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Showing 11 results for Echocardiography
Effect of volume reduction on diastolic echocardiographic parameters in hemodialyzed patients
Hekmat R, Talebi S, Mohebati M,
Volume 65, Issue 5 (8-2007)
Abstract

Background: Cardiovascular problems including arterial hypertension, coronary artery diseases, congestive heart failure are prevalent among chronic hemodialyzed patients. Ultrafiltration of hemodialyzed patient's serum, which culminating in intravascular volume reduction, is frequently used during hemodialysis. One of the restrictions of the echocardiographic evaluation of the diastolic heart function is the intravascular volume dependency of some echocardiographic parameters. In this study we have evaluated the volume dependency of certain echocardiography parameters in chronically hemodialyzed patients.

Methods: Thirteen patients undergoing chronic hemodialysis in Ghaem Hospital Hemodialysis Center in Mashhad, Iran, were evaluated one hour before and immediately after hemodialysis for the following: all diastolic echocardiographic parameters, left ventricular function, left ventricular systolic function, inferior vena cava (IVC) diameter and IVC collapsibility with inspiration, and systolic and diastolic blood pressure. The echocardiographic parameters were analyzed using the paired Student's t-test.

Results: With hemodialysis, there was no significant change in left ventricular function, A wave amplitude and E/F slope, however, there was a significant reduction of the E wave amplitude, increment in E wave deceleration time (p= 0.001, t=-4.14) and a decrease in the E/A ratio (p=0.03, t=2.46). Tissue Doppler echocardiography showed no significant change in mitral annular diastolic motion, E'/A' waves, with hemodialysis (p=0.728, t= - 0.356), although there was a reduction of the E/E' ratio.

Conclusion: Tissue Doppler imaging and color M-mode echocardiographic parameters are independent of the intravascular value status. With no change associated with hemodialysis, these parameters can be used as reliable criteria for evaluating ventricular diastolic function even when the volume status varies.


Echocardiographic findings and joint hypermobility: patients with mitral valve prolapse vs. healthy controls
Moradmand S, Shaeri H.r., Gharooni M, Rostamian A, Akbari Z, Mirkhani S.z., Bagheri A,
Volume 66, Issue 8 (11-2008)
Abstract

Background: Mitral valve prolapse is a relatively common valvular abnormality in most communities and joint hypermobility (JHM) is also seen in many healthy people as well as in certain clinical disorders, such as Marfan syndrome. The present study was designed to investigate the association between joint hypermobility and mitral valve prolapse (MVP) in an Iranian population sample.

Methods: Fifty-seven patients with nonrheumatic and isolated mitral anterior leaflet prolapse (24 men and 33 women, mean age 23.5 +/-2.3) and 51 healthy subjects (20 men and 31 women, mean age 22.9+/-2.3) were studied. The presence of JHM was evaluated according to the Carter-Wilkinson & Beighton criteria. Echocardiographic examination was performed in all subjects and the correlation between the echocardiographic features of the mitral valve and the hypermobility score were investigated.

Results: The frequency of JHM in patients with MVP was found to be significantly higher than that of controls (26.3% vs. 7.8%), with mean JHM scores of 3.1+/-2.2 and 1.9+/-1.7, respectively. The patients in the MVP group had significantly increased the anterior mitral leaflet thickness (AMLT, 3.4+/-0.4 mm vs. 3.0+/-0.3 mm p<0.0005) and maximal leaflet displacement (MLD, 2.4+/-0.3 mm vs. 1.5+/-0.2 mm p<0.0005) compared to the controls.

Conclusions: We detect a statistically significant relationship between isolated MVP and joint hypermobility as well as between the severity of JHM and echocardiographic features of the mitral leaflets. These results suggest a common etiology for MVP and JHM, which should be investigated in future well-conducted studies.


The echocardiographic estimation of left ventricular filling pressures in patients with mitral valve stenosis
Sattarzadeh Badkoubeh R, Tavoosi A, Heidari K, Rezaei Hemami M,
Volume 68, Issue 5 (8-2010)
Abstract

Background: Estimation of Left Ventricular End Diastolic Pressure (LVEDP) among patients with Mitral Stenosis (MS) helps to diagnose diastolic dysfunction and to explain their symptoms. However, Conventional Doppler measurements have limitation in predicting of LVEDP. This study sought to establish whether the correlation between measurements derived from Tissue Doppler echocardiography and LVEDP remains valid in the setting of severe mitral stenosis.

Methods: Thirty three patients with moderate to severe MS who had indication for left heart catheterization enrolled during 1387-88 in Imam Khomeini Hospital in Tehran, Iran. The mean diastolic transmitral pressure gradient and mitral valve area (MVA) were calculated, and Two-dimensional, M-mode, color Doppler and tissue Doppler Imaging indices such as: early diastolic mitral inflow velocity (E), annular early diastolic velocity (Ea), E/A ratio, Isovolemic relaxation time (IVRT), Pulmonary Vein systolic and diastolic flow velocities, Velocity Propagation, LA size, TE-Ea, Tei Index were obtained in maximum three hours before cardiac catheterization. The echocardiography analysis was performed offline without knowledge of hemodynamic data Linear correlation and multiple linear regression were used for analysis. p< 0.05 was considered significant.

Results: In univariate analysis, E/Ea was associated with LVEDP significantly (p = 0.04, r = 0.38). There was also a significant correlation between TE-Ea and LVDP (p = 0.01, r = -0.44). In multiple linear regression Tei Index (ß = 0.4, p< 0.02), and TE-Ea (ß = 0.5, p = 0.02) were showed as independent predictors of LVEDP (R2 = 49%).

Conclusion: Although we observed a moderate correlation between Doppler measurements and LVEDP in patients with severe MS, more similar studies are required.
Effects of simvastatin with or without fenofibrate on echocardiographic findings of patients with coronary artery disease and dyslipidemia: a brief report
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.


Comparing measurements of mitral valve area by two-dimensional planimetry and continuity equation in patients with mitral stenosis
Sattarzadeh Badkoobeh R, Derakhshan L, Farhang Zand Parsa A, Pasha Meysamie A, Khosravi B, Grayly B, Jabari Sm,
Volume 70, Issue 8 (11-2012)
Abstract

Background: Measurements of mitral valve area (MVA) are essential to determine the severity of mitral stenosis (MS) and adopt the best management strategies. The aim of the present study was to compare MVA determined by two-dimensional (2D) planimetry to MVA measured by continuity equation (CE) in patients with moderate to severe MS.
Methods: We evaluated 73 consecutive patients with the diagnosis of MS scheduled for balloon mitral valvuloplasty or with moderate to severe rheumatic MS admitted at the echocardiography clinic of Imam Khomeini Hospital in 2010. Using 2D images of mitral valve obtained from paraesternal short axis view, 2D planimetry of the mitral orifice area was performed by an experienced cardiologist. MVA by CE was calculated from aortic forward stroke volume divided by transmitral time-velocity integral.
Results: The mean value of MVA by 2-D planimetry was 1.0±0.3 cm2. The average values of MVA measured by PHT and CE were 1.0±0.3 cm2 and 0.9±0.4 cm2, respectively. The MVA determined by planimetry correlated well with CE (r=0.832, standard error of estimation [SEE]= 0.166, P<0.001). The mean values of MVA calculated by CE highly correlated with those calculated by 2-D planimetry in patients presenting with both non-significant (r=0.701) and significant (r=0.761) AIs.
Conclusion: When planimetry is not feasible, such as in severe calcification of mitral valve or after percutaneous balloon valvuloplasty, CE could be an alternative method for MVA measurement in comparison with PHT.


