Intra Abdominal Pressure, Pneumoperitoneum, Surgery
Conditions
Brief summary
During pneumoperitoneum insufflation the insufflated gas increase intra-abdominal pressure. The generated pressure can lead to a different increase in volume depending on the abdominal cavity and patients' characteristics. The primary objective is to determine the relationship between intraabdominal pressure (IAP) and intraabdominal volume (IAV) during pneumoperitoneum insufflation. The secondary objective is to determine the rate of abdominal-thoracic transmission (ATT) assessing the correlation between IAP and respiratory driving pressure (ΔPRS).
Interventions
OTHERPeritoneum insufflation
Before surgery pneumoperitoneum is established by insufflating gas into the abdomen. Intraabdominal pressure (IAP) is set to 15 mmHg for initial abdominal stretching and then decreased in a stepwise manner down until 8 mmHg.
Sponsors
Hospital Universitario La Fe
Study design
Observational model
COHORT
Time perspective
RETROSPECTIVE
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
Inclusion criteria
* Enrolled one of the three studies (IPPCollapse I, II or III). * underwent an initial insufflation procedure with a stepwise change in intraabdominal pressure to record Intraabdominal volume * data from insufflation at 5 cmH2O of PEEP
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Intraabdominal volume | During pneumoperitoneum insufflation before surgery |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Driving pressure | During pneumoperitoneum insufflation before surgery | This is the pressure that exert a stress on the respiratory system during mechanical ventilation. It is calculated by subtracting the positive endexpiratory pressure from plateau pressure |
| Plateau pressure | During pneumoperitoneum insufflation before surgery | This is the pressure in the airway during the mechanical venitilation inspiratory pause time |
Countries
Spain
Outcome results
None listed