Acute scrotum and testicular blood flow

Choonpa Igaku ◽  
2014 ◽  
Vol 41 (6) ◽  
pp. 801-810
Author(s):  
Kimihiko MORIYA
Keyword(s):  
Blood Flow ◽  
Acute Scrotum ◽  
Testicular Blood Flow

scholarly journals The Diagnostic Accuracy of Testicular Torsion by Doctors on Duty Using Sonographic Evaluation with Color Doppler

2020 ◽  
Vol 14 (5) ◽  
pp. 155798832095300
Author(s):  
Akinori Nakayama ◽  
Hisamitsu Ide ◽  
Akiyoshi Osaka ◽  
Yasuyuki Inoue ◽  
Yukihito Shimomura ◽  
...  
Keyword(s):  
Blood Flow ◽  
Diagnostic Accuracy ◽  
Testicular Torsion ◽  
Color Doppler ◽  
Ultrasonic Transducer ◽  
Color Doppler Ultrasound ◽  
Medical Emergency ◽  
Acute Scrotum ◽  
Scrotal Pain ◽  
Testicular Blood Flow

As testicular torsion is a medical emergency, it requires quick diagnosis and treatment. Color Doppler ultrasound (CDUS) is useful for the diagnosis of testicular torsion. An accurate diagnosis can be difficult when CDUS indicates the preservation of blood flow in the testis. We examined the accuracy of testicular torsion diagnosis in patients with acute scrotum made by doctors on duty using CDUS. The subjects included 26 patients who visited our department between January 2016 and June 2018 presenting with acute scrotal pain. Patients were placed into one of three groups based on testicular blood flow evaluated by CDUS. The first group had no testicular blood flow, the second had diminished blood flow, and the last group had normal or increased blood flow. Patients were also diagnosed through scrotal exploration. Finally, patients were further divided into two groups identified by CDUS frequency utilized during diagnosis (12 MHz groups and ≤8 MHz groups), and the diagnostic accuracy of the two groups was compared. Characterizing torsion by either the absence of or diminished, testicular blood flow in the CDUS evaluation, the sensitivity and specificity of the CDUS performed by doctors on duty accounted for 69.2% and 53.8%, respectively. No improvement in diagnostic accuracy was evident despite the usage of a 12-MHz ultrasonic transducer. In this study, the sensitivity of CDUS performed by doctors on duty was about 70%, suggesting that scrotal exploration should be performed promptly even if testicular blood flow is observed and testicular torsion is suspected from medical history and body findings.

Testicular Blood Flow in Monkeys as Measured by Xenon Clearance and Radioactive Microspheres

1985 ◽  
Vol 14 (1) ◽  
pp. 49-55
Author(s):  
Richard M. Harrison ◽  
Ronald W. Lewis ◽  
James A. Roberts
Keyword(s):  
Blood Flow ◽  
Radioactive Microspheres ◽  
Testicular Blood Flow ◽  
Xenon Clearance

scholarly journals Testicular microvascular flow is altered in Klinefelter syndrome and predicts circulating testosterone

2021 ◽  
Author(s):  
Francesco Carlomagno ◽  
Carlotta Pozza ◽  
Marta Tenuta ◽  
Riccardo Pofi ◽  
Luigi Tarani ◽  
...  
Keyword(s):  
Blood Flow ◽  
Klinefelter Syndrome ◽  
Mean Transit Time ◽  
Venous Blood ◽  
Experimental Studies ◽  
Principal Component ◽  
Endocrine Function ◽  
Venous Blood Flow ◽  
Testicular Blood Flow

ABSTRACTContextExperimental studies on Klinefelter syndrome (KS) reported increased intratesticular testosterone (T) levels coexisting with reduced circulating levels. Abnormalities in testicular microcirculation have been claimed; however, no studies investigated in vivo testicular blood flow dynamics in humans with KS.ObjectiveTo analyze the testicular microcirculation in KS by contrast-enhanced ultrasonography (CEUS) and correlate vascular parameters with endocrine function.Design and SettingProspective study. University Settings.Patients51 testicular scans, 17 testes from 10 T-naïve subjects with KS and 34 testes from age-matched eugonadal men (CNT) who underwent CEUS for incidental nonpalpable testicular lesions.Main OutcomesCEUS kinetic parameters.ResultsCEUS revealed slower testicular perfusion kinetics in subjects with KS than in age-matched CNT. Specifically, the wash-in time (Tin, p = 0.008), mean transit time (MTT, p = 0.008), time to peak (TTP, p < 0.001), and washout time (Tout 50%, p = 0.008) were all prolonged. Faster testicular blood flow was associated with higher total T levels. Principal component analysis and multiple linear regression analyses confirmed the findings, and supported a role for reduced venous blood flow as independent predictor of total T levels.ConclusionsTesticular venous blood flow is altered in KS and independently predicts T peripheral release.

scholarly journals Arterial blood flow is the main source of testicular heat in bulls and higher ambient temperatures significantly increase testicular blood flow

2018 ◽  
Vol 116 ◽  
pp. 12-16 ◽  
Author(s):  
C.M.Q. Barros Adwell ◽  
L.F.C. Brito ◽  
E. Oba ◽  
R.E. Wilde ◽  
G. Rizzoto ◽  
...  
Keyword(s):  
Blood Flow ◽  
Arterial Blood Flow ◽  
Ambient Temperatures ◽  
Arterial Blood ◽  
Testicular Blood Flow

Exogenous oxytocin administration improves the testicular blood flow in rams

Andrologia ◽  
2021 ◽  
Author(s):  
Amr S. El‐Shalofy ◽  
Mohamed G. Hedia
Keyword(s):  
Blood Flow ◽  
Testicular Blood Flow
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