A modified critical-incident analysis technique was used in a retrospective examination of the characteristics of human error and equipment failure in anesthetic practice. The objective was to uncover patterns of frequently occurring incidents that are in need of careful prospective investigation. Forty-seven interviews were conducted with staff and resident anesthesiologists at one urban teach...

purpose: to determine the indications for and surgical techniques of corneal transplantation at labbafinejad medical center (lmc) from 2004 to 2007. methods: in this descriptive study, records of 756 patients who had undergone corneal transplantation from october 2004 to october 2007 were reviewed. results: overall, 504 male (64.9%) and 272 female (35.1%) subjects with mean age of 41.29±21.25 (...

background and objectives: there are a few studies on histopathologic type of oral lesions especially from iran. the aim of this study was to survey the oral lesions in babol, northern iran. methods: the histopathology records were retrospectively reviewed for all lesions of oral cavity and jaws, during the years 1990 to 2009. the data were collected from the archive of pathology and analyzed ...

Background: Malignant melanoma is the leading cause of death among skin cancers in western countries. However, the incidence, histologic subtypes, and tumor behaviors are quite different in Asians and western populations. Objective: This study was designed to survey the clinicopathological aspects of malignant melanoma among Khouzestan people. Patients and Methods: In a retrospective stud...

OBJECTIVE To determine whether a cluster of eight cancers among 572 women who had received transcervical quinacrine hydrochloride was a random occurrence or evidence of an increased risk of cancer. DESIGN Retrospective cohort study using interviews and reviews of medical records. Cancer cases were evaluated using cohort analyses and space-time cluster methods. SETTING Santiago and Valdivia,...

A retrospective study of breastfeeding patterns in a socioeconomically homogeneous sample of 2520 mothers visiting Mexican outpatient clinics was conducted. During May and June 1975, mothers attending the outpatient departments of 4 clinics of the Mexican Social Security Institute (IMSS) were interviewed. The mothers ranged in age from 15 to 48 years. In 56.1% of the cases, the child's fathe...

Background: Psoriasis is a common and genetically determined skin disease, which is frequent throughout the world. Objective: To perform a descriptive clinical study of 200 cases of psoriasis in Ahwaz. Patients and Methods: This study was performed from November 1997 to April 1999 on 200 psoriatic patients attended a private skin clinic in Ahwaz. Data were collected from patients and entered in...

In this series we present the results of a retrospective analysis of 66 vasovasostomy procedures performed between 1983 and 1991. Obstructive intervals and serum antisperm antibodies were correlated with pregnancy and patency rates. With obstructive intervals of less than 5 years a patency rate of 100% (31/31) was obtained. Even more than 10 years after reversal, pregnancy occurred in 25% (2/8)...