AANS/CNS Section on Tumors

Diagnostic Accuracy of Frozen Section in Ovarian Tumors: A 12-Year Review

Background and objective: To determine the diagnostic accuracy and pitfalls of frozen section in ovarian tumors in one of the largest university affiliated gynecologic oncology centers in Tehran, and determine the cause of discrepancies. Materials and Methods: We retrospectively analyzed the results of frozen section and permanent diagnoses of ovarian masses by reviewing the reports in the dep...

Perioperative frozen section examination in parotid gland tumors.

CONTEXT The minimal recommended surgical approach to parotid tumors is partial parotidectomy with resection of the superficial lobe of the gland. Histologic diagnosis prior to surgery is not possible, as incisional biopsies are contraindicated due to the possibility of facial nerve injury or incomplete tumor resection. Thus, the biopsies tend to be perioperative. OBJECTIVE To compare the resu...

Section] Section] Section] Section] Section] Section] Section] Section] Section] 0

Section] Section] Section] Section] Section] Section] Section] Section] Section] Section] 0 Estimating Performance Measures in Stochastic Cyclic Schedules

This paper reviews a cyclic scheduling model of repetitive manufacturing environments consisting of exible machines and multi-stage jobs. We explicitly model two system performance measures, throughput and ow time, while incorporating variability arising from uncertainty in operation processing times. We present an iterative approximation scheme to estimate the two moment behavior of our perfor...

Section on Cardiovascular Diseases

In a previous post mortem study on sudden death from coronary artery disease in white males it was noted that individuals in sedentary occupations tended to have their fatal attacks more often at a younger age than those in more physically active occupations.1 Previously Morris in England had reported that the coronary occlusion attack rate was higher in the sedentary bus drivers as compared to...