선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- The location of the DLT was examined again with FOB after the patient was placed in lateral decubitus position. All patients underwent surgery using the same anesthetic equipment (Avance, GE Healthcare, Wauwatosa, WI, USA), using PCV-VG as ventilation mode. After induction, tidal volumes were 8-10 mL/kg during two-lung ventilation.
- 2 mg before entering the operating room as premedication. In the operating room, the electrocardiogram, pulse oximeter, non-invasive blood pressure, and bispectral index were monitored. Anesthesia was induced with 4 μg/mL of propofol and 4 ng/mL of remifentanil, using target controlled infusion (TCI).
- Ventilation was subsequently changed to TV 6 mL/kg with PEEP (5 cmH2O; group TV6+PEEP) or without (group TV6), in random sequence. Peak airway pressure (Ppeak), mean airway pressure (Pmean), exhaled tidal volume (TVE), peripheral oxygen saturation (SpO2), end-tidal CO2 (ETCO2), and ABGA were measured and examined just before OLV and 30 min after each mode of OLV was applied. Ventilation was changed once more to add or eliminate PEEP (5 cmH2O), while maintaining TV 6 mL/kg.
- The primary goal of this study was to investigate whether a decrease in tidal volume of 6 mL/kg with or without 5 cmH2O PEEP would be enough to prevent lung barotrauma by reducing inspiratory airway pressure, while maintaining appropriate oxygenation during OLV using PCV-VG, which has the merits of PCV and the tidal volume-designating characteristic of VCV.
- Respiratory rates during anesthesia were set equally for all patients at 12 times per min. When SpO2 levels were below 90%, or when arterial partial pressure of oxygen (PaO2) was below 80 mmHg in ABGA, subjects were discontinued from this study and hypoxia was corrected by tidal volume elevation, relocation of DLT, or two-lung ventilation, if needed.
대상 데이터
- 05 statistical significance, using the average and standard deviation of established values [5,9], according to all three ventilation methods. Assuming a 10% drop-out rate, 27 subjects were included in the study. Each mode of ventilation was statistically assessed using SPSS for Windows, version 17.
- Of the 27 patients, three dropped out and the study was conducted statistically on the remaining 24 subjects. In these three patients, arterial oxygen partial pressure after 30 min of respiration with tidal volume of 6 mL/kg on ABGA was 60.
- The study proceeded with approval from the institutional review board of our hospital. The study enrolled 27 subjects who were classified as American Society of Anesthesiologists physical status 1 or 2 and scheduled for pulmonary surgery under OLV (Table 1). All subjects provided written informed consent before surgery.
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