The relevant factors associated with the acute urinary retention complicating benign prostatic hyperplasia

Objective To investigate the relevant factors associated with the complicating acute urinary retention(AUR) of benign prostatic hyperplasia(BPH).Methods A retrospective study was made on 112 BPH patients divided into an AUR group A(n= 43) and a non-AUR group B(n= 69).Comparisons covered the patients′ age,international prostate symptom score(IPSS),peak urinary flow rate(Qmax),prostate volume(PV),transition zone volume(TZV),transition zone index(TZI),prostate-specific antigen(PSA),pathologic grade of prostatitis,type of hyperplasia and occurrence of prostate infarction.Results The TZV,TZI and PSA were significantly higher in group A than in group B(P0.01).The pathologic grade of prostatitis and the type of hyperplasia were more advanced in group A.No significant differences in age,IPSS,PV,Qmax and occurrence of prostate infarction were found in between.Conclusion TZV,TZI,PSA are the factors predicting the occurrence of AUR in BPH patients;the higher pathologic grade of prostatitis and higher percentage of epithelial cells in prostate may be the risk factors for AUR.