Effect of Varicocele on Testicular Artery Blood Flow in Men Color Doppler Investigation

Tarhan, Serdar; Gümüş, Bilal; Gunduz, Ilker; Ayyildiz, Veli; Göktan, Cihan

doi:10.1080/00365590310008677

Cited by 77 publications

(59 citation statements)

References 35 publications

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“…These TA's variations have been estimated in an incidence of 4.7-20% [5,22,24,40]. These aberrancies display significance from a clinical viewpoint since the TA's blood flow was found to be significantly decreased in men with varicocele [46]. Although many cases of double TAs have been documented in the literature [7,11,32,47], the bilateral presence of double TAs is more rarely detected [22,37].…”

Section: Introductionmentioning

confidence: 99%

Bilateral double testicular arteries: a case report and review of the literature. Potential embryological and surgical considerations

Paraskevas

Natsis²,

Nitsa³

et al. 2014

Folia Morphol

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Section: Introductionmentioning

confidence: 99%

Bilateral double testicular arteries: a case report and review of the literature. Potential embryological and surgical considerations

Paraskevas

Natsis²,

Nitsa³

et al. 2014

Folia Morphol

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“…Testicular tissue is very sensitive to disruption of its nutritive supply, which is primarily via the hematogenous route. Several investigations in humans [1][2][3][4] and rats [5,6] have demonstrated an association between testicular blood flow and sperm quality. In addition to local mediators, hormones appear to be involved in regulation of testicular blood flow [6].…”

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confidence: 99%

Testicular Blood Flow and Plasma Concentrations of Testosterone and Total Estrogen in the Stallion after the Administration of Human Chorionic Gonadotropin

et al. 2008

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Abstract. The goal of this study was to investigate for the first time a possible association between plasma concentrations of testosterone and total estrogen and testicular blood flow in the stallion. Correlations between these variables were calculated before and after administration of human chorionic gonadotropin (hCG). Eight mature warmblood stallions received 5,000 IU hCG intravenously, and four stallions received solvent only. Testicular blood flow in the left and right testicular arteries was assessed using colour Doppler sonography by measuring blood flow volume (BFV) and pulsatility index (PI) immediately before (time 0) and 1, 3, 6, 12, 24, 72, 120 and 168 h after hCG administration. EDTA blood samples were collected after each examination from a jugular vein to measure plasma testosterone and total estrogen concentrations. After treatment, the BFV increased and was elevated at 1 h and between 12 and 24 h. The profile of the PI was contrary to that of the BFV throughout the study period. Following hCG, there was a biphasic increase in testosterone concentration with maxima between 1 and 3 h and between 24 and 72 h, and there was a monophasic increase in the total estrogen concentration with a maximum between 6 and 24 h. At time 0, the total estrogen concentration correlated significantly with BFV (r=0.90; P<0.05) but the testosterone concentration did not (P>0.05). The testosterone and total estrogen concentrations did not correlate with PI (P>0.05). The total estrogen concentration, but not testosterone, correlated well with BFV after injection of hCG (P<0.05). The results of this study indicated that the testicular blood flow volume of the stallion may be regualted by estrogens, but additional studies are necessary to investigate whether there is a causal relationship.

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“…It is suggested that hormonal or neuronal factors might be important. Contrary to this, some studies reported that varicocele never altered testicular blood flow or caused a decrease in blood flow (18,19).…”

Section: Discussionmentioning

confidence: 82%

Comparison of response to treatment of unilateral and bilateral varicocelectomy

Öğreden¹,

Oğuz²,

Çırakoğlu³

et al. 2017

Turk J Med Sci

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Background/aim: We aimed to compare the results of unilateral and bilateral varicocele surgery. Materials and methods:In two referral hospitals, the data of 180 patients who were treated with unilateral and bilateral microscopic varicocelectomy were retrospectively analyzed. Sperm parameters and spontaneous pregnancy rates were compared in patients who underwent bilateral and unilateral microscopic varicocelectomy. Results:The mean age was 29.6 (17-46) years. While 82 patients underwent unilateral varicocelectomy (Group I), 98 patients underwent bilaterally varicocelectomy (Group II). Forty (48.8%) spontaneous pregnancies occurred in Group I and 59 (60.2%) in Group II. When we analyzed sperm parameters, the rate of increase in the number of sperm in spermiograms was 17% in Group I and 27.5% in Group II. The rate of increase in sperm mobility was 58.5% and 50% in Group I and II, respectively. The improvement rate in sperm morphology was 46.3% in Group I and 56.1% in Group II. There were no significant differences between all these parameters. Conclusion:In light of our results, although pregnancy rates seemed to be higher in patients who underwent bilateral varicocelectomy, these results were not statistically significant. Improvement rates in sperm parameters were similar between the patients who underwent unilateral and bilateral varicocelectomy.

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Effect of Varicocele on Testicular Artery Blood Flow in Men Color Doppler Investigation

Cited by 77 publications

References 35 publications

Bilateral double testicular arteries: a case report and review of the literature. Potential embryological and surgical considerations

Bilateral double testicular arteries: a case report and review of the literature. Potential embryological and surgical considerations

Testicular Blood Flow and Plasma Concentrations of Testosterone and Total Estrogen in the Stallion after the Administration of Human Chorionic Gonadotropin

Comparison of response to treatment of unilateral and bilateral varicocelectomy

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