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Related Concept Videos

Parenteral Anesthetics: Overview01:24

Parenteral Anesthetics: Overview

Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.
Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

Local Anesthetics: Clinical Application as Epidural Anesthesia

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...
Opioid Analgesics: Synthetic and Semisynthetic Opioids01:15

Opioid Analgesics: Synthetic and Semisynthetic Opioids

Synthetic and semisynthetic opioids are pivotal in pain management and tackling opioid addiction. Semisynthetic opioids, including morphinans (morphine derivatives), oxycodone, oxymorphone, hydrocodone, and hydromorphone, have improved pharmacokinetic profiles compared to morphine. Additionally, heroin and 6-MAM (6-Monoacetylmorphine) show better CNS penetration than morphine due to heightened lipid solubility. Hydromorphone, a potent opioid, undergoes hepatic metabolism to form the active...
Analgesia and Pain Management01:25

Analgesia and Pain Management

Pain is critical to various clinical pathologies, provoking an urgent need for effective management. Pain, whether acute or chronic, is a complex neurochemical process. Its alleviation depends on the type, with nonopioid analgesics effective for mild to moderate pain, such as musculoskeletal or inflammatory pain, while neuropathic pain responds best to anticonvulsants, tricyclic antidepressants, or serotonin/norepinephrine reuptake inhibitors. For severe acute or chronic pain, opioids may be...
General Anesthesia: Overview01:24

General Anesthesia: Overview

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...
Local Anesthetics: Clinical Application as Spinal Anesthesia01:11

Local Anesthetics: Clinical Application as Spinal Anesthesia

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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Related Experiment Video

Updated: Jun 28, 2026

An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)
14:56

An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)

Published on: January 27, 2010

[Dexamethasone for Perioperative Analgesia].

Sebastian Pantke, Andreas Leffler, Mirjam Eberhardt

    Anasthesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie : AINS
    |June 26, 2026
    PubMed
    Summary

    Dexamethasone can help manage postoperative pain and reduce opioid use when integrated into balanced analgesia strategies. While generally safe at standard doses, potential risks like transient hyperglycemia and specific contraindications require careful consideration.

    Related Experiment Videos

    Last Updated: Jun 28, 2026

    An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)
    14:56

    An Experimental Paradigm for the Prediction of Post-Operative Pain (PPOP)

    Published on: January 27, 2010

    Area of Science:

    • Pharmacology
    • Anesthesiology
    • Surgical Care

    Background:

    • Dexamethasone is a potent synthetic glucocorticoid without mineralocorticoid activity.
    • It is utilized perioperatively to prevent postoperative nausea and vomiting (PONV).
    • Its perceived benefits include reducing postoperative pain and opioid consumption.

    Purpose of the Study:

    • To review dexamethasone's administration, dosages, contraindications, adverse effects, and guideline recommendations.
    • To assess its role in postoperative pain management.
    • To evaluate its safety and efficacy in surgical contexts.

    Main Methods:

    • Literature review of dexamethasone's properties and clinical applications.
    • Analysis of common dosages (4-8 mg IV) and safety profiles.
    • Examination of current guideline recommendations for its use.

    Main Results:

    • Parenteral dexamethasone (e.g., dexamethasone-21-dihydrogen phosphate) offers significant anti-inflammatory effects.
    • Standard doses (4-8 mg IV) are generally safe, with no increased risk of wound infections or delayed healing, though transient hyperglycemia may occur.
    • Specific risks include tumor lysis syndrome in hematological neoplasms and HPA axis suppression.

    Conclusions:

    • Dexamethasone can be a valuable component of balanced analgesia strategies for postoperative pain.
    • Careful risk-benefit assessment is crucial for optimal patient outcomes.
    • Its use is increasingly supported by guidelines, including enhanced recovery after surgery (ERAS) protocols.