J 2023

Influence of opioid analgesia type on circulating tumor cells in open colorectal cancer surgery (POACC-1): study protocol for a prospective randomized multicenter controlled trial

BERTA, Emil, Josef SROVNAL, Petr DYTRYCH, Jan BRUTHANS, Jitka ULRICHOVA et. al.

Basic information

Original name

Influence of opioid analgesia type on circulating tumor cells in open colorectal cancer surgery (POACC-1): study protocol for a prospective randomized multicenter controlled trial

Authors

BERTA, Emil (203 Czech Republic), Josef SROVNAL (203 Czech Republic), Petr DYTRYCH (203 Czech Republic), Jan BRUTHANS (203 Czech Republic), Jitka ULRICHOVA (203 Czech Republic), Petr PRASIL (203 Czech Republic), Lubomír VEČEŘA (203 Czech Republic, belonging to the institution), Tomáš GABRHELÍK (203 Czech Republic), Benjamin TOLMACI (203 Czech Republic), Josef DUSA (203 Czech Republic), Jan MACA (203 Czech Republic), Michelle MAZANCOVA (203 Czech Republic), Filip HAIDUK (203 Czech Republic), Martin KUTEJ (203 Czech Republic), Peter IHNAT (203 Czech Republic), Pavel MICHALEK (203 Czech Republic) and Marian HAJDUCH (203 Czech Republic, guarantor)

Edition

BMC Anesthesiology, London, BMC, 2023, 1471-2253

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30223 Anaesthesiology

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.200 in 2022

RIV identification code

RIV/00216224:14110/23:00133351

Organization unit

Faculty of Medicine

UT WoS

000940159000002

Keywords in English

Epidural; Morphine; Piritramide; Perioperative analgesia; Colorectal cancer; Cancer recurrence; Circulating tumor cells; Colorectal surgery

Tags

Tags

International impact, Reviewed
Změněno: 31/1/2024 12:59, Mgr. Tereza Miškechová

Abstract

V originále

BackgroundOpioids and epidural analgesia are a mainstay of perioperative analgesia but their influence on cancer recurrence remains unclear. Based on retrospective data, we found that cancer recurrence following colorectal cancer surgery correlates with the number of circulating tumor cells (CTCs) in the early postoperative period. Also, morphine- but not piritramide-based postoperative analgesia increases the presence of CTCs and shortens cancer-specific survival. The influence of epidural analgesia on CTCs has not been studied yet.MethodsWe intend to enroll 120 patients in four centers in this prospective randomized controlled trial. The study protocol has been approved by Ethics Committees in all participating centers. Patients undergoing radical open colorectal cancer surgery are randomized into epidural, morphine, and piritramide groups for perioperative analgesia. The primary outcome is the difference in the number of CTCs in the peripheral blood before surgery, on the second postoperative day, and 2-4 weeks after surgery. The number of CTCs is measured using molecular biology methods. Perioperative care is standardized, and relevant data is recorded. A secondary outcome, if feasible, would be the expression and activity of various receptor subtypes in cancer tissue. We intend to perform a 5-year follow-up with regard to metastasis development.DiscussionThe mode of perioperative analgesia favorably affecting cancer recurrence would decrease morbidity/mortality. To identify such techniques, trials with long-term follow-up periods seem suboptimal. Given complex oncological therapeutic strategies, such trials likely disable the separation of perioperative analgesia effects from other factors. We believe that early postoperative CTCs presence/dynamics may serve as a sensitive marker of various perioperative interventions ' influences on cancer recurrence. Importantly, it is unbiased to the influence of long-term factors and minimally invasive. Analysis of opioid/cannabinoid receptor subtypes in cancer tissue would improve understanding of underlying mechanisms and promote personalization of treatment. We are not aware of any similar ongoing studies.