Showing 23 results for Coronary Artery Disease
Af Zand Parsa,
Volume 59, Issue 6 (11-2001)
Abstract
In the past, coronary artery bypass grafting was the treatment of choice for patients with symptomatic multi vessel coronary artery disease, but in recent years per cutaneous transluminal coronary angioplasty (PTCA) accepted as an alternative approach to revascularization. To assess the initial success and in hospital results of coronary angioplasty of more than one lesion per procedure in patients with multi vessel coronary artery disease, a retrospective analysis of patients who underwent selective coronary angioplasty at Imam Khomeini medical center from 1994-1997 were peformed. From 1994 to 1997 per cutaneous transluminal coronary angioplasty (PTCA) were done in 257 patients, that 201 (78.2 percent) were male and their age range 23-73 years. The numbers of patients with multi vessel coronary artery disease were 98 (38.13 percent), that complete revascularization (PTCA of more than one lesion per procedure) underwent in 34 (13.58 percent) of them (27 men, 7 women, age: mean±SD 48±9.8 range 30-70). A total of 71 lesions were tried, that 22 (31 percent) were type A, 45 (63.4 percent) were type B, and 4 (5.6 percent) were type C. Among patients 21 (61.8 percent) had unstable angina and 13 (38.2 percent) had stable angina. Procedures were successful in 68 (95.8 percent) of lesions and 31 (91.2 percent) patients were discharged fro procedural complications included 3 (8.8 percent) non-Q wave myocardial infarction and no mortality. Without any complication, (success defined as residual stenosis <50 percent). As a conclusion, in selected patients with multi vessel coronary artery disease PTCA of more than one lesion per-procedure is effective and safe.
E. Neamatipoor, A. Sabri, F. Dahi, F. Soltanipoor,
Volume 64, Issue 3 (5-2006)
Abstract
Background: coronary artery disease (CAD) is one of the most important causes of mortality around the world. The mortality rate in acute myocardial infarction is about 30%. CAD risk factors change with time and there are very few studies in this field in Iran. These changes may be due to bio-environmental conditions. In this study our objective was to track these changes during a ten years period.
Methods: This study was done in three general hospitals of Tehran University of medical sciences on patients with first acute myocardial infarction (AMI) in years 1371 and 1381. Demographic and specific data were obtained from patient data sheets. Comparison of means was done by t-test and prevalence of risk factors by chi-square test.
Results: Two hundred fifty eight patients in 1371 and 289 patients in 1381 were admitted to three university hospitals due to acute myocardial infarction for the first time. The mean age of women with AMI decreased 4 years (P=0.022). No significant change was seen in other coronary risk factors. We also observed a significant increase in prevalence of myocardial infarction in women with three risk factors (P=0.01).
Conclusion: We found no significant change in the age of male patients and in the CAD risk factors in 1371 and 1381. Mean age of occurrence of AMI in female shows a four-year decrease during this period. More studies are needed to find reasons for this change.
Salarifar M, Kazemeini S.m, Haji Zeinali A.m,
Volume 65, Issue 1 (3-2008)
Abstract
Background: Premature coronary artery disease (CAD) has a familial predisposition and
occurrence. We determined the prevalence of CAD and related risk factors in individuals
with a history of premature CAD in their first-degree relatives.
Methods: This study included 700 healthy individuals with a history of premature CAD
in their parents or siblings in Tehran Heart Center in 2003-2004. History of smoking,
diabetes mellitus (DM) or hypertension was taken. Fasting levels of blood sugar (FBS),
triglycerides (TG), cholesterol, LDL and HDL were measured. Noninvasive studies for
CAD were performed with resting echocardiography (ECG) and ECG with exercise
tolerance test (ETT). Patients with positive findings for ischemia in these tests underwent
a myocardial perfusion scan and if positive proceeded to coronary angiography.
Results: The mean age of our subjects was 35.2 (15-65) years. DM was found in 5.3%,
smoking in 14.7%, hypertension in 20.6%, cholesterol above 200 mg/dl in 39.9%, TG
above 150 mg/dl in 58.6%, LDL above 130 mg/dl in 38% and HDL below 40 mg/dl in
32.6%. In addition, 6.4% had ECG changes and 3% echocardiographic abnormalities in
favor of ischemia. ETT was positive in 7.3% and myocardial perfusion scan in 2.1%.
