paper is done, but not published.

The Predictive Value of Clinical Data on Perioperative and Postoperative Risk Events in Patients With Head and Neck Artery Stenosis

Inclusion Criteria:

• (1) All enrolled patients were diagnosed with clear head and neck artery stenosis and a risk event after head and neck revascularization;

  (2) Location of lesion: origin of internal carotid artery, bifurcation of internal and external carotid arteries;

  (3) Patients with symptomatic head and neck artery stenosis and dangerous events after head and neck blood flow reconstruction, and with a degree of stenosis ≥ 70% on non-invasive examination or stenosis ≥ 50% found on angiography;

  (4) Asymptomatic head and neck artery stenosis and risk events after head and neck revascularization, with a degree of stenosis ≥ 70% on non-invasive examination or stenosis ≥ 60% found on angiography;

  (5) Asymptomatic head and neck artery stenosis and dangerous events after head and neck blood flow reconstruction, with a non-invasive examination of stenosis degree less than 70%, but angiography or other examinations indicate that the stenosis lesion is in an unstable state;

  (6) Symptomatic head and neck artery stenosis and risk events after head and neck revascularization, non-invasive examination of head and neck artery stenosis and risk event degree after head and neck revascularization at 50% to 69%

Exclusion Criteria:

• (1) Patients with poor overall condition and intolerance to general anesthesia;

  (2) Patients with mental illness or severe mental illness;

  (3) Severe respiratory system diseases;

  (4) Pregnant and lactating women;

  (5) Participating in another clinical study;

  (6) Patients with advanced tumors or those who are expected to die within one year;

The target population of the study is adults aged 18-90 who have been diagnosed with head and neck artery stenosis and risk events after head and neck revascularization and seek medical treatment in neurosurgery departments of tertiary comprehensive hospitals.