Research Progress on Pathological Fibrosis of Sinoatrial Node.
10.12116/j.issn.1004-5619.2020.400820
- Author:
Wei WANG
1
;
Shi Lin ZHANG
1
;
Fang Fang LIU
1
;
Ting FANG
1
;
Si Dou LIU
1
;
Chun Ping WANG
2
;
Yu XING
3
;
Yun LIU
1
;
Bo JIN
1
Author Information
1. Department of Forensic Medicine, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China.
2. Shehong Public Security Bureau, Shehong 629200, Sichuan Province, China.
3. Department of Forensic Medicine, Chongqing Medical University, Chongqing 400016, China.
- Publication Type:Review
- Keywords:
forensic pathology;
sinuatrial node;
fibrosis;
sudden death;
review
- MeSH:
Arrhythmias, Cardiac;
Fibrosis;
Heart Rate;
Humans;
Sinoatrial Node
- From:
Journal of Forensic Medicine
2021;37(2):225-232
- CountryChina
- Language:English
-
Abstract:
Human heart rhythm is mainly regulated and controlled by the sinoatrial node. Fibrosis plays an important regulating role in adjusting the structural and functional integrity of the sinoatrial node pacemaker complex. In physiological state, the fibrosis degree of sinoatrial node is negatively correlated with heart rate, positively correlated with age and heart size, and can maintain a relatively stable heart rate. Pathological fibrosis of sinoatrial node can induce various types of arrhythmias which can result in sudden death. Determination of the mechanisms related to sinoatrial node pathological fibrosis could provide a target for clinical treatment of sinoatrial node fibrosis and diagnosis basis for forensic pathologists. This paper reviews the main mechanism of sinoatrial node pathological fibrosis, including abnormal activation of cardiac fibroblast cells in sinoatrial node, hyperplasia of epicardial adipose tissue, calcium clock disorder, artery stenosis, etc., introduces the test methods, diagnostic criteria as well as its role in sudden cardiac death and discusses the potential application, to provide reference for relevant research and application.
