Related Experiment Video
Updated: Jul 19, 2026
14:40
Instrumentation of Near-term Fetal Sheep for Multivariate Chronic Non-anesthetized Recordings
Published on: October 25, 2015
Fetal surgery: general or regional anaesthesia?
W Gogarten1, H Van Aken, M A Marcus
1Klinik und Poliklinik für Anästhesiologie und operative Intensivmedizin, Westfälische Wilhelms-Universität, Münster, Germany. gogarten@anit.uni-muenster.de
Current Opinion in Anaesthesiology
|October 4, 2006
Summary
Fetal surgery for malformations requires general anesthesia to ensure fetal immobility and reduce stress, improving outcomes. Careful consideration of maternal risks versus fetal benefits is crucial for successful procedures.
Area of Science:
- Medical Science
- Fetal Surgery
- Anesthesiology
Background:
- Recent advancements in diagnosing and treating fetal malformations, including in-utero surgical repair, have been significant.
- Anesthesia for cesarean sections differs from fetal surgery, where high placental drug transfer is necessary for fetal anesthesia and immobility.
Purpose of the Study:
- To explore anesthetic considerations for fetal surgery.
- To discuss the importance of fetal stress response attenuation and maternal-fetal risk-benefit analysis in fetal interventions.
Main Methods:
- Review of anesthetic strategies for fetal surgery.
- Analysis of factors affecting fetal outcomes, including placental drug transfer and uterine function.
Main Results:
- General anesthesia is favored for fetal surgery due to the need for high placental drug transfer for adequate fetal anesthesia and immobility.
- Minimizing fetal stress response may improve surgical outcomes, though fetal pain perception remains debated.
- Maintaining uterine blood flow and relaxation is critical to prevent premature labor, which limits surgical benefits.
Conclusions:
- Anesthetic management for fetal surgery prioritizes fetal well-being through adequate anesthesia and immobility.
- Physicians must carefully balance maternal risks against fetal benefits, ensuring maternal safety is paramount.
- Further research into fetal pain perception and optimal anesthetic techniques is warranted.
Related Concept Videos
01:24General 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...
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
01:29Local 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...
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...
01:11Local 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...
01:16Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia
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...
One of the advantages of...
01:24Parenteral 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.
01:22Stages 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...