Which event is unlikely to occur after placing a DJ ureteral stent?
can be forgotten in place
vesico-renal reflux
calyceal perforation
detrusor irritability and/or hematuria
Correct Answer :
C. calyceal perforation
calyceal perforation by DJ catheter is not a known complication.
Related Questions
What could the discomfort experienced during ESWL session be related to?
the energy density of the shock waves as they pass through the skin
the size of the focal point
a & b
none of the above
In what kind of renal stones do antibiotics help most?
indinavir
magnesium ammonium phosphate
xanthine
matrix
What is true regarding prostatic stones?
they are multiple and small in size
usually, they are voided spontaneously
they, rarely, form large stones within the peripheral zone
contrast CT is the conventional method for diagnosis
What is the sure diagnostic finding of Ca.oxalate stones?
chemical analysis of a recovered stone
hypercalcemia
CT finding
high breakability on ESWL
How can the effectiveness of ESWL treatment session be enhanced?
by ensuring optimal coupling of the patient to the lithotripter
by running the treatment at a slower rate (60 shocks/min)
by running the treatment with general anesthesia
by all of the above
What is false concerning patient`s preparation for PCNL?
active UTI is an absolute contraindication
fluoroquinolone is the first choice for antimicrobial prophylaxis
withholding aspirin for only 10 days is enough
despite sterile urine, stone fragmentation might release hidden bacterial endotoxins and viable bacteria
On treating uric acid stones, excessive alkalinization with potassium citrate could result in all of the following, EXCEPT:
formation of triple-phosphate stones
infection with Proteus species
increase production of endogenous uric acid
increase level of uric acid in THE blood
What is a remarkable disadvantage of ultrasonic imaging for ESWL?
localization of stones in the ureter is difficult or impossible
inability to visualize stones breaking down in real time
c. patient`s position on ESWL table is uncomfortable
d. inability to visualize radiolucent stones
What is the most important parameter that determines the treatment modality of a kidney stone?
stone chemical composition
stone burden
first stone vs. recurrent
stone density
What is true concerning primary hyperparathyroidism and stone formation?
orthophosphates may have a role in the treatment
hyperparathyroidectomy and levothyroxine replacement is the optimum treatment
management includes Calcium chelating agent and repeat 24hr urine collection in 3 months
surgical excision of the adenoma(s) is the treatment of choice
What is the most favorable stone characteristics for laparoscopic and robotic approaches for the treatment of a kidney stone?
a stone in the lower calyx with a wide mouth of infundibulum and obtuse lower calyx to ureter angle
a stone in an anterior group calyceal diverticulum with thin overlying renal parenchyma
5 mm calcium-containing stone in an intrarenal pelvis and wide UPJ
6 years post anatrophic nephrolithotomy, recurrent mid calyceal stone
What is the incidence risk of ureteral strictures following ureteroscopy?
3 6 %
12 15 %
0.4 0.8 %
0.09 0.14 %
What is false concerning urethral stones?
stones at posterior urethra could be pushed back to the bladder
stones at anterior urethra have to undergo a trial of milking out, using copious intra-urethral xylocaine gel
often respond to a two-week course of tamsulosin
respond to Holmium laser treatment
What is (are) the indication(s) of hospitalization of ureteral stone patients?
steinstrasse
a stone in ureterocele
fever, leucocytosis, pain
brushite stones
What kind of stones is most amenable to ESWL?
cystine
brushite
Ca.oxalate monohydrate
Ca.oxalate dihydrate
What is the immediate management of ureteral avulsion on retrieving an upper ureteral stone by a basket?
placement of a percutaneous nephrostomy drain
surgical exploration and primary repair
conservative management
endoscopic retrograde ureteral stenting
Which of the following factors, positively, affect lower calyceal stone clearance after ESWL?
short and wide infundibulum
large lower-pole infundibulo-pelvic angle
the adjunct usage of PCNL
all of the above
What is the treatment of choice for a 15 mm stone in the lower calyx with a narrow infundibulum?
ESWL
PCNL
radial nephrolithotomy
pyelolithotomy with ureteral stenting
What risk factor(s) promote(s) stone formation?
dehydration
metabolic disorders
congenital anomalies
all of the above
Ureteral stones of ≥ 7 mm:
should be treated with more analgesics
must undergo metabolic worked out
are unlikely to pass out spontaneously
chemolysis should be tried first
What parameter is NOT considered in the stone burden concept?
the surface area of the stones
the volume of the stones
the density of the stones
the number of the stones
What is the preferred entry point into the collecting system for PCNL for a 2.4 cm renal pelvis stone?
anterior lower pole calyx
posterior lower pole calyx
anterior upper pole calyx
posterior upper pole calyx
What is false concerning obesity and urinary stone formation?
obese patients have a higher tendency for uric acid stone formation
high-protein, low-carbohydrate diet might increase the risk of stone formation and bone loss
metabolic syndrome is associated with high urinary pH
Roux-en-Y-gastric bypass surgery may increase the risk for stone formation
Two weeks of prolonged wound drainage after a non-stented Anderson-Hynes pyeloplasty. What would be next step in the management?
watchful waiting
open surgical correction
IVU with possible endoscopic ureteral stenting
perc. nephrostomy tube insertion
What is false regarding DJ ureteral stents?
can be introduced from the bladder or kidney or any part of the ureter`s course
the standard adult size is 32 cm long, 4 mm calibre
might result in encrustations and ureteral obstruction
might result in ureteral dilation
What is false regarding hypomagnesuric calcium nephrolithiasis?
it is characterized by low urinary magnesium and citrate
magnesium increases renal tubular citrate resorption
diarrheal is a remarkable side effect of magnesium therapy
potassium-magnesium preparations might restore urinary magnesium and citrate levels
What is the most common organism that might complicate PCNL?
Proteus mirabilis
E. coli
Pseudomonas aeruginosa
Staphylococcus epidermidis
What is false concerning preputial stones?
form due to inspissated smegma
form due to stasis of urinary salts
cause inguinal lymphadenopathy
often associated with phimosis in uncircumcised males
What is false concerning cystine stones?
result from an inherited defect of renal tubular reabsorption of cysteine
characteristically, urate and cysteine stone are radiolucent
cysteine is a dibasic amino acid
on plain X-ray, cysteine stones exhibit ground-glass appearance
What does NOT appear as a filling defect in the renal pelvis on IVU?
fungal ball
radiolucent stone
urothelial growth
upper end of DJ ureteral stent