Female Voiding Dysfunction: What are We Trying to Treat? Recent Advance in Management 권동득 Department of urology, Chonnam National University Hwasun Hospital What’s the female voiding dysfuction? Female voiding dysfunction is complex in nature poorly understood, lacks standard definition no consensus on diagnostic criteria difficult to treat Majority of women – neurologically intact but cause is idiopathic It’s common & affect QoL but paucity of literature on its management CHONNAM NATIONAL UNIVERSITY HOSPITAL Female voiding dysfunction No agreed classification specific to female voiding dysfunction ICS definition of voiding dysfunction “A complex of symptoms represented by abnormalities of sensation related to voiding” Focusing on bladder and urethral activity during voding Bladder: detrusor underactivity, acontractile bladder Urethra: bladder outlet obstruction, intermittent involuntary contraction of periurethral muscle during voiding, detrusor sphinter dyssynergia, non-relaxing urethral sphincter obstruction Abrams et al. Neurourol Urodyn 2002;21:119-167 CHONNAM NATIONAL UNIVERSITY HOSPITAL Prevalence of LUTS and associated bother in women Coyne KS et al. BJUI 2009;104:352-360 CHONNAM NATIONAL UNIVERSITY HOSPITAL Overlap of storage, voiding and postmicturition symptoms EpiLUTS survey 15861 women 75% women reported at least one LUTS Sexton CC et al. BJUI 2009;103:3:S12-S23 CHONNAM NATIONAL UNIVERSITY HOSPITAL Overlap of storage, voiding and postmicturition symptoms Sexton CC et al. BJUI 2009;103:3:S12-S23 CHONNAM NATIONAL UNIVERSITY HOSPITAL Classification of voiding difficulties & retention Monga AK. Textbook of urogynecology 2001, pp. 855-863. Condition Symptoms Urodynamic data Asymptomatic VD Frequency UTI Reduced flow, elevateated, normal or reduced voiding pressure with or without residual urine Symptomatic VD Reduced stream, incomplete emptying, straining, frequency, UTI Peak flow <15ml/s, elevated voiding pressure with or without residual urine Acute retention Painful or painless Residual urine Chronic retention Reduced sensation, poor stream, incomplete emptying, straining, frequency, nocturia, incontinence, UTI Flow<15ml/s Low or elevated voiding pressure, residual urine with or without upper tract dilatation CHONNAM NATIONAL UNIVERSITY HOSPITAL Etiological factors Idiopathic Most common cause, may be consequence of ageing Urethral cause BOO intrinsic or extrinsic, Neurogenic bladder by detrusor sphincter dyssynergia, Intrinsic urethral stricture, urethral diverticulum, genital prolapse, Fowler’s syndrome, Hinman syndrome Bladder cause Overdistension, hypocontractile or acontractile bladder, detrusor myopathy Iatrogenic cause Anti-incontinence surgery (TVT, TOP), Pelvic surgery, Genital trauma, childbirth Neurogenic cause DSD, non-relaxing urethral sphincter obstruction CHONNAM NATIONAL UNIVERSITY HOSPITAL Etiological factors Pharmacologic cause Anticholinergics and ganglion blocking agents, adrenergic agonist (duloxetine), anti-psychotics, anti-parkinsonian, antidepressants, opiate, some decongestants & antihistamine Inflammatory cause Infective, allergic or chemical reaction of urogenital tissues, herpetic lesions Endocrine cause DM, hypothyroidism Psychological cause Depression, rape, schizophrenia CHONNAM NATIONAL UNIVERSITY HOSPITAL Management of female voiding dysfunction Often impossible to reverse or cure the underlying cause The aim of treatment Compensating and relieving symptoms Minimizing long-term complication Prevention is infinitively better than cure Training medical staff & nursing staff to anticipate & rapid treat suspected urinary retention in patients at risk - pelvic surgery, spinal anesthesia, childbirth - suboptimal voiding (SUI or extensive prolapse surgery) ; preop teach CIC & full informed consensus Protocols : UFM & RU CHONNAM NATIONAL UNIVERSITY HOSPITAL Management of female voiding dysfunction Risk factors for postoperative voiding dysfunction Age over 65 years Additional surgical procedure Type of surgical procedure Postop cystitis Preop acontactile bladder Excessive elevation of bladder neck Menopause Abnormal preop voiding studies Preop enterocele or vault prolapse CHONNAM NATIONAL UNIVERSITY HOSPITAL Intermitternt self catheterization Primary treatment for chronic retention Improve quality of life & good long-term results Less or no overflow incontinence Reduce urinary tract infection 50% asymptomatic pyuria Antibiotic prophylaxis for symptoms of cystitis Unable or unwilling to self catheterization Suprapubic rather than urethral catheter Silicon or Teflon based catheter (change every 8wks) Flip flow valve catheter, free drain at night only CHONNAM NATIONAL UNIVERSITY HOSPITAL Pharmacotherapy Often ineffective and high incidence of side-effects Discontinuing causative medication Tamsulosin (α1A/ α1D adrenergic antagonist) improve Sx, Qmax, PVR no RCT with small sample size Diazepam Relieving psychogenic & immediate postop VD (anxiety & pain) Variable effectiveness CHONNAM NATIONAL UNIVERSITY HOSPITAL Α blockers in female functional BOO Tamsulosin 0.45mg for 1month in 18 women with functional BOO Diagnosed with urodynamic study (high Pdet, low Qmax, slient EMG) Pischedda A et al. Urol Int 2005; 74:256-61. Fig. 1. Q max values at baseline (dark column) and 30 days after tamsulosin treatment (open column) in the responder group. Fig. 2. PVR at baseline (dark column) and 30 days after tamsulosin treatment (open column) in the responder group. CHONNAM NATIONAL Fig. 3. Maximum detrusor pressure at baseline (dark column) and 30 days after tamsulosin treatment (open column) in the responder group. UNIVERSITY HOSPITAL Pharmacotherapy Medical treatment of voiding dysfunction Target organ Group of drug Examples Stimulation of the bladder Muscarinic agent Carbachol SC, Bethanechol Cl PO Anticholinesterase Distigmine bromide IM α-adrenergic blokers Tamsulosin, Propranolol Prostaglandins PGE2, PGF2a intravesical α-adrenergic blocking agents Phenobenzamine, Prazosin Mixed α1 and α2 adrenergic drugs Isoxsuprine hydrocholoride α2 stimulants Terbutaline sulphate Muscle relaxants Dantrolene, Baclofen, Diazepam Relaxation of the urethral sphincter mechanism CHONNAM NATIONAL UNIVERSITY HOSPITAL Pharmacotherapy Oral contraceptives for ovarian supression Topical nitric oxide Anticholinergics combined with CIC Botulinum toxin injection to relax urethral sphincter Improvement after injection of botulinum toxin A injection (80-100U) (13women, neurogenic VD) Effective reduction in urethral resistanc in detrusor overactivity with voiding dysfunction (50U) Sucessful in urinary retension after pubovaginal sling No evidence of effective in Fowler’s syndrome Phelan M J of Urol 2005;165:1107-10 Kuo HC Urology 203;61:550-54 Smith CP et al Int Urogynecol J 2002;13:185-6 CHONNAM NATIONAL UNIVERSITY HOSPITAL Surgical treatment Genital prolapse Urethral stricture Bladder neck incision and resection VD after antiincontinence operation Hegar’s dilation or Otis urethrotomy Trauma, scarring-> deterioration of VD or SUI Bladder neck obstruction Correction of prolapse No consensus on the management Loosening and cutting of the tape Urethrolysis Idiopathic VD – urethrotomy or bladder neck incision ; no appropriate & advisable CHONNAM Nguyen JK. Obs & Gyn Survey 202;57:468-75 NATIONAL UNIVERSITY HOSPITAL Alternative therapies : Biofeedback & bladder retraining Dysfunctional voiding Learned maladaptive behavior Effective bladder training Primary bladder neck obstruction Hinman syndrome No side effects Lido LM et al. Biofeedback self regul 1983;8:243-53. CHONNAM NATIONAL UNIVERSITY HOSPITAL Neurostimulation Electrical stimulation vaginal, anal, transdermal device Sacral neuromodulation No exact mechanism Enable micturition reflex, modulate afferent signaling or central effect Improved voiding in non-obstructed retention, 20 patients, 15months f/u ; 18 out of 20 patients able to void after OP (Shaker & Hassouna et al) Bilateral stimulation, 33 patients, not superior to unilateral stimulation, - more effective in only partially response to temporary device Shaker HS and Hassouna M. J of Urol 1998;159:1476-8. Abosief S et al. BJU 2002;90:662-5. Scheepens WA et al. J Urol 2002;168:2046-50. CHONNAM NATIONAL UNIVERSITY HOSPITAL Posterior tibial nerve stimulation (PTNS) Posterial tibial nerve contains L5-S3 fibers same level as parasympathetic innervation to bladder Effective to treat female VD Idiopathic non-obstuctive VD, (29 patients) Needle stimulation above medial malleolus - 30 min, every 12 weeks - 50% reduction of catheter volume in 41% patients - After 12 sesseion, increase PdetQmax, reduction of RU, but same bladder capacity & none to free of CIC Vandoninck V et al. Neurourol Urodyn 2004;23:246-51 CHONNAM NATIONAL UNIVERSITY HOSPITAL Conclusion Prevention is better than cure Etiology and management of voiding difficulty in women is different from those in men Multidisciplinary approach for successful management Limited role and evidence of neuromodulation, surgery, pharmacotherapy Further study is needed in these areas CHONNAM NATIONAL UNIVERSITY HOSPITAL LUTS Storage symptoms irritative symptoms of OAB Voiding symptoms slow stream, spraying, intermittency, hesitancy, strainning, terminal dribble Post-micturitional symptoms feeling of incomplete emptying and postmicturition dribbling CHONNAM NATIONAL UNIVERSITY HOSPITAL Irritative symptoms commonly associate with VD α -blockers in women suffering from obstructed urine flow Non specific symptoms of bladder outlet obstruction, irritative or obstructive Anticholinergics alone nor the combination treatment have not been studied in female VD Combination with α-adrenergic blocker with anticholinergics investigated in male Pischedda A et al. Urol Int 2005; 74:256-61. Kessler TM et al. J Urol 2006; 176:1487-92. Athanasopoulos A et al. Int Urogynecol J Pelvic Floor Dysfunct 2009; 20:217-22. CHONNAM NATIONAL UNIVERSITY HOSPITAL