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Related Concept Videos

General Anesthesia: Overview01:24

General Anesthesia: Overview

497
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...
497
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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Stages of General Anesthesia01:22

Stages of General Anesthesia

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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: Clinical Application as Spinal Anesthesia01:11

Local Anesthetics: Clinical Application as Spinal Anesthesia

1.2K
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

867
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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Updated: Dec 25, 2025

Author Spotlight: A Non-Intubated Video-Assisted Thoracoscopic Surgery with Multimodal Analgesia and Sevoflurane Inhalation Anesthesia
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Anesthesia for Nonobstetric Surgery in Pregnancy.

Mauricio Vasco Ramirez1,2, Catalina M Valencia G3,4

  • 1Universidad CES.

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Nonobstetric surgery during pregnancy requires careful anesthetic management. While common anesthetic agents are safe, surgery poses risks like miscarriage and prematurity, necessitating individualized care and planning.

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Area of Science:

  • Anesthesiology
  • Obstetrics
  • Surgical Management

Background:

  • 1-2% of pregnant women undergo nonobstetric surgery.
  • Physiologic changes in pregnancy impact anesthesia.
  • Anesthetic agents at clinical doses lack teratogenic effects.

Purpose of the Study:

  • To review anesthetic considerations for nonobstetric surgery in pregnancy.
  • To elucidate surgery-related risks such as miscarriage and prematurity.
  • To recommend best practices for perioperative care.

Main Methods:

  • Literature review of anesthetic practices and outcomes.
  • Analysis of physiological changes during pregnancy affecting anesthesia.
  • Evaluation of risks associated with surgical procedures and anesthesia.

Main Results:

  • Common anesthetic agents are not teratogenic in clinical doses.
  • Surgery-related risks of miscarriage and prematurity require further study.
  • Individualized intraoperative fetal monitoring and multidisciplinary planning are recommended.

Conclusions:

  • Anesthesia for nonobstetric surgery in pregnancy requires careful, individualized planning.
  • Emergency surgery should proceed immediately; elective procedures should be deferred.
  • Multidisciplinary collaboration is key for optimal maternal and fetal outcomes.