[Significance of suprapubic puncture of the bladder as a diagnostic method].

In 650 cases for the purpose of a methodical comparison was examined urine got by paracentesis of the bladder and midstream urine. The most important results were: 1. Urine got by paracentesis of the bladder was infected in 30.9%, midstream urine in 51.7%. 2. Further 39.4% of the samples of midstream urine were poor in germs; in 2.3% these findings corresponded to an infection. 3. Only 69.7% of the kinds of germs and 38.8% of the numbers of germs were identical. 4. 28.4% of the samples of midstream urine with a significant bacteriuria and 60.6% of those ones in the region of suspicion showed sterility in the corresponding urine got by paracentesis of the bladder. 5. On the other hand 30.8% of the infected urine got by paracentesis of the bladder did not reveal a significant bacteriuria in the midstream urine. These results confirm the relevance of the quickly performable and complicationless suprapubic paracentesis of the bladder as diagnostic method. It should more be taken into consideration in clinic and outpatient department.