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pneumoperitoneum/hypoxia
Odkaz sa uloží do schránky
Strana 1 od 74 výsledky
Pathogenesis of CO(2) pneumoperitoneum-induced metabolic hypoxemia in a rabbit model.
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OBJECTIVE
To investigate the effects of carbon dioxide (CO(2)) pneumoperitoneum-induced changes in blood gases, acid-base balance, and oxygen homeostasis in rabbits.
METHODS
Prospective, randomized, controlled study (Canadian Task Force classification I).
METHODS
University training and teaching
[Effects of hypoxia-inducible factor-1α on human gastric cancer cell apoptosis under in vitro CO(2) pneumoperitoneum environment].
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OBJECTIVE
To study the effect of hypoxia-inducible factor-1α (HIF-1α) on human gastric cancer cells apoptosis in simulated CO2 pneumoperitoneum environment.
METHODS
Applied closed box to simulated CO2 pneumoperitoneum environment under the pressure of 0, 5, 10 and 15 mm Hg (1 mm Hg = 0.133 kPa).
Efficacy of barriers and hypoxia-inducible factor inhibitors to prevent CO(2) pneumoperitoneum-enhanced adhesions in a laparoscopic mouse model.
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OBJECTIVE
To investigate the effects of hypoxia-inducible factor (HIF) inhibitors, flotation agents, barriers, and a surfactant on pneumoperitoneum-enhanced adhesions in a laparoscopic mouse model.
METHODS
Prospective randomized trial (Canadian Task Force classification I).
METHODS
Department of
Peritoneal mesothelial hypoxia during pneumoperitoneum is a cofactor in adhesion formation in a laparoscopic mouse model.
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OBJECTIVE
To develop a laparoscopic mouse model to evaluate the hypothesis that mesothelial hypoxia during pneumoperitoneum is a cofactor in adhesion formation.
METHODS
Prospective randomized trials.
METHODS
Academic research center.
METHODS
One hundred thirty female Naval Medical Research Institute
Role of hypoxia inducible factors 1alpha and 2alpha in basal adhesion formation and in carbon dioxide pneumoperitoneum-enhanced adhesion formation after laparoscopic surgery in transgenic mice.
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OBJECTIVE
To evaluate the role of hypoxia inducible factors (HIFs) 1alpha and 2alpha in adhesion formation after laparoscopic surgery.
METHODS
Prospective, randomized study.
METHODS
Academic research center.
METHODS
Forty Swiss/129SvJ wild-type mice and transgenic mice partially deficient for the
Carbon dioxide pneumoperitoneum, intraperitoneal pressure, and peritoneal tissue hypoxia: a mouse study with controlled respiratory support.
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BACKGROUND
Animal experiments have suggested that the laparoscopic peritoneal environment is hypoxic. This study aimed to investigate whether peritoneal tissue is hypoxic on a cellular level during a carbon dioxide (CO(2)) pneumoperitoneum at different intraperitoneal pressures (IPPs) and to
Re-insufflation after deflation of a pneumoperitoneum is a risk factor for CO(2) embolism during laparoscopic prostatectomy -A case report-.
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Although symptomatic carbon dioxide (CO(2)) embolism is rare, it recognized as a potentially fatal complication of laparoscopic surgery. Sudden hemodynamic instability could be a CO(2) embolism especially during insufflation. A 65-year-old man received laparoscopic prostatectomy for 5 hours under
Tension pneumoperitoneum in a child resulting from high-frequency oscillatory ventilation: a case report and review of the literature.
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An 18-month-old male infant was placed on high-frequency oscillatory ventilation for profound hypoxemia and subsequently developed tension pneumoperitoneum. He underwent a bedside exploratory laparotomy for suspected perforated viscus. No intestinal perforation was identified, and a diagnosis of
Tension pneumoperitoneum caused by rupture of intraabdominal soft tissue emphysema in a child supported with high-frequency oscillatory ventilation: a case report.
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Effect of pneumoperitoneum on renal tissue oxygenation and blood flow in a rat model.
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OBJECTIVE
To determine the correlation between the renal blood flow (RBF) and tissue oxygenation (PO(2)) at varying intra-abdominal pressures (IAPs) and to compare the effects on renal blood flow from carbon dioxide-induced pneumoperitoneum.
METHODS
Carbon dioxide pneumoperitoneum was established in
The influence of the CO₂ pneumoperitoneum on a rat model of intestinal anastomosis healing.
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BACKGROUND
The CO(2) pneumoperitoneum, which is used for laparoscopic surgery, causes local and systemic effects in patients. Concern arises about what the pressurized anoxic environment of the CO(2) pneumoperitoneum has on intestinal healing. Earlier experimental work showed a negative correlation
Marked pneumoperitoneum 3 weeks after percutaneous endoscopic gastrostomy.
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In November 2001, a 29-year-old woman was admitted to the hospital because of dysphagia due to an apallic state caused by cerebral anoxia. Nutritional support was maintained by nasogastric tube feeding for approximately 3 months. For improvement of the body state maintenance and quality of life, a
Peritoneal tissue-oxygen tension during a carbon dioxide pneumoperitoneum in a mouse laparoscopic model with controlled respiratory support.
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BACKGROUND
Previous animal studies suggested that the peritoneal environment during a carbon dioxide (CO(2)) pneumoperitoneum is hypoxic and that this may contribute to the formation of intra-abdominal adhesions or the growth of malignant cells. There is no study, however, that investigates the
Maternal insufflation during the second trimester equivalent produces hypercapnia, acidosis, and prolonged hypoxia in fetal sheep.
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BACKGROUND
Anecdotal reports suggest that the second trimester is the safest time to conduct a laparoscopic procedure on a pregnant patient, but this supposition has not been tested empirically.
METHODS
Previously instrumented preterm sheep (total n = 8) at gestational day 90 (term, 145 days) were
The addition of O2 to the CO2 does not prevent the systemic effects of the CO2 pneumoperitoneum in a rabbit model.
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CO2 pneumoperitoneum used in endoscopic surgery induces systemic effects by CO2 absorption. It was claimed that a reduction in CO2 pneumoperitoneum-induced metabolic hypoxemia was achieved by the addition of small amounts of O2 to the CO2 in a rabbit ventilated model. We reevaluated the effects of
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