A 43-year-old woman was diagnosed with an intravenous leiomyomatosis at a previous hospital and transferred to our hospital to undergo surgical treatment. Emergency one-stage operation for coincidental removal of intra-abdominal, right atrial, and intravenous masses were planned. Upon arriving at the operating room, she suffered a sudden onset of severe dyspnea and showed hemodynamic instabilit...

The dynamics of supercoiled DNA play an important role in various cellular processes such as transcription and replication that involve DNA supercoiling. We present experiments that enhance our understanding of these dynamics by measuring the intrinsic response of single DNA molecules to sudden changes in tension or torsion. The observed dynamics can be accurately described by quasistatic model...

Introduction: The aim of this study was to evaluate the efficacy of combined intratympanic and systemic steroid therapy compared with systemic steroid therapy alone in idiopathic sudden sensorineural hearing loss (ISSNHL) patients with poor prognostic factors.     Materials and Methods: Seventy-seven patients with sudden sensorineural hearing loss (SSNHL) who had at least one poor prognostic fa...

introduction: natural and unexpected death that happens within less than one hour of first symptom occurrence is called sudden death. cardiovascular diseases are the main known reason of sudden death and more than 75% of sudden deaths in athletes are assigned to it. here we reported the autopsy results of all cases with sudden death following exercise that were referred to forensic center of te...

regular participation in intensive physical exercise is associated with electro-morphological changes in the heart.   this benign process is called athlete’s heart. athlete’s heart resembles few pathologic conditions in some aspects. so differentiation of these conditions is very important which otherwise may lead to a catastrophic event such as sudden death. the most common causes of sudden de...

The main aim of this paper is to study the material removal phenomenon using the finite element method (FEM) analysis for orthogonal cutting, and the impact of cutting speed variation on the chip formation, stress and plastic deformation. We have explored different constitutive models describing the tool-workpiece interaction. The Johnson-Cook constitutive model with damage initiation and damag...

The paper deals with the determination of synchronous machine parameters using a 2D Finite Element Method – FEM (Flux2DCedrat). Simulations of no-load sudden three phase shortcircuits are performed in rotation, the saturation effects and the eddy currents in the rotor solid iron parts are also taken into account. Comparisons between calculations and measurements for two large existing units (tu...

Vertebral artery injury (VAI) is a rare but serious complication of cervical spine surgery. Instrumented posterior surgery of the upper cervical spine places the vertebral artery at the highest risk of injury. However, VAI during removal of cervical internal fixation is really rare and unexpected. We present a case of 52-year-old male patient who suffered VAI during removal of C1-C2 pedicle scr...

Intraventricular hemorrhage (IVH) is a neurological urgency with a high mortality and unfavorable prognosis. Fast removal of intraventricular blood should be considered as a priority. The current treatments of IVH mainly focus on external ventricular drain and endoscopic aspiration, but neither way can remove the blood in the fourth ventricle easily and relieve the compression of brainstem. Her...