Sartori, Andrea M; Kiss, Bernhard; Mordasini, Livio; Pollo, Claudio; Schüpbach, Michael; Burkhard, Fiona C; Schwab, Martin E; Kaelin-Lang, Alain; Kessler, Thomas M (2022). Effects of Deep Brain Stimulation on Lower Urinary Tract Function in Neurological Patients. European urology focus, 8(6), pp. 1775-1782. Elsevier 10.1016/j.euf.2022.05.004
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BACKGROUND
Deep brain stimulation (DBS) has clear beneficial effects on motor signs in movement disorders, but much less is known about its impact on lower urinary tract (LUT) function.
OBJECTIVE
To evaluate the effects of DBS on LUT function in patients affected by movement disorders.
DESIGN, SETTING, AND PARTICIPANTS
We prospectively enrolled 58 neurological patients affected by movement disorders, who were planned to receive DBS.
INTERVENTION
DBS in the globus pallidus internus, ventral intermediate nucleus of the thalamus, or subthalamic nucleus.
OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS
Subjective symptom questionnaires (International Prostate Symptom Score) and objective urodynamic studies were carried out before implantation of the DBS leads and several months after surgery. After DBS surgery, urodynamic investigations were performed with DBS ON as well as DBS OFF.
RESULTS AND LIMITATIONS
We enrolled patients suffering from Parkinson's disease (n = 39), dystonia (n = 11), essential tremor (n = 5), Holmes tremor (n = 2), and multiple sclerosis with tremor (n = 1). DBS of the globus pallidus internus resulted in worsening of LUT symptoms in 25% (four of 16) of the cases. DBS of the subthalamic nucleus in patients with Parkinson's disease led to normalization of LUT function in almost 20% (six of 31 patients), while a deterioration was seen in only one (3%) patient. DBS of the ventral intermediate nucleus of the thalamus improved LUT function in two (18%) and deteriorated it in one (9%) patient with tremor.
CONCLUSIONS
DBS effects on LUT varied with stimulation location, highly warranting patient counseling prior to DBS surgery. However, more well-designed, large-volume studies are needed to confirm our findings.
PATIENT SUMMARY
In this report, we looked at outcomes of deep brain stimulation on lower urinary tract function. We found that outcomes varied with stimulation location, concluding that counseling of patients about the effects on lower urinary tract function is highly recommended prior to surgery.
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