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Related Concept Videos

Local Anesthetics: Clinical Application as Epidural Anesthesia01:29

Local Anesthetics: Clinical Application as Epidural Anesthesia

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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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Parenteral Anesthetics: Overview01:24

Parenteral Anesthetics: Overview

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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.
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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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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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Inhalational Anesthetics: Overview01:20

Inhalational Anesthetics: Overview

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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...
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Local Anesthetics: Differential Sensitivity of Nerve Fibers01:24

Local Anesthetics: Differential Sensitivity of Nerve Fibers

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Local anesthetics (LAs) block the sodium channels of nerve trunks, sensory nerve endings, and neuromuscular junctions. Although LAs can block all kinds of nerves, the sensitivity of nerve fibers differs according to nerve types and structures. LAs are known to block myelinated fibers faster than unmyelinated ones. Also, they block pain or sensory neurons at low concentrations without affecting the motor neurons involved in muscle contractions. This helps relieve labor pain without affecting the...
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Nonobstetric anesthesia during pregnancy.

Michael Heesen1, Markus Klimek

  • 1aDepartment of Anaesthesia, Kantonsspital Baden, Baden, Switzerland bDepartment of Anaesthesiology, Erasmus University Medical Center, Rotterdam, The Netherlands.

Current Opinion in Anaesthesiology
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Summary
This summary is machine-generated.

Recent guidelines offer improved management strategies for pregnant patients needing nonobstetric anesthesia, addressing challenges in airway management and surgical procedures to enhance maternal and fetal outcomes.

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Area of Science:

  • Anesthesiology
  • Obstetrics
  • Surgical Care

Background:

  • Nonobstetric anesthesia in pregnant patients presents unique challenges due to ethical limitations on randomized studies, resulting in low-level evidence.
  • Existing guidelines for managing pregnant patients undergoing nonobstetric surgery are scarce but crucial for improving care.

Purpose of the Study:

  • To review current guidelines for nonobstetric anesthesia in pregnant patients.
  • To cover guidelines from the Society of American Gastrointestinal Endoscopic Surgeons, difficult airway management in obstetrics, and pregnant trauma patient care.

Main Methods:

  • Review of recently published guidelines relevant to pregnant patients undergoing nonobstetric surgery.
  • Analysis of recommendations for airway management, laparoscopic procedures, and trauma care in pregnant individuals.

Main Results:

  • Algorithms for difficult airway management in pregnancy should be accessible in all relevant institutions.
  • Strict limitation of pneumoperitoneal pressure is recommended during laparoscopic surgery to prevent maternal hypercapnia and fetal acidosis.
  • Pregnant trauma patients require transfer to maternity facilities for non-life-threatening injuries; major trauma necessitates immediate stabilization and care.

Conclusions:

  • Published guidelines offer significant improvements for pregnant women undergoing nonobstetric surgery.
  • Despite potentially low evidence levels, these guidelines can enhance patient care and outcomes.