The DOI matches its Crossref record; 10 of the 10 references it cites were found in a registry or an index.
Incidence of Intraoperative Hypotension as a Function of the Chosen Definition: Literature Definitions Applied to a Retrospective Cohort Using Automated Data Collection
Abstract
Background: Intraoperative hypotension (IOH) is a common side effect of general anesthesia and has been reported to be associated with adverse perioperative outcomes. These associations were found using different definitions for IOH. It is unknown whether the incidences of IOH found with those different definitions are comparable. The authors aimed to describe the relation between the chosen definition and incidence of IOH. Methods: First, a systematic literature search was performed to identify recent definitions of IOH that have been used in the anesthesia literature. Subsequently, these definitions were applied to a cohort of 15,509 consecutive adult patients undergoing noncardiac surgery during general anesthesia. The incidence of IOH according to the different threshold values was calculated, and the effect of a defined minimal duration of a hypotensive episode was studied. Results: Many different definitions of IOH were found. When applied to a cohort of patients, these different definitions resulted in different IOH incidences. Any episode of systolic blood pressure below 80 mmHg was found in 41% of the patients, whereas 93% of the patients had at least one episode of systolic blood pressure more than 20% below baseline. Both definitions are frequently used in the literature. The relation between threshold values from the literature and IOH incidence shows an S-shaped cumulative incidence curve, with occurrence frequencies of IOH varying from 5% to 99%. Conclusions: There is no widely accepted definition of IOH. With varying definitions, many different incidences can be reproduced. This might have implications for previously described associations between IOH and adverse outcomes.
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Cites
Anesthetic Management and One-Year Mortality After Noncardiac Surgery
Monk, T. G., Saini, V., Weldon, B. C., & Sigl, J. C. (2005) · Anesthesia & Analgesia · doi:10.1213/01.ane.0000147519.82841.5e · Cited by 890
Epidural Anesthesia, Hypotension, and Changes in Intravascular Volume
Holte, K., Foss, N. B., Svensén, C., Lund, C., Madsen, J. L., & Kehlet, H. (2004) · Anesthesiology · doi:10.1097/00000542-200402000-00016 · Cited by 185
Sanborn, K. V., Castro, J., Kuroda, M., & Thys, D. M. (1996) · Anesthesiology · doi:10.1097/00000542-199611000-00004 · Cited by 176
Heart Rate Variability Predicts Severe Hypotension after Spinal Anesthesia
Hanss, R., Bein, B., Weseloh, H., Bauer, M., Cavus, E., Steinfath, M., Scholz, J., & Tonner, P. H. (2006) · Anesthesiology · doi:10.1097/00000542-200603000-00022 · Cited by 108
Hanss, R., Bein, B., Francksen, H., Scherkl, W., Bauer, M., Doerges, V., Steinfath, M., Scholz, J., & Tonner, P. H. (2006) · Anesthesiology · doi:10.1097/00000542-200604000-00005 · Cited by 94
Lawrence, P. F., Alves, J. C., Jicha, D. L., Bhirangi, K., & Dobrin, P. B. (1998) · Journal of Vascular Surgery · doi:10.1016/s0741-5214(98)70363-5 · Cited by 84
Boccara, G., Ouattara, A., Godet, G., Dufresne, E., Bertrand, M., Riou, B., & Coriat, P. (2003) · Anesthesiology · doi:10.1097/00000542-200306000-00007 · Cited by 83
Klasen, J., Junger, A., Hartmann, B. R., Benson, M., Jost, A., Banzhaf, A., Kwapisz, M., & Hempelmann, G. (2003) · Anesthesia & Analgesia · doi:10.1213/01.ane.0000057601.90930.18 · Cited by 39
Greilich, P. E., Virella, C. D., Rich, J. M., Kurada, M., Roberts, K. W. S., Warren, J. F., & Harford, W. V. (2001) · Anesthesia & Analgesia · doi:10.1097/00000539-200101000-00016 · Cited by 35
Verbrugge, S. J. C., Klimek, M., & Klein, J. (2004) · Der Anaesthesist · doi:10.1007/s00101-003-0644-2 · Cited by 8
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Sanders, R. D., Hughes, F., Shaw, A., Thompson, A., Bader, A., Hoeft, A., Williams, D. A., Grocott, M. P. W., Mythen, M. G., Miller, T. E., et al. (2019) · British Journal of Anaesthesia · doi:10.1016/j.bja.2019.01.018 · Cited by 346
Machine learning in clinical decision making
Adlung, L., Cohen, Y., Mor, U., & Elinav, E. (2021) · Med · doi:10.1016/j.medj.2021.04.006 · Cited by 282
Davies, S. J., Vistisen, S. T., Jian, Z., Hatib, F., & Scheeren, T. W. L. (2020) · Anesthesia & Analgesia · doi:10.1213/ane.0000000000004121 · Cited by 219
Wei, A., Ma, S., Dou, Y., Wang, X., Wu, J., Zhou, S., Deng, Y., Liu, X., Li, D., & Yang, M. (2023) · PLOS ONE · doi:10.1371/journal.pone.0282930 · Cited by 33
Metadata
- Authors
- Bijker, J. B., van Klei, W. A., Kappen, T. H., van Wolfswinkel, L., Moons, K. G. M., & Kalkman, C. J.
- Venue
- Anesthesiology
- Published
- 2007-08-01
- Volume
- 107
- Issue
- 2
- Pages
- 213-220
- ISSN
- 0003-3022 (ISSN-L)
- OpenAlex
- W1966653619
- Cited by
- 710
- References
- 10
- FWCI
- 6.73
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Incidence of Intraoperative Hypotension as a Function of the Chosen Definition: Literature Definitions Applied to a Retrospective Cohort Using Automated Data Collection. https://app.cochat.ai/papers/10.1097/01.anes.0000270724.40897.8e
- The paper
- Bijker, J. B., van Klei, W. A., Kappen, T. H., van Wolfswinkel, L., Moons, K. G. M., & Kalkman, C. J. (2007). Incidence of Intraoperative Hypotension as a Function of the Chosen Definition: Literature Definitions Applied to a Retrospective Cohort Using Automated Data Collection. Anesthesiology. https://doi.org/10.1097/01.anes.0000270724.40897.8e
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