background: about half of all patients who undergo mitral valve surgery suffer from atrial fibrillation (af). cox described the surgical cut-and-sew maze procedure, which is an effective surgical method but has some complications. this study was designed to evaluate the efficacy of a substitution method of radiofrequency ablation (rfa) for patients undergoing mitral valve surgery with af. metho...

purpose: to evaluate the ability to predict visual outcome after penetrating keratoplasty (pkp) in patients with pseudophakic or aphakic corneal edema (pce or ace). methods: medical records of 34 patients (34 eyes) who underwent pkp for pce or ace during 1994-2004 in ahvaz were retrospectively analyzed for variables in the history and ocular examination before pkp and visual outcome after pkp. ...

Background: Patients undergoing cardiac surgery are at increased risk of bleeding due to multifactorial coagulopathies. In the present study, we aimed at investigating the changes in platelet count and function during and after surgery as well as determining the association of the platelet dysfunction with bleeding and transfusion requirements in these patients.    Methods: A total o...

Background: Weaning from mechanical ventilation in the intensive care unit is an important step in the treatment process. More patients in less than 6 hours after cardiac surgery can be separated from mechanical ventilation and extubated. However, 20-40% of patients after cardiac surgery, due to dysfunctional ventilator weaning response (DVWR), still remain under mechanical ventilation. Therefo...

introduction hypertrophic pyloric stenosis (hps) is among common gi disorders in young infants, with an incidence of 1-2:1000 live births in the world. in this study, we wanted to investigate the correlation between duration of symptoms before surgery and eradication of symptoms after pyloromyotomy in hps.   materials and methods one hundred and twenty five (102 boys and   23 girls) patients wi...

background: this randomized controlled study was designed to compare the postoperative analgesic efficacy of intraperitoneal ketamine versus bupivacaine in patients undergoing laparoscopic cholecystectomy. methods: we randomly divided 60 patients undergoing elective laparoscopic cholecystectomy into two groups. the intervention group patients received intraperitoneal ketamine (0.5 mg/ kg) dilut...

advancements in medical science have led to the development of complex surgeries that improve survival in patients with liver disease. assessments of the indications and contraindications for surgery and risk factors are the most important steps prior to any surgery in this population. particular attention is essential to assess for the presence of pre-surgical ascites, hepatic encephalopathy a...

objectives: the purpose of the present study was to evaluate the effect of modified widman flap (mwf) surgery (as a periodontal treatment procedure) on maximum bite force (mbf; as an indicator of patient function). materials and methods: in this clinical trial, 24 patients were examined for their mbf before and at one, four and eight weeks after their mwf surgery. these recordings along with th...

background prolonged intensive care unit (icu) and hospital stay after cardiac surgery is vitally important and is influenced by both intraoperative and postoperative factors. objectives this randomized clinical trial study was designed to assess whether vitamin c supplementation could reduce the length of icu and hospital stay in post-cardiac surgery patients. patients and methods two hundred ...