TY - JOUR
T1 - Oxygen desaturation and changes in breathing pattern in patients undergoing colonoscopy and gastroscopy
AU - Barkin, Jamie S.
AU - Krieger, Bruce
AU - Blinder, Mario
AU - Bosch-Blinder, Lourdes
AU - Goldberg, Robert I
AU - Phillips, Richard
PY - 1989/1/1
Y1 - 1989/1/1
N2 - The respiratory effect of diagnostic colonoscopy and upper endoscopy were studied in 32 elderly patients. Twenty-two underwent colonoscopy and 10 upper endoscopy. In the group undergoing upper endoscopy, 4 of 10 patients experienced a decrease in oxygen desaturation ≥4% during the medication period; an additional 2 patients desaturated during the procedure. In the group undergoing colonoscopy, 12 of 22 patients experienced oxygen desaturation during the medication period; 3 other patients desaturated during the procedure. Mean SaO2 for each group was lowest (p<0.05) during the medication period. Central apneas occurred in 13 of the patients undergoing colonoscopy during the medication period; however, only 8 of these patients with apneas experienced desaturation ≥4% and the periods of desaturation did not correlate with the periods of apneas. Oxygen desaturation ≥4% occurs frequently during both upper endoscopy and colonoscopy in this elderly population. This is related to the effects of sedation; the procedure itself worsened the desaturation in only 16% of the patients. Furthermore, the desaturation did not correlate with changes in the breathing patterns of the patients. Low-flow oxygen and/or close monitoring of patients during and subsequent to administration of medication is advised.
AB - The respiratory effect of diagnostic colonoscopy and upper endoscopy were studied in 32 elderly patients. Twenty-two underwent colonoscopy and 10 upper endoscopy. In the group undergoing upper endoscopy, 4 of 10 patients experienced a decrease in oxygen desaturation ≥4% during the medication period; an additional 2 patients desaturated during the procedure. In the group undergoing colonoscopy, 12 of 22 patients experienced oxygen desaturation during the medication period; 3 other patients desaturated during the procedure. Mean SaO2 for each group was lowest (p<0.05) during the medication period. Central apneas occurred in 13 of the patients undergoing colonoscopy during the medication period; however, only 8 of these patients with apneas experienced desaturation ≥4% and the periods of desaturation did not correlate with the periods of apneas. Oxygen desaturation ≥4% occurs frequently during both upper endoscopy and colonoscopy in this elderly population. This is related to the effects of sedation; the procedure itself worsened the desaturation in only 16% of the patients. Furthermore, the desaturation did not correlate with changes in the breathing patterns of the patients. Low-flow oxygen and/or close monitoring of patients during and subsequent to administration of medication is advised.
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U2 - 10.1016/S0016-5107(89)72904-7
DO - 10.1016/S0016-5107(89)72904-7
M3 - Article
C2 - 2599296
AN - SCOPUS:0024834597
VL - 35
SP - 526
EP - 530
JO - Gastrointestinal Endoscopy
JF - Gastrointestinal Endoscopy
SN - 0016-5107
IS - 6
ER -