Related Experiment Video
Updated: May 20, 2026
03:14
Spinal Sonography for Ultrasound-Guided Lumbar Neuraxial Anesthesia
Published on: January 31, 2025
Labor analgesia for the obese parturient
1Department of Anesthesiology, Medical College of Wisconsin, Milwaukee, WI 53210, USA. libby@mcw.edu
Anesthesia and Analgesia
|July 17, 2012
Summary
Obese pregnant women face anesthesia challenges, including more health issues and difficult labor pain relief. This review explores these issues and offers solutions for better labor analgesia success.
Area of Science:
- Obstetrics and Gynecology
- Anesthesiology
- Public Health
Background:
- Obesity in pregnancy presents unique anesthetic challenges.
- Increased maternal comorbidities and labor complications are common in obese parturients.
- Neuraxial labor analgesia may be difficult to initiate and may fail in this population.
Purpose of the Study:
- To review the challenges faced by obstetric anesthesia providers in managing obese parturients.
- To discuss potential methods for improving the success rate of labor analgesia in this patient group.
Main Methods:
- Focused literature review.
- Synthesis of existing evidence on obesity, obstetric anesthesia, and labor analgesia.
Main Results:
- Obesity is associated with a higher incidence of maternal coexisting diseases.
- Labor complications are more frequent in obese parturients.
- Difficulties in initiating and maintaining neuraxial labor analgesia are prevalent.
Conclusions:
- Obstetric anesthesia for obese parturients requires careful consideration of associated risks.
- Strategies to optimize neuraxial labor analgesia should be implemented to improve patient outcomes.
- Further research may be needed to refine anesthetic techniques for this population.
Related Concept Videos
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...
01:26Endoscopic Procedures IV: Sigmoidoscopy and Laproscopy
Sigmoidoscopy and laparoscopy are distinct medical procedures that enable physicians to internally inspect different parts of the GI tract. Although they serve different purposes, each is essential for diagnosing and, in some cases, treating various medical conditions.
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
Sigmoidoscopy
Sigmoidoscopy is a diagnostic procedure that uses a flexible sigmoidoscope equipped with a light source and camera to examine the rectum and sigmoid colon. The procedure involves inserting the tube through the anus...
01:24Local Anesthetics: Differential Sensitivity of Nerve Fibers
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...
01:25Analgesia 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...
01:21Drug Dosing: Obese Patients
In the United States, obesity is a prominent concern. It is linked to heightened mortality rates due to increased occurrences of conditions such as hypertension, atherosclerosis, coronary artery disease, and diabetes compared to nonobese individuals. A patient is classified as obese if their actual body weight surpasses the ideal or desirable body weight by 20%, based on Metropolitan Life Insurance Company data. Ideal body weights consider average weights and heights for males and females...