Digital Live Imaging of Intraoperative Electrocochleography - First Description of Feasibility and Hearing Preservation During Cochlear Implantation.

INTRODUCTION: Intraoperative electrocochleography (ECochG) during cochlear implantation is a promising tool to preserve residual hearing. However, the time gap between insertion of the electrode and acoustic feedback from the audiologist to the surgeon can cause delay and subsequently irreparable damage to cochlear structures. In this feasibility study, for the first time, real-time visualization of intraoperative ECochG via digital microscope display directly to the surgeon was successfully performed in four patients. MATERIALS AND METHODS: Four patients with residual hearing underwent cochlear implantation. Intraoperative electrocochleography responses were collected and direct visualization during the time of electrode insertion into the surgeon's field of view in the binoculars using augmented real-time digital imaging was realized. The time of electrode insertion was recorded. Hearing preservation was determined by testing postoperative changes in behavioral thresholds. RESULTS: Digital live visualization of intraoperative ECochG using image augmentation in a digital microscope was successfully performed in all cases and enabled direct adaptation of the surgeon's insertion behavior. Mean time of electrode insertion was 129.8 seconds. Postoperative behavioral thresholds were comparable to preoperative taken thresholds. Preservation of residual hearing in the low frequency range was possible. DISCUSSION: This study is the first to describe digital visualization of intraoperative electrocochleography as a new method enabling the surgeon to directly react to changes in amplitude of the cochlea microphonics. Our results show that augmentation of the intraoperative live imaging with electrical potentials could add to hearing preservation during cochlear implantation.

Epithetic nasal reconstruction after total rhinectomy: Oncologic outcomes, immediate and long-term adverse effects, and quality of life.

INTRODUCTION: Total rhinectomy for tumors of the nasal cavity substantially alters patients' appearance and requires local reconstruction. While full nasal epitheses are well-established for this purpose, potential long-term adverse effects and impact on patients' quality of life are not fully understood. METHODS: Sixteen patients who underwent total rhinectomy with ensuing nasal reconstruction with a full nasal epithesis were included in the study. Oncologic outcomes were assessed, and adverse effects and quality of life analyses were performed based on a patient-reported outcomes tool. RESULTS: In patients with squamous cell carcinomas of the nasal cavity, total rhinectomy led to excellent local tumor control. Immediate and long-term adverse effects of total rhinectomy and placement of a nasal epithesis were predominantly limited to the immediate nasal region. While patients were satisfied with their nasal appearance, they reported a worse assessment of their facial appearance and a measurable long-term effect on their psychological well-being. CONCLUSION: Total rhinectomy and reconstruction with a full nasal epithesis is a safe and oncologically sound treatment approach. However, its effects on patients' overall appearance and psychological well-being need to be considered during treatment planning and follow-up.

Increased Immunosuppression Is Related to Increased Amounts of Ascites and Inferior Prognosis in Ovarian Cancer.

BACKGROUND/AIM: The presence of ascites in ovarian cancer patients is considered a negative prognostic factor. The underlying mechanisms are not clearly understood. MATERIALS AND METHODS: The amount of ascites was evaluated, preferably, using diffusion-weighted MRI at primary diagnosis in a retrospective cohort of 214 women with ovarian cancer, in an ordinal manner (amount of ascites: none, limited, moderate, abundant). In a prospective cohort comprising 45 women with ovarian cancer, IL-10 (interleukin), VEGF (vascular endothelial growth factor), TGF-ß (transforming growth factor) and CCL-2 [chemokine (C-C) motif ligand 2] were measured at diagnosis (and at interval debulking, when available). RESULTS: Gradually increasing amounts of ascites were correlated significantly, even after correction for FIGO stage, with reduced survival (p<0.0001) and stronger immunosuppression (IL10 and VEGF). Neoadjuvant chemotherapy reduced immunosuppression, which was observed as a reduction in CCL-2, IL-10 and VEGF. CONCLUSION: The amount of ascites is an independent predictor of survival and correlates with increased immunosuppression.