Occurrence of elevated shock index in acute patients and development of a proportional shock index metric

Thomas Schmidt; Annmarie Touborg Lassen; Uffe Kock Wiil

doi:10.1109/EMBC.2016.7591216

Occurrence of elevated shock index in acute patients and development of a proportional shock index metric

Thomas Schmidt, Annmarie Touborg Lassen, Uffe Kock Wiil

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Although shock index, as the ratio between heart rate and systolic blood pressure, is a well-recognized predictor for adverse outcomes, it is seldom integrated into clinical evaluation procedures as it requires on-the-fly evaluation of multiple terms. In this paper, we investigate the prevalence of elevated shock index in emergency department patients through an analysis of automatic heart rate and blood pressure readings from 809 admissions to an acute bedside ward at a large Danish hospital. The analysis is conducted by evaluating differences in terms of 30 day mortality. Our results indicate that elevated shock indexes are frequent in acute patients. This finding should spur a discussion on the utility of interventions relying on calculations of shock index based on spot measurements. As an alternative, we propose a novel proportional representation of shock index based on automated calculations of temporal shock index aspects.

Original language	English
Title of host publication	2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016
Volume	2016
Publisher	IEEE Press
Publication date	Aug 2016
Pages	2411-2414
Article number	7591216
ISBN (Print)	978-1-4577-0219-8
ISBN (Electronic)	978-1-4577-0220-4
DOIs	https://doi.org/10.1109/EMBC.2016.7591216
Publication status	Published - Aug 2016
Event	38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Orlando, United States Duration: 16. Aug 2016 → 20. Aug 2016 Conference number: 38 http://embc.embs.org/2016/

Conference

Conference	38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Number	38
Country/Territory	United States
City	Orlando
Period	16/08/2016 → 20/08/2016
Internet address	http://embc.embs.org/2016/

Series	Proceedings of the International Conference of the IEEE Engineering in Medicine and Biology Society
ISSN	2375-7477

Keywords

Adult
Aged
Algorithms
Blood Pressure Determination
Blood Pressure/physiology
Denmark
Emergency Service, Hospital
Female
Heart Rate
Humans
Male
Middle Aged
Monitoring, Physiologic/methods
Pattern Recognition, Automated
Prognosis
Severity of Illness Index
Shock/diagnostic imaging
Signal Processing, Computer-Assisted
Time Factors

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10.1109/EMBC.2016.7591216

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Schmidt, Thomas ; Lassen, Annmarie Touborg ; Wiil, Uffe Kock. / Occurrence of elevated shock index in acute patients and development of a proportional shock index metric. 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016. Vol. 2016 IEEE Press, 2016. pp. 2411-2414 (Proceedings of the International Conference of the IEEE Engineering in Medicine and Biology Society).

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title = "Occurrence of elevated shock index in acute patients and development of a proportional shock index metric",

abstract = "Although shock index, as the ratio between heart rate and systolic blood pressure, is a well-recognized predictor for adverse outcomes, it is seldom integrated into clinical evaluation procedures as it requires on-the-fly evaluation of multiple terms. In this paper, we investigate the prevalence of elevated shock index in emergency department patients through an analysis of automatic heart rate and blood pressure readings from 809 admissions to an acute bedside ward at a large Danish hospital. The analysis is conducted by evaluating differences in terms of 30 day mortality. Our results indicate that elevated shock indexes are frequent in acute patients. This finding should spur a discussion on the utility of interventions relying on calculations of shock index based on spot measurements. As an alternative, we propose a novel proportional representation of shock index based on automated calculations of temporal shock index aspects.",

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year = "2016",

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series = "Proceedings of the International Conference of the IEEE Engineering in Medicine and Biology Society",

publisher = "IEEE Press",

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booktitle = "2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016",

