VENOUS DRAINAGE OF FREE FLAPS FOLLOWING RADICAL NECK DISSECTION

Oral tumours are a common malignancy, with smoking and alcohol the principal aetiological factors. Squamous cell carcinoma is the commonest pathology, most frequently affecting the anterior tongue and floor of the mouth. Surgery is the mainstay of T1/T2 tumour management, and tracheostomy may be required. Sentinel node biopsy is an effective staging procedure; however, there is a high rate of occult nodal metastasis which may warrant elective supraomohyoid neck dissection. Macroscopic nodal disease requires modified radical neck dissection, preferably with adjuvant chemoradiotherapy. For unresectable tumours, radical external beam radiotherapy with cisplatin should be given. Reconstruction of soft tissue involves a range of skin grafts and local, regional, and free flaps, while bony reconstruction includes obturators and non-vascularized and vascularized bone grafts. Postoperative rehabilitation aims to restore speech, mastication, swallow, and dentition. Three-year survival is greater than 90% for stage I/II disease, with excellent functional outcomes.

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Color Doppler Ultrasound Evaluation of Internal Jugular Vein Before Radical Neck Dissection

Journal of Medical Imaging and Health Informatics ◽

10.1166/jmihi.2019.2619 ◽

2019 ◽

Vol 9 (2) ◽

pp. 371-375

Author(s):

Zhiyong Chen ◽

Binshan Zha ◽

Yan Li ◽

Yongchao Chen

Keyword(s):

Blood Flow ◽

Neck Dissection ◽

Color Doppler ◽

Radical Neck Dissection ◽

Venous Drainage ◽

Color Doppler Ultrasound ◽

Sitting Position ◽

Section Area ◽

Cerebral Venous Drainage ◽

The Right

Objective: There is a great controversy about whether the internal jugular vein (IJV) should be retained during radical neck dissection. In this study, the right and left IJV under different body position were observed by color Doppler ultrasound, in order to provide a experimental basis for the preservation of IJV in neck dissections. Methods: A total of 40 patients with thyroid cancer undergoing radical neck dissection were examined in this study. The hemodynamic data such as section area, velocity, and volume of blood flow were measured by Doppler in supine and sitting position under quiet breath. Results: In supine position, the cross sectional area, the velocity and the blood flow volume in the right side were 58%, 23% and 91% more than left side respectively. The right side advantage, symmetrical, and left side advantage of IJV was in 65%, 25%, and 10% of patients. The blood flow of bilateral IJV was 74% of total cerebral outflow. The IJV predominate, balanced type, and no-IJV predominate cerebral venous drainage was in 73%, 23% and 5% of patients. In sitting position, the section area, the velocity and the blood flow volume in the right side were 29%, 35% and 56% more than left side respectively. The right side advantage, symmetrical, and left side advantage of IJV was in 45%, 45%, and 10% of patients. The blood flow of bilateral IJV was 23% of total cerebral outflow. The balanced type and no-IJV predominate cerebral venous drainage was in 23% and 78% of patients. Conclusions: There are side advantage of IJV. With quiet breathing, IJV is not the main pathway of cerebral venous drainage in sitting position. The preoperative ultrasound is useful to design the individualized surgical approach for the radical neck dissections.

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