TY - JOUR
T1 - Association of ketamine use during procedural sedation with oxygen desaturation and healthcare utilisation
T2 - a multicentre retrospective hospital registry study
AU - Salloum, Elie
AU - Lotte Seibold, Eva
AU - Azimaraghi, Omid
AU - Rudolph, Maíra I.
AU - Beier, Juliane
AU - Schaefer, Maximilian S.
AU - Sauer, William J.
AU - Tam, Christopher
AU - Fassbender, Philipp
AU - Kiyatkin, Michael
AU - Eikermann, Matthias
AU - Wongtangman, Karuna
N1 - Publisher Copyright:
© 2023 British Journal of Anaesthesia
PY - 2024/4
Y1 - 2024/4
N2 - Background: We investigated the effects of ketamine on desaturation and the risk of nursing home discharge in patients undergoing procedural sedation by anaesthetists. Methods: We included adult patients who underwent procedures under monitored anaesthetic care between 2005 and 2021 at two academic healthcare networks in the USA. The primary outcome was intraprocedural oxygen desaturation, defined as oxygen saturation <90% for ≥2 consecutive minutes. The co-primary outcome was a nursing home discharge. Results: Among 234,170 included patients undergoing procedural sedation, intraprocedural desaturation occurred in 5.6% of patients who received ketamine vs 5.2% of patients who did not receive ketamine (adjusted odds ratio [ORadj] 1.22, 95% confidence interval [CI] 1.15–1.29, P<0.001; adjusted absolute risk difference [ARDadj] 1%, 95% CI 0.7–1.3%, P<0.001). The effect was magnified by age >65 yr, smoking, or preprocedural ICU admission (P-for-interaction <0.001, ORadj 1.35, 95% CI 1.25–1.45, P<0.001; ARDadj 2%, 95% CI 1.56–2.49%, P<0.001), procedural risk factors (upper endoscopy of longer than 2 h; P-for-interaction <0.001, ORadj 2.91, 95% CI 1.85–4.58, P<0.001; ARDadj 16.2%, 95% CI 9.8–22.5%, P<0.001), and high ketamine dose (P-for-trend <0.001, ORadj 1.61, 95% CI, 1.43–1.81 for ketamine >0.5 mg kg−1). Concomitant opioid administration mitigated the risk (P-for-interaction <0.001). Ketamine was associated with higher odds of nursing home discharge (ORadj 1.11, 95% CI 1.02–1.21, P=0.012; ARDadj 0.25%, 95% CI 0.05–0.46%, P=0.014). Conclusions: Ketamine use for procedural sedation was associated with an increased risk of oxygen desaturation and discharge to a nursing home. The effect was dose-dependent and magnified in subgroups of vulnerable patients.
AB - Background: We investigated the effects of ketamine on desaturation and the risk of nursing home discharge in patients undergoing procedural sedation by anaesthetists. Methods: We included adult patients who underwent procedures under monitored anaesthetic care between 2005 and 2021 at two academic healthcare networks in the USA. The primary outcome was intraprocedural oxygen desaturation, defined as oxygen saturation <90% for ≥2 consecutive minutes. The co-primary outcome was a nursing home discharge. Results: Among 234,170 included patients undergoing procedural sedation, intraprocedural desaturation occurred in 5.6% of patients who received ketamine vs 5.2% of patients who did not receive ketamine (adjusted odds ratio [ORadj] 1.22, 95% confidence interval [CI] 1.15–1.29, P<0.001; adjusted absolute risk difference [ARDadj] 1%, 95% CI 0.7–1.3%, P<0.001). The effect was magnified by age >65 yr, smoking, or preprocedural ICU admission (P-for-interaction <0.001, ORadj 1.35, 95% CI 1.25–1.45, P<0.001; ARDadj 2%, 95% CI 1.56–2.49%, P<0.001), procedural risk factors (upper endoscopy of longer than 2 h; P-for-interaction <0.001, ORadj 2.91, 95% CI 1.85–4.58, P<0.001; ARDadj 16.2%, 95% CI 9.8–22.5%, P<0.001), and high ketamine dose (P-for-trend <0.001, ORadj 1.61, 95% CI, 1.43–1.81 for ketamine >0.5 mg kg−1). Concomitant opioid administration mitigated the risk (P-for-interaction <0.001). Ketamine was associated with higher odds of nursing home discharge (ORadj 1.11, 95% CI 1.02–1.21, P=0.012; ARDadj 0.25%, 95% CI 0.05–0.46%, P=0.014). Conclusions: Ketamine use for procedural sedation was associated with an increased risk of oxygen desaturation and discharge to a nursing home. The effect was dose-dependent and magnified in subgroups of vulnerable patients.
KW - hypoxaemia
KW - ketamine
KW - monitored anaesthesia care (MAC)
KW - nursing home discharge
KW - oxygen desaturation
KW - procedural sedation
UR - http://www.scopus.com/inward/record.url?scp=85179786071&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85179786071&partnerID=8YFLogxK
U2 - 10.1016/j.bja.2023.11.016
DO - 10.1016/j.bja.2023.11.016
M3 - Article
C2 - 38087741
AN - SCOPUS:85179786071
SN - 0007-0912
VL - 132
SP - 779
EP - 788
JO - British Journal of Anaesthesia
JF - British Journal of Anaesthesia
IS - 4
ER -