Karl C, Gerlach R, Hannappel J, Lehnen H
Urol Int. 1986;41(4):270-5. doi: 10.1159/000281216.
This investigation shows that the reproducibility of uroflow measurements is limited. For their evaluation, anamnesis and the measured results have to be taken into account equally. We found correspondence of both parameters in about 50% only. One single measurement cannot provide precise information, as psychogenic, social, and other factors influence the measurement. In our study 3 subjects had their micturitions registered over a period of 2 months. We found an increase of the maximum flow with increasing bladder volume. The maximum bladder volume was reached in only four micturitions. Normal values range at about 25% of the maximum bladder volume. Analyzing the micturitions in regard to the time of day, we found maximum flow rates in the morning hours. Under clinical conditions the altered surroundings lead to a measured result which is psychogenically influenced and can only be balanced after repeated measurements. The curves of all 3 patients were equal and inconspicuous. In cases of infravesical obstruction, surgical success could be documented by comparing the pre- and postoperative uroflows. In all cases of neurogenic bladder disorders and unclear findings, uroflow measurements are, however, not sufficient, and diagnosis is accomplished by a complete urodynamic examination. In spite of certain restrictions, uroflowmetry yields a high level of information, besides being a simple, at any time reproducible, and noninvasive procedure. Due to its low costs, it should be the primary step in diagnostics in the clinic as well as for practitioners.
这项调查表明，尿流测量的可重复性是有限的。在对其进行评估时，必须同等考虑病史和测量结果。我们发现只有约50%的情况下这两个参数是相符的。单次测量无法提供精确信息，因为心理、社会和其他因素会影响测量结果。在我们的研究中，3名受试者的排尿情况被记录了2个月。我们发现最大尿流率随膀胱容量增加而升高。仅在4次排尿中达到了最大膀胱容量。正常数值约为最大膀胱容量的25%。分析一天中不同时间的排尿情况，我们发现早晨时段的最大尿流率最高。在临床情况下，环境改变会导致受心理因素影响的测量结果，只有经过多次测量才能得到平衡。所有3名患者的曲线都是相同且不明显的。对于膀胱颈以下梗阻的病例，通过比较术前和术后的尿流情况可以证明手术的成功。然而，在所有神经源性膀胱疾病和检查结果不明确的病例中，尿流测量是不够的，诊断需通过完整的尿动力学检查来完成。尽管存在一定限制，但尿流率测定除了是一种简单、随时可重复且无创的检查方法外，还能提供大量信息。由于其成本低，它应该是临床诊断以及从业者诊断的首要步骤。
