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Related Concept Videos

General Anesthesia: Overview01:24

General Anesthesia: Overview

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Anesthesia is a medical procedure that uses drugs for CNS suppression to enable painless surgeries and procedures. The selection of anesthetics is influenced by their pharmacokinetic properties, side effects, and patient characteristics. Various types of anesthesia include general, local, regional, spinal, and inhalational.
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
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Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
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Various sedation levels offer significant advantages in facilitating procedural interventions for patients undergoing medical or invasive surgical procedures. These levels span from anxiolysis to general anesthesia, providing a spectrum of sedative effects to cater to specific patient needs. Anxiolysis reduces anxiety and is achieved through minimal sedation, enabling patients to remain awake and responsive while feeling more at ease during the procedure. This level can benefit minor...
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Local Anesthetics: Pharmacokinetics01:13

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The potency and duration of action of local anesthetics (LAs) are determined by their pharmacokinetics. Pharmacokinetics describes how LAs are absorbed, distributed, metabolized, and eliminated from the body. When administered to the vascular tissues, LAs are quickly absorbed and enter the systemic circulation, reducing their localized effects. Adding vasoconstrictors such as epinephrine to LAs reduces their absorption into the systemic circulation, making them clinically effective. The...
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Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

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Spinal anesthetics are given during lower abdomen and limb surgeries to block sensory and motor neurons. They are administered in the mid to low lumbar regions, primarily acting on the cauda equina's nerve roots. The blockade level depends on the local anesthetic (LA) concentration. Usually, low LA concentrations are sufficient to block sensory fibers, while only high LA concentrations block motor fibers. Other factors like injection volume and speed, the patient's posture, and the drug...
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Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

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Epidural anesthetics are administered in the fat-filled epidural space, the outermost part of the spinal canal. This technique is commonly employed for pain management and anesthesia during lower abdomen and pelvis surgeries or labor and delivery.
Since epidural anesthetics can be infused through an epidural catheter, all types of drugs, including short-acting ones, can be administered. Chloroprocaine and lidocaine are examples of short and long-duration anesthetics, respectively. Bupivacaine...
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Updated: Nov 3, 2025

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Scheduling of Anaesthesia Operations in Operating Rooms.

Pi-Yu Hsu1, Shao-Hua Lo1, Hsin-Gin Hwang1

  • 1Institute of Information Management, National Yang Ming Chiao Tung University, Taipei 100-116, Taiwan.

Healthcare (Basel, Switzerland)
|June 2, 2021
PubMed
Summary
This summary is machine-generated.

This study addresses surgical operating room scheduling with limited anesthesiologists. We developed approximation methods to minimize the overall completion time (makespan) for surgical operations, achieving quality solutions efficiently.

Keywords:
anaesthesia schedulingheuristic algorithminteger programmingmakespan

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Area of Science:

  • Operations Research
  • Healthcare Management
  • Computer Science

Background:

  • Surgical scheduling is complex, often constrained by limited resources like anesthesiologists.
  • Minimizing the makespan (total completion time) is crucial for efficient operating room utilization.
  • Existing exact methods for this problem can be computationally intractable.

Purpose of the Study:

  • To develop efficient methods for scheduling surgical operations across multiple operating rooms.
  • To minimize the makespan of surgical schedules considering anesthesiologist availability.
  • To provide a computationally feasible approach for complex operating room scheduling problems.

Main Methods:

  • Abstracting the problem into a theoretical server scheduling problem.
  • Formulating an integer programming model for the scheduling problem.
  • Developing two approximation algorithms and employing steepest descent search for solution improvement.

Main Results:

  • The proposed approximation methods effectively address the complexity of surgical scheduling.
  • Quality solutions for minimizing makespan were achieved within a few seconds.
  • The steepest descent search enhanced the performance of the approximation methods.

Conclusions:

  • The developed approximation methods offer a practical solution for operating room scheduling.
  • Efficient scheduling can be achieved even with resource constraints like limited anesthesiologists.
  • This approach provides a valuable tool for improving healthcare operational efficiency.