Incremental Value of Regional Wall Motion Analysis Immediately After Exercise for the Detection of Single-Vessel Coronary Artery Disease

Yoda, Shunichi; Sato, Yuichi; Matsumoto, Naoya; Tani, Shigemasa; Takayama, Tadateru; Nishina, Hidetaka; Uchiyama, Takahisa; Saito, Satoshi

doi:10.1253/circj.69.301

Cited by 33 publications

(38 citation statements)

References 22 publications

(25 reference statements)

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“…Additionally, multislice computed tomography and magnetic resonance imaging can be useful in the evaluation of the coronary anatomy because of their higher image resolution, complex 3-dimensional imaging and non-invasiveness. ECG-gated single-photon emission computed tomography as a non-invasive procedure provides concomitant evaluation of myocardial blood flow and cardiac functions and it is a useful tool in the diagnosis of ischaemia due to coronary anomaly [8,24]. Non-invasive tests are recommended preferably in young individuals having congenital heart disease if there is suspicion of coronary anomalies [8,24].…”

Section: Discussionmentioning

confidence: 99%

Single coronary artery incidence in 215,140 patients undergoing coronary angiography

et al. 2014

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Background:The aim of our study is to determine the incidence of single coronary artery (SCA) (9%) type R-I, 23 (34%) type R-II, 10 (15%) type R-III, 16 (24%) type L-I and 12 (18%) type L-II patients according to the angiographic classification.Conclusions: SCA is rarely seen during routine cardiac catheterisation and its incidence is 0.014-0.066% in angiographic series. In our study, the incidence was shown to be similar to the previous studies. (Folia Morphol 2014; 73, 4: 469-474)

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Section: Discussionmentioning

confidence: 99%

Single coronary artery incidence in 215,140 patients undergoing coronary angiography

et al. 2014

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“…12,13) Thus, although ECG-gated Tc-99m tetrofosmin SPECT might be a high-cost investigation, it can assess not only myocardial ischemia and viability, but also cardiac systolic and diastolic function at the same time. Study limitations: The results from the 14 patients in group C suggested the need for a larger patient population.…”

Section: Assessment Of LV Volume and Systolic Function Obtained By Qgsmentioning

confidence: 99%

Assessment of Left Ventricular Systolic and Diastolic Function Using ECG-Gated Technetium-99m Tetrofosmin Myocardial Perfusion SPECT

Mizunobu¹,

Sakai²,

Sasao³

et al. 2013

Int. Heart J.

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SummaryBecause left ventricular (LV) diastolic dysfunction is frequently the earliest indicator of LV dysfunction in patients with heart failure, the estimation of LV diastolic function is very important. On the other hand, electrocardiography (ECG)-gated technetium (Tc) -99m tetrofosmin single-photon emission computed tomography (SPECT) has been reported to be a useful method for evaluation of LV function. The objective of this study was to examine the usefulness of ECG-gated Tc-99m tetrofosmin SPECT in terms of estimation of cardiac diastolic function. Consecutive 145 patients underwent an ECG-gated Tc-99m tetrofosmin SPECT to estimate systolic and diastolic LV function, and were compared with those evaluated by ultrasound echocardiography (UCG). LV end-diastolic volume, LV end-systolic volume, and LV ejection fraction values obtained by quantitative gated SPECT (QGS) showed significant positive linear correlations with those obtained by UCG. All 145 patients were classified into 3 groups according to diastolic function estimated by UCG. The first-third mean filling rate (1/3 MFR) and peak filling rate (PFR) that revealed the LV diastolic function of the group B (normal systolic function and mild diastolic dysfunction) patients (1.01 ± 0.35, 1.85 ± 0.57) were both significantly lower than those of the group A (normal systolic and diastolic function) patients (1.43 ± 0.37, 2.43 ± 0.56). The 1/3 MFR and PFR of the group C (moderate ~ severe systolic and diastolic dysfunction) patients (0.47 ± 0.34, 0.92 ± 0.62) were also significantly lower than those of the group A and B patients. QGS may be a useful method for the evaluation of cardiac systolic and diastolic function, especially in patients with normal systolic function and diastolic dysfunction. (Int Heart J 2013; 54: 212-215) Key words: Cardiac function, QGS, First-third mean filling rate, Peak filling rate P revious studies have demonstrated that cardiac systolic (left ventricular (LV) ejection fraction (EF)) and diastolic (mitral inflow velocity pattern and/or mitral deceleration time, and/or pulmonary vein inflow velocity pattern) functions evaluated by ultrasound echocardiography (UCG) were predictors of the clinical outcome.1,2) On the other hand, previous studies have also demonstrated that approximately 50% of patients with heart failure present with a normal LV systolic function.3) LV diastolic dysfunction is frequently the earliest indicator of LV dysfunction in patients with heart failure. Therefore, the estimation of LV diastolic function is very important. Recently, electrocardiography (ECG)-gated technetium (Tc)-99m tetrofosmin single-photon emission computed tomography (SPECT) has been reported to be a useful method for evaluation of LV systolic and diastolic functions. 4,5) The purpose of the present study was, therefore, to examine the usefulness of ECG-gated Tc-99m tetrofosmin SPECT in terms of estimation of cardiac function, especially, LV diastolic function. In order to examine this, we compared cardiac systolic and diastolic functions eva...

