Thromboelastography-guided blood transfusion during cytoreductive surgery combined with hyperthermic intraperitoneal chemotherapy: study protocol for a prospective randomised controlled trial

HIPEC as a risk factor for postoperative coagulopathy after cytoreductive surgery for peritoneal metastases

AIM OF THE STUDY

Postoperative coagulopathy is a poorly investigated condition after Cytoreductive Surgery (CRS) and Hyperthermic Intraperitoneal Chemotherapy (HIPEC). This study aims to evaluate the occurrence and risk factors of coagulative disorders after surgery for peritoneal metastases.

PATIENTS AND METHODS

The records were extracted from a prospectively maintained database of consecutive patients who underwent CRS between January 2018 and September 2020. The study was approved by the local Ethics Committee. For each patient, the coagulation profile (CP), which included international normalized ratio (INR), partial thromboplastin time (aPTT), and platelets (PLTS) before surgery, intensive care unit admission,1st, 3rd, 5th postoperative day (POD) and the day before discharge was collected. Risk factors for postoperative coagulopathy were identified at multivariate analysis.

RESULTS

During the study period, 125 patients were included in the study. Among these, 48 (38.4%) underwent CRS only, and 77 (61.6%) CRS followed by HIPEC. Twenty-one patients (16.8%) developed severe coagulopathy, 5 (10.4%) after CRS and 16 (20.8%) after CRS-HIPEC. At multivariate analysis, HIPEC and blood loss ≥ 500 ml represented independent risk factors for severe alteration of INR > 1.5 (p = 0.05, OR 1.2) and PLTS < 75 10⁹/L (p = 0.03, OR 1.3), respectively.

CONCLUSION

HIPEC is an independent risk factor for postoperative coagulopathy after CRS. Further studies are necessary to assess the usefulness of the point-of-care test in patients treated with CRS-HIPEC.

Current Trends in Cytoreductive Surgery (CRS) and Hyperthermic Intraperitoneal Chemotherapy (HIPEC) for Peritoneal Disease from Appendiceal and Colorectal Malignancies

Peritoneal carcinomatosis (PC) is a poor prognostic factor for all malignancies. This extent of metastatic disease progression remains difficult to treat with systemic therapies due to poor peritoneal vascularization resulting in limited drug delivery and penetration into tissues. Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) are surgical interventions that directly target peritoneal tumors and have improved outcomes for PC resulting from appendiceal and colorectal cancer (CRC). Despite these radical therapies, long-term survival remains infrequent, and recurrence is common. The reasons for these outcomes are multifactorial and signal the need for the continued development of novel therapeutics, techniques, and approaches to improve outcomes for these patients. Here, we review landmark historical studies that serve as the foundation for current recommendations, recent discoveries, clinical trials, active research, and areas of future interest in CRS/HIPEC to treat PC originating from appendiceal and colorectal malignancies.