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Related Concept Videos

Stages of General Anesthesia01:22

Stages of General Anesthesia

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...
General Anesthesia: Overview01:24

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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.
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Inhalational Anesthetics: Overview01:20

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Inhalation anesthetics are drugs that induce general anesthesia upon inhalation. They work by increasing the sensitivity of GABAA receptors or inhibiting NMDA receptors, leading to a decrease in central nervous system activity. The depth of anesthesia can be rapidly adjusted by changing the concentration of the inhaled gas. Some common examples of inhalational anesthetics include volatile liquids like isoflurane, desflurane, sevoflurane and gases like xenon and nitrous oxide. Isoflurane, a...
Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia01:16

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Intravenous regional anesthesia or the Bier block technique is used to anesthetize a specific limb or extremity. It uses exsanguinated or blood-drained vessels to transport local anesthetics or LAs to the peripheral nerve trunks. Lidocaine without vasoconstrictors like epinephrine is most commonly used for this technique. Other drugs used are prilocaine, ropivacaine, and chloroprocaine. Bupivacaine is not recommended for this technique due to its high cardiac toxicity.
One of the advantages of...

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Halogenated Agent Delivery in Porcine Model of Acute Respiratory Distress Syndrome via an Intensive Care Unit Type Device
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The intermittent sequential compression device on the lower extremities attenuates the decrease in regional cerebral

Hyun Jeong Kwak1, Dongchul Lee, Youn-Woo Lee

  • 1Department of Anesthesiology and Pain Medicine, Gil Medical Center, Gachon University of Medicine and Science, Seoul, South Korea.

Journal of Neurosurgical Anesthesiology
|July 13, 2010
PubMed
Summary

Intermittent sequential compression devices (SCD) effectively prevent drops in cerebral oxygen saturation during sitting procedures. This simple method reduces the risk of serious complications like cerebral ischemia in patients.

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Area of Science:

  • Anesthesiology
  • Neurosurgery
  • Vascular Surgery

Background:

  • The sitting position poses risks including cerebral ischemia and venous air embolism.
  • Regional cerebral oxygen saturation (rSO2) monitoring is crucial in patients undergoing procedures in the sitting position.

Purpose of the Study:

  • To investigate the impact of intermittent sequential compression devices (SCD) on regional cerebral oxygen saturation (rSO2) changes.
  • To assess the efficacy of SCD in mitigating cerebral desaturation during the sitting position.

Main Methods:

  • A randomized controlled trial involving 66 healthy patients undergoing shoulder arthroscopy in the sitting position.
  • Patients were assigned to either a control group or an SCD group.
  • Hemodynamic variables and rSO2 were measured at baseline and at intervals after assuming the sitting position.

Main Results:

  • The incidence of hypotension was significantly lower in the SCD group compared to the control group.
  • Regional cerebral oxygen saturation (rSO2) remained significantly higher in the SCD group at later time points.
  • A significant decrease in rSO2 from baseline was observed only in the control group.

Conclusions:

  • Sequential compression devices (SCD) applied to the lower extremities are effective in preventing decreases in cerebral oxygen saturation.
  • SCD application is a simple and effective method to improve cerebral oxygenation during the sitting position under sevoflurane anesthesia.