CLINICAL AND FINANCIAL AUDIT OF DIAGNOSTIC PROTOCOLS FOR LESIONS OF THE CEREBELLOPONTINE ANGLE

被引:12
作者
SWAN, IRC [1 ]
GATEHOUSE, S [1 ]
机构
[1] GLASGOW ROYAL INFIRM,MRC,INST HEARING RES,SCOTTISH SECT,GLASGOW G4 0SF,SCOTLAND
关键词
D O I
10.1136/bmj.302.6778.701
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective-To assess the diagnostic efficiency and costs of protocols used for investigating patients with suspected lesions of the cerebellopontine angle. Design-Prospective evaluation of tests of auditory brain stem responses and acoustic reflex thresholds, electronystagmography, and calorics. Positive test results were confirmed or refuted by high resolution computed tomography with intravenous enhancement. Setting-Single general otolaryngology clinic in a teaching hospital. Patients-270 consecutive patients with sensorineural hearing loss requiring investigation to exclude a lesion of the cerebellopontine angle. Main outcome measures-Estimated costs of various diagnostic protocols and performance in detecting tumours of the cerebellopontine angle. Results-Protocols including tests of auditory brain stem responses and acoustic reflex thresholds as sifting tests before computed tomography were clinically acceptable and presented considerable savings over the use of computed tomography in all patients (74000 pounds or 84000 pounds v 122000 pounds). The use of electronystagmography and calorics could not be justified on clinical or financial grounds. Conclusions-Audiological tests of auditory brain stem responses and acoustic reflex thresholds followed by computed tomography constitute the most cost effective protocol for determining suspected lesions of the cerebellopontine angle. Implications-The cost effectiveness of diagnostic protocols should be evaluated throughout the health service.
引用
收藏
页码:701 / 704
页数:4
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