7mm kidney stone can be treated with medication and surgical lithotripsy, which should be considered according to the location, composition, comorbidities and basic condition of the patient.
1. Medication lithotripsy: it is suitable for stones with a diameter of 0.5~1.0cm, of which <0.6cm is the most suitable.
2. Extracorporeal shock wave lithotripsy: for CT value less than 1000HU renal stones less than 20mm can obtain better therapeutic effect, the literature reports that the stone clearance rate can reach 91% ~ 93%, if there is no combination of distal urinary tract obstruction, it should be the first choice of treatment.
3. Flexible ureteral nephrolithotripsy: it is suitable for stones <30mm located in the lower calyx of the kidney.
4. Percutaneous nephrolithotripsy: suitable for diameter <20mm (or surface area <500mm2), but due to severe hydronephrosis, anatomical deformity or stone site extracorporeal shock wave lithotripsy as well as flexible ureteral nephrolithotripsy is not suitable for treatment.
The basic principle of treatment of renal stones is to provide early relief of acute and chronic symptoms, relief of renal outflow tract obstruction, minimization of stone load or removal of stones and treatment of associated complications on the basis of maximum protection of renal function and no additional damage.
At the same time, it is necessary to analyze the causes of stone development to prevent or reduce the recurrence of stones.
Kidney stones should be treated in a hospital, under the guidance of the doctor to choose the appropriate treatment plan, the use of drugs need to follow the doctor's instructions.