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Renal artery stenosis in patients with coronary artery disease: the prevalence and risk factors, an angiographic study
Edalati Fard M, Khatami Smr, Sadeghian S, Salari Far M,
Volume 68, Issue 6 (6 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.


Association between atherosclerosis and parenchymal lung involvement in systemic sclerosis
Isa Khaheshi, Taraneh Faghihi Langroudi , Sima Salimi, Marjaneh Karimi, Abbas Arjmand Shabestari , Maral Edalati, Shahabeddin Gorji, Elham Mahmoudi ,
Volume 78, Issue 4 (July 2020)
Abstract
Background: Systemic sclerosis is an autoimmune disease affecting connective tissues, (including epidermal, subepidermal, microvasculature, etc.), leading to various extent of end-organ damage. The leading cause of mortality among these patients is lung involvement. The cardiovascular events happen more frequently in patients suffering systemic scleroderma, comparing to healthy population. This study was designed to clear the correlation between development of coronary calcification (as an indicator of atherosclerosis) and lung disease in these patients.
Methods: All patients with definite diagnosis of systemic sclerosis, who referred to Shahid Modarres Hospital between March 2011and March 2014, entered to the study. Patients suffering hypertension, hyperlipidemia and who had a past or current history of smoking were excluded from the study. Atherosclerosis was determined by coronary calcium score (based on Agatston score) and the severity and extent of lung disease was assessed by wells scoring system and Warrick scoring system (based on lung CT scan without contrast). The spearman correlation analysis was done on the data by SPSS software, version 20 (IBM SPSS, Armonk, NY, USA). All the patients had informed consent and no additive charge was delivered.
Results: The study population consisted of 25 patients with systemic sclerosis. 21 patients were female and the 4 other ones were male. The mean age was 67±4 years old. The mean Wells score in patients was 13±2.59, the mean Warrick severity score was 6.54±6.16 and the mean Warrick extent score was 14.42±14.59. No correlation was observed between presence of calcification in coronary arteries (Wells score r2=0.63  P=0.77, severity score r2=0.27, P=0.2, extent score r2=0.11, P=0.6), aorta annulus (Wells score r2=0.04, P=0.83, severity score r2=0.06, P=0.77, extent score r2=0.06,  P=0.76) and thoracic aorta (Wells score r2=0.05, P=0.83, severity score r2=0.03, P=0.9, extent score r2=0.03, P=0.9) with the severity and extent of lung involvement.
Conclusion: It seems that the presence of coronary atherosclerosis or calcifications in aorta annulus and thoracic aorta (assessed by Agatston calcium score) has no significant correlation with the severity and extent of lung disease (assessed by Wells and Warrick score) in patients with systemic sclerosis.

Evaluation of lung transplant patients in Imam Khomeini hospital, Tehran university of medical sciences
Tayebeh Lakzaei, Niloofar Khoshnam-Rad , Maryam Edalatifard , Hamidreza Abtahi,
Volume 81, Issue 3 (June 2023)
Abstract
Background: Despite the progress of medical science and organ transplantation, lung transplantation is associated with significant complications and mortality. In Iran, the first lung transplant was performed in 2000 at Imam Khomeini Hospital in Tehran. So far, there has been no assessment of the patients. The main purpose of this study is to investigate the status of lung transplantation status at this center.
Methods: In this retrospective longitudinal study, all lung transplant patients referred to the Lung Transplantation Center of Imam Khomeini Hospital in Tehran from April 2000 to March 2022 were examined. Demographic and clinical data, and information related to their current status, including pulmonary function tests, transplant-related complications, pharmacotherapy, and drug-related adverse events were recorded. Appropriate statistical analysis was applied.
Results: During the study, 20 lung transplants were observed, 20 percent of transplant recipients were women, and 80 percent were men. The mean age of the patients at the time of transplantation was 39.3±11.4 years. The youngest patient at the time of transplantation was 22, and the oldest was 60 years old. The most common indication for transplantation was interstitial lung disease (70%) followed by chronic obstructive respiratory disease. The average forced expiratory volume in one second (FEV1) value of the patients in the first year was about 50%, which gradually decreased to less than 20 percent in the fifth year. The average survival after transplantation was 5.75±4.6 years. The post-transplant one month, three months, one year, three years, and five years survival were 80, 75, 70, 60, and 50 percent, respectively. Chronic lung allograft dysfunction and serious infections are the most common causes of mortality.
Conclusion: The transplant center at Imam Khomeini Hospital is one of the most important lung transplant centers in Iran. The survival status and transplant outcome are comparable with those reported around the world. More attention should be paid to infection control, patient selection, and perioperative care to improve the outcomes of lung transplantation.

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