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Postoperative Hemodynamic Index Measurement With Miniaturized Dynamic Light Scattering Predicts Colorectal
Zhouqiao Wu1, Geesien S A Boersema2, Diman Taha2
1Erasmus University Medical Center, Rotterdam, Netherlands Peking University Cancer Hospital and Institute, Beijing, China wuzhouqiao@gmail.com.
Surgical Innovation
|November 26, 2015
Summary
Postoperative measurement of anastomotic microcirculation using a miniaturized dynamic light scattering (mDLS) device can accurately detect anastomotic leakage (AL) in colorectal surgery, aiding in healing assessment.
Area of Science:
- Surgical Innovation
- Biomedical Engineering
- Gastrointestinal Surgery
Background:
- Anastomotic leakage (AL) is a significant complication in colorectal surgery.
- Accurate assessment of anastomotic perfusion is crucial for predicting healing and detecting leakage.
- Current methods for evaluating perfusion may be limited in real-time perioperative settings.
Purpose of the Study:
- To evaluate the correlation between local hemodynamic index (LHI) and anastomotic healing.
- To determine if LHI measurement can assist in the detection of AL in colorectal surgery.
- To assess the utility of a miniaturized dynamic light scattering (mDLS) device for perioperative bowel perfusion monitoring.
Main Methods:
- Partial colectomy was performed in Wistar rats.
- Colonic and anastomotic LHIs were measured intraoperatively and postoperatively using an mDLS device.
- Anastomotic bursting pressure (ABP) and AL manifestations were assessed on postoperative day 3.
- LHI measurements were also performed in rats with experimental colitis.
Main Results:
- Intraoperative LHI did not correlate with POD3 ABP.
- Postoperative anastomotic LHI on POD3 significantly correlated with ABP in both normal and colitis models.
- POD3 anastomotic LHI demonstrated high accuracy in predicting low ABP and detecting AL, with a sensitivity of 100% and specificity of 65% at a cutoff of 1236.
Conclusions:
- Postoperative evaluation of anastomotic microcirculation with mDLS is a valuable tool for detecting AL.
- LHI measurement shows promise in assisting surgeons to identify compromised anastomoses.
- This technology could improve patient outcomes by enabling early intervention for AL.
