Postoperative chronic pain after inguinal hernia repair surgery.
Conditions
Interventions
This study has no intervention. It is an observational study assessing the pre-operative nociceptive profile to study whether this is a predictive factor for the development of post-operative chronic
Sponsors
Leiden University Medical Center
Eligibility
Inclusion criteria
Inclusion criteria: Inclusion criteria include: 1) American Society of Anesthesiologists score 1, 2 or 3; 2) age 18 to 75 year; 3) planned for elective inguinal hernia repair surgery (either open or laparoscopy).
Exclusion criteria
Exclusion criteria: Exclusion criteria include: (1) Pain scores > 3 (on a 11-point numerical rating scale, NRS) reported for most of the day during the past month; (2) Regular use of analgesics for any purpose, including SNRIs, gabapentinoids, COX inhibitors or NSAIDs during the previous month; (3) The presence of any chronic pain disorder; (4) Inability to perform psychophysical testing (eg. in case of cognitive or psychiatric disorders); (5) Inability to give informed consent; (6) Inability to communicate with the investigators.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The primary outcome includes the development of chronic post-operative pain. | — |
Secondary
| Measure | Time frame |
|---|---|
| Secondary outcomes include: 1) Post-operative pain and analgesic consumption in the first 24 hours after surgery; 2) The effectiveness of the endogenous analgesic system (as measure for the nociceptive profile) in patients planned for elective inguinal hernia surgery. | — |
Contacts
Public ContactM. Niesters
Leiden University Medical Center
Outcome results
None listed