Published online Sep 16, 2021. doi: 10.12998/wjcc.v9.i26.7917
Peer-review started: April 16, 2021
First decision: May 10, 2021
Revised: May 28, 2021
Accepted: July 26, 2021
Article in press: July 26, 2021
Published online: September 16, 2021
Processing time: 147 Days and 1 Hours
Spinal anesthesia is commonly used for various surgeries. While many complications occur after induction of spinal anesthesia, involuntary movement is an extremely rare complication.
Herein, we report the case of a 54-year-old healthy male patient who experienced involuntary movements after intrathecal injection of local anesthetics. This patient had undergone metal implant removal surgery in both the lower extremities; 7 h after intrathecal hyperbaric bupivacaine administration, involuntary raising of the left leg began to occur every 2 min. When the movement disorder appeared, the patient was conscious and cooperative. No other specific symptoms were noted in the physical examination conducted immediately after the involuntary leg raising started; moreover, the patient's motor and sensory assessments were normal. The symptom gradually subsided. Twelve hours after the symptom first occurred, its frequency decreased to approximately once every three hours. Two days postoperatively, the symptoms had completely disappeared without intervention.
Anesthesiologists should be aware that movement disorders can occur after spinal anesthesia and be able to identify the cause, such as electrolyte imbalance or epilepsy, since immediate action may be required for treatment. Furthermore, it is crucial to know that involuntary movement that develop following spinal anesthesia is mostly self-limiting and may not require additional costly examinations.
Core Tip: Various movement disorders can occur after induction of neuraxial anesthesia, and anesthesiologists should be aware of these symptoms. Upon their appearance, diseases requiring emergent treatment should be identified first. Once these are excluded, the spinal myoclonus that develops following neuraxial blockade is usually self-limiting; therefore, additional costly tests may not be necessary.