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Vestibular Schwannoma - Springer Nature

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Last Updated: 09 August 2022

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Pediatric vestibular schwannoma without evidence of neurofibromatosis: consecutive 18 microsurgical experiences

Purpose Sporadic vestibular schwannoma is rare in children in comparison to adults, and comprehensive investigations of a patient's using a single set protocol are rare. At the initial diagnosis, this research explores our surgical experience with pediatric VSs in the absence of clinical signs of neurofibromatosis type 2 at the time. Two new hypervascular tumors were cured by preoperative embolization. During the follow-up period, the tumor resection rate was 95 percent under adequate intraoperative neuromonitoring, and no further surgery was required. In 6 of 11 patients, no patients developed permanent facial nerve palsy, and serviceable hearing function was preserved. Conclusions Under careful neuromonitoring in pediatric patients with sporadic VS, safe and adequate tumor resection was achieved, but this is often difficult due to hypervascularity, a small cranium, and significant meat extension. Preoperative embolization can help ensure the resection of hypervascular tumors.

Source link: https://doi.org/10.1007/s00381-022-05477-9


Evaluating growth trends of residual sporadic vestibular schwannomas: a systematic review and meta-analysis

In certain situations, incomplete resection becomes a viable alternative to safeguard facial nerve function and patient quality of life. Although a majority of earlier research reported incompletely resected sporadic VSs as dormant, new research revealed a higher growth rate after IR, so an analysis of the residual VS growth rates may have important implications for neurosurgeons, neuro-otologists, neuropathologists, and radiologists. Methods The study was carried out in accordance with PRISMA regulations. The purpose of this report is to determine the growth rate of residual sporadic VS following IR and to look at variables associated with residual VS. After IR, full-text papers were reviewed examining growth rates in at least ten patients with residual VS after IR was determined. Age, sex, pre-operative tumor number, cystic tumor sub-type, MIB-1 index, and intracanalicular tumor location were not related to persistent growth.

Source link: https://doi.org/10.1007/s11060-022-04051-2


Stereotactic radiosurgery ensures an effective and safe long-term control of Koos grade IV vestibular schwannomas: a single-center, retrospective, cohort study

Compared to I-III VSs, we wanted to investigate SRS' long-term effect for Koos grade IV. Methods We had 452 patients with VSs who were treated with SRS at our hospital from 1990 to 2021. Both Koos grade IV VSs and 95% and 92%, respectively, for Koos grade I VSs and 92%, respectively. At 5 years for Koos grade IV VSs and 78% for Koos grade I. u2013III VSs, hearing preservation rates were 61% at 5 years for Koos grade IV VSs and 78% for Koos grade I vss and 78% for Koos grade I. U2013III VSs. With Koos grade IV VSs, acute transient tumor formation was more prevalent, but all related signs were reduced in proportion to tumor shrinkage. Conclusion: SRS may lead to long-term tumor control and adequate neurological preservation in the treatment of Koos grade IV VSs, which is similar to those treated with Koos grade Iu2012III VSs.

Source link: https://doi.org/10.1007/s11060-022-04058-9

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions