A prospective nationwide survey of postoperative chronic pain following inguinal hernia repair in Japan

A prospective nationwide survey of postoperative chronic pain following inguinal hernia repair in Japan - Japanese nationwide survey of postoperative chronic pain following inguinal hernia repair

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000033936

Enrollment

1600

Registered

2018-08-29

Start date

2018-08-29

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

inguinal hernia

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. 20 years or more 2. Elective surgery for inguinal hernia 3. Patients who can have outpatient visit at 3 months after surgery 4. Patients who can make their own decision to participate this study

Exclusion criteria

Exclusion criteria: 1. Emergent surgery 2. Surgery for relapse or chronic pain 3. Femoral hernia case 4. Patients who cannot express their pain

Design outcomes

Primary

Measure	Time frame
Frequency of and risk factor for postoperative moderate or severe chronic pain (NRS 4 or more) at 3 months after inguinal hernia repair	—

Secondary

Measure	Time frame
1. Change over time of degree of chronic pain 2. Treatment details of postoperative chronic pain 3. Presence of a foreign body sensation, paresthesia, and sexual pain 4. Frequency of hernia recurrence, complication, and re-admission	—

Countries

Japan

Contacts

Public ContactMasato Narita

National Hospital Organization Kyoto Medical Center Department of Surgery

hernia_study@kyotolan.hosp.go.jp+81756419161

Outcome results