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Search Results: 1 - 10 of 2730 matches for " nerve plexus "
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Minko Minkov,Maria Vankova,Radoslav Minkov,Stefaniya Terzieva
Journal of IMAB : Annual Proceeding (Scientific Papers) , 2012,
Abstract: A hemidiaphragmatic paresis is one of the most frequently observed complications following the supraclavicular anesthesia of the brachial plexus with interscalene approach. In patients, crucially dependant on adequate diaphragmatic function, hemidiaphragmatic paresis may provoke acute respiratory disturbances. The aim of this study was to analyze the anatomical features the brachial plexus with regard of the anesthesia of specific areas of the shoulder and the upper limb.A dissection of the cervical and the brachial plexuses was done in human cadavers. We established that in some cases the phrenic nerve and the accessory phrenic nerve arise from the superior trunk of the brachial plexus. This type of anatomical arrangement significantly increases the risk of hemidiaphragmatic paresis during supraclavicular anesthesia with interscalene approach because the anesthetic tends to invade the supraclavicular space.
Multiple variations of the nerves arising from the lumbar plexus
Uzmansel D,Aktekin M,Kara A
Neuroanatomy , 2006,
Abstract: Multiple variations of the nerves arising from the lumbar plexus were found on the right side of a 35-year-old female cadaver. These were the accessory lateral femoral cutaneous nerve (aLFCN) arising from the femoral nerve, double ilioinguinal nerves and an accessory nerve branch joining to the genital branch of the genitofemoral nerve. The possible clinical problems related to the variations of these nerves were discussed.
Absence of musculocutaneous nerve in the left axilla
Virupaxi RD,Shirol VS,Desai SP,Ravishankar MV
International Journal of Anatomical Variations , 2009,
Abstract: Variations of the arrangement and distribution of the lateral cord and its branches in the infraclavicular part of the brachial plexus are common in one or both axillae. These variations are important to the surgeons, neurologists, anesthetists and anatomists during surgery and dissection in the region of axilla. The present case report describes the absence of musculocutaneous nerve in the infraclavicular part of left brachial plexus, observed during routine dissection of a 40-year-old male Indian cadaver. On the right side usual origin and course of musculocutaneous nerve was seen. The clinical importances of these variations are discussed.
Origen y Trayecto Anómalos del Nervio Musculocutáneo
Carlotto,Jorge Roberto Marcante; Ambros,Luciana Estacia; Dal Vesco,Juarez Ant?nio; Reichert,Paulo Roberto;
International Journal of Morphology , 2009, DOI: 10.4067/S0717-95022009000200033
Abstract: the musculocutaneous is originated from the lateral fascicle in the brachial plexus and its fibers emerge mainly from the anterior nervous roots c5 and c6. during the routine dissection of the brachial plexus in a formolized corpse, its origin variation and passage was found. the nerve was originated on the lateral face of the median nerve and after its origin, crossed anteriorly to the coracobrachial muscle, without perforating it, from medial to lateral, proximal to distal, after to branch off. the anatomical variations found contribute to the anatomy study and they serve as alert for the surgeon in interventions in the axillary's cavity and in the previous store of the arm, preventing, thus, operational complications.
The importance of the preoperative clinical parameters and the intraoperative electrophysiological monitoring in brachial plexus surgery
Flores, Leandro Pretto;
Arquivos de Neuro-Psiquiatria , 2011, DOI: 10.1590/S0004-282X2011000500015
Abstract: objective: the study aims to demonstrate the impact of some preoperative clinical parameters on the functional outcome of patients sustaining brachial plexus injuries, and to trace some commentaries about the use of intraoperative monitoring techniques. method: a retrospective study one hundred cases of brachial plexus surgery. the analysis regarding postoperative outcomes was performed by comparing the average of the final result of the surgery for each studied cohort. results: direct electrical stimulation was used in all patients, emg in 59%, seps in 37% and evoked naps in 19% of the cases. patients in whom the motor function of the hand was totally or partially preserved before surgery, and those in whom surgery was delayed less than 6 months demonstrated significant (p<0.05) better outcomes. conclusion: the preoperative parameters associated to favorable outcomes in reconstruction of the brachial plexus are a good post-traumatic status of the hand and a short interval between injury and surgery.
