A New Parameter in Decision Making for Transurethral Electroresection of Benign Prostate Hyperplasia

Otani, Takeshi; Hayashi, Yoshiki; Kishino, Tatsuki; Fujimoto, Kiyohide; Hirao, Yoshihiko; Ozono, Seiichiro; Okajima, Eigoro

doi:10.1159/000019845

Cited by 14 publications

(14 citation statements)

References 17 publications

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“…Only TZI indicates a significant difference in groups (0.55 vs. 0.44, p = 0.003), composed by outcome efficacy. The same results, in respect of TZI value to treatment efficacy groups, were presented by Otani et al [6] . The monovariate analysis shows that, with high sensitivity and specificity, TZI is most important parameter for predicting postoperative TURP results (OR 7.38).…”

Section: Discussionsupporting

confidence: 83%

“…The influence of other parameters (TZV, PSA, TZI) on BPH treatment results had been investigated and published; these results are promising [5,6] . Better TZV than TPV elimination during resection (87.8 vs. 49.6%) permits an assumption that TZV has the greater responsibility for obstruction and that the TZV value could correlate more closely with other symptoms, and even outcomes, than would TPV.…”

Section: Discussionmentioning

confidence: 99%

“…Such parameters could be the transition zone volume (TZV), transition zone index (TZI) or prostate-specific antigen (PSA). In recent years, studies on the importance of these parameters on clinical outcomes have been published [5,6] . However, the numbers of patients involved in those studies are too low; therefore, firm conclusions cannot be drawn from them.…”

Section: Introductionmentioning

confidence: 99%

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Transition Zone Index and Bothersomeness of Voiding Symptoms as Predictors of Early Unfavorable Outcomes after Transurethral Resection of Prostate

Milonas¹,

Šaferis²,

Jievaltas³

2008

Urol Int

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Introduction: The objective of this study was to establish the influence of preoperative parameters on unfavorable outcomes after transurethral resection of the prostate. Patients and Methods: In a prospective study, 90 patients underwent transurethral resection of the prostate. The standardized protocol was used to investigate parameters, preoperatively and after 6 months. The baseline values were analyzed with respect to the probability of predicting the effectiveness of the outcome. Results: All preoperative parameters changed significantly, from 55.1 to 116% (p < 0.001). Treatment was effective for 85.6% of the patients, and the outcomes were unfavorable for 14.4%. The monovariate analysis detected the transition zone index (cut-off 0.48, p = 0.002, OR 7.48) as independent predictor of ineffective outcome. Logistic regression analysis found two the most important parameters – transition zone index (OR 30.26, p = 0.002) and bothersomeness of voiding symptoms (OR 20.7, p = 0.008) for unfavorable outcomes. Conclusions: The parameters that are traditionally used cannot predict unfavorable outcomes. The transition zone index and bothersomeness of voiding symptoms are most important parameters for predicting an unfavorable outcome after TURP.

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transition Zone Index and Bothersomeness of Voiding Symptoms as Predictors of Early Unfavorable Outcomes after Transurethral Resection of Prostate

Milonas¹,

Šaferis²,

Jievaltas³

2008

Urol Int

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“…Two‐dimensional transrectal ultrasound (TRUS) has been used for the estimation of prostate size in the evaluation of benign prostatic hyperplasia (BPH) before transurethral resection of the prostate (TURP). It has been reported that the transition zone volume measured by 2‐D TRUS correlated with the treatment efficacy of TURP and was a useful parameter in preoperative decision‐making 5 . Another report showed that the transition zone volume measured by 2‐D TRUS correlated well with the resected weight for patients with BPH treated by TURP 6 .…”

Section: Introductionmentioning

confidence: 98%

Three‐dimensional ultrasonography in evaluation of benign prostatic hyperplasia

et al. 2004

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Background : The clinical application of volume estimation by 3-D ultrasound has recently gained much attention. However, there have been no reports evaluating the prostate volume by 3-D transrectal ultrasound (TRUS) before transurethral resection of the prostate (TURP). The purpose of the present study was to evaluate the value of 3-D TRUS for prediction of prostate morphology and resected weight before TURP and to investigate whether 3-D TRUS is a more useful examination than 2D TRUS in patients with benign prostatic hyperplasia (BPH).Methods : Transurethral resection of the prostate was performed in 23 patients with BPH. We evaluated the prostate morphology and measured both the volumes of the whole prostate and the transition zone using 2-D and 3-D TRUS, respectively. The actual resected weight was recorded and compared with the volume of the whole prostate and that of the transition zone measured by 2D and 3-D TRUS.Results : The volume of the transition zone measured by 3-D TRUS correlated most strongly with the resected weight ( r = 0.84). A large median lobe was seen in three patients in whom the transition zone volume measured by 2-D TRUS was considerably larger than the resected weight. However, overestimation in the three patients decreased by the use of 3-D TRUS. Conclusions : It was concluded that 3-D TRUS was equal or superior to 2-D TRUS in prediction of the resected weight and 3-D TRUS offers better information as a diagnostic tool before TURP.Key words benign prostatic hyperplasia, three-dimensional ultrasound, transrectal ultrasound, transurethral resection of the prostate, volume calculation.

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“…The difference between TZV and resected tissue weight was only 2.53 (11%) (24). Another study confirms that TUR-P is strongly correlated with TZV and TZI, although the same study indicates that prostate volume is ineffective in the prediction of efficiency of TUR-P procedure (7). All the studies listed above underline the correlation between TZV and weight of the resected tissue.…”

Section: Discussionmentioning

confidence: 90%

Role of Transition Zone Index in the Prediction of Clinical Benign Prostatic Hyperplasia

Kirkali¹

2016

jus

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What's known on the subject? and What does the study add? ÖZ ObjectiveThe objective of this study was to determine the role of the transition zone (TZ) index (TZI) in the prediction of clinical benign prostatic hyperplasia (BPH) in patients who underwent transurethral prostatectomy (TUR-P) and to analyze the correlation between the amount of resected tissue and TZ volume (TZV). Materials and MethodsTwenty-six male clinical BPH patients with obstructive complaints and 17 male benign prostate enlargement (BPE) patients without any complaints were included in the study. Both the groups were over the age of 50. Clinical BPH patients underwent complete TUR-P. Statistical analysis was done with SPSS. Sensitivity, specificity, positive and negative predictive values of TZI-as a method of assessing clinical BPH-were measured.

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A New Parameter in Decision Making for Transurethral Electroresection of Benign Prostate Hyperplasia

Cited by 14 publications

References 17 publications

Transition Zone Index and Bothersomeness of Voiding Symptoms as Predictors of Early Unfavorable Outcomes after Transurethral Resection of Prostate

Transition Zone Index and Bothersomeness of Voiding Symptoms as Predictors of Early Unfavorable Outcomes after Transurethral Resection of Prostate

Three‐dimensional ultrasonography in evaluation of benign prostatic hyperplasia

Role of Transition Zone Index in the Prediction of Clinical Benign Prostatic Hyperplasia

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