What does renal pelvis separation mean?

The renal pelvis is where the kidneys and ureters are connected, and where the ureters are connected. Dilatation and separation of the renal pelvis is caused by factors such as kidney stones and ureteral malformations that prevent normal urine discharge, so the renal pelvis becomes filled and enlarged. Renal pelvis separation can also occur when the fetus is holding in urine.

Generally speaking, if the separation of the renal pelvis does not exceed 10mm, it is within the normal range. If the fetus is not larger than 16mm at birth, there will be no problem. If it continues to increase, regular reexamination and treatment will be considered. Treatments you can refer to: (1) Intrauterine treatment: intrauterine puncture and catheter insertion to decompress hydronephrosis (2) Postpartum surgical treatment: pyeloplasty.

90% of renal pelvis separation occurs in male babies. Some babies solve this problem by soaking in urine when they are born. Some babies are caused by congenital urinary tract (poor urination, backlog) In the kidneys) problems can only be solved by surgery. Division of renal pelvis separation

The "separation" in "B-ultrasound shows renal pelvis separation 5mm" refers to the expansion of the renal pelvis.

Normal adult renal pelvic separation is basically within 10mm, but it is very uncertain for fetuses. Generally, fetuses with renal pelvis separation within 4 mm are considered normal. If the B-ultrasound of this patient shows a renal pelvis separation of 5 mm, it is usually monitored during pregnancy.

Renal pelvis separation can often be caused by lesions such as stones, tumors, blood clots or inflammatory strictures. In addition, there are also some congenital lesions such as ureteral webs, ureteroceles, urethral valves, etc. that can also be caused. Therefore, we cannot be careless about the phenomenon of renal pelvis separation and should conduct further observation. Diagnostic methods of renal pelvic separation

Ultrasound examination

Ultrasound is very sensitive to the display of renal pelvic separation in hydronephrosis. It can detect renal pelvic separation of more than 0.5CM, and the examination can also measure it. The thickness of the renal parenchyma was measured to understand the atrophy of the renal parenchyma caused by hydronephrosis. Ultrasound can detect hydronephrosis caused by tumors, stones, ureteroceles, prostatic hyperplasia, etc. in the urinary system, but for congenital ureteral strictures, inflammatory adhesions and other diseases, it is necessary to combine other imaging examinations to make a diagnosis.

Urography

Urography can well display the renal pelvis, and for tumors in the renal pelvis, the filling defect caused by the tumor can be clearly displayed during enhanced scanning, and it can also detect Metastatic lesions in regional lymph nodes and other locations. However, urography is relatively expensive, so if there are no particularly obvious clinical symptoms, we can consider it as normal physiological renal pelvic separation.

MRI

Magnetic resonance imaging (MPI) is an auxiliary examination method for masses in the renal pelvis, and is only suitable for those who are allergic to iodine contrast agents. Before doing urography, you must do an iodine allergy test, and it is best to do the test on an empty stomach to evacuate intestinal gas, otherwise it will cause errors in the test. Pay special attention to the benign and malignant masses separated by the renal pelvis to prevent renal pelvis cancer. Symptoms of renal pelvic separation

The symptoms of renal pelvic separation are less amniotic fluid, renal pelvic separation <=7mm is mild, and renal pelvic separation >=10mm is severe. However, you need to know whether the fetal bladder is full. If the bladder is full, you need to wait for the fetus to urinate and recheck. Whether renal pelvic separation gradually increases with increasing gestational age. Understand whether fetal hydronephrosis is progressive, the size of the kidney development, and whether the renal cortex is thinning.

If the renal cortex becomes thinner, it may have a certain impact on the fetus. On the contrary, it may not have much impact. It should be checked at birth. First, do a B-ultrasound, and if necessary, intravenous pyelography to clarify kidney function and the location of obstruction. The operation is difficult, but it has no impact on the child's life.

Renal pelvis separation usually occurs in male babies, but female babies generally do not suffer from renal pelvis separation. So at the same time, congratulations on your son. Treatment of renal pelvis separation

Knee-chest position: after 30 weeks of pregnancy (7 and a half months)

Method: Kneel on the bed with your legs shoulder-width apart, with your knees at a 90-degree angle Connect to the bed, press your chest as close to the bed as possible, and raise your buttocks as high as possible. When you get up in the morning and on an empty stomach before going to bed, try to do it for 15-20 minutes each according to the time you can bear.

This method uses the change of the fetal center of gravity and the transverse blocking force of the pregnant woman to increase the chance of the fetus turning to the cephalic position. A course of treatment is 7 days. If it is not successful, it can be done for another 7 days. The effective rate is 60%-70 %, a small number of pregnant women experience dizziness, nausea, and palpitation when doing knee-chest recumbent position and cannot persist, so they need to use other methods to correct the fetal position.

Serious attention: When the fetus is transposed, the umbilical cord may be wrapped around a certain part of the fetal body or even strangled around the neck, causing fetal hypoxia and abnormal fetal movement. Therefore, it must be performed under the guidance of a doctor. Check and monitor fetal heart rate every week, and record and compare abnormal fetal movements.

Laser irradiation or moxibustion to the Yin point: Use laser irradiation or moxibustion to the Yin point (0.3cm outside the toenail corner of the little toe), once/d, 15-20 minutes each time, 5- 7 days constitutes a course of treatment.

Others: Manual inversion, lateral decubitus and other methods. Adhering to sleeping on the left side is also very helpful for the baby's transfer.

If shoulder presentation is found in late pregnancy, the correction method is the same as for breech presentation. If it is ineffective, external inversion surgery can be tried to convert it to cephalic presentation, and the abdomen should be bandaged to fix the fetal head. If it fails, the baby should be hospitalized in advance to wait for delivery.

External rotation of the fetus: If the above methods are ineffective and there is no umbilical cord around the neck, external rotation of the fetus can be performed at 32 to 34 weeks of pregnancy. External rotation of the fetus has the risk of inducing premature rupture of membranes, placental abruption, umbilical cord entanglement and premature delivery, so caution should be used when applying it. Pregnant women lie on their backs, with their lower limbs flexed and slightly abducted to expose the abdominal wall, to check the fetal position and listen to the fetal heartbeat. First, the presenting part of the fetus is loosened, that is, the surgeon inserts both hands under the presenting part of the fetus and pulls it upward to loosen it, and then the fetus is transferred. The specific method is: hold both ends of the fetus with both hands, push the fetal head along the belly of the fetus with one hand, keep the fetal head flexed, and gently push it toward the pelvic entrance, push the fetal buttocks upward with the other hand, and coordinate with the pushing of the fetal head until Turned into cephalic presentation. Movements should be done gently and intermittently. If frequent and severe fetal movements or abnormal fetal heart rate are found during the operation, the rotation should be stopped and returned to the original fetal position, and close observation should be carried out until it returns to normal. Health Tips

The worst result of renal pelvic separation is hydronephrosis. The cure rate of surgery is very high. Some cases do not need treatment at all. The child can be cured as soon as he is born. Some friends must have asked, is there any way to cure renal pelvis separation in the stomach? The answer is no, because the baby is still in the embryo and there is no way to treat the baby. Finally, I would like to remind all expectant babies that renal pelvic separation is relatively common in boys and is not enough to cause panic. You can just follow the normal process to prepare for pregnancy. Because if you ask the doctor, the doctor will definitely not 100% guarantee that your fetus is normal, so the doctor usually gives a neutral answer.