Coronary angiography showed 50-70% stenosis in eight patients (1.1%) and >70% in
four patients (0.6%).
Conclusion: High cholesterol, TG and LDL and low HDL were found among our
subjects. Risk factor determination in these individuals may prove to be beneficial.
Noninvasive tests for CAD yield low true-positive results and are not recommended in
the population as a whole. In certain subgroups, including those with persons older than
40 years and diabetic patients, these tests may be useful.
Nozari Y, Nabati M,
Volume 65, Issue 7 (10-2007)
Abstract
Background: Epidemiological studies have suggested an association between higher body iron stores and coronary artery disease. It is believed that inflammation and oxidation are important mechanisms involved in the complex pathological process of atherogenesis. Free radical production is catalyzed and accelerated in the presence of iron. The determination of plasma ferritin levels is a convenient iron balance assessment method. The purpose of this study was to define the correlation of ferritin levels with severity and extent of coronary artery atherosclerosis.
Methods: In this cross-sectional study, 240 consecutive patients underwent previously indicated coronary artery angiography and were divided into two groups according to their angiographic findings: group 1 with 50% stenosis or less in each of the coronary arteries, and group 2 with more than 50% stenosis of the coronary arteries. Blood samples were taken for routine biochemical tests, including evaluation of serum ferritin levels. The severity and extension of coronary artery stenosis was determined by Gensini score.
Results: Group 1 consisted of 120 patients with a mean age of 52 6.8 years, and group 2 had 120 patients with a mean age of 58.1 10.4 years. We found a correlation between serum ferritin level and severity of coronary artery stenosis among men (p=0.02) however, there was no significant difference in serum levels of ferritin between the two groups (63.88 ng/ml vs. 44.26 ng/ml). Furthermore, there was no significant difference in serum ferritin levels of subgroups of patients with major risk factors such as hypertension, hyperlipidemia, hyperglycemia and smoking.
Conclusion: Overall this study cannot confirm a strong correlation of serum ferritin levels with severity of coronary atherosclerosis in our study population. However, in men it could have a role in the promotion and augmentation of coronary atherosclerosis, suggesting that ferritin could be a comparable index in patients with ischemic heart disease. Therefore, further study is necessary to assess etiological relationship between serum ferritin levels and extension of coronary artery stenosis.
Kazemi Khaledi A, Taghizadeh M,
Volume 66, Issue 8 (11-2008)
Abstract
Background: Multislice computed tomography (MSCT) is a noninvasive method of detecting coronary artery disease (CAD). The purpose of the present study was to investigate the accuracy of 64-slice MSCT (64-MSCT) in daily practice, without patient selection.
Methods: Sixty-four consecutive suspected CAD patients underwent both 64-MSCT and quantitative coronary angiography (QCA). The CT system The mean time span between MSCT and QCA was 7.2±3.9 days. For the 64-MSCT, detection or exclusion of CAD, defined as one or more areas of >50% stenosis within major epicardial coronary arteries, the sensitivity, specificity, diagnostic accuracy, positive predictive value (PPV), and negative predictive value (NPV) were evaluated both per patient and per segment.
Results: Sixty-one of the 64 coronary CT angiograms (95%) were of diagnostic image quality. QCA showed significant CAD in 64% (39/61) of the patients, with the other 36% (22/61) showing nonsignificant disease or no disease. Sensitivity, specificity, accuracy, PPV, and NPV of 64-MSCT per patient were 92%, 86%, 90%, 92% and 96%, respectively. By the per-segment analysis, 695 of 791 coronary artery segments were assessable (88%). Of these, 64-MSCT showed a sensitivity of 80%, specificity of 92%, accuracy of 90%, PPV of 65%, and NPV of 96%, respectively, in detecting CAD.
Conclusions: Both per patient and per segment analyses for coronary 64-MSCT showed a higher diagnostic accuracy than QCA. This suggests 64-MSCT should primarily be used for risk stratification on a per patient basis as a noninvasive gate-keeper diagnostic method.
Eslami M, Mehrpooya M, Broumand B, Seifi S,
Volume 67, Issue 1 (4-2009)
Abstract
Background: Uric acid as a final product of purine metabolism has a role of risk factor for cardiovascular disease with less clear mechanism in general population. The aim of this study was Assessing and finding association between uric acid levels and CAD as a risk factor in renal transplant candidates and if we can predict need to revascularization according to uric acid level as an important measure.
