![]() ![]() On occasion, more than one access tract or an additional ‘second look’ procedure may be needed to remove all the stones. Through a sheath, ultrasound, mechanical and/or laser energy is used to break the stone into small pieces and remove them. A lighted telescope (nephroscope) is used to see the stone. Percutaneous nephrolithotomy is performed under general anesthesia through a small incision in the back. PCNL is the gold standard treatment option for patients with large or multiple stones (>2cm), or stones filling the entire kidney (staghorn calculus). Using Shock Waves to Treat Kidney Stones Percutaneous Nephrolithotomy (PCNL) The doctor will discuss with each patient the pros/cons and risks of ureteroscopy vs. The procedure can be performed as an outpatient. Although success rates are not as high as ureteroscopy, one of the benefits is that a stent is not needed. The stone is targeted using either ultrasound or x-ray. ![]() Under sedation, a gel pad is placed on the patient’s back and ultrasonic shocks are used to break the stone into small pieces so it can then be passed. Shockwave lithotripsy is a non-invasive way to treat a single kidney stone. Most patients can return to their daily activities 7-10 days after surgery or as soon as they are comfortable. ![]() In this situation a repeat procedure will be necessary and is usually scheduled 1-2 weeks later. Occasionally the ureter may be too small to move the ureteroscope safely, so a ureteral stent is placed. It is removed in the office at a later date under local anesthesia. After this procedure, a temporary flexible drainage tube called a stent is left in place to drain the kidney. Even with this option, it is preferable to stop anticoagulants if it is safe to do so. Ureteroscopy is the only minimally invasive stone surgery that can be performed in patients on blood thinners. Multiple stones can be treated in one procedure. A laser is then passed through the ureteroscope to break the stone into small pieces that are removed from the body. Under general anesthesia, a small lighted telescope called a ureteroscope, is inserted into the urethra and guided into the ureter or kidney to the stone. Physicians routinely perform stone compositional analysis and offer 24hr metabolic evaluation to determine risk factors for forming stones while providing dietary and medical strategies to reduce the patients’ risk of subsequent stone formation. The goal at Boston Medical Center is to make the patients’ first stone attack their last. Stone extraction in conjunction with other procedures (i.e robotic pyeloplasty).Endoscopic treatment for large bladder stones.Ultrasound guided ureteroscopy during pregnancy.Urologists at Boston Medical Center (BMC) specialize in all minimally invasive procedures to treat kidney stones including: To determine if a patient has kidney stones, the doctor will order one or more imaging studies. Patients who develop kidney stones are at increased risk of developing stones again in the future. Your urine may also lack substances that prevent crystals from sticking together, creating a perfect situation for stones to form. ![]() Stones form when your urine contains more crystal-forming substances than the fluid in your urine can dilute. Several risk factors may increase your risk of developing kidney stones, but they often have no definite single cause. Kidney Stones can cause pain, bleeding, infection, nausea/vomiting, blockage of the kidney and/or ureteral stricture, which could lead to loss of renal function. Kidney Stones are hard deposits that form when your urine contains more crystal-forming substances - such as calcium and uric acid - than the fluid in your urine can dilute.
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