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Ventilation with in...
Ventilation with increased apparatus dead space vs positive end-expiratory pressure : Effects on gas exchange and circulation during anesthesia in a randomized clinical study
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- Enekvist, Bruno (författare)
- Lund University,Lunds universitet,Anestesiologi och intensivvård,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Anesthesiology and Intensive Care,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine,Skåne University Hospital
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- Bodelsson, Mikael (författare)
- Lund University,Lunds universitet,Anestesiologi och intensivvård,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Kritiska infektioner,Forskargrupper vid Lunds universitet,Anesthesiology and Intensive Care,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine,Critical infections,Lund University Research Groups,Skåne University Hospital
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- Chew, Michelle (författare)
- Lund University,Lunds universitet,LUBIN Lab- Lunds laboratorium för neurokirurgisk hjärnskadeforskning,Forskargrupper vid Lunds universitet,LUBIN Lab- Lund Brain Injury laboratory for Neurosurgical research,Lund University Research Groups
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visa fler...
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- Johansson, Anders (författare)
- Lund University,Lunds universitet,Anestesiologi och intensivvård,Sektion II,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Anesthesiology and Intensive Care,Section II,Department of Clinical Sciences, Lund,Faculty of Medicine,Skåne University Hospital
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visa färre...
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(creator_code:org_t)
- 2014
- 2014
- Engelska 7 s.
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Ingår i: AANA Journal. - 0094-6354. ; 82:2, s. 114-120
- Relaterad länk:
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https://lup.lub.lu.s...
Abstract
Ämnesord
Stäng
- Atelectasis formation can be reduced by positive endexpiratory pressure (PEEP), but resulting increases in intrathoracic pressure could affect circulation. We have earlier demonstrated that increased tidal volumes with larger apparatus dead space improves oxygenation and sevoflurane uptake. In the present study, we hypothesize that isocapnic ventilation with increased tidal volumes increases oxygen and sevoflurane uptake similar to ventilation with PEEP, but with less impact on cardiac output. Thirty patients, with ASA physical status 1 or 2, scheduled for elective open colon surgery were randomly assigned to be ventilated with either PEEP at 10 cm H2O (PEEP, 15 patients) or increased tidal volumes achieved with larger apparatus dead space but with zero end-expiratory pressure (DS group, 15 patients). Oxygen tension and arterial sevoflurane concentration were significantly higher in the DS group (P < .05). Cardiac output decreased significantly less in the DS group compared with the PEEP group (5% and 33%, respectively; P < .05). Consequently, isocapnic ventilation with increased tidal volumes using apparatus dead space increased oxygen and sevoflurane tensions in arterial blood and preserved cardiac output better than did PEEP.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Anestesi och intensivvård (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Anesthesiology and Intensive Care (hsv//eng)
Nyckelord
- Cardiac output
- Pulmonary gas exchange
- Sevoflurane
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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