Methods: This is a cross-sectional study that has been studied since April 2007 up to December 2008, in imam Khomeini and pars hospitals in Tehran. Inclusion criteria were patients with ESRD, more than 40 years who were candidates for renal transplantations. They underwent coronary angiography without regarding clinical cardiac symptom or results of noninvasive tests (for avoiding referral bias) and simultaneous analysis of serum uric acid level and results of this two producers were analyzed. Excluding criteria were patients who didn't tend to coronary angiography, those who hadn't adequate artery access, or potential co morbidity so that angiography was impossible and life expectancy less than 6 month.
Results: 56 (24 females and 32 males) were constituted. 89.3% (50) of patients had coronary artery disease. The average of uric acid level was significantly different in patients with and without CAD [7.62±1.07mg/dl and 5.95±1.29mg/dl respectively] (p=0.0024). Moreover, there was statistically significant difference in serum uric level between patients who were candidate for revascularization and the others [7.89±0.79mg/dl and 6.2±1.27mg/dl respectively] (p<0.001).
Conclusion: It seems that serum uric acid can be considered as a cardiovascular risk factor in renal transplant candidates and also as a predictor for related treatment.
Abiri M, Sadeghian S, Hakki E, Boroumand Ma, Mehdipour P, Izadi M, Keramatipour M,
Volume 67, Issue 2 (5-2009)
Abstract
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Background: Coronary
Artery Disease (CAD) is a major cause of death worldwide including Iran. The risk of developing disease in patients
without symptoms is assessed in part by factors that are associated with disease.
Among these factors family history points to the significance of genetic
component in the risk of CAD. The identification of the genetic variants that
confer risk for CAD is essential for detecting high-risk individuals, so
preventative life style and therapeutic action can be taken before overt
disease develops. So far more than 100 genes have been reported with possible
role in developing risk for CAD. Matrix- Gla Protein (MGP) is one of these
genes that association of its single nucleotide polymorphism (SNP) with CAD has
been reported. Among the polymorphisms,
there are two promoter SNPs at position -7 & -138 that their association
with CAD has been reported before. Here we investigated the association of
these SNPs with CAD in Iranian population.
Methods: 150 cases and 150 controls were selected on the basis of their
clinical assessments and angiographic reports. DNA was extracted from blood
samples. The genotypes for both SNPs were determined using Polymerase Chain
Reaction-Restriction Fragment Length Polymorphism (PCR-RFLP) method with size
fractionation on Polyacrylamide gel.
Results: The
comparison of allele & genotype frequencies between patients and controls
showed that there is an excess of A allele at position -7 and T allele at
position -138 among patients, although these differences were not significant (p<0.2, and p<0.5 respectively).
Conclusions: This study
suggests no association of these SNPs with CAD in Iranian population.
Confirmation of this finding needs independent repeat of similar studies.
Keywords: Coronary
Artery Disease (CAD), Matrix Gla Protein (MGP), Single Nucleotide Polymorphism (SNP).
Zand Parsa Af, Ziai H, Fallahi B,
Volume 68, Issue 3 (6-2010)
Abstract
Background: Coronary Artery Disease (CAD) is one of the leading causes of mortality
and morbidity all over the world. One of the most important predictors of outcome of patients with coronary aterey disease is the site of stenosis i.e. Proximal versus nonproximal stenosis. This study designed to evaluate the relationship between CAD risk factors and site of stenosis.
Methods: In this case- control study in the patients undergone coronary angiography (CAG) in Imam Khomeini Hospital, Tehran, Iran a total of 125 CAD patients with proximal lesion in CAG enrolled the study as case group and equal sex and age matched number of patients with non proximal lesion selected as control group. Two groups were compared based on presence or absence of DM, hypertension, hyper cholestrolemia, hypertriglyceridemia and cigarette smoking.
