Cardiopulmonary Bypass, Thoracic Surgery
Conditions
Keywords
cardiac surgery, thoracopulmonary compliance
Brief summary
the decrease in thoracopulmonary compliance after cardiac surgery is well known . The investigators hypothesize that the major factor determining pulmonary outcome after cardiac surgery is the alteration of pulmonary compliance during cardiopulmonary bypass(CBP) and that this alteration is due to CBP itself through pulmonary blood emptying.
Detailed description
compliance is the compliance calculate when thorax is closed, the pulmonary compliance is the compliance calculated when thorax is opened After operation chest X-ray are daily done and blood samples as needed. Were recorded death, time of extubation,duration of non invasive ventilation,of Intensive Care Unit stay and of total hospital stay, troponin peak, lactates, blood gases, ionogram and count.Variations of compliance is analyzed through one factor paired Anova or Wilcoxon paired test. Decrease of compliance and respiratory complications are analyzed through binomial logistic regression.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* scheduled for standard aortic * mitral or coronary surgery
Exclusion criteria
* emergency operation * no complete preoperative echocardiography * surgery needing multiple table position changes * unstable cardiac or respiratory condition * difficult patient needing multiple care and/or special attention
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| pulmonary compliance during cardiac surgery | intraoperative | compliance is calculated by dividing tidal volume (ml) by the difference between plateau-inspiratory pressure (mmHg) and end-expiratory pressure (mmHg) before ,during and after CBP |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| pulmonary complications including death after cardiac surgery | 1 month | intersticial and/or alveolar pulmonary oedema leading to death or extra hospital stay |
| thoracopulmonary compliance during cardiac surgery | intraoperative | compliance is calculated by dividing tidal volume (ml) by the difference between peak-inspiratory pressure (mmHg) and end-expiratory pressure (mmHg) before ,during and after CBP |
Countries
France