Cervical variations of the phrenic nerve

Mendelsohn, Abie H.; DeConde, Adam S.; Lambert, H. Wayne; Dodson, Sean; Daney, Blake T.; Stark, M. Elena; Berke, Gerald S.; Wisco, Jonathan J.

doi:10.1002/lary.21894

Cited by 26 publications

(14 citation statements)

References 14 publications

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“…However, a single phrenic nerve arising from C4 with contributions of C3 and C5 roots is only found in 22% of cadavers. Sometimes there are contributions of only 1 or 2 of these 3 roots . Accessory and secondary phrenic nerves joining the main phrenic nerve before or after entering the thoracic cavity were found in 48.5%.…”

Section: Discussionmentioning

confidence: 99%

Phrenic Nerve Injury After Radiofrequency Denervation of the Cervical Medial Branches

et al. 2015

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Radiofrequency denervation of the cervical medial branches is a possible treatment for chronic cervical facet pain syndrome when conservative management has failed. According to the literature, complications after radiofrequency denervation of the cervical medial branches are rare. We report a case of possible phrenic nerve injury after ipsilateral radiofrequency denervation of the cervical medial branches following a posterolateral approach.

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Section: Discussionmentioning

confidence: 99%

Phrenic Nerve Injury After Radiofrequency Denervation of the Cervical Medial Branches

et al. 2015

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“…The right nerve originated from C5 alone, while in the left, the nerve originated from supraclavicular nerve and C5. Mendelsohn, Deconde, Lambert et al (2011) studied the variations of the phrenic nerve (sample size 110 cadaver). Their study showed the most common pattern of the phrenic nerve consists of phrenic nerve with single C3 and C4 rootles with an immeasurable C5 which was present in 26% of the necks.…”

Section: Discussionmentioning

confidence: 99%

“…It descends between fibrous pericardium and mediastinal parietal pleura, supplying pericardium, pleura and diaphragm (BERGMAN, THOMPSON, AFIFI et al, 1988). The anatomical variations of the phrenic nerve is of great importance due to possible complete paralysis of diaphragm particularly in patients undergoing supraclavicular block (MENDELSOHN, DECONDE, LAMBERT et al, 2011). Furthermore a thorough knowledge of the cervical variations of the phrenic nerve could be worthwhile in restorative surgeries in neck region (BIGELEISEN, 2003).…”

Section: Introductionmentioning

confidence: 99%

Bilateral variations in the roots of origin of the phrenic nerve and absence of fibrous pericardium in an old male cadaver

Ahmadpour

Foghi

2016

J Morphol Sci

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Phrenic nerve provides the major motor supply to diaphragm. Various anatomical variations in the course and distribution of the phrenic nerve have reported before. Here we report a rare bilateral asymmetric variation in the roots of origin of the phrenic nerve and absence of fibrous pericardium in an old male cadaver. Specifically, the right phrenic nerve was arising from the upper trunk of the brachial plexus (C5) and the left side nerve originated from the supraclavicular nerve and a tiny branch from C5. In the same cadaver both sides phrenic nerve were buried in the mediastinal pleura. Another interesting finding was absence of the fibrous pericardium. To the best of our knowledge the presented case showed a very rare variation in the roots of origin of the phrenic nerve accompanied with pericardial anomaly which has been less reported. We think such case is of practical importance during supraclavicular block during anesthesia

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“…Its occurrence in cadaveric studies was thought to be 61.8% to 65% (Kelley 1950). Other authors have reported the incidence to be as low as 3% (Dayal & Ky 2009) with a 5% incidence of cadavers displaying an accessory phrenic nerve (Mendelsohn et al 2011). Figure 4 Anatomical location of the brachial plexus (Gray 1918) In a review by Prates J unior, any nerve that had contributions to the phrenic nerve was classed as an accessory phrenic nerve.…”

Section: Anatomical Variationmentioning

confidence: 99%

Hemidiaphragmatic paralysis: A case report

Rohman

Sutanto

Michla

2018

Journal of Perioperative Practice

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Hemidiaphragmatic paralysis is initially recognised as postoperative respiratory distress. The subsequent sequential management of the patient following arthroscopic shoulder surgery under interscalene block is described. Ultrasound-guided technique is considered to be the safest for interscalene block. Reducing the volume of anaesthetic used reduces its spread to the phrenic nerve and thus reduces the incidence of hemidiaphragmatic paralysis. Furthermore, a reduction in anaesthetic volume has equivalent analgesic efficacy.

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Cervical variations of the phrenic nerve

Abstract: The present study demonstrates the wide variability within the cervical anatomy of the phrenic nerve.

Cited by 26 publications

References 14 publications

Phrenic Nerve Injury After Radiofrequency Denervation of the Cervical Medial Branches

Phrenic Nerve Injury After Radiofrequency Denervation of the Cervical Medial Branches

Bilateral variations in the roots of origin of the phrenic nerve and absence of fibrous pericardium in an old male cadaver

Hemidiaphragmatic paralysis: A case report

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