Normative Data for the Maryland CNC Test

2014 ◽  
Vol 25 (08) ◽  
pp. 775-781 ◽  
Author(s):  
Lisa Lucks Mendel ◽  
William D. Mustain ◽  
Jessica Magro
Keyword(s):  
Hearing Loss ◽  
Word Recognition ◽  
Pure Tone ◽  
Normative Data ◽  
Medical Center ◽  
Recognition Score ◽  
Veterans Administration ◽  
Administration Medical ◽  
Wide Range ◽  
Intensity Functions

Background: The Maryland consonant-vowel nucleus-consonant (CNC) Test is routinely used in Veterans Administration medical centers, yet there is a paucity of published normative data for this test. Purpose: The purpose of this study was to provide information on the means and distribution of word-recognition scores on the Maryland CNC Test as a function of degree of hearing loss for a veteran population. Research Design: A retrospective, descriptive design was conducted. Study Sample: The sample consisted of records from veterans who had Compensation and Pension (C&P) examinations at a Veterans Administration medical center (N = 1,760 ears). Data Collection and Analysis: Audiometric records of veterans who had C&P examinations during a 10 yr period were reviewed, and the pure-tone averages (PTA4) at four frequencies (1000, 2000, 3000, and 4000 Hz) were documented. The maximum word-recognition score (PBmax) was determined from the performance-intensity functions obtained using the Maryland CNC Test. Correlations were made between PBmax and PTA4. Results: A wide range of word-recognition scores were obtained at all levels of PTA4 for this population. In addition, a strong negative correlation between the PBmax and the PTA4 was observed, indicating that as PTA4 increased, PBmax decreased. Word-recognition scores decreased significantly as hearing loss increased beyond a mild hearing loss. Although threshold was influenced by age, no statistically significant relationship was found between word-recognition score and the age of the participants. Conclusions: Results from this study provide normative data in table and figure format to assist audiologists in interpreting patient results on the Maryland CNC test for a veteran population. These results provide a quantitative method for audiologists to use to interpret word-recognition scores based on pure-tone hearing loss.

scholarly journals A Comparison of Presentation Levels to Maximize Word Recognition Scores

2009 ◽  
Vol 20 (06) ◽  
pp. 381-390 ◽  
Author(s):  
Lesli A. Guthrie ◽  
Carol L. Mackersie
Keyword(s):  
Hearing Loss ◽  
Word Recognition ◽  
Maximum Level ◽  
Computer Assisted ◽  
Phoneme Recognition ◽  
Presentation Level ◽  
Wide Range ◽  
Severe Group ◽  
The Mean ◽  
Intensity Functions

Background: While testing suprathreshold word recognition at multiple levels is considered best practice, studies on practice patterns do not suggest that this is common practice. Audiologists often test at a presentation level intended to maximize recognition scores, but methods for selecting this level are not well established for a wide range of hearing losses. Purpose: To determine the presentation level methods that resulted in maximum suprathreshold phoneme-recognition scores while avoiding loudness discomfort. Research Design: Performance-intensity functions were obtained for 40 participants with sensorineural hearing loss using the Computer-Assisted Speech Perception Assessment. Participants had either gradually sloping (mild, moderate, moderately severe/severe) or steeply sloping losses. Performance-intensity functions were obtained at presentation levels ranging from 10 dB above the SRT to 5 dB below the UCL (uncomfortable level). In addition, categorical loudness ratings were obtained across a range of intensities using speech stimuli. Scores obtained at UCL – 5 dB (maximum level below loudness discomfort) were compared to four alternative presentation-level methods. The alternative presentation-level methods included sensation level (SL; 2 kHz reference, SRT reference), a fixed-level (95 dB SPL) method, and the most comfortable loudness level (MCL).For the SL methods, scores used in the analysis were selected separately for the SRT and 2 kHz references based on several criteria. The general goal was to choose levels that represented asymptotic performance while avoiding loudness discomfort. The selection of SLs varied across the range of hearing losses. Results: Scores obtained using the different presentation-level methods were compared to scores obtained using UCL – 5 dB. For the mild hearing loss group, the mean phoneme scores were similar for all presentation levels. For the moderately severe/severe group, the highest mean score was obtained using UCL − 5 dB. For the moderate and steeply sloping groups, the mean scores obtained using 2 kHz SL were equivalent to UCL − 5 dB, whereas scores obtained using the SRT SL were significantly lower than those obtained using UCL − 5 dB. The mean scores corresponding to MCL and 95 dB SPL were significantly lower than scores for UCL − 5 dB for the moderate and the moderately severe/severe group. Conclusions: For participants with mild to moderate gradually sloping losses and for those with steeply sloping losses, the UCL – 5 dB and the 2 kHz SL methods resulted in the highest scores without exceeding listeners' UCLs. For participants with moderately severe/severe losses, the UCL − 5 dB method resulted in the highest phoneme recognition scores.

Totally implantable active middle-ear implants: a large, single-surgeon cohort

2021 ◽  
pp. 1-6
Author(s):  
E McCarty Walsh ◽  
D R Morrison ◽  
W J McFeely
Keyword(s):  
Hearing Loss ◽  
Word Recognition ◽  
Middle Ear ◽  
Pure Tone ◽  
Case Series ◽  
Recognition Score ◽  
Hearing Level ◽  
Pure Tone Average ◽  
Surgeon Experience ◽  
Middle Ear Implants

Abstract Objectives This study aimed to evaluate hearing outcomes and device safety in a large, single-surgeon experience with the totally implantable active middle-ear implants. Methods This was a retrospective case series review of 116 patients with moderate-to-severe sensorineural hearing loss undergoing implantation of active middle-ear implants. Results Mean baseline unaided pure tone average improved from 57.6 dB before surgery to 34.1 dB post-operatively, signifying a mean gain in pure tone average of 23.5 dB (p = 0.0002). Phonetically balanced maximum word recognition score improved slightly from 70.5 per cent to 75.8 per cent (p = 0.416), and word recognition score at a hearing level of 50 dB values increased substantially from 14.4 per cent to 70.4 per cent (p < 0.0001). Both revision and explant rates were low and dropped with increasing surgeon experience over time. Conclusion This study showed excellent post-operative hearing results with active middle-ear implants with regard to pure tone average and word recognition score at a hearing level of 50 db. Complication rates in this case series were significantly lower with increasing experience of the surgeon. Active middle-ear implants should be considered in appropriate patients with moderate-to-severe sensorineural hearing loss who have struggled with conventional amplification and are good surgical candidates.

The Polytrauma Rehabilitation System of Care Programs at the Richmond Veterans Administration Medical Center

2009 ◽  
Vol 21 (3-4) ◽  
pp. 197-213 ◽  
Author(s):  
David X. Cifu ◽  
Shane McNamee ◽  
David Gater ◽  
William C. Walker ◽  
Jeffery Ericksen ◽  
...  
Keyword(s):  
Medical Center ◽  
System Of Care ◽  
Veterans Administration ◽  
Administration Medical ◽  
Rehabilitation System

Readmissions to a Veterans Administration Medical Center

1985 ◽  
Vol 7 (2) ◽  
pp. 20-23
Author(s):  
Martin N. MacDowell ◽  
Ann S. Hunter ◽  
Robert L. Ludke
Keyword(s):  
Medical Center ◽  
Veterans Administration ◽  
Administration Medical
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