Azin Seifi - Academia.edu (original) (raw)
Papers by Azin Seifi
international cardiovascular research journal, Sep 1, 2017
Journal of Physics Condensed Matter, Jan 22, 2014
We consider the effective pseudo-Casimir interaction forces mediated by a nematic liquidcrystalli... more We consider the effective pseudo-Casimir interaction forces mediated by a nematic liquidcrystalline film bounded by two planar surfaces, one of which imposes a random (disordered) distribution of the preferred anchoring axis in the so-called easy direction. We consider both the case of a quenched as well as an annealed disorder for the easy direction on the disordered surface and analyze the resultant fluctuation-induced interaction between the surfaces. In the case of quenched disorder, we show that the disorder effects appear additively in the total interaction and are dominant at intermediate inter-surface separations. Disorder effects are shown to be unimportant at both very small and very large separations. In the case of annealed disorder its effects are non-additive in the total inter-surface interaction and can be rationalized in terms of a renormalized extrapolation length.
Introduction: Cardiac hydatid cysts are rare and represent less than 2% of all hydatid cases. The... more Introduction: Cardiac hydatid cysts are rare and represent less than 2% of all hydatid cases. They can occur as part of a widespread systemic infection or an isolated event. Case Presentation: Here, we presented a case of cardiac hydatid cyst in interventricular septum. Conclusions: The case presented had some findings that suggested the specific diagnosis of hydatid cyst. Implication for health policy/practice/research/medical education: It is a fantastic case of cardiac hydatid cyst in interventricular septum.
Journal of Cardiovascular Magnetic Resonance, 2015
Results The mean percentage of scar tissue in those who had RVEF 45%, that was statistically sign... more Results The mean percentage of scar tissue in those who had RVEF 45%, that was statistically significant.(P-value= 0.0001). The overall accuracy of the test to identify patients with RVEF 150 ml/m 2 were 87% and 62%, respectively; PPV=70% and NPV=83%.The relation of fQRS and RV end systolic volume index was statistically meaningful. (P-value=0.02)The sensitivity and specificity of fQRS in identifying patients with RVESVI>82 ml/m 2 were 80% and 66%, respectively; PPV=80% and NPV=66%. The relation of mean right ventricular diastolic and systolic diameter with RVEF was statistically considerable according to the P-value=0.0001 and 0.001, respectively; without any meaningful relationship between RV diastolic diameter and fQRS. (P-value=0.1)And there was relationship between RV diastolic diameter and fQRS. (Pvalue=0.014)There was a strong inverse linear relationship between the number of fQRS edges and RVEF (r=0.77, Pvalue=0.0001) in addition to a strong positive linear correlation be...
international cardiovascular research journal, 2018
Congenital absence of the pericardium is a rare abnormality that can be diagnosed by cardiac imag... more Congenital absence of the pericardium is a rare abnormality that can be diagnosed by cardiac imaging procedures. A 49-year-old male needed medical attention due to the appearance of palpitation with a systolic murmur, and a notable aortic arch deviation was seen in the chest X-ray. In the echocardiogram, a poor echo window was detected. A cardiac magnetic resonance imaging (MRI) showed a rare concomitant anomaly of partial absence of the pericardium including a rare defect of the right-sided aortic arch. Using cardiac MRI, the pericardium can be easily visualized, and thus, its absence more easily detected, aiding appropriate clinical decision-making.
ARYA atherosclerosis, 2016
Isolated left ventricular apical hypoplasia with several different unrecognized dimensions is a n... more Isolated left ventricular apical hypoplasia with several different unrecognized dimensions is a newly discovered congenital anomaly of the heart. In this report, we describe a case of cardiomyopathy of this type occurring in a 13-year-old male with a history of mental retardation and sudden cardiac death (SCD) of second-degree relatives. The patient was referred for an evaluation of cardiac status. An echocardiography analysis demonstrated a spherical left ventricle (LV) appearance with mild mitral regurgitation. Cardiac magnetic resonance imaging (MRI) confirmed a spherical and truncated LV appearance. The right ventricle was found to have elongated and wrapped around the LV, and diverticulum was also seen in the cardiac MRI. To the best of our knowledge, this is to present the first case of LV apical hypoplasia combined with LV diverticulum and a family history of SCD. As more cases featuring this cardiomyopathy type are recognized, it will be easier to elucidate the natural histo...
Razavi International Journal of Medicine, Nov 1, 2014
Introduction: Left ventricular pseudo aneurysm is an interesting clinical entity. The left ventri... more Introduction: Left ventricular pseudo aneurysm is an interesting clinical entity. The left ventricular (LV) pseudo aneurysm, in contrast to a true LV aneurysm, contains only pericardial layer and fibrous elements in its wall. Case Presentation: We report a very rare case of a 47-year-old woman presents with an atypical form of LV apical pseudo aneurysm confirmed by cardiac magnetic resonance imaging (CMRI). Discussion: Due to the tendency of LV pseudo aneurysms to rupture, early surgical intervention is recommended.
Archives of Cardiovascular Imaging, 2013
Introduction: Cardiac hydatid cysts are rare and represent less than 2% of all hydatid cases. The... more Introduction: Cardiac hydatid cysts are rare and represent less than 2% of all hydatid cases. They can occur as part of a widespread systemic infection or an isolated event. Case Presentation: Here, we presented a case of cardiac hydatid cyst in interventricular septum. Conclusions: The case presented had some findings that suggested the specific diagnosis of hydatid cyst.