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Schmidt, T , Lassen, AT & Wiil, UK 2016, Occurrence of elevated shock index in acute patients and development of a proportional shock index metric. in 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016. vol. 2016, 7591216, IEEE Press, Proceedings of the International Conference of the IEEE Engineering in Medicine and Biology Society, pp. 2411-2414, 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society , Orlando, United States, 16/08/2016. https://doi.org/10.1109/EMBC.2016.7591216

Occurrence of elevated shock index in acute patients and development of a proportional shock index metric. / Schmidt, Thomas ; Lassen, Annmarie Touborg ; Wiil, Uffe Kock.
2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016. Vol. 2016 IEEE Press, 2016. p. 2411-2414 7591216 (Proceedings of the International Conference of the IEEE Engineering in Medicine and Biology Society).

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Occurrence of elevated shock index in acute patients and development of a proportional shock index metric

AU - Schmidt, Thomas

AU - Lassen, Annmarie Touborg

AU - Wiil, Uffe Kock

N1 - Conference code: 38

PY - 2016/8

Y1 - 2016/8

N2 - Although shock index, as the ratio between heart rate and systolic blood pressure, is a well-recognized predictor for adverse outcomes, it is seldom integrated into clinical evaluation procedures as it requires on-the-fly evaluation of multiple terms. In this paper, we investigate the prevalence of elevated shock index in emergency department patients through an analysis of automatic heart rate and blood pressure readings from 809 admissions to an acute bedside ward at a large Danish hospital. The analysis is conducted by evaluating differences in terms of 30 day mortality. Our results indicate that elevated shock indexes are frequent in acute patients. This finding should spur a discussion on the utility of interventions relying on calculations of shock index based on spot measurements. As an alternative, we propose a novel proportional representation of shock index based on automated calculations of temporal shock index aspects.

AB - Although shock index, as the ratio between heart rate and systolic blood pressure, is a well-recognized predictor for adverse outcomes, it is seldom integrated into clinical evaluation procedures as it requires on-the-fly evaluation of multiple terms. In this paper, we investigate the prevalence of elevated shock index in emergency department patients through an analysis of automatic heart rate and blood pressure readings from 809 admissions to an acute bedside ward at a large Danish hospital. The analysis is conducted by evaluating differences in terms of 30 day mortality. Our results indicate that elevated shock indexes are frequent in acute patients. This finding should spur a discussion on the utility of interventions relying on calculations of shock index based on spot measurements. As an alternative, we propose a novel proportional representation of shock index based on automated calculations of temporal shock index aspects.

KW - Adult

KW - Aged

KW - Algorithms

KW - Blood Pressure Determination

KW - Blood Pressure/physiology

KW - Denmark

KW - Emergency Service, Hospital

KW - Female

KW - Heart Rate

KW - Humans

KW - Male

KW - Middle Aged

KW - Monitoring, Physiologic/methods

KW - Pattern Recognition, Automated

KW - Prognosis

KW - Severity of Illness Index

KW - Shock/diagnostic imaging

KW - Signal Processing, Computer-Assisted

KW - Time Factors

U2 - 10.1109/EMBC.2016.7591216

DO - 10.1109/EMBC.2016.7591216

M3 - Article in proceedings

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SN - 978-1-4577-0219-8

VL - 2016

T3 - Proceedings of the International Conference of the IEEE Engineering in Medicine and Biology Society

SP - 2411

EP - 2414

BT - 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016

PB - IEEE Press

T2 - 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

Y2 - 16 August 2016 through 20 August 2016

ER -

Schmidt T , Lassen AT , Wiil UK. Occurrence of elevated shock index in acute patients and development of a proportional shock index metric. In 2016 38th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2016. Vol. 2016. IEEE Press. 2016. p. 2411-2414. 7591216. (Proceedings of the International Conference of the IEEE Engineering in Medicine and Biology Society). doi: 10.1109/EMBC.2016.7591216

Occurrence of elevated shock index in acute patients and development of a proportional shock index metric

Abstract

Conference

Keywords

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