Relationship between the increase of fibrous and fatty in atrioventricular node and narrowing of the atrioventricular node artery / 法医学杂志

ABSTRACT

OBJECTIVE@#To explore relationship between increase of fibrous and fatty in atrioventricular node (AVN) and narrowing of the AVN artery. To analyze the cause of pathological fibrosis and fatty infiltration in AVN.@*METHODS@#One hundred and nineteen cases of sudden cardiac death determined by autopsy were selected and the histological sections were examined with Image-pro plus software to calculate the AVN area, AVN artery inside-diameter, AVN artery lumen area(LA) , AVN artery perimeter area(PA), fibrous area and fatty area. All cases were divided into two groups narrowing of artery group and normal control group. The changes of the PA/LA value and the fibrous and fatty contents were evaluated.@*RESULTS@#The PA/LA value is the highest in 21-40 age group. The difference of the fatty contents and total interstitial tissue was statistical significance in the two groups under 40 years of age.@*CONCLUSION@#There is some relationship between the narrowing of the AVN artery and the increase of interstitial contents in AVN.