2015年8月2日 · Pure-Tone Average (PTA): average thresholds for the speech frequencies (500, 1000, 2000 Hz) Typically should be within 10 dB of the speech reception threshold 6.

2023年8月23日 · Sensorineural hearing loss (SNHL) is the most common type and accounts for the majority of all hearing loss. SNHL refers to any cause of hearing loss due to a pathology of the cochlea, auditory nerve, or central nervous system.

Sensorineural hearing loss (SNHL) is a type of hearing loss in which the root cause lies in the inner ear, sensory organ (cochlea and associated structures), or the vestibulocochlear nerve (cranial nerve VIII). SNHL accounts for about 90% of reported hearing loss.

Pure tone audiometry (PTA) was shown to have the poorest diagnostic efficacy in managing middle-ear diseases in children with CP [8,58–60]. This has been attributed to the ineffective masking when portable audiometers are used and contamination of bone conduction thresholds when children are examined in non-sound treated settings [8] .

感音神经性听力损失 (Sensorineural hearing loss, SNHL)是最常见的感觉障碍之一。根据世界卫生组织(WHO)的数据，听力损失影响着全世界约4.66亿人，其中包括3400万儿童。

2024年10月6日 · This calculator provides the calculation of pure tone average (PTA), sensorineural hearing loss (SNHL), presbycusis index (PB), and PB category for audiology applications. Calculation Example: The pure tone average (PTA) is a measure of the average hearing level at specific frequencies.

2023年9月28日 · Pure-tone average (PTA) is the average of hearing sensitivity at 500, 1000, and 2000. This average should approximate the speech reception threshold (SRT), within 5 dB, and the speech...

Pure Tone Average (PTA) is usually used to summaries the degree of hearing loss. because it often agrees with hearing ability for speech.. The PTA is usually compared with what’s known as Speech Recognition ( reception) threshold (SRT) and any significant difference (> 5-8dB) between PTA and SRT considered of clinical significant.

Sensorineural hearing losses (SNHL) SNHL are characterized by a reduction in hearing ability due to disorders involving the cochlea and/or the auditory nervous system. This type of hearing loss is usually irreversible. Sensorineural hearing losses can be further divided into sensory and neural losses. A sensory (cochlear) hearing loss occurs ...

2023年8月16日 · Sudden sensorineural hearing loss (SSNHL) is hearing loss that occurs within a 72-hour window due to sensorineural causes rather than a physical blockage (due to excess fluid or earwax, for example). 20 It can be caused by an injury, illness, or exposure to a loud noise, like gunfire or an explosion.