The changes in systemic arterial oxygen saturation and interatrial mean pressure difference as a consequence of balloon atrial septostomy in 75 infants with transposition of the great arteries have been reported. The technique is effective in raising the arterial oxygen saturation and lowering the interatrial pressure difference. There was no relation between survival and the arterial oxygen sa...

background: systolic blood pressure (sbp) and diastolic blood pressure (dbp) are a multi-factorial traits and significantly heritable.glutathione s-transferase (gst) enzyme is involved in detoxification of reactive oxygen species. the present study aimed at finding out the association between gstm1 and gstt1 polymorphisms and mean arterial pressure (map) in iranian population. map, as the impor...

background:  patients undergoing cemented hip hemiarthroplasty may develop bone cement implantation syndrome (bcis) which is a leading cause of intraoperative complications. the purpose of this study was to evaluate cardiovascular changes during cemented hip hemiarthroplasty in elderly patients.   methods:  cemented hip hemiarthroplasty was performed on 72 patients with femoral neck fracture. a...

In a postasphyxia neonatal lamb model, the responses of the cerebral circulation to hypoxic hypoxia and changes in systemic arterial blood pressure were examined. Ventilated newborn lambs (n = 14) were subjected to a gradual asphyxial insult, resuscitated, and returned to control ventilator settings. During the time 2-5 hours after asphyxia, the responses of cerebral blood flow (CBF), cerebral ...

Considering the growing trend of laryngeal surgeries and the need to protect the airway during and after surgery, among several therapeutic regimens to induce sedation, two regimens of propofol-fentanyl and propofol-midazolam were compared in microlaryngeal surgeries. Forty ASA I-II class patients undergoing microlaryngeal surgeries and referring routinely for postoperative visits were randomly...

background: the aim of this study was to evaluate the effect of two injections doses of magnesium sulfate for controlling and reducing hemodynamic changes caused by laryngoscopy and endotracheal intubation in pregnant women who were candidates for caesarean section with general anesthesia. methods: in this controlled randomized double-blind clinical trial, 165 pregnant women who were candidates...

BACKGROUND Severe cardiogenic pulmonary edema is a frequent cause of respiratory failure, and many patients with this condition require endotracheal intubation and mechanical ventilation. We investigated whether continuous positive airway pressure delivered by means of a face mask had physiologic benefit and would reduce the need for intubation and mechanical ventilation. METHODS We randomly ...

The Surviving Sepsis Campaign targets central venous pressure, mean arterial pressure, and central venous oxygen saturation as guides for resuscitation. Fluid resuscitation and the use of vasopressors are paramount to the success of the campaign's end points. Although the achievement of supranormal physiologic parameters has been associated with higher mortality in some studies, these slightly ...

Methods for improving oxygenation in infants mechanicaily ventilated for severe hyaline membrane disease. The effect on arterial blood gas tensions, aortic blood pressure, and intra-oesophageal pressure of altering inspiration: expiration ratio and pressure during expiration was investigated in 9 infants being treated by mechanical ventilation for very severe hyaline membrane disease. The resul...

Arterial blood gas analysis, the focus of this article, provides a fuller and more accurate ”gold standard” assessment of blood oxygenation status. It allows generation, not only of oxygen saturation (in arterial blood) sO2(a), but a number of further oxygen-related parameters, including the partial pressure of oxygen in arterial blood, pO2(a) and the total oxygen concentration of arterial bloo...