Can a kidney biopsy worsen kidney damage?

Although a kidney biopsy is an invasive test, But generally does not aggravate kidney damage. For example, percutaneous renal biopsy can only obtain more than 10 glomeruli each time, which will not affect the entire kidney function. However, if the indications are not well grasped, or the operation requirements are not followed, serious complications such as bleeding, infection, and even kidney laceration are caused, and it is inevitable that kidney damage will not be aggravated. The most serious is the laceration of the kidney. If the surgical suture fails to stop the bleeding, the kidney must be removed. Of course, this situation is extremely rare.

What should a kidney biopsy patient be aware of?

Kidney biopsy is a Invasive examination, bleeding is the most common, so after renal puncture, use sandbag cushion to press the skin at the waist of the needle eye, and at the same time tie the abdominal belt tightly to the puncture site, the purpose is to compress and stop the bleeding, and it has direct effect on the skin, subcutaneous and subrenal hematoma. effect.

The patient should be absolutely supine within 3-4 hours after puncture, and be able to turn over. Then stay in bed for 24 hours. Leave urine every 1 hour after surgery, observe the color of the urine with the naked eye, and send it for testing at the same time to observe the changes of red blood cells in the urine. Exercise lightly and slowly, and drink plenty of water to flush out blood clots. At the same time, medical staff should pay more attention to observe the patient’s blood pressure and pulse. If there is obvious hematuria or gross hematuria, bedside B-ultrasound should be done to observe whether there is an enlarged hematoma under the renal capsule. Relatively non-nephrotoxic antibiotics, such as penicillin, were routinely used within 3 days after surgery.

Generally speaking, microscopic hematuria occurs in almost 100% of patients after renal biopsy. After B-ultrasound or CT examination, the kidneys of patients with renal puncture almost all have perirenal hematomas, most of which are small hematomas, which can be cured on their own without sequelae. It can gradually disappear after bed rest, no need to panic.

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