A Variation of Phrenic Nerve: Case Report and Review Una Variaci車n del Nervio Fr谷nico: Reporte de Caso y Revisi車n

作者：Prakash; Latha V Prabhu; Jwalaram Kumar; Sampath Madhyastha

来源：International Journal of Morphology, 2006.

• Nervio frenico
• Cuello
• Variacion anatomica
• Phrenic nerve
• Neck
• Anatomical variations

During routine dissection in the Department of Anatomy following anatomical variations of phrenic nerve were observed on right side in the neck region of a middle aged cadaver. The phrenic nerve in its early course close to its origin was giving a communicating branch to C5 root of brachial plexus and at the level of the root of neck just before entering the thorax, the phrenic nerve was placed anterior to the subclavian vein. This unique case of phrenic nerve variation gains tremendous importance in context of subclavian vein cannulation, implanted venous access portals, and supraclavicular nerve block for regional anesthesia Durante una disecci車n de rutina en el Departamento de Anatom赤a, observamos una variaci車n anat車mica del nervio fr谷nico en el lado derecho del cuello de un cad芍ver de mediana edad. El nervio fr谷nico cercano pr車ximo a su origen dio un ramo comunicante para la ra赤z C5 del plexo braquial. A nivel de la ra赤z del cuello, justo antes de entrar al t車rax, el nervio fr谷nico se colocaba anterior a la vena subclavia. Este caso 迆nico de variaci車n del nervio fr谷nico adquiere una gran importancia en caso de canulaci車n de la vena subclavia, implantes venosos accesos portales, y bloqueo del nervio supraclavicular por anestesia regional