Related Experiment Video
Updated: Aug 3, 2026

Deep Neuromuscular Blockade Leads to a Larger Intraabdominal Volume During Laparoscopy
Published on: June 25, 2013
Horner's Syndrome and Upper Extremity Weakness After Quadratus Lumborum Block for Postcesarean Section Analgesia: A
Michael Anderson1, Vasili Chernishof1, Mark C Norris2
1From the Department of Anesthesiology, Boston University Medical Center, Boston, Massachusetts.
Abstract:
A healthy, 34-year-old primigravida at 41 weeks gestational age presented for cesarean delivery due to a category 2 fetal heart tracing remote from delivery. After completion of the surgery under epidural anesthesia, bilateral quadratus lumborum blocks were performed for postoperative pain. Approximately 4 hours later, the patient developed left-sided arm weakness, left miosis, and ptosis. These symptoms resolved within 24 hours. Considering the time course of her symptoms, we believe that the quadratus lumborum block was the likely culprit.
More Related Videos
Related Concept Videos
Abdominal Regions and Quadrants
The simpler quadrants approach, which is more commonly used in medicine, subdivides the cavity with one horizontal and one vertical line that intersects at the patient's umbilicus (navel). The four quadrants...
Local Anesthetics: Clinical Application as Spinal Anesthesia
Local Anesthetics: Clinical Application as Intravenous Regional Anesthesia
One of the advantages of...
Herniated Intervertebral Disc l: Introduction

