Atelectasis. Pulmonary collapse
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: Inclusion criteria: consent to participate in the study? no emergency surgery(coronary artery bypass and heart valves using sternotomy and cardiopulmonary bypass support)? aged 18 years and older? ejection fraction more than 30 percent? having no mental retardation and olfactory impairment? negative history of previous heart or lung surgery? negative history of previous severe trauma to the head or nose? negative history of previous frequent sinus infections? Lack of preoperative pulmonary disease(pneumonia, chronic obstructive pulmonary disease, atelectasis, pleural effusion and asthma)? BMI less than 40 kg/m2. Patients with systolic blood pressure less than 90 mm Hg despite additional fluids? PH arterial less than 7.30? arterial carbon dioxide pressure greater than 50 mmHg? arterial oxygen saturation less than 80% despite oxygen? blood hemoglobin concentration of less than 7 g/dL? serum creatinine greater than3.5 mg/dL were not included in the study. Exclusion criteria: patients' unwillingness to continue cooperation? need for reoperation due to surgery complications? incidence of cognitive and neurological disorders after surgery? postoperative hemodynamic instability(systolic blood pressure below 80 mm Hg)? postoperative bleeding more than 500 ml? need for mechanical ventilation for more than 15 hours after surgery.
Exclusion criteria
Exclusion criteria:
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Atelectasis. Timepoint: Pre & post operation and second day post operatively. Method of measurement: Chest x ray. | — |
Secondary
| Measure | Time frame |
|---|---|
| Arterial blood gases. Timepoint: Before surgery; the morning and afternoon of the first day of surgery, before and after the intervention; morning and afternoon of the second day after surgery, before and after the intervention. Method of measurement: Arterial blood gas test(ABG).;Systolic and diastolic arterial blood pressure. Timepoint: Before surgery; the morning and afternoon of the first day of surgery, before and after the intervention; morning and afternoon of the second day after surgery, before and after the intervention. Method of measurement: Sphygmomanometer.;Tempereture. Timepoint: Before surgery; the morning and afternoon of the first day of surgery, before and after the intervention; morning and afternoon of the second day after surgery, before and after the intervention. Method of measurement: Oral Thermometer.;Respiratory rate. Timepoint: Before surgery; the morning and afternoon of the first day of surgery, before and after the intervention; morning and afternoon of the second day after surgery, before and after the intervention. Method of measurement: Number of respiratory rate.;Heart rate. Timepoint: Before surgery; the morning and afternoon of the first day of surgery, before and after the intervention; morning and afternoon of the second day after surgery, before and after the intervention. Method of measurement: Cardiac monitoring.;Saturation of Peripheral Oxygen. Timepoint: Before surgery; the morning and afternoon of the first day of surgery, before and after the intervention; morning and afternoon of the second day after surgery, before and after the intervention. Method of measurement: Monitor and pulse oximetry. | — |
Countries
Iran (Islamic Republic of)
Contacts
Mazandaran University of Medical Sciences