Combined simultaneous transcranial and transsphenoidal resection of large-to-giant pituitary adenomas.

Abstract:

BACKGROUND:While large-to-giant pituitary adenomas (PAs) may be safely removed by experienced surgeons through a single route, the procedure is technically challenging. We present the outcome of a simultaneous combined transcranial and transsphenoidal approach and discuss its applications. METHODS:A retrospective review was conducted on 12 consecutive patients. Surgical complications, visual and endocrinological functions, and tumour control were reviewed. RESULTS:There were four men and eight women, with a mean age of 47.6 years. All but one patient had non-functioning PAs. The mean tumour height was 4.1 cm (range: 2.3-5.5). The predominant presenting symptoms were visual field loss in eight patients, headache in three patients and mental confusion in one patient. There was no operative mortality. Post-operative cerebrospinal fluid leakage occurred in one patient. Five of the eight patients who presented with visual field loss achieved full recovery, and three had partial improvement. Two patients developed permanent diabetes insipidus after surgery. Panhypopituitarism occurred in one patient. Gross total removal (GTR) was achieved in five, and subtotal removal (STR) in seven patients. Seven patients received post-operative external irradiation. All patients who had GTR remained tumour-free and all those with STR had stable diseases after a mean follow-up period of 53.1 months (range: 14.1-92.1). CONCLUSION:The simultaneous 'above and below' approach is a safe and effective surgical strategy for large-to-giant PAs, particularly when expertise in endoscopic transsphenoidal surgery is unavailable. Its use, however, should be limited to a carefully selected group of patients, and tailored to individual user's expertise and experience.

journal_name

Acta Neurochir (Wien)

journal_title

Acta neurochirurgica

authors

Leung GK,Law HY,Hung KN,Fan YW,Lui WM

doi

10.1007/s00701-011-1029-y

subject

Has Abstract

pub_date

2011-07-01 00:00:00

pages

1401-8; discussion 1408

issue

7

eissn

0001-6268

issn

0942-0940

journal_volume

153

pub_type

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