How to quickly expel the contrast agent

From a clinical perspective, there are two types of contrast agents commonly used in medicine, one is iodine oil contrast agent, the other is iodine water contrast agent. During the examination, part of the contrast agent will be excreted, and part will remain in the body and then slowly excreted with urine and will not be absorbed by the body. Generally, all the feces can be excreted from the body within 2-3 days, and you can prepare for pregnancy after one month.

1. How to quickly discharge the contrast agent?

The contrast agent is not absorbed but excreted from the body. The contrast agent will be excreted from the body. The contrast agent injected into the fallopian tube is very small and can be excreted from the body through the peristalsis of the fallopian tube. In addition, a small amount enters the body and will be excreted within 72 hours. Due to the different contrast agents of the hysterosalpingography, the time limit for pregnancy after hysterosalpingography will also be different. Some contrast agents allow pregnancy every other month, while others may require waiting three months to six months before pregnancy.

2. Hysterosalpingography process

1. The patient takes the lithotomy position, routinely disinfects the vulva and vagina, lays a sterile towel, and checks the position and size of the uterus.

2. Use a speculum to dilate the vagina and fully expose the cervix. Disinfect the cervix and vaginal vault again. Use a cervical forceps to clamp the anterior lip of the cervix and explore the uterine cavity.

3. Fill the intrauterine catheter with 40% iodized oil, expel the air, insert it into the cervical canal along the direction of the uterine cavity, and slowly inject the iodized oil. Observe the flow of contrast agent through the fallopian tube and uterine cavity under X-ray fluoroscopy and take films. Take a pelvic plain film after 24 hours to observe whether there is free iodized oil in the abdominal cavity. If diatrizoate solution is used for contrast imaging, the film should be taken immediately after the injection, and a second film should be taken 10-20 minutes later to observe the flow of diatrizoate solution into the pelvic cavity.

4. If the uterine horns are rounded and the fallopian tubes are not visible after the injection of iodized oil, it is considered that the fallopian tubes are spasmodic. The patient can keep the tubes in situ, inject 0.5 mg of atropine intramuscularly, or acupuncture the Hegu and Guannei points, and then perform fluoroscopy and filming after 20 minutes; or stop the operation and use antispasmodics before the next filming.

3. Side effects of fallopian tube contrast agents

1. Hysterosalpingography is a procedure in which contrast agents are injected into the uterus and fallopian tubes and monitored under the fluoroscopy of an X-ray machine. This will cause the body to be exposed to some x-rays. However, the damage caused by transient x-ray exposure is mild and reversible. When undergoing routine x-ray examinations, be sure to pay attention to protection, but there is no need to be afraid.

2. X-ray hysterosalpingography uses iodine contrast agent, 40% iodine has high density and good imaging effect, but it is very irritating and can cause severe abdominal pain after surgery. It sometimes causes chemical peritonitis. The examination time is long, the absorption is slow, and it is easy to cause foreign body reaction and form granuloma. If a large amount enters the vein, there is a risk of oil embolism. Aqueous contrast agent can avoid this situation.

Hysterosalpingography: It is a test method used to check whether the fallopian tubes of women are open. Hysterosalpingography is one of the most widely used methods in clinical practice.

Hysterosalpingography: X-ray hysterosalpingography is a method of injecting contrast agent into the uterine cavity and fallopian tubes through a catheter, using an X-ray diagnostic device to perform X-ray fluoroscopy and filming. Based on the development of the contrast agent in the fallopian tubes and pelvic cavity, it is used to understand whether the fallopian tubes are unobstructed, the site of obstruction, and the morphology of the uterine cavity.

Hysterosalpingography is a minimally invasive examination. Under the operation of an experienced physician and with the use of a digital X-ray machine, it can make a correct diagnosis of fallopian tube obstruction with an accuracy rate of 98%. It also has a certain therapeutic effect and is the most commonly used examination method to understand whether the fallopian tubes are unobstructed, the degree of patency, and the specific location of the blockage. In many aspects, it is irreplaceable by ultrasound, CT, MRI, hysteroscopy, laparoscopy, fallopian tube endoscopy, etc.