These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Respiratory function after cardiopulmonary bypass: a comparison of bubble and membrane oxygenators.
    Author: Reeve WG, Ingram SM, Smith DC.
    Journal: J Cardiothorac Vasc Anesth; 1994 Oct; 8(5):502-8. PubMed ID: 7803737.
    Abstract:
    A consecutive sample of 500 adults undergoing cardiac surgery was randomly allocated to extracorporeal circulation with either a Bard bubble oxygenator H1700 or a Bard membrane oxygenator HF5700 (Bard Ltd, Crawley, UK). Alveolar-arterial oxygen tension gradient (AaDO2) was calculated prebypass, then 20, 90, 180, and 420 minutes postbypass. Preoperative, initial postoperative, and first-day postoperative chest x-rays were assigned an extravascular lung water (EVLW) score and an atelectasis score. There was a comparable increase in AaDO2 after bypass in each group. The increase in EVLW score was significantly greater in the bubble group (mean 2.91, 95% CI 2.28-3.54) than the membrane group (mean 2.06, 95% CI 1.43-2.69) for the initial postoperative x-rays (P < 0.01) and also for the x-rays on the first postoperative day (P < 0.01). The increase in atelectasis score was significantly greater in the bubble group (mean 1.06, 95% CI 0.94-1.18) than the membrane group (mean 0.86, 95% CI 0.74-0.98) for the initial postoperative x-rays (P < 0.01) but not for the x-rays on the first postoperative day. There was no difference in duration of ventilation, intensive care, hospital stay, or hospital mortality between bubble and membrane groups. Although there was a statistically significant difference in x-ray scores between oxygenator groups, neither intrapulmonary shunting nor clinical outcome was influenced by the type of oxygenator used during bypass.
    [Abstract] [Full Text] [Related] [New Search]