Amjadi Mohsen, Madaen Seyed Kazem, Pour-Moazen Hamid
Department of Urology, Imam Khomeini Medical Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Urol J. 2006 Winter;3(1):49-53.
Bladder emptying in crouching position is a conventional way in many eastern countries. Our aim was to evaluate uroflowmetry parameters as an index of obstruction severity in standing and crouching positions and comparison of them in patients with bladder outlet obstruction symptoms.
Uroflowmetry in standing and crouching positions was done in 83 patients with bladder outlet obstruction symptoms due to benign prostatic hyperplasia (BPH). The patients were 50 years old or older and their maximum flow rate in standing position was less than 15 mL/s. The maximum flow rate, average flow rate, maximum flow time, and postvoid residual urine volume were measured and recorded. The results in standing and crouching positions were compared.
The mean maximum flow rate and mean average flow rate in crouching position increased 86% and 51%, respectively (P < .001; P = .012), while mean maximum flow time and postvoid residual volume decreased 40% and 46%, respectively (P < .001; P < .001). These changes were also significant in patients with maximum flow rates of less than 10 mL/s and 10 mL/s to 15 mL/s in standing position, except for the maximum flow time in the latter group.
A more complete emptying of bladder in crouching position in patients with BPH can be attributed to the increased bladder pressure due to a good transmission of intra-abdominal pressure and a complete and coordinated relaxation of pelvic floor muscles. This position can help improve patients' symptoms.
在许多东方国家，蹲位排尿是一种传统方式。我们的目的是评估尿流率参数，作为站立位和蹲位梗阻严重程度的指标，并比较膀胱出口梗阻症状患者在这两种体位下的尿流率参数。
对83例因良性前列腺增生（BPH）导致膀胱出口梗阻症状的患者进行了站立位和蹲位尿流率测定。患者年龄在50岁及以上，站立位最大尿流率小于15 mL/s。测量并记录最大尿流率、平均尿流率、最大尿流时间和排尿后残余尿量。比较站立位和蹲位的结果。
蹲位时平均最大尿流率和平均平均尿流率分别增加了86%和51%（P <.001；P =.012），而平均最大尿流时间和排尿后残余尿量分别减少了40%和46%（P <.001；P <.001）。对于站立位最大尿流率小于10 mL/s和10 mL/s至15 mL/s的患者，这些变化也很显著，但后一组的最大尿流时间除外。
BPH患者蹲位时膀胱排空更完全，这可归因于腹腔内压力良好传递导致膀胱压力增加以及盆底肌肉完全且协调的松弛。这种体位有助于改善患者症状。
