PMID- 34993084
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220429
IS  - 2223-4292 (Print)
IS  - 2223-4306 (Electronic)
IS  - 2223-4306 (Linking)
VI  - 12
IP  - 1
DP  - 2022 Jan
TI  - The different recanalization rates of posterior communicating artery aneurysms 
      with a fetal posterior communicating artery and anterior communicating artery 
      aneurysms with a variation of the unilateral A1 segment.
PG  - 354-365
LID - 10.21037/qims-21-17 [doi]
AB  - BACKGROUND: Posterior communicating artery (PcomA) aneurysms are more likely to 
      recanalize than anterior communicating artery (AcomA) aneurysms. However, it is 
      still unclear whether the recanalization rate of these aneurysms is a result of 
      involvement from the fetal posterior cerebral artery (fPCA) in PcomA aneurysms 
      and variation of the unilateral A1 segment in AcomA aneurysms. The purpose of 
      this study is to retrospectively evaluate the different recanalization rates 
      between PcomA aneurysms with fPCA and AcomA aneurysms with a variation of the 
      unilateral A1 segment. METHODS: We retrospectively collected information 
      regarding 214 patients, each with communicating segment aneurysms between January 
      2013 and January 2020. Follow-up documentation on clinical and imaging data was 
      comparatively analyzed between variant types, and recanalization rates of the 
      variant and normal types were analyzed by stratification. RESULTS: Of the 84 
      variant-type aneurysms (PcomA with fPCA and AcomA with a variation of the 
      unilateral A1 segment, 41/43), complete recanalization occurred in 23 patients 
      (27.4%), and it was significantly more likely to occur in PcomA aneurysms with 
      fPCA (39.1%) than in AcomA aneurysms with a variation of the unilateral A1 
      segment (16.3%). Stent-assisted coil embolization (SACE) has been shown to reduce 
      recanalization (OR =0.092, 95% CI: 0.011 to 0.790, P=0.03). Additionally, variant 
      types and the normal type (non-fetal, 106, and bilateral A1 symmetry, 24) have 
      different odds ratios (OR) of recanalization (P=0.04), and the OR of the variant 
      subtypes was significant, unlike the normal type (P=0.49). CONCLUSIONS: This 
      study suggests that PcomA aneurysms with fPCA are more likely to recanalize than 
      AcomA aneurysms with a variation of the unilateral A1 segment.
CI  - 2022 Quantitative Imaging in Medicine and Surgery. All rights reserved.
FAU - Zhang, Yang
AU  - Zhang Y
AD  - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong 
      University Affiliated Sixth People's Hospital, Shanghai, China.
FAU - Gu, Yi
AU  - Gu Y
AD  - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong 
      University Affiliated Sixth People's Hospital, Shanghai, China.
FAU - He, Yu
AU  - He Y
AD  - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong 
      University Affiliated Sixth People's Hospital, Shanghai, China.
FAU - Tang, Chaojie
AU  - Tang C
AD  - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong 
      University Affiliated Sixth People's Hospital, Shanghai, China.
FAU - Gu, Binxian
AU  - Gu B
AD  - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong 
      University Affiliated Sixth People's Hospital, Shanghai, China.
FAU - Li, Yongdong
AU  - Li Y
AD  - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong 
      University Affiliated Sixth People's Hospital, Shanghai, China.
FAU - Wang, Wu
AU  - Wang W
AD  - Institute of Diagnostic and Interventional Radiology, Shanghai Jiao Tong 
      University Affiliated Sixth People's Hospital, Shanghai, China.
LA  - eng
PT  - Journal Article
PL  - China
TA  - Quant Imaging Med Surg
JT  - Quantitative imaging in medicine and surgery
JID - 101577942
PMC - PMC8666777
OTO - NOTNLM
OT  - Posterior communicating artery (PcomA) aneurysms
OT  - anterior communicating artery aneurysms (AcomA aneurysms)
OT  - recanalization
OT  - stent
OT  - variation
COIS- Conflicts of Interest: All authors have completed the ICMJE uniform disclosure 
      form (available at https://dx.doi.org/10.21037/qims-21-17). The authors have no 
      conflicts of interest to declare.
EDAT- 2022/01/08 06:00
MHDA- 2022/01/08 06:01
PMCR- 2022/01/01
CRDT- 2022/01/07 06:27
PHST- 2021/01/06 00:00 [received]
PHST- 2021/06/18 00:00 [accepted]
PHST- 2022/01/07 06:27 [entrez]
PHST- 2022/01/08 06:00 [pubmed]
PHST- 2022/01/08 06:01 [medline]
PHST- 2022/01/01 00:00 [pmc-release]
AID - qims-12-01-354 [pii]
AID - 10.21037/qims-21-17 [doi]
PST - ppublish
SO  - Quant Imaging Med Surg. 2022 Jan;12(1):354-365. doi: 10.21037/qims-21-17.