Abscess

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An abscess is defined as an "accumulation of purulent material in tissues, organs, or circumscribed spaces, usually associated with signs of infection."[1]

Treatment

Incision and drainage

The abscess should be treated with incision and drainage followed by loose packing.[2]

Primary closure

Primary closure has been successful when combined with curettage and antibiotics[3] or with curettage alone.[4] However, another randomized controlled trial found primary closure led to 35% failing to heal primarily and primary closure longer median number of days to closure (8.9 versus 7.8).[5]

In anorectal abscesses, primary closure healed faster, but 25% of abscesses healed by secondary healing and recurrence was higher.[6]

Antibiotics

Antibiotics should be considered if there is significant overlying cellulitis. Systematic reviews of relevant studies concluded that:[7][8]

"the current literature does not support the routine practice of prescribing antibiotics after incision and drainage of simple cutaneous abscesses, even in high-MRSA-prevalence areas"
"our conclusions cannot be extrapolated to those cases in which there is a significant degree of overlying cellulitis"

A more recent randomized controlled trial confirms these results.[9]

To prevent recurrent infections due to Staphylococcus, consider the following measures:

  • Topical mupirocin applied to the nares.[10] In this randomized controlled trial, patients used nasal mupirocin twice daily 5 days a month for 1 year.
  • Chlorhexidine baths,[11] in a randomized controlled trial, nasal recolonization with S. aureus occurred at 12 weeks in 24% of nursing home residents receiving mupirocin ointment alone (6/25) and in 15% of residents receiving mupirocin ointment plus chlorhexidine baths daily for the first three days of mupirocin treatment (4/27). Although these results did not reach statistical significance, the baths are easy to do.

References

  1. National Library of Medicine. Abscess. Retrieved on 2007-10-19.
  2. Macfie J, Harvey J (1977). "The treatment of acute superficial abscesses: a prospective clinical trial". The British journal of surgery 64 (4): 264-6. PMID 322789[e]
  3. Abraham N, Doudle M, Carson P (1997). "Open versus closed surgical treatment of abscesses: a controlled clinical trial". The Australian and New Zealand journal of surgery 67 (4): 173-6. PMID 9137156[e]
  4. Stewart MP, Laing MR, Krukowski ZH (1985). "Treatment of acute abscesses by incision, curettage and primary suture without antibiotics: a controlled clinical trial". The British journal of surgery 72 (1): 66-7. PMID 3881155[e]
  5. Simms MH, Curran F, Johnson RA, et al (1982). "Treatment of acute abscesses in the casualty department". British medical journal (Clinical research ed.) 284 (6332): 1827-9. PMID 6805714[e]
  6. Kronborg O, Olsen H (1984). "Incision and drainage v. incision, curettage and suture under antibiotic cover in anorectal abscess. A randomized study with 3-year follow-up". Acta Chirurgica Scandinavica 150 (8): 689-92. PMID 6397949[e]
  7. Hankin A, Everett WW (2007). "Are antibiotics necessary after incision and drainage of a cutaneous abscess?". Annals of emergency medicine 50 (1): 49-51. DOI:10.1016/j.annemergmed.2007.01.018. PMID 17577944. Research Blogging. PMID 17577944
  8. Korownyk C, Allan GM (2007). "Evidence-based approach to abscess management". Canadian family physician Médecin de famille canadien 53 (10): 1680–4. PMID 17934031[e]
  9. Rajendran PM, Young D, Maurer T, et al (2007). "Randomized, Double-Blind, Placebo-Controlled Trial of Cephalexin for Treatment of Uncomplicated Skin Abscesses in a Population at Risk for Community-Acquired Methicillin-Resistant Staphylococcus aureus Infection". Antimicrob. Agents Chemother. 51 (11): 4044–8. DOI:10.1128/AAC.00377-07. PMID 17846141. Research Blogging.
  10. Raz R, Miron D, Colodner R, Staler Z, Samara Z, Keness Y (1996). "A 1-year trial of nasal mupirocin in the prevention of recurrent staphylococcal nasal colonization and skin infection.". Arch Intern Med 156 (10): 1109-12. PMID 8638999.
  11. Watanakunakorn C, Axelson C, Bota B, Stahl C (1995). "Mupirocin ointment with and without chlorhexidine baths in the eradication of Staphylococcus aureus nasal carriage in nursing home residents.". Am J Infect Control 23 (5): 306-9. PMID 8585642.