Renal angiography

Renal angiography has renal angiography and renal venography. Angiography is an interventional test in which a developer is injected into a blood vessel. Because X-rays are not permeable to the developer, angiography uses this property to diagnose vascular lesions by displaying images of the developer under X-rays. . There are severe cardiovascular insufficiency, coronary artery disease, poor general condition and contraindications to iodine allergy. Basic Information Specialist classification: urinary examination classification: X-ray Applicable gender: whether men and women apply fasting: not fasting Tips: Please relax when checking. Normal value Generally, the upper end of the spermatic vein can be displayed, and the position of the opening is clearly defined. Clinical significance Hypertension caused by renal artery stenosis, its angiographic indications: 1 young people with unexplained hypertension; 2 hypertension has a short onset time and rapid progress; 3 intravenous urography has significant differences in kidney size; 4 radionuclide kidney The figure shows that the kidney function of the two kidneys or one side is changed, the blood vessel segment is lowered or the excretion segment is delayed; 5 there is a vascular murmur around the navel. Renal venography, mainly for renal cancer, to understand whether there is a tumor thrombus in the renal vein; to understand the spermatic vein opening, to facilitate selective varicocele; to determine renal venous blood to determine renin, to determine the presence or absence of renal artery stenosis, estimation After the effect. Precautions Forbidden before examination: Prepare the bowel before preparing for angiography before angiography. A sedative was used 2 hours before surgery. Antibiotics were used to prevent infection 1 day before surgery. Both sides of the groin and perineum were prepared before surgery. An intravenous test was used for allergy testing. After the examination: postoperative treatment for 24 hours in bed, antibiotics for three days, intravenous injection of 5% glucose 1000 ml, to promote the discharge of contrast agents, to protect kidney function. Inspection process 1, take the supine position, first according to the urinary flat film. Conventional disinfection, toweling. 2 cm below the inguinal ligament, local anesthesia at the puncture site, and a small cut of the skin. The left hand touched the femoral artery pulsation, and the right hand held the cannula needle, and suddenly forced through the artery. 2, pull out the needle core, the needle sheath gradually recede, there is blood squirting, indicating the insertion of the artery. The guide wire is inserted into the femoral artery through the needle sheath, the needle sheath is pulled out, and the puncture point is pressed with the left hand to prevent bleeding. After expansion with the dilator, the perforating catheter is introduced by the guide wire. The guide wire was pulled out, and a syringe containing heparin saline (1000 ml of physiological saline plus 12,500 units of heparin) was taken and injected slowly. Or connect the tee joint and close it after injecting heparin. 3. Place the end of the catheter on the lower edge of the first lumbar vertebra under fluoroscopy, and connect the automatic high-pressure syringe to inject 40 ml of contrast medium at a rate of 15 ml per second. The film was taken when 10 ml was injected. At the beginning and end of the 1st second and the 2nd second, 1 film is taken in the 3rd and 4th seconds, and 1 film is taken in the 7th second. The renal vascular phase, renal parenchymal phase, and venous phase are shown. 4. Observe the wet sheet. If the development is not satisfactory, repeat it. At the end of the angiography, the catheter was pulled out, and partial compression was performed for 15 minutes to stop bleeding, and the pressure was bandaged and sent back to the ward. Not suitable for the crowd Inappropriate people: severe cardiovascular insufficiency, coronary artery disease, poor general condition and contraindications to iodine allergy. Adverse reactions and risks Nothing.