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JOURNAL OF PRACTICAL ELECTROCARDIOLOGY
 
2022 Vol.31 Issue.2
Published 2022-04-28
74
2022 Vol. 31 (2): 74-75 [Abstract] ( 23 ) [HTML 1KB] [ PDF 52388KB] ( 997 )
75
2022 Vol. 31 (2): 75-75 [Abstract] ( 34 ) [HTML 1KB] [ PDF 2875KB] ( 436 )
77
2022 Vol. 31 (2): 77-77 [Abstract] ( 26 ) [HTML 1KB] [ PDF 312KB] ( 482 )
77  Chinese expert consensus on primary care of ventricular arrhythmias
Chinese Society of Pacing and Electrophysiology, Chinese Society of Arrhythmias
2022 Vol. 31 (2): 77-98 [Abstract] ( 42 ) [HTML 1KB] [ PDF 3162KB] ( 920 )
99 Value of ECG waterfall chart in  diagnosing sinus rhythm complicated by competitive arrhythmias
ZHANG Fangfang, JING Yongming, LI Shifeng, LI Zhongjian
Objective  To explore the value of electrocardiogram(ECG) waterfall chart in the analysis of sinus rhythm complicating competitive arrhythmias. Methods  We retrospectively analyzed the changes of ECG waterfall charts of ambulatory electrocardiography among 41 patients with sinus rhythm complicating competitive arrhythmias, and summarized their characteristics. Results  During sinus rhythm, ECG waterfall chart is continuously and stably manifested by P, QRS, and T peak bands with the same color. In the occurrence of competitive arrhythmias, the P, QRS and T peak bands change in color, or the P peak band drifts. The characteristics of the waterfall chart of sinus rhythm complicating atrial autonomic rhythm are as follows: P peak band is split while R and T peak bands remain the same. The characteristics of the waterfall chart of sinus rhythm complicating junctional autonomic rhythm are as follows: PR interval changes, P peak band splits and drifts (even drifting to the bottom of the R peak band) while the R and T peak bands remain unchanged. The characteristics of the waterfall chart of sinus rhythm complicating ventricular autonomic rhythm are as follows: P, QRS, and T peak bands synchronously change colors. Conclusion  When competitive arrhythmias and sinus rhythm are intertwined together, we can accurately grasp the onset time and duration of competitive arrhythmias by selecting the lead with obvious changes of PQRST complex, and observe the changes of P, QRS and T peak bands in the ECG waterfall chart.
2022 Vol. 31 (2): 99-102 [Abstract] ( 57 ) [HTML 1KB] [ PDF 15945KB] ( 551 )
103 Analysis of application effect of remote ECG system in primary hospitals
FENG Xianghong1, FANG Sheng2, LI Na1, JIANG Hui1, YANG Dongdong1, ZHANG Yuan1, YU Yuan1
Objective　To discuss the application value and developing prospect of remote ECG system in primary hospitals. Methods 　We randomly selected 1 000 cases as research objects from 386 500 ECGs recorded and uploaded via remote ECG network system from the general hospital, branch hospitals, community hospitals, and township health clinics. They were divided into different groups according to data source, ECG characteristics and age before making comparative analysis. Results　Among the 1 000 ECGs, 533 cases are from the general hospital while 467 come from primary hospitals such as branch hospitals, community hospitals and township health clinics. A total of 191 (19. 1%) cases of tachyarrhythmia, 103 (10. 3%) cases of bradyarrhythmia, 334 (33. 4%) cases of ST changes and 52(5. 2%) cases of pacing ECGs are found. The incidence of ECG abnormalities in the general hospital is higher than that in primary hospitals (P <0. 01); the incidence of ECG abnormalities varies significantly among different age groups (P <0. 05). Conclusion　Remote ECG network is convenient for diagnosis, which can significantly save the medical time, and win time for diagnosing and treating critical and severe patients. It is worthy of being promoted in clinical practice.
