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“Objective: This study aimed to evaluate the interaction of electric and acoustic cues in diotic condition in cochlear implantees.
Materials and Methods: Five adult cochlear implantees with residual contralateral hearing were prospectively evaluated in
hearing aid only (HA), cochlear implant only (CI), and HA + CI modes by audiometry (pure tone, dissyllabic words, and sentences), and sound quality questionnaires. find more CI electrodes corresponding to preserved frequencies in the contralateral ear (free-field aided thresholds, <50 dB) were then deactivated, and patients were retested after 20 to 30 days.
Results: Sentences in silence showed a benefit of CI and the additive effect of HA + CI. As expected, performances with CI alone decreased after apical electrode deactivation. In contrast, speech performances (Marginal Benefit from Acoustic Amplification sentences) in HA + CI mode were not altered by electrode deactivation in silence (90 +/- 5.9% before versus 81 +/- 10.1% after deactivation, not significant, 2-way analysis of variance) or in noise (78 +/- 4.8% before versus 66 +/- 11.9% after deactivation, not significant,
2-way analysis of variance). Performances for dissyllabic words confirmed these results. Questionnaires showed a significant compensation of partial electrode deactivation CH5183284 by the contralateral hearing. Moreover, the human voice was reported to be significantly less metallic.
Conclusion: These results suggested a significant complementarity of acoustic and electric diotic cues but also some redundancy affecting the sound quality.”
“Introduction: We sought to verify, using computed tomography (CT) examinations of infants, which the left ventricle HIF pathway (LV) is compressed and abdominal compression avoided by using the chest compression landmarks recommended by the 2010 American Heart Association (AHA) Guidelines for infant cardiopulmonary resuscitation (CPR).
Methods: Using CT examinations of 63 infants performed
between March 2002 and July 2011, we retrospectively measured the distance between the INL and the xiphoid process, and the distance of the lower third (LT) of the sternum. The distances between LV maximal diameter (LVMD) and xiphoid processes were also measured to determine whether LVs would be compressed by chest compressions. These distances were compared with the finger placements by 20 adults, when placed on infant mannequins for simulated two-finger or two-thumb infant CPR.
Results: The mean distances of the INL and the LT of the sternum were 32 +/- 8 mm and 12 +/- 2 mm from the xiphoid, respectively. The LVMD was placed 15 +/- 6 mm from the xiphoid process. When we overlaid the width of adult finger placement (a mean of 28 mm for two-finger technique, and 23 mm for two-thumb technique), the LV was compressed in 57 patients (90.