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Revista Brasileira de Anestesiologia
Print version ISSN 0034-7094
KAULING, Ana Laura Colle et al. Conscious sedation for upper digestive endoscopy performed by endoscopists. Rev. Bras. Anestesiol. [online]. 2010, vol.60, n.6, pp. 580-583. ISSN 0034-7094. http://dx.doi.org/10.1590/S0034-70942010000600003.
BACKGROUND AND OBJECTIVES: Conscious sedation in the ambulatory setting albeit common is not risk-free. The present study aimed at evaluating the blood pressure, heart rate and peripheral oxygen saturation in patients submitted to conscious sedation for upper digestive endoscopy performed by endoscopists. METHODS: A total of 105 patients of both sexes were selected, aged 18 and older, physical status ASA I to III, submitted to upper digestive endoscopy under conscious sedation. The patients were monitored through noninvasive blood pressure measurements, pulse oximetry and heart rate recorded before, during and after the examination. The sedation was carried out with midazolam or meperidine. RESULTS: The variations in oxygen saturation, blood pressure and heart rate throughout time were not statistically significant. However, an incidence of hypoxia of 41.9% was observed; 53.3% of the cases presented arterial hypotension and 25.6% presented tachycardia. Obese patients were more prone to hypoxia and hypotension than those non obese. CONCLUSIONS: The occurrence of hypoxia and arterial hypotension is common in upper digestive endoscopic examinations under conscious sedation when midazolam and meperidine are associated. Obese patients demonstrated to be more susceptible to hypoxemia and arterial hypotension.
Keywords : COMPLICATIONS [arterial hypertension]; COMPLICATIONS [hypoxia]; DIAGNOSTIC ASSESSMENT; digestive endoscopy; PRE-ANESTHETIC MEDICATION [meperidine]; PRE-ANESTHETIC MEDICATION [midazolam]; SEDATION.