Intramuscular injections of BTX-A into the detrusor can provide rapid, well tolerated, clinically significant decreases in the signs and symptoms of urinary incontinence caused by neurogenic detrusor overactivity during a 24-week study period.

Vesicourethral dysfunction is very frequent in multiple sclerosis (MS) and has functional consequences for patients' quality of life and also an organic impact following complications of the neurogenic bladder on the upper urinary tract. While the functional impact and its management are well documented in the literature, the organic impact remains underestimated and there are no consensual practical guidelines for the screening and prevention of MS neurogenic bladder complications. The aim of this review of the literature, focused on identifying the risk factors of urinary tract complications in MS, is to put forward well informed considerations to help in the definition of practical guidelines for the follow-up of the neurogenic bladder in MS in order to improve its prevention and patient management. Four main risk factors have been identified for upper urinary tract damage: the duration of MS, the presence of an indwelling catheter, high-amplitude neurogenic detrusor contractions and permanent high detrusor pressure. Detrusor-sphincter dyssynergia, age over 50 and male sex may form three additional risk factors. Recommendations for long-term urological follow-up, taking into account these specific risks are constructed according to the procedures recommended by the French Health Authorities.

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