Raquia/ Spinal anesthesia

Octubre 11, 2015. No. 2111Octubre, mes de lucha contra cáncer de mama.

Anestesia espinal en altitudes bajas y moderadas. Una comparación de parámetros de anestesia y cambios hemodinámicos Spinal anaesthesia at low and moderately high altitudes: a comparison of anaesthetic parameters and hemodynamic changes. Aksoy M, Ince I, Ahıskalıoglu A, Karaca O, Bayar F, Erdem AF. BMC Anesthesiol. 2015 Sep 10;15(1):123. doi: 10.1186/s12871-015-0104-y. CONCLUSIONS: Hemodynamic variations and more anaesthetic requirements following the spinal anaesthesia may be observed at moderately high altitudes compared to the sea level.  PDF Monitoreo de la function coclear después de anestesia subaracnoidea Cochlear Function Monitoring after Spinal Anesthesia. Janecka-Placek A, Lisowska G, Paradysz A, Misiołek H. Med Sci Monit. 2015 Sep 17;21:2767-73. doi: 10.12659/MSM.893718. Abstract BACKGROUND The aim of the study was to examine the effect of spinal anesthesia on the function of cochlear outer hair cells (OHCs), determined by means of objective distortion product otoacoustic emissions (DPOAE) testing. To the best of our knowledge, our study was the second OAE-based analysis of cochlear function during spinal anesthesia, and the only experiment including such a large group of patients. MATERIAL AND METHODS The study included 20 patients (18 men and 2 women) subjected to a scheduled uretherorenoscopic lithotripsy with routine spinal anesthesia with 10 mg (2 ml) of 0.5% hyperbaric bupivacaine and 50 μg (1 ml) of fentanyl. The levels of DPOAEs and background noise at 1000-6000 Hz were recorded prior to and immediately after the anesthesia, and on the postoperative day 2. RESULTS We did not find significant differences between DPOAEs values recorded prior to and immediately after the anesthesia. The only exception pertained to 5652 Hz, at which a significantly higher level of DPOAEs was observed immediately after the anesthesia. The levels of DPOAEs at 2002 Hz and 2380 Hz collected on the postoperative day 2 were significantly higher than the respective baseline values. Irrespective of the frequency and time of testing, we did not find any significant differences between the recorded levels of background noise. CONCLUSIONS Our findings point to the lack of a detrimental effect of spinal anesthesia on objectively evaluated cochlear function, and thus suggest that this method is safe, even for OHCs, which are extremely susceptible to exogenous and endogenous injuries. PDF

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