### Abstract

At some surgical suites, elective cases are only scheduled if they can be completed during regularly scheduled hours. At such a surgical suite, a surgeon may be scheduled to perform one or more cases in an operating room (OR), to be followed by another surgeon who will perform one or more cases. Scheduling a delay between the two surgeons' cases will improve the likelihood that the second surgeon's case(s) will start on time. We show that the mathematics of calculating a scheduled delay between the different surgeons' cases in the same OR on the same day is that of calculating an upper prediction bound for the duration of the second surgeon's case(s). We test an analytical expression for the upper prediction bound for the last one case of the day in an OR, and a Monte Carlo simulation method for the last two cases. We show that these 90% upper prediction bounds are at least as long as the actual durations for 90% ± 0.2% of single cases and 92% ± 0.6% of pairs of cases. We conclude that our methodology can be used to calculate an appropriate, and reasonably accurate, scheduled delay between two surgeons' cases in the same OR on the same day.

Original language | English (US) |
---|---|

Pages (from-to) | 943-946 |

Number of pages | 4 |

Journal | Anesthesia and Analgesia |

Volume | 92 |

Issue number | 4 |

State | Published - 2001 |

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### ASJC Scopus subject areas

- Anesthesiology and Pain Medicine

### Cite this

*Anesthesia and Analgesia*,

*92*(4), 943-946.

**Scheduling a delay between different surgeons' cases in the same operating room on the same day using upper prediction bounds for case durations.** / Dexter, Franklin; Traub, Rodney D.; Lebowitz, Philip W.

Research output: Contribution to journal › Article

*Anesthesia and Analgesia*, vol. 92, no. 4, pp. 943-946.

}

TY - JOUR

T1 - Scheduling a delay between different surgeons' cases in the same operating room on the same day using upper prediction bounds for case durations

AU - Dexter, Franklin

AU - Traub, Rodney D.

AU - Lebowitz, Philip W.

PY - 2001

Y1 - 2001

N2 - At some surgical suites, elective cases are only scheduled if they can be completed during regularly scheduled hours. At such a surgical suite, a surgeon may be scheduled to perform one or more cases in an operating room (OR), to be followed by another surgeon who will perform one or more cases. Scheduling a delay between the two surgeons' cases will improve the likelihood that the second surgeon's case(s) will start on time. We show that the mathematics of calculating a scheduled delay between the different surgeons' cases in the same OR on the same day is that of calculating an upper prediction bound for the duration of the second surgeon's case(s). We test an analytical expression for the upper prediction bound for the last one case of the day in an OR, and a Monte Carlo simulation method for the last two cases. We show that these 90% upper prediction bounds are at least as long as the actual durations for 90% ± 0.2% of single cases and 92% ± 0.6% of pairs of cases. We conclude that our methodology can be used to calculate an appropriate, and reasonably accurate, scheduled delay between two surgeons' cases in the same OR on the same day.

AB - At some surgical suites, elective cases are only scheduled if they can be completed during regularly scheduled hours. At such a surgical suite, a surgeon may be scheduled to perform one or more cases in an operating room (OR), to be followed by another surgeon who will perform one or more cases. Scheduling a delay between the two surgeons' cases will improve the likelihood that the second surgeon's case(s) will start on time. We show that the mathematics of calculating a scheduled delay between the different surgeons' cases in the same OR on the same day is that of calculating an upper prediction bound for the duration of the second surgeon's case(s). We test an analytical expression for the upper prediction bound for the last one case of the day in an OR, and a Monte Carlo simulation method for the last two cases. We show that these 90% upper prediction bounds are at least as long as the actual durations for 90% ± 0.2% of single cases and 92% ± 0.6% of pairs of cases. We conclude that our methodology can be used to calculate an appropriate, and reasonably accurate, scheduled delay between two surgeons' cases in the same OR on the same day.

UR - http://www.scopus.com/inward/record.url?scp=0035080239&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035080239&partnerID=8YFLogxK

M3 - Article

C2 - 11273931

AN - SCOPUS:0035080239

VL - 92

SP - 943

EP - 946

JO - Anesthesia and Analgesia

JF - Anesthesia and Analgesia

SN - 0003-2999

IS - 4

ER -