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Table 6 Different clamping methods based on the selection of aneurysmal neck subtypes

From: The classification of intracranial aneurysm neck: a single center research experience

Type Clamping adverse changes
simple parallel interlocking mixed
Ia (16/24) (6/24) (2/24) 0  
Ib (17/21) (1/21) (3/21) 0  
IIa (11/15) (1/15) (2/15) (1/15) 1
IIb (4/19) (7/19) (3/19) (5/19) 1
IIIa (1/15) (5/15) (3/15) (6/15)  
IIIb (1/14) (3/14) (5/14) (5/14)  
  1. 1. The numbers in parentheses indicate that the number of aneurysms is divided by the subtype to classify the total number of aneurysms
  2. 2. Through statistical analysis, the total variation of X - 98.5, V 15, P < 0.005; linear regression - component X 74.8, v 1, P < 0.005; deviation from linear regression - component X 23.7, V 14, P 0.025–0.05. The linear regression component and the deviation of linear regression all have statistical significance. It can be considered that there is a correlation between the type of tumor neck and the way of clipping and it is a linear relationship