Renal stones Flashcards Preview

DPD > Renal stones > Flashcards

Flashcards in Renal stones Deck (9)
Loading flashcards...
1

what are the different stones?

- RENAL stones: cause excruciating loin pain
- URETERIC stones: cause ureteric colic, radiates from loin to groin
- BLADDER or URETHRAL stones: cause pain on micurtition and interrupt urine flow

2

how can they be classified?

- size: <5, 5-20, 20, staghorn
- location: renal (calyceal, plevic, diverticular)
- Xray characteristic: radiolucent or opaque
- stone composition: Ca, Ox, CaP, uric acid, cysteine, indinavir

3

what is ureteric colic described as?

- loin pain
- soft abdomen
- microscopic haematuria (in 85%)

4

what are the causes of ureteric colic?

- stones
- TCC
- blood clot passing
- RPF
- BPH, CaP

5

what are the other DDx?

- AAA
- testicular torsion
- perforated PU
- appendicitis
- ruptured ectopic pregnancy
- MI
- diverticulitis
- prostatitis
- ovarian torsion

6

what is the management of colic?

- analgesia
- basic investigations (FBC, UE, Ca, urine dipstick, bhCG)
- KUB, CT KUB
- wait for stone to pass

7

what do you do medically if the stone is too large?

- alkalinise or acidify urine
- prevent UTI
- allopurinol

8

what do you do surgically if the stone is too large?

- ESWL (lithiotripsy = shock wave treatment)
- uterorenoscopy with laser (much more invasive as it involves inserting rigid scope into ureter or kidney)
- PCNL (percutaneous nephrolithiotomy = laproscopic removal of stpne woth forceps, invasive)

9

what is obstructive pyeloneophrosis?

- life threatening infection of kidney, occurs following stone obstructing
- tx = drainage of abscesses and tx in intensive care