Tulva AI for hospitals

Abstract

Do you feel like the emergency department of your hospital is more often crowded than not? Do you struggle with providing your patients with the followup care beds they require? You are not alone. In this article we discuss why crowding is not just a nuisance but a serious patient safety issue and tell how Tulva AI can help you and what it takes to get started.

Patient flow and crowding

Let us paint a picture of a simplified flow of bedoccupying in-hospital patients depicted in Figure 1. First, patients arrive in the ED at unexpected quantities and at unexpected intervals. Majority of the patients are discharged from the ED and rest are admitted to the wards. Out of the admitted patients a minority are directed to emergency surgery which later end up occupying a bed in a surgical ward. At the same time, elective surgery depends on the same inpatient beds the emergency department and emergency surgery depend upon. This is obviously a crude simplification and omits many of the potential and important pathways and components such as the ICU or downstream units such as intensive service housing but bear with us.

This is great when everything works as expected and the patient stream flows unobstructed. Unfortunately, more often than not, anomalies appear. These can be triggered by unexpectedly high number of arrivals at the ED, which becomes crowded and starts feeding patients to both emergency surgery and hospital wards. The results, as you might guess, is that the wards become crowded too, which causes an obstruction in all of it’s upstream dependencies. This exacerbates crowding in the ED and can result for example in cancellation of elective surgery.

Needless to say, the negative implications of this to the patients are evident. From strictly the ED’s point of view, crowding has been associated with increased mortality [1–8], increased operating cost [9] and delays in potentially life-saving treatments such as time to antibiotics [10] or thrombolysis [11]. At the same time, the cancellation of elective surgeries further exacerbates the already unsustainable growth of treatment waiting lists [12].

A simplified overview of patient flow of in-hospital patients, dependencies of different components of the care chain and implications of obstructed patient flow.

Saving lives by predictability

Now we have established that something has to be done. One obvious solution would be to ensure that there is always an excess amount of reserve capacity, so that the hospital never runs out of resources. The problem with this approach is that it is expensive. In Finland, the government has recently announced 500 million budget cuts in public health care [13] while in Europe populations has been projected to age up until year 2100 [14]. In this environment of financial scarcity and ever increasing demand for service, over resourcing is not a viable option.

This is where Tulva AI comes in. With predictions of the future service demand, a hospital can ensure that the supply for care matches the demand without the need for planned over-resourcing or unexpected periods of under-resourcing.

From theory to practice

We hope this conceptual overview was useful. If you want to hear more and move theory to practice, don’t hesitate to contact. Come and see the future with us!

References

[1]
Richardson DB. Increase in patient mortality at 10 days associated with emergency department overcrowding. Medical Journal of Australia 2006;184:213–6. https://doi.org/10.5694/j.1326-5377.2006.tb00204.x.

[2]
Guttmann A, Schull MJ, Vermeulen MJ, Stukel TA. Association between waiting times and short term mortality and hospital admission after departure from emergency department: Population based cohort study from Ontario, Canada. Bmj 2011;342. https://doi.org/10.1136/bmj.d2983.

[3]
Zhang Z, Bokhari F, Guo Y, Goyal H. Prolonged length of stay in the emergency department and increased risk of hospital mortality in patients with sepsis requiring ICU admission. Emergency Medicine Journal 2019;36:82–7. https://doi.org/10.1136/emermed-2018-208032.

[4]
Sun BC, Hsia RY, Weiss RE, Zingmond D, Liang LJ, Han W, et al. Effect of emergency department crowding on outcomes of admitted patients. Annals of Emergency Medicine 2013;61:605–611.e6. https://doi.org/10.1016/j.annemergmed.2012.10.026.

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Ugglas B, Lindmarker P, Ekelund U, Djarv T, Holzmann MJ. Emergency department crowding and mortality in 14 Swedish emergency departments, a cohort study leveraging the Swedish Emergency Registry (SVAR). PLoS ONE 2021;16:1–5. https://doi.org/10.1371/journal.pone.0247881.

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Jo S, Jin YH, Lee JB, Jeong T, Yoon J, Park B. Emergency department occupancy ratio is associated with increased early mortality. Journal of Emergency Medicine 2014;46:241–9. https://doi.org/10.1016/j.jemermed.2013.05.026.

[7]
Eidstø A, Ylä-Mattila J, Tuominen J, Huhtala H, Palomäki A, Koivistoinen T. Emergency department crowding increases 10-day mortality for non-critical patients: a retrospective observational study. Internal and Emergency Medicine 2023. https://doi.org/10.1007/s11739-023-03392-8.

[8]
Jones S, Moulton C, Swift S, Molyneux P, Black S, Mason N, et al. Association between delays to patient admission from the emergency department and all-cause 30-day mortality. Emergency Medicine Journal 2022:168–73. https://doi.org/10.1136/emermed-2021-211572.

[9]
Bayley MD, Schwartz JS, Shofer FS, Weiner M, Sites FD, Traber KB, et al. The financial burden of emergency department congestion and hospital crowding for chest pain patients awaiting admission. Annals of Emergency Medicine 2005;45:110–7. https://doi.org/10.1016/j.annemergmed.2004.09.010.

[10]
The Impact of Emergency Department Crowding Measures on Time to Antibiotics for Patients With Community-Acquired Pneumonia. Annals of Emergency Medicine 2007;50:510–6. https://doi.org/10.1016/j.annemergmed.2007.07.021.

[11]
Schull MJ, Morrison LJ, Vermeulen M, Redelmeier DA. Emergency department overcrowding and ambulance transport delays for patients with chest pain. CMAJ Canadian Medical Association Journal 2003;168:277–83. https://doi.org/10.1016/j.annemergmed.2003.12.016.

[12]
Otso Karhu TV. Tiina ikävalko kärsii kivuista, mutta leikkaus on vasta ensi vuonna – HUSin jonot uhkaavat kasvaa tuhansilla potilailla 2024.

[13]
Pakkala E. Lääkäriliitto vetoaa hallitukseen: Julkisen terveydenhuollon leikkaukset pitää perua 2024.

[14]
Eurostat. Population structure and ageing 2024.

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