fatemeh moodi

An intramyocardial dissection hematoma is a rare event usually caused by hemorrhagic dissection among the spiral myocardial. Herein, we reported a senile man with Intramyocardial dissection hematoma who presented with neglected myocardial infarction

Today, the use of the GPS global positioning system for intra- and extra-urban transportation is a necessary and undeniable matter. Assessing the reliability and stability of intra-city bus routes has been raised as an important issue that has a great impact on the quality of bus services. In this research, the GPS global positioning system data, which is related to the Yazd City bus system, was used to evaluate the reliability and stability of city buses for intra-city transfers. One of the goals investigated in this research is to examine the parameters affecting bus bunching and analyze the stability of the system as well as the reliability of the public transportation system. In this research, section travel time, dwell time, headway, and bus bunching have been analyzed in terms of time and place. In fact, it is checked how the situation of batch movement occurrence and stability is at different times of the day. In this research, the prediction methods of Linear Regression, Support Vector Regression, Random Forest, and Gradient Boosting Regression were used to predict the reliability and stability assessment of bus travel routes. The Gradient Boosting Regression Model had a lower error and better performance for predicting the reliability of the bus travel route and headway than the rest of the prediction models. The results of this research help urban planners understand the stability of stations, identify key points that affect the stability of stations, identify key stations, and provide better transportation services in the future to reduce the waiting time of passengers.

Pericardial cysts are a scarce cause of mediastinal masses. They are usually asymptomatic, even in large sizes. Accurate diagnosis of pericardial cysts is possible with multiple diagnostic imaging modalities. A 41-year-old woman complaining of bilateral lower limb edema, exertional dyspnea, and recurrent palpitations was admitted to our emergency department. She had experienced a syncope state. Echocardiography showed a reduced right-side heart function due to a large cystic-like mass at the supradiaphragmatic right paracardiac region with a compressive effect on the right heart. A computed tomography scan confirmed the presence of a giant pericardial cyst. The patient underwent cardiac surgery to excise the mass, 15×13.5×3.5 cm in size. This case report shows that huge right-sided pericardial cysts must be considered in the differential diagnosis of right-sided heart failure. The preferable and reasonable approach to a patient with a huge pericardial cyst is surgical excision for symptom alleviation, early identification, and removal. (Iranian Heart Journal 2022; 23(4): 109-114)

One of the inclusion criteria for applying atrial septal defect (ASD) closing procedure is an increased pulmonary-to- systemic blood flow ratio (Qp/Qs). Eccentricity index (EI) is associated with ventricular dysfunction in patients with pulmonary hypertension.

As ASDpatients have overload volume and pressure in their pulmonary arteries,we tried to test this hypothesis if EI and Qp/Qs ratio are possibly associated.

This study is a correlation study. 64 patientswith primary diagnosis of secundumtype ASD enrolled in this study and echocardiography was performed for all of them. Data were analyzed by SPSS as well as descriptive and statistical tests.

Bivariate correlation test showed that therewas a positive and significant association betweenQp/Qs ratio and EI (r = 0.502, P = 0.001). Linear regression analysis showed that there was a linear association between Qp/Qs ratio and EI (Beta = 1.765, P = 0.001).

We found that EI and Qp/Qs ratio are significantly and positively associated and Qp/Qs ratio can be easily estimated bymeasuring EI in secundumtype ASD patients.