| OUTCOMES |
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Type of outcome
|
Outcome
|
Timepoint(s) at which outcome measured
|
| Primary Outcome |
1.Safety 90 days after surgery, defined by the absence of surgical site infection (SSI), reoperation or recurrence
SSI will be defined as per CDC criteria within 90 days of inguinal hernia repair
SSI after surgery will be defined according to CDC criteria. The following CDC definition will be used to identify deep incisional or superficial SSIs:
Infection must occur within 30-days of the index operation AND Infection must involve the skin, subcutaneous, muscular or fascial layers of the incision AND
Patient must have at least one of the following:
Purulent drainage from the wound Organisms detected from a wound swab Wound opened spontaneously or by a clinician AND, at the surgical wound, the patient has at least one of: pain or tenderness; localised swelling; redness; heat; systemic fever (>38°C) Diagnosis of SSI by a clinician or radiological imaging Reoperation will be defined as any surgical complication requiring reoperation in theatre within 90 days of inguinal hernia repair.
Recurrence will be defined as in the Reinforcement of Closure of Stoma Site (ROCSS) Trial.
|
90 days post-op |
| Secondary Outcome |
Surgical site infection at 30 days after surgery and 90 days after surgery (CDC criteria)
|
30 and 90 days after surgery |
| Secondary Outcome |
Reoperation at 30 days after surgery and 90 days after surgery (as described for the primary outcome)
|
30 and 90 days after surgery |
| Secondary Outcome |
Inguinal hernia recurrence at 90 days after surgery and one year after surgery (as described for the primary outcome)
|
90 days and 1 year after surgery |
| Secondary Outcome |
Quality of life at one year after surgery (using the Hernia-Q questionnaire) (The Hernia-Q is a validated patient reported outcome to assess hernia-specific quality of life in patients undergoing hernia operation.)
|
1 year after surgery |
| Secondary Outcome |
Chronic postoperative inguinal pain 90 days and one year after surgery Chronic postoperative inguinal pain will be assessed through a FPS-R (face pain scale - revised). A score of four or more (out of ten) will be used to define pain in TIGER trial.
|
90 days and 1 year after surgery |
| Secondary Outcome |
Postoperative inguinal pain at 30 days after surgery (using the Faces Pain Scale - Revised (FPS-R) score)
|
30 days after surgery |
| Secondary Outcome |
Mortality within 30 days of surgery
|
Within 30 days after surgery |
| Secondary Outcome |
Duration of surgery (in minutes)
|
Measured intraoperatively |
| Secondary Outcome |
Senior assistance during the surgical procedure. For every patient operated on, it will be recorded if the professional performing the operation (surgeon or NSP) required assistance from a senior surgeon during the procedure. This is extremely relevant to measure as it will inform trial applicability in a real-world clinical scenario, particularly in the NSP arm but also in the surgeon arm.
|
Measured intraoperatively |
| Secondary Outcome |
Cost-effectiveness 30 days after surgery.
|
30 days after surgery |