T. Takada et al., INFRARED THERMOMETRY FOR RAPID, NONINVASIVE DETECTION OF REFLUX OF SPERMATIC VEIN IN VARICOCELE, The Journal of urology, 156(5), 1996, pp. 1652-1654
Purpose: We evaluated infrared thermometry for measurement of reflux o
f blood via the internal spermatic vein. Materials and Methods: The ch
ange in scrotal temperature in patients with varicoceles and controls
with different positions was measured with an infrared thermometer. Re
sults: Scrotal neck temperature in the patients increased during Valsa
lva's maneuver with upright position (mean plus or minus standard devi
ation 34.62 +/- 1.20 to 36.05 +/- 1.42C), while no statistically signi
ficant increase occurred in the controls (32.91 +/- 0.92 to 33.42 +/-
1.15C). Two weeks after high ligation of the internal spermatic vein t
he scrotal temperature in the patients decreased to the same level (0.
59 +/- 0.84C) as in the controls, Using this method 2 subclinical vari
coceles were also found on the right side in patients with a left vari
cocele. Conclusions: Infrared thermometry is noninvasive, rapid and si
mple for documenting varicoceles, including subclinical disease.