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Single-stapling versus double-stapling in minimally invasive rectal anastomosis – The randomized, controlled SiSta trial

Single-stapling versus double-stapling in minimally invasive rectal anastomosis – The randomized, controlled SiSta trial - SiSta

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
DRKS
Registry ID
DRKS00034813
Enrollment
100
Registered
2025-03-11
Start date
2026-01-14
Completion date
Unknown
Last updated
2026-02-02

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

C20

Interventions

Group 1: Division of the rectum by a linear stapler (one or more magazines 30 mm, 45 mm or 60 mm) followed by a circular stapler rectal anastomosis (28 mm or 31 mm) with an additional omega suture to

Sponsors

Klinikum Nürnberg
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: - Patients scheduled for elective minimally invasive rectal / sigmoid resection with reconstruction via circular stapler rectal anastomosis - Ability of subject to understand character and individual consequences of the clinical trial - Written informed consent - Age =18 years

Exclusion criteria

Exclusion criteria: Preoperative exclusion criteria: - History of left sided colon / rectal surgery - Participation in another interventional trial with interference of intervention and outcome of this trial - American Society of Anesthesiologists (ASA) grade > 3 - Pregnant or lactating women Intraoperative exclusion criteria: - Level of anastomosis of = 4 cm from the dentate line or intersphincteric anastomosis - Anastomosis other than colorectal anastomosis (e.g. ileorectostomy) - Impossibility of circular stapler anastomosis or linear stapler division of the rectum - Conversion to open surgery

Design outcomes

Primary

MeasureTime frame
Proportion of rectal anastomotic leakages as defined by the International Study Group of Rectal Cancer within the first 90 postoperative days

Secondary

MeasureTime frame
1. Proportion of anastomotic stenosis defined as an anastomotic stricture requiring dilatation 2. Postoperative complications grade = 2 according to the Clavien-Dindo-Classification 3. Intraabdominal abscess 4. Surgical site infection 5. Reoperation 6. 30-day and 90-day mortality 7. Length of primary hospital stay in days from day of operation until day of discharge 8. Operation time 9. Intraoperative blood loss / transfusion

Countries

Germany

Contacts

Public ContactPatrick Heger

Klinikum Nürnberg

patrick.heger@klinikum-nuernberg.de+49 (0) 911 398-2979

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 7, 2026