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Treating Kidney Stones With Ureteroscopy

May 29, 2026

Transcript

  • 00:05The kidney's primary job is
  • 00:08to filter the blood of
  • 00:09excess waste, minerals,
  • 00:12and fluid.
  • 00:13So anything that you've consumed
  • 00:15in excess that the body
  • 00:16doesn't need or is trying
  • 00:17to get rid of, the,
  • 00:18kidneys will filter the blood,
  • 00:19convert it into urine, and
  • 00:21then pass it on to
  • 00:21the urinary tract or the
  • 00:23bladder.
  • 00:24If the concentration or the
  • 00:26amount of minerals relative to
  • 00:28the fluid is high, then
  • 00:30a crystallization of minerals can
  • 00:32come together and form a
  • 00:33stone.
  • 00:35The classic kidney stone symptom
  • 00:37is severe pain and that
  • 00:39usually happens when a small
  • 00:41enough kidney stone gets on
  • 00:42the move and tries to
  • 00:44pass. And as it's going
  • 00:45down the ureter, which is
  • 00:46the narrow tube that connects
  • 00:48the kidney to the bladder,
  • 00:50it can block the ureter
  • 00:51almost like a cork in
  • 00:52a bottle. And as the
  • 00:54ureter becomes blocked, the urine
  • 00:56being created by the kidney
  • 00:57starts to back up into
  • 00:58the kidney,
  • 00:59balloon the kidney up, and
  • 01:01stretch the capsule or the
  • 01:02skin of the kidney, and
  • 01:03that's where all the nerves
  • 01:04are. And so with that
  • 01:06stretching,
  • 01:07you get really bad pain
  • 01:08referred to as a colic,
  • 01:09very similar to really severe
  • 01:11gas pain.
  • 01:14When a kidney is blocked
  • 01:15by a kidney stone and
  • 01:17the kidney starts to back
  • 01:18up with urine,
  • 01:19that kidney becomes congested.
  • 01:22If the kidney's blocked for
  • 01:23a long period of time
  • 01:24with poor blood flow, it
  • 01:25can deteriorate the kidney. And
  • 01:26so even if someone is
  • 01:28not having symptoms necessarily from
  • 01:30a blocked kidney, we don't
  • 01:31like to sit on that
  • 01:32for too long. We'll give
  • 01:33them a chance to try
  • 01:34to pass the stone if
  • 01:34it's practical.
  • 01:36However, at some point, we
  • 01:37need to unblock that kidney
  • 01:38because you could deteriorate the
  • 01:40kidney over time, and it'll
  • 01:41affect your kidney function.
  • 01:47Most patient stones are treated
  • 01:50via ureteroscopy.
  • 01:52This is a procedure in
  • 01:53which we would pass a
  • 01:54very small flexible camera into
  • 01:57the urinary tract, up the
  • 01:58ureter, and into the kidney,
  • 02:00see the stone, visualize it,
  • 02:02break it with a laser,
  • 02:03and then recover the stone
  • 02:05fragments.
  • 02:06The main benefit of ureteroscopy
  • 02:09is that you have incredible
  • 02:10flexibility
  • 02:11to address stones in any
  • 02:12region of the urinary tract.
  • 02:14So all the way down
  • 02:15low in the ureter close
  • 02:16to the bladder, higher up
  • 02:17in the kidney throughout multiple
  • 02:19spots in the kidney.
  • 02:21Under a single anesthesia, they
  • 02:22can have all of their
  • 02:23stones treated. They're less likely
  • 02:25to need multiple procedures to
  • 02:26get them out. It's less
  • 02:28invasive in that we're not
  • 02:30making an incision into the
  • 02:31body to get to the
  • 02:32stones.
  • 02:34It is generally an outpatient
  • 02:36procedure.
  • 02:37People are back to normal
  • 02:39activities within a couple days
  • 02:40and fully recovered usually about
  • 02:42a week afterwards.
  • 02:45One of the things I'm
  • 02:46most proud about here at
  • 02:47Yale is being on the
  • 02:48cutting edge of surgical interventions
  • 02:50for kidney stones.
  • 02:52We offer
  • 02:53the whole host of operations
  • 02:55and procedures available to treating
  • 02:57kidney stones.
  • 02:58Within the realm of ureteroscopy,
  • 03:00we've adopted aspiration
  • 03:02sheets, which are almost like
  • 03:04a Dyson vacuum cleaner that
  • 03:05we can maneuver throughout the
  • 03:06kidney, break up the stones,
  • 03:08and suck out the pieces
  • 03:10and the dust,
  • 03:11which is the best predictor
  • 03:12of preventing a stone event
  • 03:14in the future, getting every
  • 03:16single morsel of stone out.
  • 03:17It also has allowed us
  • 03:19to tackle larger stones that
  • 03:22previously had to be addressed
  • 03:23through an incision in the
  • 03:25back of percutaneous nephrolithotomy.
  • 03:27Now we can go in,
  • 03:28dust them up with a
  • 03:29high power laser, suck out
  • 03:31all the pieces, and convert
  • 03:32it to an outpatient procedure
  • 03:33with a much easier recovery
  • 03:35for the patient.
  • 03:37So we've really been able
  • 03:39to miniaturize
  • 03:40and minimize the amount of
  • 03:42morbidity and pain and recovery
  • 03:44period for patients
  • 03:46requiring kidney stone surgery.