Formation of median nerve by three roots: A case report
N Satyanarayana,CK Reddy,P Sunitha,N Jayasri,V Nitin,G Praveen,R Guha,AK Datta,MM Shaik
Journal of College of Medical Sciences-Nepal , 2010, DOI: 10.3126/jcmsn.v6i1.3602
Abstract: During routine dissection of an adult male cadaver in the Department of Anatomy, College of Medical Sciences, Bharatpur, Nepal, the right median nerve was found to be formed by three roots. The finding was noted after thorough and meticulous dissection of the upper limbs of both sides (axilla, arm, forearm and palm). Out of the three roots forming the anomalous median nerve, two were from lateral cord and one from medial cord of brachial plexus. However, the distribution of the anomalous median nerve was normal in arm, forearm and palm. The arterial pattern in the arm (axillary and brachial arteries) was also normal. Key words : Cadaver; median nerve; brachial plexus DOI: 10.3126/jcmsn.v6i1.3602 Journal of College of Medical Sciences-Nepal, 2010, Vol. 6, No. 1, 47-50
Variations in branching pattern of Brachial Plexus: A cadaveric study
Dr. Apurva P Darji,Dr. Hiteshkumar M Chauhan,Dr. Hardik Khatri,Dr. Swati Aterkar
International Journal of Biomedical and Advance Research , 2013, DOI: 10.7439/ijbar.v4i3.304
Abstract: Brachial plexus is formed by ventral primary rami of C5 to T1. The aim of the present study is to study the variations in branching pattern of the brachial plexus. In present study 100 brachial plexuses from 50 well embalmed Human cadavers were studied in anatomy department, B.J. Medical College, Ahmedabad. Out of 100 upper limbs, three upper limbs show multiple communications between Medial & Lateral root of median nerve. In one cadaver, we found that median nerve was formed by two lateral roots and one medial root on right side. Communication between musculocutaneous nerve and median nerve found were in 6 cases. In such cases, the communicating branch run from the musculocutaneus nerve to median nerve, after piercing the coracobrachialis muscle. In one cadaver, on right side, two variations were found. One variation was that upper and lower subscapular nerves were arising from axillary nerve. Second variation was that there was communication between radial nerve and axillary nerve. It is concluded that knowledge of such variations is essential in evaluation of unexplained sensory and motor loss after trauma and surgical interventions to upper limb. Knowledge of these is important to anatomists, radiologists, anesthesiologists and surgeons.
Unusual variation in musculocutaneous nerves
C Bhattarai,PP Poudel
Kathmandu University Medical Journal , 2009, DOI: 10.3126/kumj.v7i4.2763
Abstract: Background: Variations in origin, course, branching pattern, termination and connections of the musculocutaneous nerve in the arm are not as uncommon as was once thought. Variational study of nerve in Nepalese is very less and can be of surigical-clinical importance. This opinion led us to performing this study. Objectives: The aim of this study was to a study in Nepalese which could be important for clinical investigation and the surgical treatment of peripheral nerve injury. Materials and methods: This study was carried out in Manipal College of medical sciences (MCOMS). Dissection of formalised 16 cadavers (n=32 upper limbs) were carried out using normal dissection kit with the help of standard dissection manual in two and half years. Results: The study revealed the variation in course, branching pattern and termination of musculocutaneous nerve in 6.25% of cases unilaterally on the right side. No statistically significant differences by gender and side were observed. Conclusion: This present study provides the evidence of variation of musculocutaneous nerve in Nepalese. The knowledge of the anatomical variations of the peripheral nerve system can help explain an incomprehensible clinical sign. Key words: Musculocutaneous nerve; Median nerve; Brachial plexus; Peripheral nerve repair. DOI: 10.3126/kumj.v7i4.2763 Kathmandu University Medical Journal (2009) Vol.7, No.4 Issue 28, 408-410
Formation of median nerve without the medial root of medial cord and associated variations of the brachial plexus
Bhanu SP,Sankar DK,Susan PJ
International Journal of Anatomical Variations , 2010,
Abstract: The anatomical variations in the formation, course and termination of brachial plexus are well documented and have clinical significance to surgeons, neurologists and anatomists. The present case report describes the unusual origin of median nerve, arising directly from the lateral cord without the union of lateral and medial roots of brachial plexus. A communicating branch existed between the ulnar nerve and anterior division of middle trunk. The lateral pectoral nerve was arising from anterior divisions of upper and middle trunks as two separate branches instead from lateral cord. The branches then joined together to form the lateral pectoral nerve. The medial cord instead of its five terminal branches, had only three branches, the ulnar nerve, medial pectoral nerve and a single trunk for the medial cutaneous nerve of arm and forearm which got separated at the middle of the arm. The variations of the lateral cord and its branches make it a complicated clinical and surgical approach which is discussed with the developmental background.
Doble Inervación del Músculo Braquial en la Población Chilena
Molina,Claudio; Uribe,Cristián; Heras,álvaro; Astorga,Cristián; Lemus,Jorge; Rodríguez,Alberto;
International Journal of Morphology , 2011, DOI: 10.4067/S0717-95022011000400023
Abstract: the dual innervation of the brachialis muscle by the musculocutaneos nerve and branches from the radial nerve has been described by some anatomical texts and several scientific papers; however, there is no consensus about the frequency with which this occurs. in this study we proposed to check the presence and determine the frequency of the contribution of radial nerve in the innervations of the brachialis muscle. in this study we used 30 upper limbs fixed in fixative and conservative solution. dissection of the brachial region was carried out, checking the branches that penetrated the muscle and taking samples of these branches to histological study. it was possible to observe the presence of branches of the radial nerve innervating the brachialis muscle in a 90% of the sample used in this study; the motor point of these branches was always located in the distal third of this muscle. according with the results of this study, the dual innervations of the brachial muscles observed by classical authors and reported by several investigations is also present in a high percentage of the sample. these findings can serve as reference for surgical procedures, electromyographic and ultrasound studies.
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