Cardiology

[Association between the morphology of the implanted atrial septal defect occluding umbrella and postoperative headache].




[Association between the morphology of the implanted atrial septal defect occluding umbrella and postoperative headache].

Zhonghua Xin Xue Guan Bing Za Zhi. 2020 Jun 24;48(6):495-499

Authors: Huang Y, Wang JM, Wang QG, Zhang DZ, Zhu XY

Abstract
Objective: To explore whether the atrial septal defect(ASD) size, the type of occlusion umbrella selected, and the morphological changes after release of occlusion umbrella affect the headache symptoms of ASD patients after operation. Methods: A total of 567 ASD ptients, who underwent successful implantion with a single occlude from January 2014 to December 2017 in General Hospital of Northern Theater Command were enrolled. The patients were divided into symptomatic group and asymptomatic group according to the presence or absence of headache symptoms after occlusion. X-ray catheter calibration method was used to measure the diameter(d), thickness(L), maximum diameter of the left umbrella surface after release(D2) and the value of i (i = D2/L). Risk factors related to headache were analyzed by multivariate logistic regression analysis. linear regression analysis was used to detect the relationship between the type of occluder umbrella and ASD diameter in asymptomatic group. Results: A total of 567 patients with one occluder umbrella were included, and 148(26.1%) cases were male. The age was (34.4±19.4) years old. The follow-up time was (12.7±2.8) months. There were 51 cases in the symptomatic group and 516 cases in the asymptomatic group. In 29 patients who were treated by extending the course or increasing the dose of aspirin, the symptoms disappeared or improved. There was no significant difference in the maximum ASD diameter (TTE measured) and the size of occluder between the symptomatic group and asymptomatic group(both P>0.05). The value of d ((19.80±6.67)mm vs.(17.40±7.28) mm, P=0.041) D2 ((43.29±7.41)mm vs. (39.20±9.59)mm, P=0.013)and L((13.06±3.72)mm vs. (10.19±2.90) mm,P=0.025) of the symptomatic group were all higher than that of the asymptomatic group,while the i value was smaller((3.54±0.88)vs.(3.99±0.93),P=0.010). The results of multivariate logistic regression analysis showed that the value of L(OR=1.286,95%CI 1.176-1.406, P=0.002) and the value of i(OR=0.916,95%CI 0.867-0.968, P<0.001) were independent factors of headache symptoms in patients after ASD occlusion, while the value of d and the value of D2 were not independent factors (both P>0.05). Linear equations obtained from asymptomatic patients showed the size of occluder =1.121×the maximum ASD diameter of TTE measured +6.414. Conclusions: There is no correlation between the symptoms with the expanded diameter and the maximum diameter of left umbrella's surface after released. The Postoperative discomfort symptoms is significantly correlated to the thickness of the occluder and the value of i. It is suggested that headache could be induced by the oversized occlude, thus choosing the appropriate size of the occluder is essential to reduce the occurrence of postoperative headache symptoms. Increasing the size of occluder because of worrying about the abscission and removal of the occlude is unreasonable. The antiplatelet therapy should also be strengthened to reduce the occurrence of symptoms and improve the symptoms of the patients if the occluder's size is too large. This regression equation (The size of occluder =1.121 × the maximum ASD diameter of TTE measured +6.414) could be used as a reference for the suitable selection of ASD occluder.

PMID: 32842260 [PubMed - in process]

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