scholarly journals Prevalence and predictors of slow coronary flow phenomenon in Kermanshah province

2021 ◽  
Vol 13 (1) ◽  
pp. 37-42
Author(s):  
Mohammad Rouzbahani ◽  
Saeid Farajolahi ◽  
Nafiseh Montazeri ◽  
Parisa Janjani ◽  
Nahid Salehi ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Coronary Flow ◽  
Study Data ◽  
Fisher Exact Test ◽  
Circumflex Artery ◽  
Serum Triglycerides ◽  
Cross Sectional ◽  
Flow Phenomenon ◽  
Slow Coronary Flow ◽  
Left Circumflex Artery

Introduction: This study was conducted to investigate prevalence and predictors of slow coronary flow phenomenon (SCF) phenomenon. Methods: This cross-sectional study was performed at Imam Ali Cardiovascular Hospital affiliated with the Kermanshah University of Medical Sciences (KUMS), Kermanshah province, Iran. From March 2017 to March 2019, all the patients who underwent coronary angiography were enrolled in this study. Data were obtained using a checklist developed based on the study’s aims. Independent samples t tests and chi- square test (or Fisher exact test) were used to assess the differences between subgroups. Multiple logistic regression model was applied to evaluate independent predictors of SCF phenomenon. Results: In this study, 172 (1.43%) patients with SCF phenomenon were identified. Patients with SCF were more likely to be obese (27.58±3.28 vs. 24.12±3.26, P<0.001), hyperlipidemic (44.2 vs. 31.7, P<0.001), hypertensive (53.5 vs. 39.1, P<0.001), and smoker (37.2 vs. 27.2, P=0.006). Mean ejection fraction (EF) (51.91±6.33 vs. 55.15±9.64, P<0.001) was significantly lower in the patients with SCF compared to the healthy controls with normal epicardial coronary arteries. Mean level of serum triglycerides (162.26±45.94 vs. 145.29±35.62, P<0.001) was significantly higher in the patients with SCF. Left anterior descending artery was the most common involved coronary artery (n = 159, 92.4%), followed by left circumflex artery (n = 50, 29.1%) and right coronary artery (n = 47, 27.4%). Body mass index (BMI) (OR 1.78, 95% CI 1.04-2.15, P<0.001) and hypertension (OR 1.59, CI 1.30-5.67, P=0.003) were independent predictors of SCF phenomenon. Conclusion: The prevalence of SCF in our study was not different from the most other previous reports. BMI and hypertension independently predicted the presence of SCF phenomenon.

scholarly journals Comparable Periprocedural Outcomes of Percutaneous Coronary Intervention in Male and Female Patients with Type C Lesions

2017 ◽  
Vol 02 (03) ◽  
pp. 021-024
Author(s):  
Narapureddy Reddy ◽  
Nemani Lalita
Keyword(s):  
Percutaneous Coronary Intervention ◽  
Coronary Artery ◽  
Success Rate ◽  
Coronary Intervention ◽  
Circumflex Artery ◽  
Serum Triglycerides ◽  
Left Circumflex Artery ◽  
Percutaneous Coronary ◽  
Type C ◽  
Male Patients

Background Percutaneous coronary intervention (PCI) in type C lesions has low success and has high procedural risk. We aimed at studying the outcomes of PCI in patients with type C lesions. Material and Methods Total 180 patients with type C lesions who underwent PCI from January 2007 to December 2014 were taken into study and analyzed. Results Of 180 patients, 141(78.3%) were males and 39 (21.7%) were females. Mean hemoglobin concentration, mean serum triglycerides, and mean estimated glomerular filtration rate were significantly lower in females compared with males. Seventy-seven (42.8%) patients had lesions in right coronary artery, 67 (37.2%) had lesions in left anterior descending coronary artery, 31 (17.2%) had lesions in left circumflex artery, and 5 (2.8%) had left main coronary artery disease. Complex lesions were common in males. Chronic total occlusion (CTO) was found in 140 cases and other than CTO of type C lesions in 40 patients. Predilatation was done in 169 (93.9%) patients. Successful PCI was done in 157 (87.2%) patients. Lesion could not be crossed in 11 (6.1%) patients. Only plain old balloon angioplasty could be done in 9 (5%) patients. Other complications occurred in 3 (1.67%) patients. There was no difference between female and male patients in requiring predilatation or crossing the lesion or in not being able to deliver the stent. Conclusion PCI success rate among patients with type C lesions was 87.2% with low-complication rate in the present era. There was no difference in between female and male patients in success rate or complications.

