Search for dissertations about: "Ventilatory response"

Showing result 1 - 5 of 27 swedish dissertations containing the words Ventilatory response.

  2. 1. Ventilation and Lung Volume During Sleep and in Obstructive Sleep Apnea

    Author : Jonas Appelberg; Göran Hedenstierna; Christer Janson; Karl Franklin; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Physiology; Sleep; Ventilation; Sleep apnea syndromes; Snoring; Lung volume; Respiration; Computed tomography; Ventilatory response; Ventilation-perfusion; Airway closure; Fysiologi; Physiology; Fysiologi; klinisk fysiologi; Clinical Physiology;

    Abstract : Obstructive sleep apnea (OSA) appears to affect up to 5% of the population. The extent to what pulmonary function awake and during sleep relates to obstructive breathing and hypoxemia during sleep in these patients is unclear. READ MORE

  4. 2. Volatile anesthetic agents and hypoxic ventilatory responses in humans

    Author : Dick Sjögren; Karolinska Institutet; Karolinska Institutet; []
    Keywords : anesthesia; volatile; isoflurane; sevoflurane; isocapnia; poikilocapnia; human; hypoxic ventilatory response;

    Abstract : Control of breathing in humans is regulated through a network of different nervous and chemical mechanisms, in the central nervous system as well as in peripheral structures. One important stimulus for this control is the decrease in arterial oxygen tension, PaO2, in blood, which leads to an increased ventilation. READ MORE

  5. 3. Haemodynamic and ventilatory effects of laparoscopic surgery

    Author : Lena Andersson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Laparoscopy; C02 pneumoperitoneum; indicator- dilution technique; central haemodynamics; cardiac output; central blood volume; venous occlusion plethysmography; catecholamines; multiple inert gas technique; shunt; abdominal wall lift; intrathoracic pressure; ventilation-perfusion matching; atelectasis; spiral computed tomography.;

    Abstract : Background: It has been shown repeatedly that the establishment of pneumoperitoneum (PP) is associated with increased cardiac filling pressures, as well as increased blood pressure and systemic vascular resistance. Patients without heart or lung disease can compensate for these effects of PP, but cardiopulmonary compromised patients may develop cardiac failure during PP. READ MORE

  6. 4. Gender differences in perinatal morbidity and long term consequences of preterm birth

    Author : Emma Elsmén; Lund Pediatrik; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; morbidity; neonatal; gender; IL-1ra; salivary cortisol; blood pressure; circulatory; mortality; obstetrical complications; ventilatory twins;

    Abstract : Newborn male infants have higher morbidity and mortality than female infants. Male fetal gender is associated with an overall increased risk of preterm birth and complications related to pregnancy are overrepresented in women carrying male fetuses. READ MORE

  7. 5. Breathe without pain : Clinical and experimental studies in patients and volunteers with special reference to ventilatory regilation

    Author : Anders Johnson; Linköpings universitet; []
    Keywords : MEDICINE; MEDICIN;

    Abstract : The major aims were, first, to study the advantages and disadvantages of intrathecal analgesia with bupivacaine and morphine with special reference to ventilation and pain relief and, second, to develop a method for studies of the ventilatory response to carbon dioxide and hypoxaemia in volunteers and in patients with varying degrees of ventilation-perfusion ratios.341 elderly patients undergoing major hip surgery perfonned under intrathecal analgesia or general anaesthesia and 31 young and healthy volunteers participated in this work. READ MORE