Balloon atrial septostomy under echocardiographic guide: case series
Tabib A, Mortazaeian H, Meraji Sm, Birjandi H,
Volume 70, Issue 9 (12-2012)
Abstract

Background: Balloon atrial septostomy is an emergent procedure in pediatric cardiology. Nowadays, most patients in need of the procedure have acceptable outcomes after surgical repair. Thus, it is important to perform this procedure as safe as possible. By performing early arterial switch operation and prostaglandin infusion, the rate of balloon atrial septostomy has markedly decreased. However, not all centers performing early arterial switch repairs have abandoned atrial septostomy, even in patients who respond favorably to prostaglandin infusion.
Case presentation: In total, eight 1- to 15-day old term neonates admitted in Shahid Rajaee Heart Center in Tehran, Iran from October 2009 to February 2011, with congenital heart diseases were scheduled for balloon atrial septostomy. In six cases the procedure was done exclusively under echocardiographic guidance and in two cases with the help of fluoroscopy. Success was defined as the creation of an atrial septal defect with a diameter equal to or more than 5 mm and ample mobility of its margins.
Results: Male sex was predominant (87%) and the mean age of the neonates was six days. The diagnosis in all cases was simple transposition of great arteries. The procedure was successful in all patients with any cardiovascular complication.
Conclusion: Balloon atrial septostomy is an emergent procedure that can be done safely and effectively under echocardiographic guidance. According to the feasibility of this technique it could be performed fast, safe and effective at bedside, avoiding patient transportation to hemodynamic laboratory or referral center.


