion: Ultrasound-guided detection of NAP can substitute surgery and serve as a minimally invasive approach to evaluate the function of nerve suture site.

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Contribution of power Doppler and gray-scale ultrasound of the median nerve in evaluation of carpal tunnel syndrome

Cited by 10 publications

References 35 publications

The value of sonographic quantitative parameters in the diagnosis of carpal tunnel syndrome in the Vietnamese population

The value of sonographic quantitative parameters in the diagnosis of carpal tunnel syndrome in the Vietnamese population

Carpal Tunnel Syndrome in Patients with and without Diabetes Mellitus in Upper Egypt: The Impact of Electrophysiological and Ultrasonographical Studies

Clinical Application of Ultrasound-guided Electrode Placement and Detection of Nerve Action Potential

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