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“…[20][21][22] However, we found that a post-stress EF depression was not associated with adverse outcome in terms of perioperative cardiac events. This is probably because we used dipyridamole instead of exercise stress, which increases myocardial oxygen consumption and facilitates the likelihood of post-ischemic stunning.…”

Section: Discussionmentioning

confidence: 58%

“…The stress LVEF -rest LVEF value was also calculated to obtain an index reflecting post-ischemic stunning. [20][21][22] The presence of wall motion abnormality was defined as the presence of segmental hypokinesis visually diagnosed through the cine mode display of the QGS program.…”

Section: Myocardial Spect Imagingmentioning

confidence: 99%

Preoperative Risk Stratification With Myocardial Perfusion Imaging in Intermediate and Low-Risk Non-Cardiac Surgery

Hashimoto

Nakahara

Bai

et al. 2007

Circ J

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ardiac risk should be stratified in individual patients who are to undergo surgery, but it is difficult to assess the likelihood of perioperative cardiac events mainly because of complicated interrelationships between clinical risk factors and type of surgery. To overcome this problem, The American College of Cardiology/American Heart Association (ACC/AHA) Task Force published guidelines for perioperative cardiovascular evaluation for noncardiac surgery in 1996 and 2002. 1,2 MethodsThis retrospective cohort study examined data collected from patients referred for preoperative stress myocardial perfusion SPECT before non-cardiac surgery. Written informed consent was obtained from all patients concerning the examination protocol, possible side-effects and the use of SPECT data for research purposes. The form to obtain consent was approved by the institutional committee. Patient PopulationOur database for preoperative risk stratification with myocardial perfusion SPECT was used to identify 2,402 consecutive patients who underwent preoperative dipyridamole stress SPECT between January 1997 and October 2005. All 1,339 patients in the database meeting the following criteria were selected to participate in the current study: scheduled non-cardiac surgery of intermediate or low risk, and having intermediate or minor clinical risk factors. The classifications of operation risk and clinical risk factors were based on the ACC/AHA Guidelines. 1,2 Operation was cancelled or deferred after SPECT imaging in 119 patients, and 1,220 patients underwent surgery. The types of surgery and clinical risk of the 1,220 patients are indicated in Table 1 and demoCirc J 2007; 71: 1395 -1400 (Received January 15, 2007 revised manuscript received June 5, 2007; accepted June 6, 2007 1395 -1400)

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Incremental Value of Regional Wall Motion Analysis Immediately After Exercise for the Detection of Single-Vessel Coronary Artery Disease

Cited by 33 publications

References 22 publications

Single coronary artery incidence in 215,140 patients undergoing coronary angiography

Single coronary artery incidence in 215,140 patients undergoing coronary angiography

Assessment of Left Ventricular Systolic and Diastolic Function Using ECG-Gated Technetium-99m Tetrofosmin Myocardial Perfusion SPECT

Preoperative Risk Stratification With Myocardial Perfusion Imaging in Intermediate and Low-Risk Non-Cardiac Surgery

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