The effect of anthracyclines in minimal doses on cardiac function of children under chemotherapy
Shiva Rahimi Dehgolan, Farzad Kompani , Shahram Rahimi Dehgolan , Elnaz Tabibian ,
Volume 72, Issue 4 (7-2014)
Abstract
Background: Cardiotoxicity of anthracyclines (ANTs) in medium and high doses (more than 350 mg/m2) has been already known but it is still unclear whether or not minimal doses (lower than 350 mg/m2) can also affect cardiac function. The goal of this study was to assess the cardiotoxicity of ANTs in children under minimal doses and evaluation the association of this toxicity with probable risk factors such as age at beginning of regimen, gender or type of malignancy. Methods: In a prospective study 50 children suffering from different malignancies ad-mitted in pediatric oncology department of Besat Hospital of Sanandaj City in 2010 to 2012, under ANTs regimen (Daunorubicin, Doxorubicin) in doses lower than 350 mg/m2 were followed by serial echocardiography for 1-3 years. The deviation from normal values of echocardiographic parameters was measured for all patients in this period and even one parameter's deviation was considered as cardiac dysfunction and ANTs cardi-otoxicity. The association of this toxicity and probable risk factors was analyzed by proper statistical methods in SPSS 18th version. Results: In 22% of patients, mostly children older than 11, at least one of echocardio-graphic parameters including: ejection fraction (EF), left ventricular end systolic diame-ter (LVESD), left ventricular end diastolic diameter (LVEDD), left ventricular mass (LVM) and left ventricular posterior wall diameter (LVPWD) changed during our follow up. The most important risk factor for cardiotoxicity in this study was age at beginning of ANTs regimen. Acute myeloid leukemia (AML) had the most abnormal values among all types of malignancies. In this study there was no statistically significant as-sociation between cardiotoxicity and gender or duration of follow up. Conclusion: Anthracyclines even in doses lower than 350 mg/m2 can induce cardiac dysfunction and alter echocardiographic parameters, although these changes are not always accompanied by clinical signs or symptoms as they were in this study. So long term echocardiographic follow up and cardioprotective techniques are recommended in prescription any doses of these cardiotoxic drugs.
Comparison of echocardiographic findings in infants of mothers with gestational diabetes and healthy mothers
Semira Mehralizadeh , Majid Mirmohammadkhani , Maryam Naderi Eram , Shamsollah Noripour ,
Volume 72, Issue 8 (11-2014)
Abstract
Background: Gestational diabetes is associated with increased risk of congenital heart disease in neonates. The study was performed to evaluate the cardiac parameters in neonates of mothers with abnormal glucose tolerance test (GTT) and compare them with data of normal newborn. Methods: In a cross-sectional study in Amiralmomenin Hospital, Semnan City, Iran from April to October 2013, two groups of infants were eligible for the study. Sampling was performed in succession for the infants who were eligible. Echocardiography was performed for the babies on the second day, and cardiac parameters including interventricular septal diameter, left ventricular shortening fraction and mass, left ventricular posterior wall thickness, aortic and left atrial diameter were measured. Maternal glycemic control and HbA1c were measured indicators. Analysis with the SPSS software version 16, the Student’s t-test, Mann-Whitney and Chi-square test were performed. Results: Thirty five newborn infants of mothers with impaired GTT and newborn of 33 healthy women were studied. Birth weight, maternal age and HbA1c among infants of mothers with impaired GTT were greater than the control group (P=0.003 and P=0.000 and P=0.000 respectively). Diastolic and systolic ventricular septal thickness, ratio of diastolic ventricular septal thickness to diastolic diameter of the left ventricular posterior wall, the aortic diameter and left ventricular outflow tract diameter in infants of mothers with impaired GTT were significantly increased in comparison to data of the normal group (P=0.008, P=0.034, P=0.016, P=0.017 and P=0.020 respectively). No significant difference was reported in other diameters. Conclusion: Gestational diabetes mellitus results in changes of echocardiographic findings particularly relevant in diastolic ventricular septal thickness. The increase in wall thickness especially during diastole, is associated with pathological cardiac hypertrophy. Based on the results of the present study, cardiac hypertrophy can be related to gestational diabetes. Poor control of disease may cause or aggravate the process.
The effect of maternal gestational diabetes and HbA1c on hypertrophic cardiomyopathy of infants
Hoda Rezaie , Ahmad Naghibzadeh-Tahami, Mohammad Mehdi Bagheri ,
Volume 75, Issue 6 (9-2017)
Abstract
Background: The prevalence of gestational diabetes is increasing among pregnant women. It is associated with an increased risk of congenital heart disease, including hypertrophic cardiomyopathy. The aim of this study was to evaluate the effect of maternal diabetes control (based on HbA1c) on their hypertrophic cardiomyopathy in newborns.
Methods: This case-control study was performed on 60 neonates born in Afzalipour Hospital (Kerman University of Medical Sciences) from May to November 2014 in two groups of eligible infants using the convenience sampling method. Information about the age, sex, weight, gestational age, maternal age, obstetric history, gestational diabetes through the checklist were collected. Then Doppler echocardiography, M- Mode, Doppler tissue was conducted on two groups. Echocardiographic criteria including ventricular septal thickness and blood HbA1c mothers in both groups were compared. To compare quantitative and qualitative variables between the two groups’ Independent samples t‐test and Chi-square test was used. A significant level of 0.05 was considered in all of the statistical samples and SPSS software, ver. 20 (IBM, Armonk, NY, USA) was used to analyze the data.
Results: In this study, the birth weight of infants and the age of mothers did not differ between two groups (Respectively P=0.56, P=0.08) However, HbA1c was significantly higher in the infants of mothers with impaired glucose tolerance test (GTT) (P<0.001). In infants of mothers with impaired GTT, ventricular septal thickness was significantly higher than the healthy controls (P=0.03), Also there was a significant difference between two groups in tissue Doppler criteria (Ea) (P=0.04), In other echocardiographic criteria, no significant differences were reported (The LA/AO, LVPWT, LVEF, LVEF, LVFS, LVFS, LVEDd, LVESd, Sa and Aa, All P-values were ≥ 0.05).
Conclusion: Diabetes mellitus of mothers causes several complications in their infants. The prevalence of cardiomyopathy hypertrophy is higher in babies whose mothers have higher levels of HbA1c and a sign of poor control of blodd glucose level during pregnancy.

