13 nəticələr
Spontaneous aneurysm subarachnoid hemorrhage (SAH) occurs annually in approximately 400 people in Denmark. SAH is most commonly seen in younger (median age 56 years) and women (71%), have a high mortality (21-44%) and result in a poor neurological outcome in about 50% of patients. Due to the
In chronic heart failure (CHF) patients sleep disordered breathing mainly comprises two different entities: obstructive sleep apnea (OSA) and central sleep apnea with Cheyne-Stokes respiration (CSA). Being a rare disease in the general population, CSA is found with a prevalence of up to 40% in CHF
OSA is a common sleep disorder characterized by repeated collapse of the upper airway during sleep causing bouts of hypercapnia and hypoxia, typically followed by arousal, hyperventilation and a subsequent apnea. The resultant swings in blood gases and fragmented sleep have been associated with
The moderate hyperventilation resulting in hypocapnia as well as hyperoxia are common features of mechanical ventilation during general anesthesia. While mild hyperventilation is routinely advocated in laparoscopic surgical interventions, increased FiO2 is set to reinforce safety of respiratory
Background
Patients with acute myocardial ischemia receive oxygen as a standard measure of care to maintain or improve the myocardial oxygen supply. In 1975 Neil et al. were able to show that higher oxygen concentration reduces myocardial blood flow. However, since the oxygen concentration in the
Cerebral autoregulation (CA) is a complex mechanism that serves the essential and vital purpose of controlling cerebral blood flow and metabolism. A stable and optimal brain blood flow is imperative for normal brain function; therefore normal function of CA is crucial for brain health. Diabetes
Preterm infants are at increased risk of brain damage compared with term infants, and cerebral hypoxia is considered to have an important role. The preterm infants are at increased risk of respiratory distress, episodes with low oxygenation, mechanical ventilation, risk of hypocapnia and labile or
Preterm infants are at increased risk of brain damage compared with term infants, and cerebral hypoxia is considered to have an important role. The preterm infants are at increased risk of respiratory distress, episodes with low oxygenation, mechanical ventilation, risk of hypocapnia and labile or
While pulmonary hypertension is frequently present in COPD, particularly in the presence of hypoxemia, it is generally limited to a mild increase in mean pulmonary artery pressure in the face of a normal cardiac output.
Apart from this classical and widely observed profile of PH with modestly
Obstructive sleep apnea (OSA) is a frequently underdiagnosed condition that has emerged as an increasing medical problem with important social and financial implications worldwide. Its prevalence may reach 25% in middle-aged men and 11% in women. The most important risk factor for OSA is obesity -
The rationale for this study comparing different types of anesthetic maintenance is based on the amount of systemic metabolic breakdown and the low repartion rates within the various tissues and the very rapid elimination of desflurane in respect to the other common inhalation and intravenous
Background
During facial cooling and especially during breath hold, can mammals - and also humans - elicit a so called dive reflex, causing bradycardia, peripheral vasoconstriction and centralization of blood flow to brain, lungs and heart (18 Foster et al 2005), but the reflex is suppressed by