Results: Relative frequency of DM was 33.6% and 10.4% in case and control group respectively (p< 0.0001). Relative frequency in two groups were 33.6 vs 28.8% For HTN (p= 0.41), 30.4% vs 29.6% for hyper cholestrolemia (p= 0.89), 19.2% vs 16.8% for hypertriglyceridemia (p= 0.062) and 28.8 vs 39.2 for C/S (p= 0.08). Multivessle disease was significantly more prevalent in diabetics compared with non diabetic patients
89.1% vs 61% (p< 0.0001), no relationship was seen with HTN (p= 0.41), Hyper cholest- rolemia (p= 0.052) hypertriglyceridemia (p= 0.38) and cigarette smoking (p= 0.375). Conclusion: Proximal involvement of coronary arteries and multivessle disease in CAD patients is related to the history of DM but not to the history of hypertension, hypercholestrolemia, hypertriglyceridemia and cigarette smoking.
Edalati Fard M, Khatami Smr, Sadeghian S, Salari Far M,
Volume 68, Issue 6 (9-2010)
Abstract
Background: The relationship between Coronary Artery Disease (CAD) and the prevalence of Renal Artery Stenosis (RAS) has been demonstrated. Despite high incidence of heart diseases and high frequency of CAD risk factors among Iranian population, this relation has not been clearly determined. This study estimated the prevalence of RAS and its determinants in Iranian angiographic candidates. We also tried to find which risk factors of atherosclerosis are associated more frequently with renal artery stenosis.
Methods: In a cross-sectional study that was performed at the Tehran Heart Center, in Tehran, Iran, 146 patients who were candidate for angiography with suspected CAD were consecutively included. Selective renal angiography was performed following coronary angiography in all patients with established coronary artery stenosis and the presence and severity of RAS was evaluated.
Results: Prevalence of RAS in study patients was 25.3% (men, 13.7% and women 47.1%, (p<0.001). We found that only 6.2% of the patients had bilateral R.A.S. Also, RAS≥50% was found in 17.1% of patients. Regarding number of defected coronary vessels, two- and three-vessel diseases were found in 30.0% and 39.0% of participants, respectively. No significant relationship was found between the number of involved coronaries and the severity as well as side of RAS (p=0.716) Significant multivariate predictors of RAS were female gender (p=0.001), advanced age, (p=0.046) duration of hypertension (p=0.032) and baseline serum creatinine concentration (p=0.018).
Conclusions: Routine angiographic assessment of renal arteries following coronary angiography is recommended especially in women as well as those with long-term duration of hypertension or renal dysfunction.
Eshraghi N, Tarzamni Mk, Afrasiabi A, Safaie N, Halimi M, Eshraghi A,
Volume 68, Issue 7 (10-2010)
Abstract
Background: A correlation between coronary artery disease (CAD) and atherosclerosis of peripheral arteries and the determination of noninvasive indexes for its existence and extent have been sought by many researchers. Some studies report that the intima-media thickness (IMT) of peripheral arteries could play this role. This study evaluated the correlation between the IMTs of common carotid and common femoral arteries and the degree of atherosclerosis in aortic arch and to evaluate the severity of CAD in candidates of coronary artery bypass grafting (CABG).
Methods: In a cross-sectional analytic-descriptive study, The severity of CAD, the grade of atherosclerosis of the aortic arch, and the IMTs of the common carotid and common femoral arteries were determined.
Results: There was a significant weak positive correlation between the IMT of common carotid artery (ρ = 0.193, p = 0.039) and common femoral artery (ρ = 0.206, p = 0.028) with the number of involved carotid vessels the mean of these two parameters was not significantly different between the three CAD groups. There was not any significant relation between the IMTs of common carotid and common femoral arteries with the severity of atherosclerosis in the aortic arch too. There was not any significant relation between the presences of atherosclerotic plaque in the common carotid or the common femoral arteries with the severity of CAD. The severe atherosclerosis of the aortic arch was significantly higher in patients with three vessel disease.
Conclusion: According to our results, the IMTs of common carotid and/or common femoral arteries may increase with the severity of CAD however, these parameters are not a surrogate for predicting the CAD severity.
Nadia Hatmi Z, Kazemi Said A, Khoshkar Najar Sh,
Volume 69, Issue 8 (11-2011)
Abstract
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Background: Previous studies were suggestive of a good prognosis in patients
with acute coronary syndrome (ACS) and absence of any critical stenosis in coronary angiography but recent
limited reports have revealed that patients with non-obstructive acute coronary
syndrome are at a higher risk of future clinical coronary events.
