scholarly journals Pseudoaneurysm with Median Nerve Injury Caused by Right Radial Artery Puncture: A Case Report

2020 ◽  
Author(s):  
Zengmig Xue
Keyword(s):  
Median Nerve ◽  
Nerve Injury ◽  
Radial Artery ◽  
Severe Pain ◽  
Index Finger ◽  
Chest Tightness ◽  
Treatment Measures ◽  
The Right ◽  
Median Nerve Injury

Background: Pseudoaneurysm with median nerve injury is a serious complication of radial artery puncture. It is very important to summarize the prevention and treatment experience of this complication through case discussion.Case report: A 66-year-old woman was admitted to the hospital because of ‘‘paroxysmal chest tightness and suffocationfor 5 days.” Coronary angiography was performed. During insertion of the arterial sheath, the patient experiencedsevere pain in the right forearm, which radiated to the palm. The puncture sheath did not return blood after the sheathcore was withdrawn. The sheath was removed and local compression was used to stop bleeding. There was no obvious bleeding at the puncture point, and the compression was removed 6 hours after the procedure. Local swelling and increased tension were seen in the right forearm. At the 1-week follow-up she exhibited swelling, high local tension, small blisters, and bluish-purple skin of the right forearm, with an acceptable right radial artery pulsation. She had severe pain in the affected limb, which radiated to the thumb, index finger, and middle finger.Case discussion: We discuss the causes of and treatment measures for pseudoaneurysm with median nerve injury caused by radial artery puncture.

scholarly journals Evaluation of Functional Recovery in Rats After Median Nerve Resection and Autograft Repair Using Computerized Gait Analysis

2021 ◽  
Vol 14 ◽  
Author(s):  
Johannes C. Heinzel ◽  
Viola Oberhauser ◽  
Claudia Keibl ◽  
Nicole Swiadek ◽  
Gregor Längle ◽  
...  
Keyword(s):  
Gait Analysis ◽  
Nerve Regeneration ◽  
Median Nerve ◽  
Nerve Injury ◽  
Functional Recovery ◽  
Duty Cycle ◽  
Evaluation Method ◽  
Additional Tool ◽  
The Right ◽  
Median Nerve Injury

Computerized gait analysis is a common evaluation method in rat models of hind limb nerve injuries, but its use remains unpublished in models of segmental nerve injury of the forelimb. It was the aim of this work to investigate if computerized gait analysis is a feasible evaluation method in a rat model of segmental median nerve injury and autograft repair. Ten male Lewis rats underwent 7-mm resection of the right median nerve with immediate autograft repair. The left median nerve was resected without repair and served as an internal control. Animals were assessed for 12 weeks after surgery via CatWalk (CW) gait analysis every 2 weeks. Evaluation of motor recovery by means of the grasping test was performed weekly while electrophysiological measurements were performed at the end of the observation period. CW data were correlated with grasping strength at each post-operative time point. CW data were also correlated with electrophysiology using linear regression analysis. Principal component analysis was performed to identify clusters of outcome metrics. Recovery of motor function was observable 4 weeks after surgery, but grasping strength was significantly reduced (p < 0.01) compared to baseline values until post-operative week 6. In terms of sensory recovery, the pain-related parameter Duty Cycle showed significant (p < 0.05) recovery starting from post-operative week 8. The Print Area of the right paw was significantly (p < 0.05) increased compared to the left side starting from post-operative week 10. Various parameters of gait correlated significantly (p < 0.05) with mean and maximum grasping strength. However, only Stand Index showed a significant correlation with compound muscle action potential (CMAP) amplitude (p < 0.05). With this work, we prove that computerized gait analysis is a valid and feasible method to evaluate functional recovery after autograft repair of the rat median nerve. We were able to identify parameters such as Print Area, Duty Cycle, and Stand Index, which allow assessment of nerve regeneration. The course of these parameters following nerve resection without repair was also assessed. Additionally, external paw rotation was identified as a valid parameter to evaluate motor reinnervation. In summary, computerized gait analysis is a valuable additional tool to study nerve regeneration in rats with median nerve injury.

Acute Median Nerve Injury due to Migration of a Kirschner Wire

1998 ◽  
Vol 23 (1) ◽  
pp. 112-113 ◽  
Author(s):  
I-M. JOU ◽  
K-A. LAI
Keyword(s):  
Median Nerve ◽  
Nerve Injury ◽  
Kirschner Wire ◽  
Orthopaedic Implants ◽  
K Wires ◽  
Median Nerve Injury

Migration of orthopaedic implants such as K-wires is not unusual, but migration due to an improperly constructed brace has not been reported. This report describes such a mechanism in a case complicated by acute median nerve injury.

scholarly journals Proximal Median Neuropathy Following Anterior Shoulder Dislocation: The Use of Magnetic Resonance Neurography

2020 ◽  
Vol 11 (1) ◽  
pp. 75-79
Author(s):  
Matthew Silsby ◽  
Alasdair Robertson ◽  
Con Yiannikas
Keyword(s):  
Differential Diagnosis ◽  
Magnetic Resonance ◽  
Median Nerve ◽  
Nerve Injury ◽  
Shoulder Dislocation ◽  
Peripheral Nerve Injury ◽  
Anterior Shoulder Dislocation ◽  
Magnetic Resonance Neurography ◽  
Median Nerve Injury ◽  
Median Neuropathy

Proximal median nerve injury is an uncommon consequence of anterior shoulder dislocation, especially occurring in isolation of other upper limb peripheral nerve injury. We report the case of an 82-year-old woman with a median nerve injury as detected by clinical and neurophysiological examination following a fall and anterior shoulder dislocation. Magnetic resonance neurography confirmed the diagnosis, but also detected asymptomatic brachial plexus and ulnar nerve involvement. Management was non-operative and there has been some improvement over several months. Our case expands the differential diagnosis for proximal median neuropathy and discusses the utility of neurography in cases of neural injury.

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