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Postoperative Ileus Murine Model
Published on: July 12, 2024
Slow Down Fluids to Speed Up the Intestine - Exploring Postoperative Ileus in Pediatric Gastrointestinal Surgery
Alison Lehane1, Mallory Perez1, Charesa Smith1
1Northwestern Quality Improvement, Research & Education in Surgery (NQUIRES), Northwestern University Feinberg School of Medicine, Chicago, IL, USA; Division of Pediatric Surgery, Department of Surgery, Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine, USA.
Insights
Higher intraoperative intravenous (IV) fluids correlate with increased postoperative ileus in pediatric gastrointestinal (GI) surgery patients. Limiting IV fluids is crucial for enhanced recovery protocols in children undergoing GI surgery.
Area of Science:
- Pediatric Surgery
- Gastrointestinal Surgery
- Anesthesiology
Background:
- Postoperative ileus is a common complication following gastrointestinal (GI) surgery.
- In adults, increased intraoperative intravenous (IV) fluids are linked to higher ileus rates.
- This study investigates this association in pediatric patients.
Purpose of the Study:
- To examine the relationship between intraoperative IV fluid administration and the incidence of postoperative ileus in pediatric patients undergoing GI surgery.
- To identify fluid management targets within enhanced recovery protocols for pediatric GI surgery.
Main Methods:
- A prospective trial involving 18 centers and patients aged 10-18 years undergoing non-emergent GI surgery.
- Statistical analysis compared patients with and without postoperative ileus, stratified by intraoperative IV fluid receipt.
- Data included fluid volumes, rates (mL/kg/h), and patient outcomes like length of stay.
Main Results:
- Of 553 pediatric patients, 7% developed postoperative ileus.
- Patients with ileus received significantly higher mean amounts (1453 mL vs. 1180 mL) and rates (9.2 mL/kg/h vs. 7.4 mL/kg/h) of intraoperative IV crystalloid fluids.
- Ileus incidence increased with higher fluid rates: 4% (<5 mL/kg/h), 6.3% (6-10 mL/kg/h), and 13.6% (>10 mL/kg/h).
- Ileus was associated with a longer hospital stay (11.3 days vs. 4.9 days).
Conclusions:
- Higher intraoperative IV fluid administration is significantly associated with an increased risk of postoperative ileus in pediatric GI surgery.
- Reducing intraoperative fluid volume and rate is a critical target for optimizing enhanced recovery protocols in pediatric patients.
- This finding supports refined fluid management strategies to improve outcomes after pediatric GI surgery.
Introduction:
Postoperative ileus is a known complication of gastrointestinal (GI) surgery. In adult populations, ileus is associated with higher amounts of intraoperative intravenous (IV) fluids. This study examines the relationship between intraoperative IV fluids and postoperative ileus in pediatric patients undergoing GI surgery.
Methods:
The cohort, part of an 18-center prospective trial of the implementation of an enhanced recovery protocol, consists of patients (ages 10-18 years) undergoing non-emergent GI surgery. Statistical analysis compared patients with and without postoperative ileus within 30 days of surgery, stratified by receipt of intraoperative IV fluids.
Results:
Of 553 patients, 39 (7 %) had postoperative ileus. Patients with ileus received a higher mean amount (1453 ± 1219.7 mL vs. 1180 ± 838.7 mL, p = 0.02) of intraoperative IV crystalloid fluid and at a higher rate (9.2 mL/kg/h vs. 7.4 mL/kg/h, p = 0.03) compared to those who did not. Only 4 % of patients receiving less than 5 mL/kg/h had ileus, 6.3 % if receiving 6 mL/kg/h to 10 mL/kg/h, and 13.6 % if receiving >10 mL/kg/h. Patients with ileus had a longer length of stay compared to those who did not (11.3 ± 10.7 days, vs. 4.9 ± 6.2 days, p < 0.001). There were no statistically significant differences in reason for surgery, type of surgery, American Society of Anesthesiologists (ASA) score, preoperative opioid use, operative technique, or type of anastomosis.
Conclusion:
Postoperative ileus in pediatric patients undergoing GI surgery is associated with higher amounts and rates of intraoperative IV fluids. Limiting intraoperative fluids is a key target for enhanced recovery protocols in children.
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