scholarly journals Effect of PCI on QTC Dispersion in Patients with Angina

2020 ◽  
Vol 16 (1) ◽  
pp. 33-39
Author(s):  
Md Shafiqul Islam ◽  
Shekhar Kumar Mondal ◽  
Jafrin Jahan ◽  
Minhaj Arefin ◽  
Nishat Ahmed ◽  
...  
Keyword(s):  
Heart Disease ◽  
Coronary Artery ◽  
Beta Blockers ◽  
Qt Dispersion ◽  
Circumflex Artery ◽  
Cross Sectional ◽  
Noninvasive Test ◽  
Left Circumflex Artery ◽  
Qtc Dispersion ◽  
Before And After

Background:‘Coronary heart disease (CHD) is now the leading cause of death worldwide; it is on the rise and has become a true pandemic that respects no borders. For the diagnosis of coronary artery disease, the 12 leads electrocardiogram (ECG) is the most readily available noninvasive test by which, in addition of diagnosis, localizing and estimating the size of myocardial ischemia can be determined. Abnormally high QT dispersion has been correlated with risk of arrhythmic death in various cardiac diseases including CAD. An increase in QTd is reported to predict the occurrence of life-threatening ventricular tachyarrhythmias and sudden cardiac death in patients with ischemic heart disease. Materials and Methods: This Cross sectional analytical study was conducted in Department of Cardiology, National Institute of Cardiovascular Diseases, Dhaka from January 2013 to December 2013. A total of 100 consecutive patients with angina based on predefined enrollment criteria were included in the study. .All patients were evaluated by history, clinical examination, biochemical analysis, and coronary angiogram (CAG) which was performed during index hospital admission. PCI was done only if the vessel was significantly stenosed.i,e. for LMCA - e”50%, for LAD, LCX and RCA it was e”70% as significant stenosis. Severity of stenosis of the involved vessels were categorized as severe( e”90%) and moderate(<90%). Results: Among the study population 76 (76%) patients were male and 24 (24%) patients were female. The left anterior descending artery (LAD) group comprised 37 patients and there were significant differences between before and after PCI QTc dispersion (90.5±38.9 vs 70.4±39.6 ms, p=0.001). The left circumflex artery (LCX) group was comprised of 6 patients and there were significant differences between before and after PCI QTc dispersion (62.2±41.9 vs 50.2±37.2 ms, p=0.001). The right coronary artery (RCA) group consisted of 18 patients, there being significant differences between before and after PCI QTc dispersion (84.9±40.7 vs 69.1±41.5 ms, p=0.001) Conclusion: PCI reduces QTc dispersion significantly among patients with angina. This QTc dispersion change is not influenced by sex, smoking, beta-blockers, hypertension, diabetes, renal impairment, stable or unstable angina but it depends upon the severity of coronary artery stenosis, involvement of coronary vessel and number of vessels.Reduction of QTc dispersion is a good sign of successful PCI that indicates successful reperfusion which carries an excellent prognostic value of revascularization.Further long term follow up will establish it. University Heart Journal Vol. 16, No. 1, Jan 2020; 33-39

scholarly journals The significant coronary tortuosity and atherosclerotic coronary artery disease; What is the relation?

2018 ◽  
Vol 10 (4) ◽  
pp. 209-213
Author(s):  
Mohsen Khosravani-Rudpishi ◽  
Adel Joharimoghadam ◽  
Elham Rayzan
Keyword(s):  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Anatomical Variation ◽  
Cross Sectional Study ◽  
Circumflex Artery ◽  
Cross Sectional ◽  
Timi Frame Count ◽  
Left Circumflex Artery ◽  
Artery Disease ◽  
Coronary Tortuosity

