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2015 ; 44
(ä): 46
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The usefulness of routine histopathology of bilateral nasal polyps - a systematic
review, meta-analysis, and cost evaluation
#MMPMID26537414
Wong JS
; Hoffbauer S
; Yeh DH
; Rotenberg B
; Gupta M
; Sommer DD
J Otolaryngol Head Neck Surg
2015[Nov]; 44
(ä): 46
PMID26537414
show ga
BACKGROUND: Controversy regarding the usefulness of routine histopathological
examination of bilateral nasal polyps removed during endoscopic sinus surgery to
identify occult diagnoses still exists. There is a paucity of high-level evidence
in the literature. METHODS: A systematic review and meta-analysis was conducted.
Two independent reviewers were used. Pooled proportions and numbers needed to
screen were calculated. A cost per life year model was generated based on varying
survival benefits and compared to other Canadian screening programs to provide
financial context. RESULTS: Six studies (n?=?3772 patients) were included. Of the
3772 patients, 3751 had a pre-operative clinical and post-operative pathological
diagnosis of inflammatory nasal polyps. Agreement proportion was 99.44 %. There
were 18 unexpected benign and three unexpected malignant diagnoses identified.
This translated to a proportion of 0.48 and 0.08 % respectively. Number needed to
screen was 210 and 1258 respectively. Pooled proportion for expected findings
using a random effect model was 0.99 (95 % CI?=?0.99-1). Pooled proportion for
unexpected benign findings using a random effect model was 0.00522 (95 %
CI?=?0.00133-0.01). Pooled proportion for unexpected malignant findings using a
random effect model was 0.00107 (95 % CI?=?0.000147-0.00283). The cost to pick up
one unexpected benign diagnosis was $14557.2. The cost to pick up 1 unexpected
malignant diagnosis was $87204.56. Cost per quality life year calculated ranged
from 3211.83 to $64677.58 based on varying assumptions on the survival benefits
of identifying an unexpected malignancy. CONCLUSIONS: Routine pathological
examination in screening for neoplasia may be low yield, however, no compelling
evidence was found to cease such practice. Surgeons should exercise individual
judgment in requesting routine examination.