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Cervico-thoracic ganglion: its clinical implications
1School of Anatomical Sciences, Faculty of Health Sciences, University of the Witwatersrand, Parktown 2193, Johannesburg, South Africa. pathernp@anatomy.wits.ac.za
Clinical Anatomy (New York, N.Y.)
|December 1, 2005
Summary
The cervicothoracic ganglion (CTG) frequently forms from fused inferior cervical and first thoracic ganglia. Understanding its anatomy is crucial for surgeons performing sympathectomy to prevent complications like Horner's syndrome.
Area of Science:
- Anatomy
- Surgical Anatomy
- Thoracic Surgery
Background:
- Lesions of the cervicothoracic ganglion (CTG) disrupt sympathetic innervation to the head, neck, upper limb, and thoracic viscera.
- Accurate CTG anatomy is vital for sympathectomy procedures, especially when conventional treatments fail.
Purpose of the Study:
- To document the incidence and anatomical distribution of the CTG.
- To inform surgical techniques and avoid complications like Horner's syndrome and cardiac arrhythmias.
Main Methods:
- Dissection of 89 sympathetic chains from 48 cadavers.
- Documentation of CTG formation, morphology, and branching patterns.
Main Results:
- The inferior cervical ganglion and first thoracic ganglion fused to form the CTG in 84.3% of cases.
- Three CTG shapes (spindle, dumbbell, inverted "L") were identified, with dumbbell and inverted "L" shapes showing a distinct "waist".
- A high incidence of double cardiac sympathetic nerves originating from the CTG was observed.
Conclusions:
- The CTG is a common fusion of the inferior cervical and first thoracic ganglia.
- Surgeons performing sympathectomy for intractable anginal pain should target specific rami while preserving the ganglion.
- Detailed anatomical knowledge of the CTG is essential for advancing endoscopic surgical techniques.