Management of pinna of haematoma study (MaPHaeS): a multicentre retrospective observational study

Abstract

Objectives

To assess current variation in the management of pinna haematoma (PH) and its effect on outcomes.

Design

Multicentre retrospective observational record-based study.

Setting

Eleven hospitals around the UK.

Participants

Eighty-three patients above the age of 16 with PH.

Outcome Measures

The primary outcome measure was recurrence rate of PH over a six-month period post treatment, assessed by treatment type (scalpel incision vs. needle aspiration). Secondary outcome measures assessed the impact of other factors on recurrence, infection and cosmetic complications of PH over a period of six months.

Results

After adjusting for confounding factors, involvement of the whole ear, and management within an operating theatre were associated with a lower rate of recurrence of pinna haematoma. The drainage technique, suspected aetiology, choice of post-drainage management, grade and specialty of practitioner performing drainage, the use of intra-auricular antibiotic injection and hospital admission did not affect the rate of haematoma recurrence, infection or cosmetic complications.

Conclusions

Where possible PH should be drained in an operating theatre. Multi-centre randomized-controlled trials are required to further investigate the impact of drainage technique and post drainage management on outcome.

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