Introduction: Although coronary tortuosity is relatively common in coronary angiograms, there is much debate over the significance of this anatomical variation. So in this study the relation between significant coronary tortuosity (SCT) and coronary artery disease (CAD) was examined. Methods: The cross-sectional study included 737 patients (57% male) who were admitted to the hospital for a coronary angiography, based on their symptoms or non-invasive imaging. Coronary arteries defined as SCT are in the presence of either ≥3 consecutive curvatures of 90◦ to 180◦ or ≥2 consecutive curvatures of ≥180◦ measured at the end-diastole, in a major epicardial coronary artery ≥2 mm in diameter. Results: 29.17% of the patients had SCT of which females (64.7% vs. 34.1%, P< 0.001) and higher aged persons (62.9±8.4 vs. 57.8±10.7 years ± SD; P < 0.001) were significantly associated with SCT compared to non-SCT. Left anterior descending artery (LAD), left circumflex artery (LCX) and right coronary artery (RCA) with SCT in comparison to non-SCT, had lesser probability of CAD with stenosis severity of ≥50% (34.5% vs. 46.1%; P = 0.019 and 17.7% vs. 31.1%; P = 0.001 and 27.9% vs. 43.5%; P = 0.013 respectively) and also had significant lower Gensini scores (4.1±5.3 vs. 8.4±11.9; P = 0.011; 2.1±3.4 vs. 5.2±9.5; P = 0.01 and 1.2±1.9 vs. 5.03±8.9; P < 0.001 respectively) but higher TIMI frame count (15.7±5.3 vs. 11.9±4.6; P < 0.001 and 17.1±4.4 vs. 12.7±4.4; P < 0.001 and 15.2±3.9 vs. 11.6±4.8; P < 0.001 respectively). Conclusion: SCT is negatively correlated with CAD and there is a significant association between SCT and reduced coronary flow rate.

A novel system for the reconstruction of a coronary artery lumen profile in real time: a preclinical validation

2009 ◽  
Vol 297 (1) ◽  
pp. H485-H492 ◽  
Author(s):  
Ghassan S. Kassab ◽  
Jenny S. Choy ◽  
Mark Svendsen ◽  
Anjan K. Sinha ◽  
Mouhamad Alloosh ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Real Time ◽  
Vessel Diameter ◽  
Circumflex Artery ◽  
Cross Sectional ◽  
Catheterization Laboratory ◽  
Left Circumflex Artery ◽  
The Mean ◽  
The Difference ◽  
The Right

Accurate sizing of vessel diameter is important for understanding the physiology of blood vessels as well as the treatment of coronary and peripheral artery disease. The objective of this study was to validate a novel catheter-based system [the LumenRECON (LR) system] for the real-time reconstruction of lumen cross-sectional area (CSA) along the length of a vessel segment. A total of 22 swine (20 Yorkshire and 2 atherosclerotic Ossabaw swine) were used to evaluate the accuracy, reproducibility, and safety of the system compared with intravascular ultrasound (IVUS). The CSA of the right coronary artery, left anterior descending coronary artery, and left circumflex artery were determined by IVUS and the LR system over a 3- to 4-cm segment in 12 Yorkshire and 2 atherosclerotic Ossabaw swine and 2 postmortem atherosclerotic human hearts. In eight chronic animals, the effect of the LR catheter on the vessel wall was evaluated at 1 day and 2 wk (4 animals each) after the intervention. A Bland-Altman plot of the LR and IVUS data showed a mean difference between the two measurements of 0.055 mm in diameter, which was not statistically significant from zero, indicating a lack of bias in the comparison of the LR system with IVUS. The root mean square error of the two measurements was 10.2% of the mean IVUS diameter. The repeatability of the LR system was assessed using duplicate measurements. The mean of the difference between the two measurements was nearly zero, and the repeatability coefficient was within 4.5% of the mean of the two measurements. No injury or intimal hyperplasia was found acutely or chronically after the use of the LR system. This study establishes the accuracy, reproducibility, and safety of a nonimaging 2.7-Fr catheter for lumen sizing of coronary arteries. The system provides a continuous quantitative axial profile of the mean vessel lumen in real time and may have significant utility in vascular research and clinically in the catheterization laboratory.

Hypoplastic Left Circumflex Coronary Artery: Imaging Findings with Coronary Computed Tomography Angiography - A Case Report

2019 ◽  
Vol 15 (4) ◽  
pp. 427-429
Author(s):  
Asli Tanrivermis Sayit ◽  
Cetin Celenk
Keyword(s):  
Computed Tomography ◽  
Coronary Artery ◽  
Coronary Computed Tomography Angiography ◽  
Coronary Artery Imaging ◽  
Circumflex Coronary Artery ◽  
Circumflex Artery ◽  
Coronary Computed Tomography ◽  
True Incidence ◽  
Left Circumflex Artery ◽  
Artery Disease

<P>Background: Hypoplastic coronary artery disease is a rare congenital coronary artery anomaly. It is often detected incidentally, and its true incidence in the general population is not known. </P><P> Discussion: Symptoms of HCAD are syncope, palpitations, dyspnea, and chest pain. Also, arrhythmia and myocardial infarction can be seen; these can cause sudden death, especially in athletes and young people. Diagnosis is often made at autopsy. Conclusion: Here, we present the case of a 39-year-old male with isolated hypoplasia of the left circumflex artery detected by coronary Computed Tomography (CT) angiography who complained of palpitation.</P>

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