Methods : A concurrent prospective cohort study was designed and 146 male patients with ACS and non-obstructive coronary
artery disease were regarded as the unexposed group, while 191 female patients with non-obstructive
coronary artery disease were regarded as the exposed group. Coronary events were
recorded within one year of follow-up. Prognostic factors were evaluated at
baseline by using a standardized protocol.
Results : Of the 337 patients with ACS, 191 (56.6%) were female. Coronary events in female patients after one year of
follow-up were: ST EMI 3 (1.6%), unstable angina pectoris 22 (11.5%),
Q-wave MI
1 (0.5%) and no syncope. In male patients the outcomes
were: ST EMI 4 (2.7%), unstable angina pectoris 29 (19.9%),
Q-wave MI 1
(0.7%), and syncope 1 (0.7%). Multivariate adjusted
relationships revealed that physical inactivity (P=0.035),
dyslipidemia (P=0.001), low ankle brachial
index (P=0.024) and
age between 40-50 years (P=0.004) were significantly associated with coronary events in women. In
male patients, body mass index of 30-39.99
(P=0.011) was associated with a higher
rate of ST-segment elevated MI.
Conclusion: Prognostically,
coronary events and clinical endpoints were significantly different between men
and women with acute coronary syndrome. Persistence of symptoms over one year seems
to relate to the development and progression of coronary atherosclerosis.
Karbasi-Afshar R, Shahmari A, Shafighi N, Saburi A,
Volume 70, Issue 6 (9-2012)
Abstract
Background: Various therapeutic protocols have been recommended for treating dyslipidemia, particularly in patients with coronary artery disease. The purpose of this study was to assess the efficacy of statin use with or without fenofibrate on echocardiographic findings of patients with coronary artery disease and dyslipidemia.
Methods: This clinical trial was conducted on 124 patients with coronary artery disease and dyslipidemia in Baqiyatallah Hospital in Tehran, Iran during 2008 to 2010. The first group of patients (64) received simvastatin (20 mg) and fenofibrate (200 mg) with low lipid diet and exercise while the second group (60) only received simvastatin with low lipid diet and exercise for one year.
Results: The mean age of the participants was 54.3±6.5 years. The first group showed significant changes in lipid profile and left ventricular ejection fraction (LVEF), (P<0.05). Left ventricular diastolic function parameters showed no significant changes in both groups upon 12 months of treatment.
Conclusion: The results of this study show, one-year treatment by simvastatin and fenofibrate can be effective on lipid profiles, and improve LVEF with resultant positive effect on heart function.
Af Zand Parsa, N Gilani Larimi, A Esteghamati, M Motevalli,
Volume 71, Issue 2 (5-2013)
Abstract
Background: It has been shown that coronary artery calcium scoring (CACS) can be used as a diagnostic method in coronary artery disease (CAD). The relationship between CACS and calcium metabolism in the body has been shown. The arterial calcification is an organized process similar to bone formation which is controled by parathormone (PTH). The relationship between PTH as an osteoregulatory factor and CACS has been also indicated. In this study, we tried to assess the value of serum PTH and CACS in patients planned to undergo coronary angiography (CAG) in order to find a simple, cost -benefit, noninvasive way, for ruling in/out obstructive CAD.
Methods: In a cross sectional study in Imam Khomeini hospital in 1390, CACS by using non-enhanced multi detector computed tomography (MDCT) and measurement of serum level of PTH, Calcium and Phosphate were done in 178 patients suspected to CAD which were scheduled to undergo coronary angiography serum PTH was measured by immuno-radiometric assay (IRMA) and serum Ca and Phosphate were measured by spectrophotometry methods.
Results: Of 178 Patients, 50 patients were females and 126 patients were male. Mean age of them was 56.2±11.6. The correlation coefficient between CACS and Gensini score (0.507, P<0.001), PTH (0.037, P=0.693), Ca (0.062, P=0.499) and Phosphate (0.061, P=0.506) were obtained. The level of serum PTH in the patients with and without coronary artery disease were 21.8±11.6 pg/dl, 23.2±11.5 pg/dl (P=0.427) respectively.
Conclusion: Our study showed association between CACS and CAD that was statistically significant while no relationship was found between PTH, CACS and CAD.
