Coronary sinus fow measured by pulsed Doppler ultrasound is a powerful indicator of coronary blood supply – a pig heart in vitro study.

Zheng, Xiao‐Zhi; Ju, Wu; Hua, Jie

doi:10.11152/mu.2013.2066.182.sin

Cited by 2 publications

(3 citation statements)

References 13 publications

(19 reference statements)

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“…The velocity time integral was determined from digitized Doppler spectral envelopes. Third, the coronary sinus flow per minute (flow) was calculated according to the following formula [6][7][8][9][10][11] : Flow (mL/min) = π × D 2 /4 × velocity time integral × heart rate, where π is the ratio of the circumference of a circle to its diameter, and D is the diameter of the coronary sinus ( Figure 1). The average value of 3 spectral and planimetric envelopes was used.…”

Section: Echocardiographic Measurementsmentioning

confidence: 99%

“…[6][7][8][9][10][11] In this study, we aimed to assess the changes in coronary sinus flow at the onset and follow-up of myocarditis mimicking acute coronary syndrome using TTE.…”

mentioning

confidence: 99%

“…The coronary sinus is the major venous collection system for the myocardial perfusion, 4 ,5 and coronary sinus flow obtained by transthoracic Doppler echocardiography (TTE) or transesophageal Doppler echocardiography has been used for detection of the presence of myocardial ischemia 6 – 11. In this study, we aimed to assess the changes in coronary sinus flow at the onset and follow‐up of myocarditis mimicking acute coronary syndrome using TTE.…”

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confidence: 99%

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Coronary Sinus Flow Is Reduced and Recovered With Time in Viral Myocarditis Mimicking Acute Coronary Syndrome

Zheng

et al. 2016

J of Ultrasound Medicine

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A Transthoracic Doppler Echocardiographic Studyhe complete evaluation of acute myocarditis is very complex and includes the history, physical examination, blood work, echocardiography, coronary angiography, and endomyocardial biopsy. 1,2 The current histopathologic criteria for myocarditis (the Dallas criteria) require an inflammatory infiltrate and associated myocyte necrosis or damage that is not characteristic of an ischemic event. 3 However, the clinical presentation of myocarditis often mimics acute coronary syndrome. Whether abnormal myocardial perfusion is accompanied by myocarditis despite normal coronary angiographic findings remains unknown.The coronary sinus is the major venous collection system for the myocardial perfusion, 4,5 ORIGINAL RESEARCHObjectives-The clinical presentation of myocarditis often mimics acute coronary syndrome. Coronary sinus flow has been used for detection of the presence of myocardial ischemia. Whether myocarditis is associated with changes in coronary sinus flow remains unknown. The aim of this study was to assess coronary sinus flow at the onset and follow-up of myocarditis mimicking acute coronary syndrome using transthoracic Doppler echocardiography (TTE).Methods-Sixty-four patients with clinically diagnosed viral myocarditis mimicking acute coronary syndrome underwent TTE on days 3, 7, 30, 90, 180, and 360 after onset. Coronary sinus flow was compared among different points in time.Results-Compared to healthy participants, all patients with myocarditis had a larger cardiac size, reduced cardiac function, and electrocardiographic and myocardial enzyme abnormalities on days 3 and 7 days (P < .01; P < .05). They later had gradual restoration to normal levels. On days 3 and 7, the coronary sinus flow in patients with myocarditis was extremely lower than that in healthy participants (about one-tenth), although coronary angiography revealed unobstructed arteries. On days 30, 90, 180, and 360, the coronary sinus flow had been increasing; however, it was still far less than that in healthy participants (P < .01).Conclusions-Coronary sinus flow depicted by TTE is reduced but recovers with time in viral myocarditis mimicking acute coronary syndrome, which is a useful indicator in the follow-up of this type of myocarditis.

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Section: Echocardiographic Measurementsmentioning

confidence: 99%

“…[6][7][8][9][10][11] In this study, we aimed to assess the changes in coronary sinus flow at the onset and follow-up of myocarditis mimicking acute coronary syndrome using TTE.…”

mentioning

confidence: 99%

mentioning

confidence: 99%

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Coronary Sinus Flow Is Reduced and Recovered With Time in Viral Myocarditis Mimicking Acute Coronary Syndrome

Zheng

et al. 2016

J of Ultrasound Medicine

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Coronary sinus flow is reduced in methamphetamine abusers: a transthoracic echocardiographic study

Wei

Zheng

Chen

et al. 2018

Int J Cardiovasc Imaging

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To compare the coronary sinus flow among healthy participants, methamphetamine abusers without chest pain and those with chest pain. One hundred and eight methamphetamine abusers: 53 ones without chest pain, 55 ones with chest pain, free of ascertained coronary artery disease, were enrolled in this study. A control group of 50 age-matched male healthy participants was studied for comparison. Standard 2D, flow and tissue Doppler echo with measurements of cardiac morphologic and functional indicators, coronary sinus flow, and inferior vena cava (IVC) ultrasound with measurements of the IVC dimensions and their collapsibility index were performed, respectively. Compared to healthy participants, methamphetamine abusers had higher blood pressure, greater left ventricular mass index and more impaired diastolic function, with preserved cardiac sizes, systolic function and right atrial pressure. Methamphetamine abusers with chest pain had faster heart rate than those without chest pain and healthy participants. Coronary sinus flow was significantly less in methamphetamine abusers than in healthy participants (P < 0.05), and was extremely lower in those with chest pain than in healthy participants (about one-fourth) (P < 0.01). The area under the curve (AUC) of coronary sinus flow was 0.913 (0.864-0.962), and the cutoff value with 221.65 mL/min had sensitivity of 83.4%, specificity of 87.2% and accuracy of 85.2% for differentiating methamphetamine abusers from healthy participants. While the AUC of coronary sinus flow was 0.996 (0.989-1.003), and the cutoff value with 172.59 mL/min had sensitivity of 100%, specificity of 93.3% and accuracy of 96.5% for predicting methamphetamine abusers with chest pain. Coronary sinus flow is significant reduced in methamphetamine abusers, which is maybe a good indicator for indentifying methamphetamine abusers from normal population, and for predicting methamphetamine abusers with chest pain.

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Coronary sinus fow measured by pulsed Doppler ultrasound is a powerful indicator of coronary blood supply – a pig heart in vitro study.

Cited by 2 publications

References 13 publications

Coronary Sinus Flow Is Reduced and Recovered With Time in Viral Myocarditis Mimicking Acute Coronary Syndrome

Coronary Sinus Flow Is Reduced and Recovered With Time in Viral Myocarditis Mimicking Acute Coronary Syndrome

Coronary sinus flow is reduced in methamphetamine abusers: a transthoracic echocardiographic study

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