jueves, 12 de enero de 2012

Sedación consciente en odontología


Atentamente
Anestesiología y Medicina del Dolor

Evaluación de SEDline para mejorar la seguridad y eficiencia de la sedación consciente 
Evaluation of the SEDline to improve the safety and efficiency of conscious sedation.
Caputo TD, Ramsay MA, Rossmann JA, Beach MM, Griffiths GR, Meyrat B, Barnes JB, Kerns DG, Crump B, Bookatz B, Ezzo P.
Proc (Bayl Univ Med Cent). 2011 Jul;24(3):200-4.
Abstract
Brain function monitors have improved safety and efficiency in general anesthesia; however, they have not been adequately tested for guiding conscious sedation for periodontal surgical procedures. This study evaluated the patient state index (PSI) obtained from the SEDline monitor (Sedline Inc., San Diego, CA) to determine its capacity to improve the safety and efficiency of intravenous conscious sedation during outpatient periodontal surgery. Twenty-one patients at the periodontics clinic of Baylor College of Dentistry were admitted to the study in 2009 and sedated to a moderate level using midazolam and fentanyl during periodontal surgery. The PSI monitoring was blinded from the clinician, and the following data were collected: vital signs, Ramsay sedation scale (RSS), medications administered, adverse events, PSI, electroencephalography, and the patients' perspective through visual analogue scales. The data were correlated to evaluate the PSI's ability to assess the level of sedation. Results showed that the RSS and PSI did not correlate (r = -0.25) unless high values associated with electromyographical (EMG) activity were corrected (r = -0.47). Oxygen desaturation did not correlate with the PSI (r = -0.08). Satisfaction (r = -0.57) and amnesia (r = -0.55) both increased as the average PSI decreased. In conclusion, within the limits of this study, PSI appears to correlate with amnesia, allowing a practitioner to titrate medications to that effect. It did not provide advance warning of adverse events and had inherent inaccuracies due to EMG activity during oral surgery. The PSI has the potential to increase safety and efficiency in conscious sedation but requires further development to eliminate EMG activity from confounding the score
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3124903/pdf/bumc0024-0200.pdf 
Monitorio BIS de la profundidad de sedación en pacientes dentales pediátricos
Bispectral index monitoring of sedation depth in pediatric dental patients.
Haberland CM, Baker S, Liu H.
Yale-New Haven Hospital, New Haven, Connecticut 06510, USA.chaberland@gmail.com
Anesth Prog. 2011 Summer;58(2):66-72
Abstract
The bispectral index (BIS) monitor records electroencephalogram waveforms and provides an objective measure of the hypnotic effect of a sedative drug on brain activity. The aim of this pilot study was to use the BIS monitor to evaluate the depth of procedural sedation in pediatric dental patients and to assess if the BIS monitor readings correlate with a validated pediatric sedation scale, the University of Michigan Sedation Scale (UMSS), in determining the level of sedation in these patients. Thirty-five pediatric dental patients requiring sedation were studied prospectively. A baseline BIS reading was obtained and during the procedure an independent observer recorded the BIS every 5 minutes. The operator, who was blinded to the BIS results, determined the UMSS scale at the same 5-minute interval. The patients were monitored postoperatively for 1 hour. There was a significant but moderate correlation between BIS values and UMSS scores. Percentage of agreement and kappa coefficient using all the observations were also calculated. The percentage of agreement was 37.8%, the kappa coefficient was 0.18 (P < .0001), and the weighted kappa coefficient 0.26 (P < .0001). A lack of correlation was noted between the deeper levels of UMSS sedation scores and BIS values. This study demonstrated a significant correlation between BIS values and the UMSS score in pediatric dental patients undergoing mild to moderate sedation. Based on our results, it appears that the BIS monitor may be useful during mild or moderate sedations to establish the level of sedation objectively without the need to stimulate the patient.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3198129/pdf/i0003-3006-58-2-66.pdf
 
Cambios hemodinámicos y ventilatorios durante la cirugía de implantes con sedación consciente intravenosa.
Hemodynamic and ventilatory changes during implant surgery with intravenous conscious sedation.
González-Lemonnier S, Bovaira-Forner M, Peñarrocha-Diago D, Peñarrocha-Diago MA.
Valencia University Medical and Dental School, Valencia, Spain.
Med Oral Patol Oral Cir Bucal. 2011 Jul 1;16(4):e541-5.
Abstract
PURPOSE: This study was conducted to determine the hemodynamic and ventilatory changes during implant surgery with intravenous conscious sedation, and whether preoperative anxiety, gender or age influence these parameters. PATIENTS AND METHODS: A prospective study carried out between May 2004 and February 2007, on 102 patients treated with dental implants under local anesthesia and conscious intravenous sedation. Patients completed a questionnaire prior to surgery to evaluate preoperative dental anxiety using Corah's scale. The hemodynamic and ventilatory changes were evaluated by monitoring systolic pressure (SP), diastolic pressure (DP), heart rate (HR) and oxygen saturation (SaO2). These values were collected at 5 points during surgery; before commencing the operation (baseline value), during local anesthetic injection, at the moment of incision and raising of a mucoperiosteal flap, during implant placement, and finally at suturing. Intravenous conscious sedation was administered between baseline value and injection of the local anesthetic. RESULTS: The highest SP and DP were recorded at baseline and at suturing. The highest HR was recorded at the moment of incision and raising of the mucoperiosteal flap; the lowest SaO2 was recorded at local anesthetic injection. There was no relationship between hemodynamic and ventilatory values and preoperative anxiety or gender. A greater age was associated with higher SP and lower SaO2, these differences being statistically significant. CONCLUSIONS: Most of the cardiovascular and ventilatory changes induced by the implant surgery with intravenous conscious sedation were within normal ranges. The results indicate that midazolam with fentanyl do not produce important hemodynamic and ventilatory changes, being a good association for intravenous conscious sedation in dental implant surgery.
http://www.medicinaoral.com/pubmed/medoralv16_i4_p541.pdf
 
 
Atentamente
Anestesiología y Medicina del Dolor

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