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Anatomical pitfall of subclavian venepuncture
Annals of the Royal College of Surgeons of England
|July 1, 1978
Summary
Accessory phrenic nerves frequently cross the subclavian vein, posing potential risks during subclavian venepuncture. Anatomical variations in the phrenic nerve require careful consideration in medical procedures.
Area of Science:
- Anatomy
- Surgical Anatomy
Background:
- The phrenic nerve innervates the diaphragm, crucial for respiration.
- Variations in the phrenic nerve's anatomical course can impact surgical procedures.
Purpose of the Study:
- To investigate the incidence of accessory phrenic nerves and other anomalies.
- To identify potential anatomical hazards during subclavian venepuncture.
Main Methods:
- Human cadaveric dissection.
- Detailed anatomical observation and documentation.
Main Results:
- A 45% incidence of accessory phrenic nerves crossing anterior to the subclavian vein was observed.
- Rare anomalies included the phrenic nerve crossing anterior to the subclavian vein and accessory phrenic nerves traversing the vein.
Conclusions:
- Accessory phrenic nerve variations are common and present risks.
- Awareness of these anatomical variations is critical for safe subclavian venepuncture.