PMID- 36693396 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230706 IS - 2234-8565 (Print) IS - 2287-3139 (Electronic) IS - 2234-8565 (Linking) VI - 25 IP - 2 DP - 2023 Jun TI - Discontinuation of antiplatelet therapy after stent-assisted coil embolization for cerebral aneurysms. PG - 132-142 LID - 10.7461/jcen.2023.E2022.10.009 [doi] AB - OBJECTIVE: Dual antiplatelet therapy (DAPT) is usually temporarily used after stent-assisted coil embolization (SACE), and is commonly converted to mono antiplatelet therapy (MAPT) for indefinitely. In this study, we aimed to find the possibility of discontinuing MAPT, and to determine the proper period of DAPT use. METHODS: We used the Standard Sample Cohort DB dataset from the National Health Insurance Sharing Service. Among approximately 1 million people in the dataset, SACE was performed in 214 patients whose data this study analyzed. The relationship between discontinuation of antiplatelet therapy and intracranial hemorrhage or cerebral infarction was analyzed using multiple logistic regression, considering all confounding variables. The survival rate according to the continuation of antiplatelet therapy was obtained using Kaplan-Meier analysis, and the difference in survival rate according to the continuation of antiplatelet therapy was verified using the log-rank test. The hazard ratio according to continuation of antiplatelet therapy was obtained using the Cox proportional hazards model. The analysis was conducted by applying the same statistical method to the duration of DAPT use. RESULTS: Among 214 patients who underwent SACE, 50, 159 and five patients continued, discontinued and did not use antiplatelet therapy (except at the time of procedure), respectively. In multiple logistic regression analysis, discontinuation of antiplatelet agents (including aspirin) and the period of DAPT use did not affect the occurrence of intracranial hemorrhage or cerebral infarction, considering various confounding factors. In the survival analysis according to the continuation of antiplatelet agents, patients who continued to use antiplatelet agents had a higher survival rate than those in other groups (p=0.00). The survival rate was higher in the rest of the group than in the group that received DAPT for three months (p=0.00). CONCLUSIONS: Continuation of antiplatelet agents or the period of DAPT use did not affect the occurrence of intracranial hemorrhage or cerebral infarction. Considering the survival rate, it would be better to maintain at least three months of antiplatelet therapy and it might be recommended to continue DAPT use for 12 months. FAU - Kim, Tae Gon AU - Kim TG AD - Department of Neurosurgery, CHA Bundang Medical Center, CHA University, School of Medicine, Seongnam, Korea. LA - eng GR - Kones-2020-04/Korean NeuroEndovascular Society/ PT - Journal Article DEP - 20230120 PL - Korea (South) TA - J Cerebrovasc Endovasc Neurosurg JT - Journal of cerebrovascular and endovascular neurosurgery JID - 101589154 PMC - PMC10318236 OTO - NOTNLM OT - Aneurysm OT - Antiplatelet therapy OT - Big data OT - Embolization OT - Statistical data analysis OT - Stent EDAT- 2023/01/25 06:00 MHDA- 2023/01/25 06:01 PMCR- 2023/06/01 CRDT- 2023/01/24 18:50 PHST- 2022/10/24 00:00 [received] PHST- 2022/12/20 00:00 [accepted] PHST- 2023/01/25 06:01 [medline] PHST- 2023/01/25 06:00 [pubmed] PHST- 2023/01/24 18:50 [entrez] PHST- 2023/06/01 00:00 [pmc-release] AID - jcen.2023.E2022.10.009 [pii] AID - jcen-2023-e2022-10-009 [pii] AID - 10.7461/jcen.2023.E2022.10.009 [doi] PST - ppublish SO - J Cerebrovasc Endovasc Neurosurg. 2023 Jun;25(2):132-142. doi: 10.7461/jcen.2023.E2022.10.009. Epub 2023 Jan 20.