First, hydropathy (aeropathy) of the fallopian tube
Hydropathy (aeropathy) of the fallopian tube has a significant degree of blindness, and can only be determined by the operator and the patient's sense of feeling, which has a certain subjectivity, and this method cannot make a judgment on the function and morphology of the fallopian tube. In 1984, Richmen et al. were the first to apply ultrasonic diagnostic technology to check the patency of the fallopian tube. In recent years, the technique of hydropathy of the fallopian tube under ultrasonic examination has been widely used in clinical practice. Hydropathy of the fallopian tube under ultrasonic examination is hydropathy under ultrasonic monitoring, observing the bubble formation or sound image changes after the injection of fluid, providing a reliable judgment. Its advantages are:
1. Most scholars believe that ultrasonic diagnosis of fallopian tube patency has good sensitivity and specificity. Heikinen et al. reported that the total coincidence rate of ultrasonic examination of fallopian tube patency is close to that of hydropathy under laparoscopy, and can also make ultrasonic diagnosis of uterine adnexa. In this aspect, it is superior to the X-ray hysterosalpingography (X-HSG) under television透视.
2. The physiological saline used for hydropathy is safe, without allergic reactions or adverse reactions such as thrombosis, and does not harm the fallopian tube mucosa or uterus.
3. It can reduce the blindness of traditional hydropathy.
4. Compared with HSG, ultrasonic examination has the disadvantages of radiation damage and iodine allergy. Its disadvantages include: it is not as clear as laparoscopy for the pelvis, and it cannot clearly show the course and exact location of the fallopian tube. When there is adhesion in the fallopian tube, causing distortion and deformation, ultrasonic diagnosis is also very difficult. Sometimes, ultrasonic examination cannot observe the whole appearance of the fallopian tube on a single scanning plane, and cannot show the dynamic process, so it is not easy to obtain satisfactory images. However, in general, the technique of diagnosing the patency of the fallopian tube under ultrasonic examination is relatively accurate, safe, and easy to operate. This examination can be used as the first choice for the initial screening of fallopian tube patency, especially in infertility treatment centers with a high concentration of disease sources, which can meet the diagnostic needs of outpatients in large volume and quickly, and is worthy of widespread clinical application.
II. Uterine and Fallopian Tube Iodine Oil Contrast (HSG)
The operation of uterine and fallopian tube iodine oil contrast (HSG) is simple and can visualize the internal structure and shape of the uterus and fallopian tube under the screen. Its advantages are:
1. Rapid and accurate diagnosis, the cause of the uterus or fallopian tube can be determined during the operation, and the location is precise. Some studies have shown that HSG is better than laparoscopy in judging the site of obstruction.
2. It can be pressure increased appropriately under direct vision to separate mild uterine cavity adhesions.
3. Safe, because the operation is performed under direct vision, it can detect unexpected situations during the operation, such as iodinated oil entering the blood vessels or lymph, stop the injection in time to prevent oil embolism and cause adverse consequences. However, the contrast agent used (such as iodine oil) has a large adverse reaction, is easy to stimulate the mucosa and cause allergy, and the oily contrast agent is thick and difficult to pass through the narrow part of the fallopian tube, making it difficult to judge the site of obstruction.
III. Hysteroscopy Hysteroscopy
Hysteroscopy Hysteroscopy can directly visualize the uterine cavity shape and the opening condition of the fallopian tube, directly insert the tube fluid, avoid the disadvantages of blind fluid passage, overcome tubal spasm, and observe the unblocking situation at any time. Moreover, since hysteroscopy can insert the catheter into the interstitial part of the fallopian tube 4-5mm, it can have a mechanical unblocking and perfusion effect on the cornua and interstitial obstruction, and also has a separation effect on mild obstruction by directly applying pressure to the fallopian tube. Therefore, hysteroscopy is the most reliable method for diagnosing interstitial tubal obstruction.
IV. Laparoscopy
With the continuous progress of medical technology, laparoscopy has emerged, making the diagnosis of tubal infertility less traumatic and more precise. Laparoscopy can directly visualize pelvic organs, make comprehensive, accurate, and timely judgments on the nature and degree of lesions and the size of lesions: puncture and drug injection are all performed under direct vision, which is more accurate: under the mirror, fluid passage can observe the patency of the fallopian tube, and at the same time, it can also flush and unblock the fallopian tube, and can separate the adhesions at some fimbriae, avoiding the pain of laparotomy and also playing a positive therapeutic role, which is one of the best routine examination methods recommended by WHO for infertile women, but it requires anesthesia, has trauma, high technical equipment requirements, and has complications such as gas embolism, subcutaneous emphysema, and intraoperative bleeding.
V. Other
There are also methods such as combined treatment of B-ultrasound with uterine cavity and hysteroscopy with laparoscopy for tubal infertility. B-ultrasound guided hysteroscopy is a relatively new and effective method in the 1980s, especially for the diagnosis and treatment of proximal tubal obstruction, as well as the treatment of unobstructed but not smooth conditions. It can directly observe whether there are liquid shadow areas in the fallopian tube and whether there is fluid accumulation in the rectouterine凹陷 and its changes, and can also detect tubal stenosis in a timely manner to avoid the false impression of patency and exacerbate the concern of tubal stenosis. The combined diagnosis and treatment of tubal infertility with hysteroscopy and laparoscopy is a relatively advanced diagnostic and treatment method, with a high rate of recanalization of tubal obstruction, and needs to be further promoted and applied nationwide.