2022 Vol. 31 (2): 103-107 [Abstract] ( 51 ) [HTML 1KB] [ PDF 3249KB] ( 677 )
108 Comparison of clinical characteristics between two types of post-capillary pulmonary hypertension
LOU Yuxuan, HUA Yang, TANG Yuan, SUN Jinyu, SHI Jing, ZHANG Haifeng　
Objective　To analyze the clinical characteristics of patients with isolated post-capillary pulmonary hypertension (IPC-PH) and combined post- and pre-capillary pulmonary hypertension (CPC-PH), and to provide references for the clinical management of post-capillary pulmonary hypertension. Methods 　A total of 163 patients
diagnosed with post-capillary pulmonary hypertension by Swan-Ganz floating catheter were selected, and divided into IPC-PH and CPC-PH groups according to their hemodynamic characteristics. General data, and examination results of echocardiography and Swan-Ganz floating catheter were collected and compared. Results　The serum uric acid, pulmonary artery systolic and diastolic blood pressure, and mean pulmonary artery pressure in the CPC-PH group are significantly higher than those in the IPC-PH group, while the body weight, triglyceride, aortic root diameter, cardiac output, stroke volume and cardiac index in the CPC-PH group are significantly lower than those in the IPC-PH group (P <0. 05). Conclusion　CPC-PH can be distinguished from IPC-PH by blood uric acid, pulmonary artery systolic and diastolic blood pressure, mean pulmonary artery pressure, cardiac output, stroke volume, cardiac index, etc.
2022 Vol. 31 (2): 108-112 [Abstract] ( 52 ) [HTML 1KB] [ PDF 897KB] ( 638 )
113 Influence of low atrial septal pacing on newly-onset atrial fibrillation in patients with sick sinus syndrome complicating inter-atrial block
SHEN Yuanjie1, WANG Yuesong1, ZHANG Xianlin2, SHAO Xuwu1, DONG Xuebin1,WANG Xuezhong1　
Objective　To discuss the influence of low atrial septal pacing (LASP) on newly-onset atrial fibrillation in patients with sick sinus syndrome (SSS) complicating inter-atrial block. Methods　Fifty-eight inpatients with SSS complicating inter-atrial block were selected, and divided into LASP group (n =23) and right atrial appendage
pacing (RAAP) group (n =35) according to the implantation sites of atrial leads. The changes of P wave duration and P wave dispersion before and after the operation, and changes of atrial electrode parameters during the operation, one month and 3, 6 and 12 months after the operation, and the occurrence of pacing related complications and newly-onset atrial fibrillation were observed in the two groups. Results 　(ⅰ) There is no significant difference in atrial electrode parameters and the incidence of pacing related complications between LASP group and RAAP group (P >0. 05). (ⅱ) In the LASP group, the duration of P wave is significantly shorter than that in the RAAP group[(117.7 ±7. 0) ms vs. (135. 1 ±8. 9) ms, P <0. 05] after pacing while P wave dispersion is also significantly lower than that in the RAAP group [(23. 9 ±4. 5) ms vs. (31. 5 ±5. 5) ms, P <0. 05] after pacing. (ⅲ) The incidence of postoperative atrial fibrillation in the LASP group is significantly lower than that in the RAAP group(0 vs. 20. 0%, P <0. 05). Conclusion　LASP could reduce the incidence of postoperative atrial fibrillation in patients with SSS complicating inter-atrial block.
2022 Vol. 31 (2): 113-117 [Abstract] ( 69 ) [HTML 1KB] [ PDF 2008KB] ( 529 )
118 Clinical analysis and prognosis of 5 patients with de Winter syndrome
DAI Zhiyin, JIANG Yu, YUAN Wei,LI Weidong, LI Xuan
Objective　To investigate the treatment strategy and prognosis of de Winter syndrome. Methods    Retrospective analysis was performed on 261 patients with acute anterior wall myocardial infarction admitted in our hospital, and those with ECG changes of de Winter syndrome were selected to analyze the coronary angiographic results, treatment and prognosis. Results　Five patients (accounting for 1. 9%) with acute anterior wall myocardial infarction consistent with ECG changes of de Winter syndrome are screened out, including 4 males and one female. The culprit vessel of the 5 patients are left anterior descending branch or diagonal branch, and all successfully treated by primary percutaneous coronary intervention. They are followed up 6 months after the surgery, and one patient suffers from postoperative angina pectoris while no cardiac insufficiency or sudden cardiac death is found.Conclusion　As an equivalence of ST-segment elevation myocardial infarction in the criticality, de Winter syndrome requires for a timely and effective opening of the culprit vessels to realize a favourable prognosis.
