background: keeping the patient in a sitting or semi-sitting position for time-consuming oncoplastic breast surgery is a major challenge for anesthesiologists due to several considerations. this cohort study was conducted on two groups of patients undergoing breast surgery. methods: study participants were categorized into two groups: one group was composed of normotensive women (group a) and t...

background: etomidate and propofol are common anesthetic agents. previous studies say that etomidate can be used in patients with limited hemodynamic reserve and propofol can lead to more hemodynamic instabilities. th is study was performed to explore the cardiovascular response during the induction of anesthesia with etomidate or for comparison, propofol in elective orthopedic surgeries. mater...

hemodynamic changes are major hazards of general anesthesia and are probably generated by direct laryngoscopy and endotracheal intubation. we designed this prospective randomised study to assess the cardiovascular changes after either laryngeal mask airway (lma), face mask (fm) or endotracheal tube (ett) insertion in the airway management of adult patients anesthetised with nitrous oxide and ha...

To investigate the electrocardiographic and hemodynamic changes in isolated right ventricular infarction, 0.25 ml or 0.5 ml of metallic mercury was injected into the right coronary artery of 14 closedchest dogs. At autopsy, at least 60% of the right ventricle was necrotic in every dog. Heniodynamic observations were made in 11 and electrocardiographic mapping was performed in all 14 dogs. Right...

DESPITE a vast amount of work devoted to the subject the nature of the fundamental hemodynamic changes in chronic, human hypertension is poorly understood. In this necessarily brief discussion the main outlines of the problem will be sketched in emphasizing the respective roles of the heart, large arteries and resistance vessels. Other factors such as the sympathetic nervous system, the barorec...