{'fraction_non_alphanumeric': 0.023758099352051837, 'fraction_numerical': 0.0064794816414686825, 'mean_word_length': 5.619047619047619, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
[Stent-assisted angioplasty in treatment of symptomatic intracranial artery stenosis].

OBJECTIVE
To investigate the indications, safety and effectiveness of intracranial deployment of stents in treatment of systematic intracranial artery stenosis.


METHODS
Stent-assisted angioplasty was performed upon 7 consecutive patients with symptoms of intracranial artery stenosis unresponsive to anticoagulant therapy and antiplatelet therapy. The lesions involved the middle cerebral artery in 3 cases, distal end of internal carotid artery in one case, basilar artery in one case, and intracranial section of vertebral artery in 2 cases. Short-term clinical and angiographic data were obtained.


RESULTS
Symptoms of procedure-related intracranial hemorrhage and intracranial haematoma developed later were found in one patient. Emergency craniotomy was performed 5 hours after the stenosis-assisted angioplasty. The remaining patients experienced alleviation of symptoms without transient ischemic attack and apoplexy during the short-term follow-up. Angiography showed that the stenosis degree reduced from 83% to 5%. 0 - 3 months of follow-up by transcranial Doppler showed good patency of stented lesions.


CONCLUSION
Stent-assisted angioplasty effectively treats atherosclerotic intracranial stenosis lesions. Long-term follow-up and further clinical/technical research are still needed.