A RETROspective Data Collection of comPRESSion Anastomosis Using the ColonRing

Study Overview
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Brief Summary
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The proposed study is a post marketing, observational, retrospective data collection intended to gather and record data on patients treated with the ColonRing device in routine clinical practice at 4-6 centers. The data will assist in future evaluating the performance of the ColonRing device in regards to the creation of a colorectal anastomosis in Low Anterior Resection procedures. Hypothesis: The performance of the ColonRing, determined by the rate of complications, will be within the acceptable range reported in the literature for alternative treatment modalities.

Official Title
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Multi Center, Observational, Retrospective Data Collection of Patients Treated With the ColonRing in Routine Clinical Practice. This Study to Continue RETROPRESS Study ID NCT01301417

Conditions
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Diverticulum, Colon, Colorectal Neoplasms, Crohn Disease, Colitis, Ulcerative, Colostomy, Ileostomy - Stoma, Rectal Prolapse, Intestinal Polyposis, Lymphoma, Endometriosis, Intestinal Volvulus

Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Patient was > 18 years old at time of procedure Patient underwent a technically successful open or laparoscopic colorectal, Low Anterior Resection procedure with the creation of an anastomosis using the ColonRing™ Patient treated in routine clinical practice Patient underwent his/her first follow-up visit within two months post-surgery Exclusion Criteria: No exclusion criteria have been defined for this data collection.

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| ColonRing<br>The ColonRing device is intended to be used for the creation of intestinal anastomoses in colorectal surgery in both open and laparoscopic surgeries. This indication is within the currently cleared indication of the ColonRing device, which has been cleared by the US FDA and carries the CE Mark for use throughout the alimentary trct for the creation of circular end-to-end, side-to-end or side-to-side anastomosis. | |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| The rate of anastomotic leakage. | Anastomotic leakage is defined as evidence of a defect in the intestinal wall integrity at the anastomotic site leading to a communication between the intra and extra luminal compartments. | 6 weeks after the procedure | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Rate of other device related complications and measures during hospitalization and post procedure. | The Following complications will be examined: Bleeding. Stricture (either clinical evidence of a stricture or the inability to pass a 12 mm sigmoidoscope through the anastomosis in a procedure that does not include a diversion). Septic complication (including wound infection, pelvic infection, peritonitis, abscess) Readmission, re-operation, death within two months of the procedure Extra colonic complications (including urinary infection, urinary retention, DVT, pneumonitis, pulmonary embolism, cardiac, injury to other organs - e.g. spleen, ureter) The following post operative measures will be reported: Hospitalization duration (two dates will be recorded: ready for discharge and discharge). The latter noting where the patient was discharged to - e.g. nursing home or home. First day to first postoperative flatus. First day to first postoperative bowel movements. First day of first postoperative toleration of liquids and solids (time to keeping them down) | 6 weeks after the procedure. | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Compression Anastomosis