Publications by authors named "Jan Lazak"
Aim: To evaluate the most important factors of quality of life in patients after vestibular schwannoma surgery.
Materials And Methods: Patients with unilateral sporadic occurrence of vestibular schwannoma who underwent surgery via suboccipital-retrosigmoid approach were included in the prospective study (2018-2021). Patients after previous Leksell gamma knife irradiation (or other methods of stereotactic radiosurgery) were excluded.
The incidence of sporadic vestibular schwannoma has significantly increased over the past few decades. However, there is no method currently available to accurately predict the risk of subsequent tumor growth. The difference in the management of five patient groups has been evaluated: wait and scan, conversion to microsurgery, conversion to stereoradiotherapy, sterioradiotherapy, and microsurgery.
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- Advances in vestibular schwannoma surgery have allowed for the preservation of the auditory nerve, but hearing outcomes remain unpredictable.
- A study of 28 patients who underwent microsurgery showed a small but significant deterioration in hearing post-surgery, especially in those with abnormalities in the internal acoustic meatus.
- Long-term follow-up indicated that while some hearing degradation occurs, the inner ear's structure tended to normalize after surgery, suggesting a complex relationship between tumor characteristics and hearing preservation.
Hearing improvement after vestibular schwannoma surgery in the era of the hearing preservation rule - case report and literature review.
Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub
September 2022
Article Synopsis
- * A case report is presented where a patient improved from unhelpful to useful hearing levels after undergoing surgery using a suboccipital retrosigmoid approach and thorough audiovestibular assessments.
- * Key predictive factors for hearing improvement identified include sudden sensorineural hearing loss prior to surgery, elicitable otoacoustic emissions, and tumor origin from the superior vestibular nerve, though overall research on the topic remains limited.