Measurement of Bone Flap Surface Area and Midline Shift to Predict Overall Survival After Decompressive Craniectomy

Enrico Di Stasio, Paolo Missori, Carlotta Morselli, Maurizio Domenicucci, Sergio Paolini, Simone Peschillo, Marco Scapeccia, Emanuela Rastelli, Stefano Martini, Federico Caporlingua

Risultato della ricerca: Contributo in rivistaArticolo in rivista

6 Citazioni (Scopus)

Abstract

Background There is uncertainty about the optimal method for measuring the decompressive craniectomy (DC) surface area and how large the DC should be. Methods A radiological technique for measuring the surface area of removed bone flaps in a series of 73 DCs was developed. Preoperative and early postoperative computed tomography scans of each patient were evaluated. Midline shift (MLS) was considered the key factor for successful DC and was assigned to either normal (0–4 mm) or pathological (≥5 mm) ranges. The association between postoperative MLS and patient survival at 12 months was assessed. Results Measurements of all removed bone flaps yielded a mean surface area of 7759 mm2. The surface area of the removed bone flap did not influence survival (surviving 7643 mm2 vs. deceased 7372 mm2). The only factor associated with survival was reduced postoperative MLS (P < 0.034). Risk of death was 14.4 (3.0–70.1)-fold greater in patients with postoperative shift ≥5 mm (P < 0.001). Conclusion The ideal surface area for “large” square bone flaps should result in an MLS of <5 mm. Enlargement of the craniectomy edges should be considered for patients in whom MLS ≥5 mm persists according to early postoperative computed tomography scans.
Lingua originaleEnglish
pagine (da-a)11-14
Numero di pagine4
RivistaWorld Neurosurgery
Volume2016
DOI
Stato di pubblicazionePubblicato - 2016

Keywords

  • Bone
  • Brain
  • Computed tomography
  • Craniectomy
  • Flap
  • Neurology (clinical)
  • Shift
  • Surgery
  • Ventricular system

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