ABSTRACT

In order to understand the physiological measurements that play a part in urodynamics, it is helpful rst to consider the function of the healthy urinary tract. e urinary system has two distinct functions: the storage of urine for typically a period of hours

20.17.3 Bubbles 522 20.17.4 Rectal Activity 523

20.18 Complete Urodynamics System 523 20.18.1 Load Cell and Preamplier 523 20.18.2 Volume and Flow Circuitry 523 20.18.3 Pressure Circuitry 526

20.19 Adjuncts to Conventional Urodynamics 526 20.19.1 In Vitro Testing 526

20.19.1.1 Urine Dipstick Testing 526 20.19.1.2 Prostate-Specic Antigen 526

20.19.2 Simple Devices for Home Use 526 20.19.2.1 Frequency-Volume Chart 526 20.19.2.2 Leakage Diaper 526

20.19.3 Ultrasound 527 20.19.4 Ambulatory Urodynamics 527 20.19.5 Electromyography 529 20.19.6 Video Urodynamics (Cystography) 530 20.19.7 Cystoscopy 530 20.19.8 Urethral Pressure Prolometry 530

20.20 e Future 531 20.20.1 Home Uroowmetry 532 20.20.2 Noninvasive Measurement of Bladder Contractility 532 20.20.3 Indwelling Sensors 532

20.21 Equipment Suppliers 533 Acknowledgments 533 References 533 Bibliography 534

and the ecient and complete passage or voiding of urine at a socially convenient time. Symptoms of disrupted storage or voiding go under the generic term of lower urinary tract symptoms (LUTS). Many of the symptoms are common to a range of disease processes. Nevertheless, the literature makes a clear distinction between the symptoms and disease processes aecting storage and those that aect voiding.