Background: Hemodynamic disturbances during lumbar spine surgeries have proven to be exceptionally rare, with only seven published cases demonstrating instances where intraoperative dural manipulation coincided with bradycardia, hypotension, and/or asystole.
Observations: The authors present the case of a 39-year-old male with a history of chronic low-back pain and leg weakness. Imaging demonstrated a disc herniation at L5-S1, resulting in impingement of the left S1 traversing nerve root. The patient agreed to surgery. The preoperative workup was unremarkable. While retracting the S1 nerve root, transient asystole occurred when the S1 nerve root was manipulated, causing the patient's heart rate to drop from 51 to 0 bpm. Manipulating the nerve root once again triggered a similar event, and upon cessation of the surgical stimulus, the patient's heart rate spontaneously returned to baseline. Other potential causes of these hemodynamic perturbations were excluded.
Lessons: As in other reported cases, each cardiovascular disturbance corresponded with either direct or indirect dural manipulation. Given the limited number of lumbar spinal cases reported to have undergone hemodynamic perturbances via dural manipulation, this case report provides evidence for the likelihood of a spinal-cardiac reflex between the cardiovascular system and the spinal dura mater. https://thejns.org/doi/10.3171/CASE24158.
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| http://dx.doi.org/10.3171/CASE24158 | DOI Listing |
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