Summary
Hemoglobin desaturation and arrhythmias have been reported during diagnostic gastroscopy and colonoscopy. During endoscopic placement of percutaneous gastrostomy tubes (PEG), the gastroscope is inserted twice and the stomach is markedly distended, thus increasing the potential risk of complications. Also, the procedure is frequently performed in patients exhibiting underlying systemic disease or little respiratory reserve. Patients undergoing PEG or percutaneous endoscopic jejunostomy (PEJ) were studied prospectively. Blood pressure, pulse, pulse oximetry, and lead II ECG tracings were obtained. Measurements were made before sedation, after sedation, at gastroscope insertion, at gastrostomy placement, at gastroscope reinsertion, and at 5 min after the procedure. In all, 50 patients (mean age, 56.8 years; 16 women, 26 men) underwent PEG only (39 cases) or PEG/PEJ (11 cases). The endoscopy suite was the site for the procedure in 38 cases and the intensive care unit was used in 12 cases. The mean time required for PEG and PEG/PEJ was 14.7± 1.1 and 18.9±2 min, respectively. Blood pressure remained stable throughout the procedure. Sinus tachycardia was observed in 72% of patients. Arterial oxygen saturation decreased after the administration of intravenous sedation but remained constant during the procedure. We reached the following conclusions: (1) desaturation occurs during sedation, (2) saturation remains constant during PEG/PEJ, (3) the mean blood pressure remains constant during PEG/PEJ, and (4) PEG/PEJ are safe procedures and monitoring should be individualized.
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Morlote, E.B., Zweng, T.N. & Strodel, W.E. Hemodynamic monitoring and pulse oximetry during percutaneous gastrostomy and jejunostomy: necessity or nuisance?. Surg Endosc 5, 130–134 (1991). https://doi.org/10.1007/BF02653219
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DOI: https://doi.org/10.1007/BF02653219