The American Journal of Cardiology, Mar 1, 2015
international cardiovascular research journal, Sep 1, 2017
Journal of Physics Condensed Matter, Jan 22, 2014
We consider the effective pseudo-Casimir interaction forces mediated by a nematic liquidcrystalli... more We consider the effective pseudo-Casimir interaction forces mediated by a nematic liquidcrystalline film bounded by two planar surfaces, one of which imposes a random (disordered) distribution of the preferred anchoring axis in the so-called easy direction. We consider both the case of a quenched as well as an annealed disorder for the easy direction on the disordered surface and analyze the resultant fluctuation-induced interaction between the surfaces. In the case of quenched disorder, we show that the disorder effects appear additively in the total interaction and are dominant at intermediate inter-surface separations. Disorder effects are shown to be unimportant at both very small and very large separations. In the case of annealed disorder its effects are non-additive in the total inter-surface interaction and can be rationalized in terms of a renormalized extrapolation length.
Introduction: Cardiac hydatid cysts are rare and represent less than 2% of all hydatid cases. The... more Introduction: Cardiac hydatid cysts are rare and represent less than 2% of all hydatid cases. They can occur as part of a widespread systemic infection or an isolated event. Case Presentation: Here, we presented a case of cardiac hydatid cyst in interventricular septum. Conclusions: The case presented had some findings that suggested the specific diagnosis of hydatid cyst. Implication for health policy/practice/research/medical education: It is a fantastic case of cardiac hydatid cyst in interventricular septum.
Journal of Cardiovascular Magnetic Resonance, 2015
Results The mean percentage of scar tissue in those who had RVEF 45%, that was statistically sign... more Results The mean percentage of scar tissue in those who had RVEF 45%, that was statistically significant.(P-value= 0.0001). The overall accuracy of the test to identify patients with RVEF 150 ml/m 2 were 87% and 62%, respectively; PPV=70% and NPV=83%.The relation of fQRS and RV end systolic volume index was statistically meaningful. (P-value=0.02)The sensitivity and specificity of fQRS in identifying patients with RVESVI>82 ml/m 2 were 80% and 66%, respectively; PPV=80% and NPV=66%. The relation of mean right ventricular diastolic and systolic diameter with RVEF was statistically considerable according to the P-value=0.0001 and 0.001, respectively; without any meaningful relationship between RV diastolic diameter and fQRS. (P-value=0.1)And there was relationship between RV diastolic diameter and fQRS. (Pvalue=0.014)There was a strong inverse linear relationship between the number of fQRS edges and RVEF (r=0.77, Pvalue=0.0001) in addition to a strong positive linear correlation be...
international cardiovascular research journal, 2018
Congenital absence of the pericardium is a rare abnormality that can be diagnosed by cardiac imag... more Congenital absence of the pericardium is a rare abnormality that can be diagnosed by cardiac imaging procedures. A 49-year-old male needed medical attention due to the appearance of palpitation with a systolic murmur, and a notable aortic arch deviation was seen in the chest X-ray. In the echocardiogram, a poor echo window was detected. A cardiac magnetic resonance imaging (MRI) showed a rare concomitant anomaly of partial absence of the pericardium including a rare defect of the right-sided aortic arch. Using cardiac MRI, the pericardium can be easily visualized, and thus, its absence more easily detected, aiding appropriate clinical decision-making.
ARYA atherosclerosis, 2016
Isolated left ventricular apical hypoplasia with several different unrecognized dimensions is a n... more Isolated left ventricular apical hypoplasia with several different unrecognized dimensions is a newly discovered congenital anomaly of the heart. In this report, we describe a case of cardiomyopathy of this type occurring in a 13-year-old male with a history of mental retardation and sudden cardiac death (SCD) of second-degree relatives. The patient was referred for an evaluation of cardiac status. An echocardiography analysis demonstrated a spherical left ventricle (LV) appearance with mild mitral regurgitation. Cardiac magnetic resonance imaging (MRI) confirmed a spherical and truncated LV appearance. The right ventricle was found to have elongated and wrapped around the LV, and diverticulum was also seen in the cardiac MRI. To the best of our knowledge, this is to present the first case of LV apical hypoplasia combined with LV diverticulum and a family history of SCD. As more cases featuring this cardiomyopathy type are recognized, it will be easier to elucidate the natural histo...
Razavi International Journal of Medicine, Nov 1, 2014
Introduction: Left ventricular pseudo aneurysm is an interesting clinical entity. The left ventri... more Introduction: Left ventricular pseudo aneurysm is an interesting clinical entity. The left ventricular (LV) pseudo aneurysm, in contrast to a true LV aneurysm, contains only pericardial layer and fibrous elements in its wall. Case Presentation: We report a very rare case of a 47-year-old woman presents with an atypical form of LV apical pseudo aneurysm confirmed by cardiac magnetic resonance imaging (CMRI). Discussion: Due to the tendency of LV pseudo aneurysms to rupture, early surgical intervention is recommended.
Archives of Cardiovascular Imaging, 2013
Introduction: Cardiac hydatid cysts are rare and represent less than 2% of all hydatid cases. The... more Introduction: Cardiac hydatid cysts are rare and represent less than 2% of all hydatid cases. They can occur as part of a widespread systemic infection or an isolated event. Case Presentation: Here, we presented a case of cardiac hydatid cyst in interventricular septum. Conclusions: The case presented had some findings that suggested the specific diagnosis of hydatid cyst.
The American Journal of Cardiology, Mar 1, 2015