In:
The Journal of ExtraCorporeal Technology, EDP Sciences, Vol. 16, No. 4 ( 1984-12), p. 125-129
Abstract:
A new oxygenator, developed by Shiley Laboratories, uses microporous polypropylene membrane material in a parallel plate design. The device has an integral heat exchanger and built-in temperature ports. The M-2000 oxygenator was used for routine cardiopulmonary bypass ( CPB) during open heart surgery on sixteen consenting adult patients. Mean age of the group was 56 years and the mean body surface area was 1.77m 2 . One patient had an atrial septal defect repaired, nine had coronary bypass, five had valve replacement and one, a valve replacement with coronary bypass. The average CPB time was 105 minutes. The circuit was primed with 2000 ml of balanced electrolyte solution and 500 ml of 6% hydroxyethyl starch in 0.9% saline to which 1500 units of heparin had been added. Average normothermic blood gas values were; PaO 2 =242 mm Hg, P a CO 2 =32.5 mmHg. During hypothermia the temperature corrected mean values were; PaO 2 =155 mm Hg and P a CO 2 =31 mm Hg. Hematological changes observed were hematocrit and hemoglobin concentrations decreased 33% due to dilution. Platelet counts decreased 46%. Plasma hemoglobin values increase a by 19.6 mg/dl. The M-2000 presented no problems to the investigators during this study. It exchanged gases in a satisfactory manner and is gentle in its blood handling properties.
Type of Medium:
Online Resource
ISSN:
0022-1058
,
2969-8960
DOI:
10.1051/ject/1984164125
Language:
English
Publisher:
EDP Sciences
Publication Date:
1984
detail.hit.zdb_id:
2465229-5
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