Huber P R, Wisard M, Schmid H P
Hormonlaboratorien, Frauenspital, Université de Bâle, Suisse.
Ann Urol (Paris). 1994;28(4):235-7.
In patients with a normal digital rectal examination and serum PSA levels under 18.4 ng/ml Yang (i.e. under 10.0 ng/ml Hybritech or under 14.4 ng.ml with the Basel Cantonal Hospital assay), twice yearly then yearly follow-up examinations are sufficient. More closely spaced examinations and a transrectal ultrasound scan are appropriate in patients with abnormalities upon digital rectal examination, especially when serum PSA levels are consistently elevated.
对于直肠指检正常且血清前列腺特异性抗原（PSA）水平低于18.4 ng/ml（即低于Hybritech检测法的10.0 ng/ml或巴塞尔州立医院检测法的14.4 ng/ml）的患者，每年进行两次随访检查，之后每年检查一次就足够了。对于直肠指检有异常的患者，尤其是血清PSA水平持续升高的患者，应进行间隔更短的检查并进行经直肠超声扫描。
