What Does Water Supply Mean?
Tubal irrigation is a common treatment method for tubal blockage, which involves injecting methylene blue solution or physiological saline into the uterine cavity through the cervix. The liquid then flows from the uterine cavity into the fallopian tube. The patency of the fallopian tube is determined based on the resistance encountered during injection and the presence of liquid reflux. The pressure of the liquid is used to restore patency to the obstructed fallopian tube. However, as tubal irrigation involves injecting liquid into the uterine cavity through a catheter, the volume and surface area of the uterine cavity are significantly larger than the cross-sectional area of the catheter and fallopian tube lumen. According to fluid dynamics principles, pressure is equal to force divided by the area over which the force is applied. Therefore, the pressure exerted on the fallopian tube during tubal irrigation is very limited, resulting in limited therapeutic effects. Currently, this method has been completely replaced by hysterosalpingography in hospitals with the necessary conditions.
(1) Various primary or secondary infertility cases.
(2) Prevention of adhesion formation and assessment of surgical outcomes after infertility surgery.
(3) Relief of mild adhesions in the fallopian tube.
(4) Therapeutic irrigation: Administered 3-7 days after menstruation, with 6 treatments constituting one course. Monthly courses are recommended. The medication consists of 400,000 units of penicillin and 0.5-1 gram of streptomycin (both require prior allergy testing). Additionally, 150 units of hyaluronidase are dissolved in 10-20 ml of physiological saline. After three courses of treatment, further radiographic examination is performed to assess the treatment outcome.
