purpose: to compare the refractive results of penetrating keratoplasty (pk) in two groups of patients with keratoconus undergoing corneal grafting with different amounts of donor-recipient disparity (0.25 and 0.5 mm). methods: as a randomized clinical trial and after performing a complete ocular examination and vitreous length measurement, 30 patients with keratoconus were randomly assigned in ...

background hepatitis c virus (hcv) infection still exists as a health concern among the transplant patients. because of the severity of the disease, different responses to treatment, and side effects resulting from long therapeutic period, determination of genotypes and viral loads can help choose the best treatment protocols. objectives this study aimed to determine the hcv genotypes and its d...

background: lung diseases are one of the major causes of morbidity and mortality after renal transplantation. the aim of the study is to define the risk factors for infectious and noninfectious pulmonary complications in kidney transplant patients. materials and methods:we prospectively studied 267 patients after renal transplantation. the kidney recipients were followed-up for the development ...

Background: The most common type of apnea among premature newborns is idiopathic apnea of prematurity. Recurrent apnea can lead to hypoxemia and central nervous system damage. Although caffeine and theophylline are the most commonly prescribed drugs in this field, there is disagreement about which medicine is preferred. The purpose of this study was to compare the ther...

human cytomegalovirus (hcmv, cmv) is a major infectious complication of renal transplantation. the objective of this survey was to optimize and establish a polymerase chain reaction (pcr) technique for rapid and early detection of cmv disease in renal transplant recipients. in a cross sectional study, a total of eighty-one edta-blood samples were collected as simple nonrandomized (sequential) w...