2022 Vol. 31 (2): 118-121 [Abstract] ( 589 ) [HTML 1KB] [ PDF 4911KB] ( 510 )
122 Clinical characteristics of essential hypertension patients with premature ventricular contraction
XU Ying1,LUO Zhaolin1, WANG Chunzhi1, HE Yun2, ZHANG Wanying1, TAN Junfang1, KUANG Yeyingzi1, CHANG Yuanyuan1
Objective　To observe the characteristics of essential hypertension(EH) patients with premature ventricular contraction ( PVC), and provide references for clinical treatment. Methods 　Two hundred EH patients who had undergone Holter and ambulatory blood pressure monitoring during hospitalization were selected. The relationship between PVC, and 24 h blood pressure, changes of blood pressure circadian rhythm, left ventricular hypertrophy, myocardial ischemia and cardiac function was observed. Results 　(ⅰ) There is no statistical difference of 24 h blood pressure between EH patients with and without PVC. In the patients with Lown classification grade 3 and above, the 24 h average systolic blood pressure (SBP), and day and night average SBP are all higher than those in the hypertensives below grade 3. (ⅱ) Among the patients with myocardial ischemia or left ventricular hypertrophy, the total incidence of PVC, and the incidence of PVC Lown classification grading 3 and above are both higher than those in the patients without myocardial ischemia or left ventricular hypertrophy.(ⅲ) Among the patients complicating heart failure, the total incidence of PVC, and the incidence of PVC Lown classification grading 3 and above are both higher than those in the patients without heart failure. In the heart failure patients with NYHA cardiac function classification of Ⅲ and above, the total incidence of PVC, and the incidence of PVC Lown classification grading 3 and above are both higher than those in the patients below NYHA classification of Ⅲ. Conclusion In EH patients, weakened or disappeared circadian rhythm of blood pressure, and complication of left ventricular hypertrophy or myocardial ischemia and heart failure, the incidence and complexity of PVC increase.
2022 Vol. 31 (2): 122-125 [Abstract] ( 39 ) [HTML 1KB] [ PDF 896KB] ( 574 )
126 Effect of large-conductance Ca2 + -activated K + channel on arrhythmias　
QIAN Lingling, LIU Xiaoyu, WANG Ruxing
Arrhythmia is one of the common and frequently occurring cardiovascular diseases, and its pathogenesis is closely related to ion channels. K+ channels play important roles in the electrical excitation of cardiomyocytes. The effect of large-conductance Ca2 + -activated K+ channel (BKCa channel) on arrhythmias has become a new direction of research in recent years, and has attracted extensive attention. This paper reviews the biological characteristics of BKCa channel, its distribution in heart tissues and the possible mechanisms of its effect on arrhythmias.
2022 Vol. 31 (2): 126-129 [Abstract] ( 56 ) [HTML 1KB] [ PDF 897KB] ( 549 )
130 Research progress of cardiac electrical changes in patients with essential hypertension
RUAN Bingxin1,HUANG Juxiang2, NIE Liantao2, LI Zhongjian2, LI Shifeng2 　
Essential hypertension (EH) can cause damage to target organs and cardiac electrical changes in an early phase. These changes mainly include P-wave changes of atrial depolarization, QRS complex changes of ventricular depolarization, change of the total time of ventricular depolarization and repolarization, ST-T changes, arrhythmia, and so on. By ECG examination cardiac electrical changes can be directly understood and observed. This paper reviews the research progress of cardiac electrical changes in EH patients at home and abroad in the past over 20 years, in order to help clinicians to identify and diagnose the heart damage caused by EH early by using electrocardiographic techniques, and so as to provide scientific basis for the diagnosis, medication and condition evaluation of EH.
2022 Vol. 31 (2): 130-136 [Abstract] ( 70 ) [HTML 1KB] [ PDF 1083KB] ( 652 )
137 Research progress in clinical application of heart rate variability
CAO Wenjing1,2, ZHANG Jinping1,2,MA Jianxin1,2, ZHU Binghua2　
Heart rate variability (HRV) is one of the most commonly used non-invasive methods for evaluating cardiac autonomic nerve activity. The decrease of HRV is an independent risk factor for predicting the death of patients with coronary heart disease, and it is also clinically valuable in evaluating essential hypertension, diabetes,
sleep apnea syndrome, depression, corona virus disease 2019 and other diseases. This paper systematically describes the research background, regulatory mechanism, analytical methods and research progress in clinical application of HRV, and puts forward the research direction in the future.
2022 Vol. 31 (2): 137-143 [Abstract] ( 65 ) [HTML 1KB] [ PDF 1021KB] ( 1310 )
144
2022 Vol. 31 (2): 144-146 [Abstract] ( 48 ) [HTML 1KB] [ PDF 4724KB] ( 627 )
147
2022 Vol. 31 (2): 147-150 [Abstract] ( 46 ) [HTML 1KB] [ PDF 7744KB] ( 517 )
151
2022 Vol. 31 (2): 151-152 [Abstract] ( 52 ) [HTML 1KB] [ PDF 7341KB] ( 582 )
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