Cardiac involvement in patients with thalassemia major and control group: a case-control study
Toba Kazemi , Tayyebeh Chahkandi , Saideh Zanjani , Davood Jafari , Seyed Ali Moezi ,
Volume 75, Issue 10 (1-2018)
Abstract
Background: The most common cause of death in thalassemic patients is cardiac involvement especially cardiomyopathy. If the early stages of heart disease in people with thalassemia are diagnosed, mortality of patients reduced significantly. In this case-control study we compare the clinical symptoms, signs and para-clinic finding in thalassemia patients with control group.
Methods: In this case-control study, thalassemia patients who had visited in special clinic of Vali-e-Asr hospital of Birjand University Medical Sciences during January of 2013 to May of 2014 compared with normal subjects. They matched by age and sex. After explaining the aims of the project, the written consent was received from both groups. Clinical examinations including history taking and auscultation of heart and lungs were performed by Pediatrician. Moreover, using the standard methods, the measurement of height, weight and blood pressure were performed. In following, electrocardiography (ECG) was taken in both groups. Also, both groups underwent transthoracic echocardiography by one cardiologist.
Results: 42 thalassemia patients and 42 healthy subjects was compared in this study. Dyspnea was the only different symptom in the two groups. (23.8% in case and 4.8% in control P=0.01) In physical examination respiratory rate (RR) is only higher in patients with thalassemia that controls, but heart rate (HR), abnormal heart and lung sounds were not different significantly between two groups. In ECG, PR interval and QTc interval in patients with thalassemia was longer than healthy subject. In echocardiography, ejection fraction was lower but left ventricular end-diastolic diameter (LVEDD), left ventricular end-systolic diameter (LVESD) and size of the right ventricle and pulmonary artery pressure (PAP) was significantly higher than those in the control group.
Conclusion: According the result of this study, dyspnea was higher in patients with thalassemia from normal subjects and PR interval and QT interval was longer in thalassemic patients. As well as the size of the left ventricle, size of right ventricle, pulmonary artery pressure were higher than normal population. Also, LV ejection fraction was lower in thalassemia than normal population.

Prevalence of congenital heart disease among term infants with respiratory distress: a case study in Kerman
Mohammad Mehdi Bagheri , Fahimeh Sadeghi Zarandi ,
Volume 81, Issue 8 (11-2023)
Abstract

                                                            
Background: Congenital heart diseases (CHD) as one of the most common disorders in newborns are leading cause of perinatal mortality, also one of respiratory distress syndrome causes in newborns. This study aimed to determine the prevalence of congenital heart diseases in infants with respiratory distress syndrome.
Methods: This cross-sectional study is a retrospective study that surveyed congenital heart diseases in 145 term infants who were hospitalized in neonatal intensive care unit (NICU), Afzalipour hospital, Kerman. These infants were admitted to the neonatal intensive care unit from March 20, 2012 to the end of March 20, 2015 due to respiratory distress syndrome. Information was extracted from the medical records and then were entered in the checklist. Descriptive statistics (frequency, percentage), analytical (chi-square test) and SPSS version 20 software were used to analyze the data.
Results: Out of 145 infants with respiratory distress syndrome, 123 infants had congenital heart diseases. Therefore, the prevalence of congenital heart diseases in patients with respiratory distress syndrome was 84.83%. The most infants with congenital heart diseases were male (66.67%) and weighed between 3-4 kg (47.97%). More than 69% of newborns with congenital heart diseases were born by cesarean section and most of them were receiving medical treatment (85.37%). There was a significant difference between patient outcome and congenital heart diseases (P=0.018). The difference between sex, weight and type of delivery with congenital heart diseases was not significant. In terms of the prevalence of congenital heart diseases, atrial septal defect (ASD) was the most prevalent with 14.48%. After that, patent ductus arteriosus (PDA) was the most prevalent with 11.72%.
Conclusion: Due to the high prevalence of congenital heart diseases in term children with respiratory distress syndrome, all term infants with symptoms of respiratory distress syndrome need cardiac examination, especially echocardiography to diagnose the cause. In addition, due to the high mortality of infants with congenital heart diseases with symptoms of respiratory distress syndrome, the need for more, more accurate and complete care of these infants is suggested.


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