Differential age‐, gender‐, and side‐dependency of vagus, spinal accessory, and phrenic nerve calibers detected with precise ultrasonography measures

Walter, Uwe; Tsiberidou, Panagiota

doi:10.1002/mus.26412

Cited by 35 publications

(53 citation statements)

References 31 publications

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“…When analyzing the ultrasonographic parameters based on clinical features, statistically significant age‐related CSA differences were detected in the DBUN at the HH level but not in the distal ulnar nerve. This may be explained by an electron‐microscopic morphometric study that detected a significant age‐related loss of myelinated nerve fibers, specifically in small myelinated fibers . In the present study, there was no difference in the CSAs of the DBUN according to other clinical factors such as sex, BMI, or anthropometric variables (Table ).…”

Section: Discussioncontrasting

confidence: 42%

Sonoanatomy of the deep branch of the ulnar nerve

Choi

Yoon

2020

Muscle and Nerve

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Introduction This study evaluated the sonoanatomy of the deep motor branch of the ulnar nerve (DBUN) using high‐resolution ultrasonography (HRUS). Methods In 60 wrists of 30 healthy adults, the gross course, cross‐sectional area (CSA), and diameter of the DBUN were observed by HRUS (frequency band 3–16 MHz). Its course was assessed by using the distance from anatomical landmarks and depth from the skin. Results The DBUN was found in all subjects with HRUS, and it branched off from the ulnar nerve before reaching the hamate bone. At the hook‐of‐hamate level, the mean DBUN CSA was 1.5 ± 0.2 mm2, and the mean diameter was 1.5 ± 0.2 mm. The mean distance from the hamate hook to the DBUN was 5.4 ± 1.0 mm, and the mean depth from the skin was 8.6 ± 1.6 mm. Discussion Sonoanatomy of the DBUN obtained from HRUS may be useful in detecting or preventing DBUN lesions.

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Section: Discussioncontrasting

confidence: 42%

Sonoanatomy of the deep branch of the ulnar nerve

Choi

Yoon

2020

Muscle and Nerve

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“…[1][2][3][4][5][7][8][9][10] These differences may be partly attributed to different ethnicities and different methods of assessing CSA. 14 The mean values in the United States are larger (range 5-5.88 mm 2 ), 1,3,7 while those in Europe and Asia are smaller (range 1.6-2.7 mm 2 ). 2,4,5,8-10 Our CSA reference values are closer to those of Korea and Japan, and smaller than those of the United States.…”

Section: Discussionmentioning

confidence: 91%

Vagus Nerve Ultrasound in Chronic Inflammatory Demyelinating Polyradiculoneuropathy and Charcot‐Marie‐Tooth Disease Type 1A

Niu

Zhang

Ding

et al. 2020

Journal of Neuroimaging

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BACKGROUND AND PURPOSE: Both clinical autonomic dysfunction and involvement of autonomic nerves have been reported in a range of peripheral nerve disorders. We employed nerve ultrasound to assess the size of the vagus nerve in a serial study of patients with chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) and Charcot-Marie-Tooth type 1B (CMT1B) as compared to healthy controls (HCs). We correlated these findings with involvement of the median and ulnar nerves. METHODS: Forty-three patients with CIDP, 8 with CMT1A, and 105 HC were prospectively recruited. The cross-sectional areas (CSAs) of the vagus, median, and ulnar nerves were measured bilaterally. The alteration of CSA of those nerves was followed longitudinally in CIDP. RESULTS: The median (range) CSA of the vagus nerve was 2 (1-28) mm 2 in CIDP, 3 (2-6) mm 2 in CMT1A, and 1 (1-2) mm 2 in HC. The vagus nerve CSA was positively correlated with the maximum CSA of median/ulnar nerve in CIDP and CMT1A. The alteration in vagus nerve CSA was positively correlated with the alteration in mean median/ulnar nerve CSA in CIDP during follow-up. CONCLUSIONS: The vagus nerve was involved to a similar extent as the median and ulnar nerves in CIDP and CMT1A, although no symptoms or signs of vagus nerve involvement were found. Further study should be performed to explore the clinical relevance of vagus nerve enlargement in these disorders.

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“…The vagus nerve innervates the portion of the esophageal breath, while the intercostal nerves innervate the paracostal and intercostal muscles, which allows better movement of the coasts during the act of breathing [26,27]. The adaptations that the vagus nerve undergoes in the presence of ageing are likely to be related to the thicker (somatomotor) vagal fibers, which thin out [28]. Further research is needed to obtain more information on the mechanistic pathways that result in vagal nerve degeneration.…”

Section: Vagus Nerve and Intercostal Nerves In Ageingmentioning

confidence: 99%