Maryam Amirazodi , Farhad Daryanoosh , Mohamad Ali Babaee Begi , Maryam Koshki Jahromi , Amin Mehrabi ,
Volume 71, Issue 3 (6-2013)
Abstract
Background: Vasoactive intestinal peptide (VIP) plays an important role in modulating coronary blood flow and heart rate. The purpose of the present study was to investigate the effect of eight weeks of low intensity aerobic exercise on plasma levels of VIP hormone, blood pressure and heart rate in healthy elderly men and women, and patients with coronary artery disease (CAD).
Methods: In this study, 15 healthy women and 15 healthy men and 15 female and 15 male with CAD disease were randomly chosen as the experimental and control groups. Subjects did aerobic exercises tree days/week, for eight weeks, with the heart rate of 10010 beats per minute. Blood samples were taken from each subject in three stages, (before, immediately after and 24 hours after the 8 weeks of exercising).
Results: The results showed that there was a significant difference among plasma VIP levels in the four groups. Moreover, a significant difference was observed between the systolic blood pressure in the four groups (P=0.01) and the systolic blood pressure in male patients and healthy women (P=0.03) while there was no meaningful difference the systolic blood pressure in the two other groups. There was also a significant difference in the heart rate of the three rounds of sampling in the three of groups (P=0.002) but no significant difference was observed in healthy men.
Conclusion: According to the above results, it seems that the duration and intensity of each workout should be considered to reach the VIP stimulation threshold. It may bring about considerable changes in VIP levels.
Amir Farhang Zand Parsa, Soudabeh Nejati , Alireza Esteghamati ,
Volume 71, Issue 9 (12-2013)
Abstract
Background: Advanced glycation end-products (AGEs) came up with the recent researches regarding new biomarkers for the diagnosis of heart failure. AGEs are the end products of non-enzymatic glycation and oxidation of proteins, lipids and nucleotides during Maillard biochemical reaction. Although it has been known that AGEs have a role in the pathogenesis of chronic heart failure (CHF), information regarding its role and its pathogenetic mechanism is very limited. The aim of this study was to find any relationship between AGEs with the etiology and severity of chronic heart failure.
Methods: This study is a prospective cross sectional study that enrolled 85 patients with chronic heart failure. Measurement of left ventricle ejection fraction (LVEF) was done by echocardiography. Blood samples were collected for measuring AGEs just before or after echocardiography assessment (in the same session). Measurement of AGEs was done by the enzyme-linked immunosorbent assay (ELISA) method. The relationship between AGEs with the severity of CHF and as well as the etiology of CHF were evaluated via SPSS-15.
Results: Of 85 patients 48 (56.5%) patients were male and 37 (43.5%) were female Mean±SD of their ages was 55.8±13.4 years old (ranges from 27 to 84 years). Correlation coefficient between LVEF and AGEs was 0.269 (P=0.013). Mean of AGEs in patients with and without ischemic etiology of their heart failure were 16.8±9.8µg/ml and 11.6±7.3 µg/ml, respectively. Although trend was in favor of ischemic heart failure, the difference between two groups was not statistically significant (P= 0.141).
Conclusion: According to this study the rate of AGES could be helpful in the diagnosis and assessment of severity of CHF. Based on our findings, higher blood levels of AGEs in the ischemic CHF cases, also it could be concluded that in the future this marker may be used for etiologic differentiation of heart failure syndrome.
Amir Farhang Zand Parsa, Parsa Faryadras , Alireza Esteghamati, Naser Gilani Larimi,
Volume 71, Issue 11 (2-2014)
Abstract
Background: Although a few studies have shown the positive correlation between patients’ serum concentration of 25 OH-Vitamin D3 and type II diabetes mellitus, metabolic syndrome, and insulin resistance, there are controversies regarding the relationship between 25 OH-Vitamin D3 as a risk factor for cardiovascular atherosclerotic diseases that has to be cleared. The aim of this study was to evaluate the association between the rate of 25 OH-Vitamin D3 and the presence and severity of coronary artery disease (CAD) in Patients with suspected CAD.
