Watchful waiting for inguinal hernia: most patients stop coming back

Design

Single-centre retrospective cohort with survey of non-attenders

Population

400 patients with asymptomatic or minimally symptomatic inguinal hernia, 2013–2026

Primary outcome

Adherence to watchful-waiting surveillance

Effect

60.0% discontinued; 92.9% under age 30 vs 56.4% over 50 (p = 0.015)

A single centre followed 400 patients with asymptomatic or minimally symptomatic inguinal hernias enrolled in a watchful-waiting protocol between 2013 and 2026, with reviews every six months in the first year and yearly thereafter.

By the end of the study, 240 (60.0%) had dropped out of surveillance, with attrition rising steadily over time. Younger age independently predicted dropout: 92.9% under 30, 63.6% at 30 to 50 and 56.4% over 50. Of the 77 who answered a follow-up survey, the commonest reasons were having no symptoms and not knowing the review schedule. Eleven had elective repair elsewhere, and no emergency operations were found among those still followed or those reached.

Watchful waiting rests on the idea that patients will come back if things change. This study suggests that, in practice, the surveillance part often does not happen, so the safety net is really patient education.

• Watchful waiting remained safe in this cohort, with no emergency repairs among patients who could be traced.
• Expect most patients, and nearly all under 30, to drop out of scheduled hernia surveillance within a few years.
• Teach every patient the warning signs of incarceration and how to seek urgent care, in writing.
• Give younger, fit patients a frank discussion of elective repair, since they are least likely to stay under review.

Why it matters

A strategy that depends on follow-up is only as safe as the follow-up actually delivered.

Don't overread it

Only a third of those lost to follow-up were contacted, so emergencies outside the centre could have been missed.

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