Clinical trial · Observational
Surgical Outcomes in Splenic Flexure Cancers: A Multicenter Comparison of Segmental vs. Extended Hemicolectomy (SPARROW Study)
Surgical Outcomes in Splenic Flexure Cancers: A Prospective, Multicentric Observational Cohort Study Comparing Segmental Hemicolectomy and Extended Hemicolectomy - The SPARROW Study
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
SPARROW Study: Surgical Outcomes in Splenic Flexure Cancer Colonic cancers located at the splenic flexure where the transverse colon turns into the descending colon are uncommon and represent less than 10% of all colorectal cancers. Because of their unique location between the blood supply of the right and left colon, there is no clear agreement on which surgical method provides the best results. Two main procedures are used: Segmental hemicolectomy, which removes only the part of the colon containing the tumor, and Extended hemicolectomy, which removes a larger section of the colon and more lymph nodes. The SPARROW Study is a prospective, multicenter observational study designed to compare these two surgical approaches in patients with splenic flexure cancer. The study will include about 140 patients (70 in each group) from multiple tertiary colorectal centers in Turkey and Europe. Researchers will collect information about each patient's surgery, recovery, and follow-up outcomes. The main outcomes include postoperative ileus, leakage at the surgical connection (anastomosis), wound infection, and total postoperative complications. Other outcomes include number of lymph nodes removed, complete tumor resection (R0), hospital stay, recovery time, reoperation, and 3-year overall and disease-free survival. By analyzing both short- and long-term results, the SPARROW Study aims to provide high-quality evidence to guide surgeons in choosing the best and safest operation for patients with splenic flexure cancers. All participants will provide written informed consent before joining the study. The study has received ethical approval from the Koç University Ethics Committee and will be conducted in accordance with the Declaration of Helsinki.
Conditions
Conditions (6)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Colon Cancer | Malignant Colon Neoplasm | CURATED_EXACT | 0.92 |
| Extended Hemicolectomy | — | UNRESOLVED | — |
| Left Hemicolectomy | — | UNRESOLVED | — |
| Right Hemicolectomy | — | UNRESOLVED | — |
| Segmental Colectomy | — | UNRESOLVED | — |
| Splenic Flexure Mobilization | — | UNRESOLVED | — |
Interventions
Interventions (1)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Colectomy | Procedure | — | UNRESOLVED |
Design
Arms and outcomes
Arms (0)
[]Primary outcomes (1)
- measure
- Incidence of Postoperative Ileus After Surgery for Splenic Flexure Cancer
- timeFrame
- Within 30 days after surgery
- description
- The presence of postoperative ileus will be evaluated as the main indicator of early perioperative recovery. Ileus is defined as intolerance to oral intake and absence of bowel function beyond the expected postoperative period, requiring nasogastric decompression or delayed diet advancement. Data will be collected from medical records and postoperative progress notes. Additional related variables-such as the duration of ileus, need for nasogastric tube reinsertion, and time to first flatus-will also be recorded.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
- Maximum age
- 80 Years
Show eligibility criteria text
Inclusion Criteria: * Adult patients aged 18 years or older * Histologically confirmed adenocarcinoma of the splenic flexure * Elective surgical resection performed with curative intent (segmental colectomy or extended hemicolectomy) * Availability of complete perioperative and follow-up data * Written informed consent provided prior to participation * Surgery performed by colorectal or general surgeons meeting institutional eligibility criteria (≥20 colorectal cancer cases/year, ≥2 years of colorectal training) Exclusion Criteria: * Emergency surgery for obstruction, perforation, or bleeding * Non-adenocarcinoma histology (e.g., lymphoma, neuroendocrine tumor, gastrointestinal stromal tumor) * Patients undergoing palliative resections, local excisions, or bypass procedures without curative intent * Presence of synchronous colorectal malignancy or distant metastasis requiring simultaneous resection * Previous colorectal resection involving the splenic flexure * Patients with incomplete clinical or pathological data or those lost to follow-up before 30 days postoperatively
References
Publications (4)
- RESULTKuzu MA, Benlice C, Parvaiz A, Gorgun E, Bertelsen CA, Wexner S, Dozois EJ, Hohenberger W, Miskovic D, Sugihara K, Spinelli A, Wiggers T, Lee WY, Moslein G, Tsarkov P, Basany EE, Patron Uriburu JC, Perez RO, Lynch C, Liu Z, Hahnloser D, Nilsson PJ, Chowdri NA, Brown G, Rouanet P, Madoff RD, West NP, Sahin T, Elhan AH, Bordeianou LG; Colon Cancer Delphi Consensus Study Group. Standardizing the Definition of Each Colon Cancer Segment: Delphi Consensus on Clinical Decision-Making for Oncologic Outcomes. Dis Colon Rectum. 2025 Jul 1;68(7):835-844. doi: 10.1097/DCR.0000000000003739. Epub 2025 Apr 11. PMID 40214091
- RESULTGebauer S, Schootman M, Xian H, Xaverius P. Neighborhood built and social environment and meeting physical activity recommendations among mid to older adults with joint pain. Prev Med Rep. 2020 Feb 11;18:101063. doi: 10.1016/j.pmedr.2020.101063. eCollection 2020 Jun. PMID 32140385
- RESULTWang C, Wang C, Qiu J, Gao J, Liu H, Zhang Y, Han L. Ultrasensitive, high-throughput, and rapid simultaneous detection of SARS-CoV-2 antigens and IgG/IgM antibodies within 10 min through an immunoassay biochip. Mikrochim Acta. 2021 Jul 20;188(8):262. doi: 10.1007/s00604-021-04896-w. PMID 34282508
- RESULTHohenberger W, Weber K, Matzel K, Papadopoulos T, Merkel S. Standardized surgery for colonic cancer: complete mesocolic excision and central ligation--technical notes and outcome. Colorectal Dis. 2009 May;11(4):354-64; discussion 364-5. doi: 10.1111/j.1463-1318.2008.01735.x. Epub 2009 Nov 5. PMID 19016817