Resistance and pulsatility index increase in capsular branches of testicular artery: Indicator of impaired testicular microcirculation in varicocele?

Ünsal, Alparslan; Turgut, Ahmet Tuncay; Taşkın, Füsun; Koşar, Uğur; Karaman, Can Zafer

doi:10.1002/jcu.20331

Cited by 44 publications

(40 citation statements)

References 23 publications

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“…Unsal et al found a significant difference in the RI and PI of the CA in varicocele patients compared to a control group [18]. Keeping in mind that there was a small number of cases in their study, the authors pointed out that these indices may be an indicator of impaired testicular microcirculation.…”

Section: Discussionmentioning

confidence: 88%

“…The effects of varicocelectomy on semen parameters and on pregnancy rates are well studied, but relatively little is known about the changes in the microvasculature of the testicles after surgery [5][6][7][8][9]. A few years ago, different research groups evaluated the microhemodynamics of the testes after varicocelectomy and reported different results [17,18]. The changes in the microhemodynamics of the testes recently became a hot topic yet again, with some authors trying to find a correlation between CDUS parameters and surgical outcomes.…”

Section: Discussionmentioning

confidence: 99%

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Color Doppler ultrasound characteristics after subinguinal microscopic varicocelectomy

et al. 2017

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Aim: The present study evaluated the effect of differences in the peak systolic velocity (PSV) and resistive index (RI) in the testicular artery (TA), capsular artery (CA), and intratesticular artery (ITA) after microscopic subinguinal varicocelectomy (MSV) on postoperative pain and semen parameters. Patients and Methods: Scrotal color Doppler ultrasound (CDUS) measurements were made in 33 patients (age 18-31 years) prior to MSV and 3 and 6 months after MSV. Pain was recorded using a visual analog scale and sperm concentration was determined to analyze the predictive value of the CDUS parameters regarding surgical outcome. Results: A significant decrease in pain scores was observed in most patients at both follow-ups. The first postoperative CDUS revealed a significant increase in the TA-PSV (p<0.001) and a decrease in the TA-RI (p=0.002) and CARI (p=0.006). The second postoperative CDUS also revealed a significant increase in the TA-PSV and a decrease in the TA-RI, and the PSV in the ITA and CA and RI in the ITA and CA were significantly different from the values obtained pre-operatively and at the first follow-up. A negative correlation was found between the pain level and TA-PSV (r=-0.433, p=0.012), whereas sperm concentration positively correlated with both the TA-PSV and CA-PSV (r=0.534, p=0.001 and r=0.455, p=0.008, respectively).Conclusions: The PSV and RI are useful parameters for detecting changes in testicular microhemodynamics after MSV. In addition, the TA-PSV and CA-PSV can be used to predict improvements in pain and sperm concentration.

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Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Color Doppler ultrasound characteristics after subinguinal microscopic varicocelectomy

et al. 2017

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“…Prior studies [7,8] evaluating testicular microcirculation with color duplex ultrasonography, however, have shown no significant difference in testicular blood flow between patients with varicoceles and control groups. In a recent study using newer power Doppler ultrasonography, Unsal et al [9 ] has shown significant increase in resistance to blood flow as measured by the resistive index and pulsatility index of capsular branches in varicocele patients compared with controls. They concluded that resistive Purpose of review To review the role of varicocele repair in the treatment of male infertility.…”

Section: Testicular Blood Flowmentioning

confidence: 96%

Varicocele repair: does it still have a role in infertility treatment?

French

Desai

Agarwal

2008

Current Opinion in Obstetrics &Amp; Gynecology

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“…As a noninvasive method color/spectral Doppler ultrasound analysis was tried to provide valuable information to assess the hemodynamic changes and testicular microcirculation status in cases of clinical varicocele. The significant increase in resistance index (RI) and pulsatility index (PI) values of capsular arteries may be an indicator of impaired testicular microcirculation, but the cutoff values for this index has not been determined [2]. In this technique, relatively advanced stages of scrotal scarring can be detected when there is profound and substantial morphological deterioration in the scrotal parenchyma and decreased volume.…”

Section: Introductionmentioning

confidence: 99%

Testicular Sonographic Color Doppler Dynamic Tissue Perfusion Measurements in Adolescents with Varicocele

et al. 2019

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Aim: The aim of the study was an assessment of the effects of varicocele on testis parenchyma and microcirculation with the use of the dynamic tissue perfusion measurements. Methods: Color Doppler sonographic dynamic testis parenchyma perfusion measurements were performed with PixelFlux software in 30 children with left testis varicocele. The right testes without varicocele comprised the control group. Results: Testicular parenchymal perfusion in testes with varicocele was reduced when compared to the control testes. The differences were found in all measured perfusion parameters. Statistical significance was found in the case of mean velocity and resistance index parameters. According to the grade of varicocele, the perfusion was the most reduced in patients with grade III of varicocele. Conclusion: Testicular parenchymal perfusion decreases in patients with varicocele, mostly in higher grades of varicocele. In case of validation, the method can be used in determining the damage of the testis with varicocele and the need for surgery.

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Resistance and pulsatility index increase in capsular branches of testicular artery: Indicator of impaired testicular microcirculation in varicocele?

Cited by 44 publications

References 23 publications

Color Doppler ultrasound characteristics after subinguinal microscopic varicocelectomy

Color Doppler ultrasound characteristics after subinguinal microscopic varicocelectomy

Varicocele repair: does it still have a role in infertility treatment?

Testicular Sonographic Color Doppler Dynamic Tissue Perfusion Measurements in Adolescents with Varicocele

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