Comparison of Intraabdominal Pressure and Respiratory Parameter Changes According to Positional Apparatus in the Prone Position
试验速览
- 阶段
- 不适用
- 入组人数
- 138
- 试验地点
- 2
- 主要终点
- changes of Intraabdominal presure (IAP)
研究概览
简要总结
Increased intra-abdominal pressure(IAP) might influence on perioperative morbidity related to increased CVP, PVWP, SVR, PAP and decreased venous return and cardiac output. Prone position has been known to increase IAP. In clinical field, various apparatuses has developed to minimize IAP elevation during prone position operation.
In this study, we would compare the changes of IAP and respiratory system compliance according to positional apparatus in prone position.
详细描述
In clinical field, Wison frame, chest rolls and Jackson table have been widely used for prone position surgery. Among those apparatus, Jackson table has padded supports under the chest and pelvis, so that the abdomen can hang freely and prevent the abdominal compression. By reducing abdominal and thoracic pressure, Jackson table would reduce blood loss, and less effects on pulmonary mechanics. But few studies has known to compare IAP with other positioning apparatus such as Wilson frame or chest roll.
研究设计
- 研究类型
- Interventional
- 分配方式
- Non Randomized
- 干预模型
- Parallel
- 主要目的
- Supportive Care
- 盲法
- None
入排标准
- 年龄范围
- 20 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients who are scheduled for prone positioned spinal surgery
- •ASA Physical Status Classification System class I or II
排除标准
- •Patients who did not agree
- •BMI > 30kg/m2
- •Patients who did not insert urinary foley catheter
- •Patients who have COPD or emphysema
- •Patients who have severe spine deformities such as scoliosis
结局指标
主要结局
changes of Intraabdominal presure (IAP)
时间窗: 5 minute after position change
Compare IAP changes from supine to prone according to the positional apparatus : Wilson frame, Chestrolls and Jackson table
次要结局
- Changes of IAP and total respiratory system comliance (Crs) accoridng to PEEP change(1min after PEEP change)
- changes of dead space ventilation after position change(5 minute after prone position)
- Hemodynamic change(1min after PEEP change)
研究者
Hee-Pyoung Park
Professor
Seoul National University Hospital