background: expanding cities with rapid economic development has resulted in increased energy consumption leading to numerous environmental problems for their residents. the aim of this study was to investigate the correlation between air pollution and mortality rate due to cardiovascular and respiratory diseases in shiraz. methods: this is an analytical cross‑sectional study in which the corre...

background: considering the occurrence of medical emergencies in dental practice, and the essential need of acquiring competency in basic life support (bls), the aim of the present study was to evaluate the effect of bls workshop on the skills of dental students in the cardiopulmonary resuscitation. methods: in this switching replication experimental study, students in the 5th year of mashhad d...

conclusions systemic arterial leukocyte filtration reduces the intubation time but has no other beneficial effect on the outcome of patients undergoing cabg or valve surgery. results the postoperative intubation time was significantly shorter in patients with leukocyte filters (0.014). there was no significant difference between two groups regarding other outcome relatedvariables. patients and ...

Renin-angiotensin system activation is suspected of being involved in postcoronary surgery hypertension, but appears to be useful in maintaining blood pressure during anesthesia and cardiopulmonary bypass. To clarify these points, 19 patients were compared: ten as a control group and nine who received captopril during two days before surgery. Anesthesia was the same for the two groups, and card...

Pupil diameter is used during anaesthesia to assess depth of anaesthesia and indicate cerebral hypoxia. This is especially so during cardiac bypass when other autonomic signs cannot be monitored. We have used a pupillometer to determine the effect of cardiopulmonary bypass on the pupil. We have also investigated if any effect was caused by washout of opioid from the central nervous system by al...

We have developed and report on a simplified cardiopulmonary bypass technique for experiments on implantable ventricular assist devices in calves. We used an electromechanical implantable ventricular assist device with a double cylindrical cam in three calves. Cannulas for the ventricular assist system were designed to be inserted between the left atrium and the descending aorta. We used the ou...

OBJECTIVES During cardiac surgery it is sometimes necessary to examine heart chambers remote from the site of surgery. Similarly visualization of the pulmonary arterial tree will enable assessment for the completeness of pulmonary embolectomy. There are no standard adjunctive procedures to accomplish this. Left ventriculotomy used to examine the left ventricle, and maneuvers used to ensure comp...

Previous models combining the human cardiovascular and pulmonary systems have not addressed their strong dynamic interaction. They are primarily cardiovascular or pulmonary in their orientation and do not permit a full exploration of how the combined cardiopulmonary system responds to large amplitude forcing (e.g., by the Valsalva maneuver). To address this issue, we developed a new model that ...