Radiologic measurement of cochlea and hearing preservation rate using slim straight electrode (CI422) and round window approach.

Hearing preservation surgery constitutes a considerable branch of cochlear implantation surgery and is being steadily developed and perfected. The aim of the study was to verify if insertion of a cochlear implant electrode according to individually calculated linear insertion depth improves hearing preservation. We evaluated the relations between the size of a cochlea, insertion depth angle, linear insertion depth and hearing preservation rate (HP) according to Hearing Preservation Classification in a retrospective case review of 54 patients implanted with a slim straight electrode Nucleus CI422 in 2008-2011. Group HP was 0.75 at activation, 0.67 at 12 months (for 53 patients) and 0.60 at 24 months. In 53 cases, the mean insertion depth angle was 375° (SD 17°); mean calculated cochlear duct length 35.87 mm (SD 1.95); mean calculated linear insertion depth 23.14 mm (SD 1.68). There was no significantly relevant relation between HP values and angular insertion depth or insertion depth. Preoperative measurements of cochlea and specific parameters such as linear insertion depth have no effect on hearing preservation. Poor hearing preservation in some deep insertion cases cannot be explained entirely by the electrode position.

Direct access in physical therapy: a systematic review.

BACKGROUND: Grooving evidence suggests that patients could have Direct Access (DA) to physiotherapy. It represents a new model of care, which might lead to improve patients' health status and decrease cost services for healthcare compared with a secondary care referral pathway. The aim of this study is to explore the evidence regarding feasibility, effectiveness, costs, safety and patient satisfaction through DA compared to other organizational models. METHODS: A systematic review was carried out through MEDLINE, CINAHL, and EMBASE databases from their inceptions until March 2018 using keywords related with DA. All articles in English, Italian or Polish comparing the modality of DA with any other organizational modality were included. Two reviewers independently selected eligible studies, extracted the data, and assessed methodological quality using the Newcastle-Ottawa Scale for cohort studies. RESULTS: 1593 articles were initially identified, and thirteen studies met the inclusion criteria. The mean NOS score for study quality was 6.4 ± 1.4 out of a possible total score of nine points. Patients impairments and health care status, were similar through all studies. DA showed less number of physiotherapy treatments, visits to physician, imaging performed and required fewer non-steroidal anti-inflammatory drugs and secondary care. Patients were more satisfied with the service in comparison to the group referred by the physician. and costs per subject were lower. DA patients were younger, with a higher level of education; mostly, they presented a less severe clinical condition and a more acute pathologies related to the spine. No harms were reported. Only one study assessed the clinical safety of the DA. CONCLUSION: The findings suggest that DA to physiotherapy is feasible considering the clinical and economic point of view. However, more research is still needed due to the low evidence of the reviewed studies and to explore the clinical safety of DA.

Preservation of cochlear structures and hearing when using the Nucleus Slim Straight (CI422) electrode in children.

OBJECTIVE: In cochlear implantation, there are two crucial factors promoting hearing preservation: an atraumatic surgical approach and selection of an electrode that does not damage cochlear structures. This study aimed to evaluate hearing preservation in children implanted with the Nucleus Slim Straight (CI422) electrode. METHODS: Nineteen children aged 6-18 years, with partial deafness, were implanted using the 6-step Skarzynski procedure. Electrode insertion depth was 20-25 mm. Hearing status was assessed with pure tone audiometry before surgery, and at 1, 5, 9, 12 and 24 months after surgery. Electrode placement was confirmed with computed tomography. RESULTS: Mean hearing preservation in the study group at activation of the cochlear implant was 73 per cent (standard deviation = 37 per cent). After 24 months, it was 67 per cent (standard deviation = 45 per cent). On a categorical scale, hearing preservation was possible in 100 per cent of cases. CONCLUSION: Hearing preservation in children implanted with the Nucleus CI422 slim, straight electrode is possible even with 25 mm insertion depth, although the recommended insertion depth is 20 mm. A round window approach using a soft, straight electrode is most conducive to hearing preservation.

Deep insertion - round window approach by using SRA electrode.

Hearing preservation surgery requires specially a traumatic technique. Having some preoperative anatomical data of the size of patient's cochlea surgeon can design his or her insertion depth. In the study we have evaluated a relation between hearing preservation rate and angular insertion depth estimated intraoperatively and postoperatively having measured insertion angle from radiological assessment and calculations given by Escude. There has not been no statistically significant difference between insertion depth angle, either estimated intraoperatively and measured and calculated post-operatively, and hearing preservation rate in the group. This analysis confirms a traumaticy of insertion in hearing preservation surgery.

Diffuse nodular lymphoid hyperplasia of the gastrointestinal tract in patient with selective immunoglobulin A deficiency and sarcoid-like syndrome--case report.

Nodular lymphoid hyperplasia is uncommon in adult patients. Associated diseases are common variable immunodeficiency (CVI) and lymphoid tissue malignancies. In this case report we focus on clinical presentation and differential diagnosis of diffuse nodular lymphoid hyperplasia of the gastrointestinal tract coexisting with selective immunoglobulin A deficiency and sarcoid-like syndrome.

MR imaging of seven presumed cases of central pontine and extrapontine myelinolysis.

MRI was performed in seven patients with presumed central pontine and extrapontine myelinolysis. The underlying diseases were diabetes, lung cancer, Wilson disease, trauma, alcoholism, renal insufficiency and hemodialysis. CPM was found in four cases (in two of them extrapontine lesions were considered as resulting from Wilson disease), CPM and EPM in three patients. The localization of extrapontine changes included cerebellum, cerebral peduncles, caudate and lentiform nuclei, internal capsules, white matter and cortex of the cerebrum.