Methods: This study was a cross sectional study that has been conducted in the department of cardiology in Imam Khomeini Hospital complex in collaboration with endocrinology research center. In this study 178 patients with suspected coronary artery disease (CAD) were enrolled. Based on their history and clinical findings coronary angiography was performed in all patients. Severity of CAD has been assessed by using Gensini score, based on their coronary angiography findings. The relationship between severity of CAD and their serum level of 25 OH-Vitamin D3 was evaluated. Serum level of 25OH- Vitamin D3 was measured by the enzyme-linked immunosorbent assay (ELISA) method by Euroimmiune kits (from Germany).
Results: Of 178 patients, 50 (28.1%) were female and 128 (71.9%) were male. Mean±SD of their ages was 56.2±11.8 years old. Significant coronary artery stenosis (stenosis more than 50% luminal diameter) was observed in 91 (51.1%) of patients. Mean±SD of serum level of vitamin D3 in patients with CAD was 45±35 nm/l and in patients without CAD was 55±44 nm/l (P= 0.047). Mean±SD of Gensini score was 26.3±21.1, as well. Therefore correlation coefficient between 25 OH-Vitamin D3 and Gensini score was -0.262 (P= 0.043).
Conclusion: Although there is a trend toward association between deficiencies of 25 OH-Vitamin D3 and the presence of CAD but their association is not statistically significant. For achieving more convincing findings larger studies are needed.
Najmeh Jouyan , Babak Saffari , Elham Davoudi-Dehaghani, Negar Saliani , Sara Senemar , Marzieh Bahari , Neda Jouyan , Mohammad Ali Ostovan ,
Volume 72, Issue 12 (3-2015)
Abstract
Background: Polymorphisms of the upstream transcription factor 1 (USF1) have been associated with familial combined hyperlipidemia (FCHL), type 2 diabetes and coronary heart diseases (CHD). In the current investigation, the association of USF1s2 variant of human USF1 gene with premature coronary artery disease (PCAD) was evaluated in a population from southern Iran. USF1s2 has the best potential as a functional variant .in the USF1 gene.
Methods: In a case-control study USF1s2 variant of human USF1 gene was determined by polymerase chain reaction- restriction fragment length polymorphism (PCR-RFLP) technique using BsiHKA I restriction enzyme for 186 women under 55 years of age and 135 men less than 50 years of age who underwent diagnostic coronary angiography in Saadi, Nemazee and Kowsar Hospitals of Shiraz, between July 2009 and March 2012. Data on the history of familial myocardial infarction or other heart diseases, hypertension, and smoking habit were collected by a simple questionnaire. Blood sugar level and serum lipid profile of all participants were also obtained by measuring the levels of fasting blood sugar (FBS), total cholesterol (TC), triglycerides (TG), low density lipoprotein (LDL) and high-density lipoprotein cholesterol (HDL).
Results: Frequencies of the major (G) and minor (A) alleles of usf1s2 gene variant were 0.74 and 0.26 in the whole population, respectively. Meanwhile, the prevalence of the minor allele was significantly higher in PCAD patients compared with control subjects. This difference remained significant even after adjustment for confounding parameters. Indeed, subjects with mutant homozygous genotype (AA) were about 5 times more likely to suffer from early-onset CAD than those with wild-type homozygous genotype (GG). Moreover, the baseline characteristics of the control subjects and patients were statistically similar for almost all parameters except for the number of male individuals there was no significant difference among various genotypes in the patient group for any of these investigated variables.
Conclusion: It appears that the usf1s2 variant in upstream transcription factor 1 gene is an independent predictor of premature coronary artery disease in our population and applies its effects without affecting blood sugar and lipid levels.
Ali Maleki , Mahnaz Ashjaearvan , Ashraf Karimi ,
Volume 73, Issue 1 (4-2015)
Abstract
Background: The effects of consumption of nutrients on coronary artery disease (CAD) are widely observed. The aim of this study is to assess the exclusive Iranian dietary pattern on coronary artery diseases (CAD) and its risk factors. Methods: In this description-cross sectional study, 801 inhabitants of Borujerd City were included by random stratification method and a questionnaire regarding micro- and macronutrients for subjects over 35 years old from March 2011 to February 2012 was filed out. Of all the subjects consent to participate were prepared by volunteers. The complete description and a standard questionnaire to record demographic and socioeconomic status of people were taken. The prevalence of coronary artery disease and its risk factors determined Based on rose questionnaire and Monica questionnaire respectively. Results: In this study mean age of the subjects were 54.8±1.2 years, 388 male and 413 female. There was no meaningful relation between red meat consumption and coronary artery disease (P= 0.117). Nut consumption was higher in patients with CAD (P= 0.028). Use of fresh and cooked vegetables, dried fruit, animal oils cakes, french fries and some dairies are correlated with CAD (P< 0.05). However, artificially flavored soda in contrast to ordinary soda was not associated with coronary artery disease. Conclusion: Although there are some differences between dietary pattern in patient with coronary artery disease, nutritional attitudes are not significantly different in normal and CAD patients. However, according to the importance of diet in CAD, balancing these attitudes should be on the educational system high priority.
Rouhangiz Babakhanianzadeh, Nahid Masoudian , Amirnader Emami Razavi, Gholam Basati ,
Volume 73, Issue 7 (10-2015)
Abstract
Background: Low density lipoprotein (LDL) particles have shown to be heterogeneous structures with distinctive electrical charges. Alteration in the fatty acids content of the LDL particles is known to affect their structural features, electrical charges, and ultimately physiologic properties and, in this way, may play a role in the pathology of coronary artery disease (CAD). On the basis of evidences, in the present study, the relationship of fatty acids content of LDL particles and their electrical charge was assessed in patients with CAD in comparison with control subjects. Methods: In the current case- control study, from subjects who referred to the Mostafa Khomeini Hospital in Ilam during a time period from December 2013 to October 2014, 40 CAD patients and 40 control subjects were selected based on the clinical and angiographic parameters. The fatty acids content and electrical charges of LDL particles were measured by using a gas chromatography system, equipped with a flame ionization detector GC-FID, Acme 6000 M (Young Lin Co., Korea) as well as a Zetasizer (Malvern Instruments Ltd., UK), respectively. Results: In the present study, CAD patients and control subjects were matched for age, sex, and body mass index (BMI). The electrical charge amounts of LDL particles in the patients group was significantly lower than those in the control subjects (P= 0.0001). There was an inverse correlation between the electrical charge amounts of the LDL particles and the saturated fatty acids as well as linoleic acid contents of them in CAD patients group. However, we found a direct correlation between the unsaturated fatty acids (monounsaturated fatty acids and some of the polyunsaturated ones) content of the LDL particles and their electrical charge amounts (P= 0.02). Conclusion: Results of the present study demonstrated that the increased saturated fatty acids as well as the linoleic acid contents of the LDL particles are associated with decreased electrical charge amounts of these particles and this situation may engage in pathogenesis of CAD.
Ali Fakhr-Movahedi , Abbasali Ebrahimian , Majid Mirmohammadkhani , Saeedeh Ghasemi ,
Volume 74, Issue 2 (5-2016)
Abstract
Background: Coronary artery disease is considered as main factor for patients’ hospitalization. Chest pain is the most common symptoms of patients and its assessment is an important factor in coronary artery disease. So, this study aimed to determine the relationship between the severity of chest pain with physiological indexes in patients with coronary artery disease.
Methods: This study was a descriptive-analytical design that performed on 80 patients with that were hospitalized in coronary care unit of Shahid Mofatteh Hospital in Varamin city, Iran, from March to September, 2014. In this study, the relationship between the chest pain severity and blood pressure, pulse rate, respiratory rate, O2 saturation and ST segment alterations were assessed. Finally, the gathered data were analyzed by descriptive and inferential statistics.
Results: The mean of chest pain severity was 6.51±2.14 in patients. Patients’ age was between 26 to 85 years old and the mean of age was 60.79±13.79 and there was no significant correlation between age and chest pain severity (P=0.985). Also male and female patients were equal. There was no significant difference between chest pain severity of men and women (P=0.471). The findings of study showed no correlation between chest pain severity and heart rate (r=-0.174 and P=0.122), respiratory rate (r=-0.013 and P=0.909), O2 saturation (r=0.051 and P=0.651), ST segment alterations (r=0.07 and P=0.539). Also, there was no significant difference between chest pain severity and systolic pressure (P=0.353), diastolic blood pressure (P=0.312) and body mass index (P=0.256) among patients.
Conclusion: In this study, there were not enough evidences for relation between chest pain and physiological indexes in patients with coronary artery disease. So performing more studies in another settings and conditions recommended.
