Renal stones, also known as kidney stones, form in the urinary tract and can affect any part from the kidneys to the bladder. Risk factors include metabolic abnormalities, warm climates, certain diets, genetics, and lifestyle. The five major types of renal stones are calcium phosphate, calcium oxalate, uric acid, cysteine, and struvite. Symptoms include severe side and back pain, painful urination, hematuria, and nausea. Diagnostic tests include imaging like ultrasounds and CT scans as well as urine and blood tests. Treatment options depend on the size and location of the stone and include shockwave lithotripsy, percutaneous nephrolithotomy, ureter
3. Introduction
Urolithiasis and nephrolithiasis refer to stones (calculi) in the urinary
tract and kidney, respectively.
Kidney stones have many causes and can affect any part of urinary
tract- from kidney to bladder. Urinary stones account for more than
320,000 hospital admissions each year.
The occurrence of urinary stones occurs predominantly in the third to
fifth decades of life and affects men more than women. About half of
patients with a single renal stone have another episode within 5
years. Stone formation occurs more often in the summer months,
thus supporting the role of dehydration in this process.
4. Risk factors
Metabolic: abnormalities that result in increased urine levels of
calcium, oxaluric acid, uric acid, or citric acid.
Climate: warm climates that cause increased fluid loss, low urine
volume, and increased solute concentration in urine.
Diet:
Large intake of dietary proteins that increases uric acid excretion.
Excessive amounts of tea or fruit juices that elevate urinary oxalate
level.
Large intake of calcium and oxalate.
Low fluid intake that increases urinary concentration.
Genetic factor: family history of stone formation, cystinuria, gout
and renal acidosis.
Lifestyle: sedentary occupation, immobility, obesity.
6. Types of renal stone:
The five major categories of stones are:
1) Calcium phosphate stones
2) Calcium oxalate stones
3) Uric acid stones
4) Cysteine stones
5) Struvite stones (magnesium ammonium phosphate)
7. Clinical manifestation
Severe pain in the side and back, below the ribs
Pain that radiates to the lower abdomen and groin
Pain that comes in waves and fluctuates in intensity
Pain on urination
Tenderness
Hematuria
Persistent need to urinate
Cloudy or foul-smelling urine
Nausea and vomiting
Fever and chills if an infection is present
8. Diagnostic studies
Imaging:
X-ray of the abdomen (KUB)
Ultrasonography
Iv urography
Retrograde pyelography
CT scan
blood testing:
complete blood count
renal function test
Biochemical tests
urine testing:
24-hour urine test
microscopic examination of urine
urine culture
analysis of passed stones
12. Extracorporeal Shock-
Wave Lithotripsy
ESWL is used to remove stones slightly smaller than a half inch
that are located near the kidneys. This method uses ultrasonic
waves or shock waves to break up stones. Then, the stones
leave the body in the urine.
13. Percutaneous
Nephrolithotomy
Percutaneous Nephrolithotomy or
nephrostomy is used for large
stones in or near the kidney, or
when kidneys or surrounding
areas are incorrectly formed. The
stone is removed with an
endoscope that is inserted into the
kidney through a small opening.
14. Ureteroscopy
It may be used for stones in
the lower urinary tract. It
involves first visualizing the
stone and then destroying it.
Access to the stone is
accomplished by inserting an
ureteroscope into the ureter
and then inserting a laser
electrohydraulic lithotripter or
ultrasound device through the
ureteroscope to fragment and
remove stone.
15.
16. Percutaneous Stone
Dissolution
Stone dissolution using infusions of chemical
solutions (chemo lysis) such as alkylating
agents, acidifying agent for the purpose of
dissolving the stone.
17. Cystolithotomy
Removal of bladder calculi through a suprapubic
incision is used only stones cannot be crushed
and removed transurethral.
18. Partial Total Nephrectomy
Partial Total Nephrectomy is necessary because of extensive
kidney damage, overwhelming renal infection abnormal renal
parenchyma, which can be responsible for stone formation.
20. Nursing diagnosis:
Acute pain related to effects of renal stone and inadequate pain
control or comfort measures as evidenced by complain of pain,
facial grimacing, restlessness.
Impaired urinary elimination related to trauma or blockage of
ureters or urethra as evidenced by decreased urinary output,
hematuria.
Ineffective therapeutic regimen management related to lack
of knowledge regarding disease process, prevention of
recurrence, diet and fluid requirements as evidenced by
questions about how to prevent future renal stones.
Risk for deficient fluid volume related to nausea and vomiting
as evidenced by observe patient’s condition.
21. Nutritional management:
Increase fluid intake is the mainstay
calcium stones: Patient with calcium-based renal
stones were advised to restrict calcium in their diet.
Uric acid stones: low-purine diet. foods high in purine
(shellfish, anchovies, asparagus, mushroom, and
organ meats)
Cysteine stones: low-protein diet
Oxalate stones: Intake of oxalate is limited. Theses
include spinach, strawberries, chocolate, tea, peanuts,
and wheat barn.
22. Complication
Decrease or loss of kidney function
Scarring, kidney damage
Obstruction of the ureter
Stones recurrence
Urinary tract infection (UTI)
Renal colic
23. Research study:
Renal stone epidemiology: A 25-year study in Rochester,
Minnesota. There are no adequate studies of the incidence of
urolithiasis in the United States, in spite of earlier claims that a
“stone belt” exists in the southeastern section of the country. This
report is the first description of the incidence and recurrence rates
for symptomatic noninfected renal stones in a well-defined
population. A total of 798 patients were enrolled in the study group,
of whom 672 were incidence cases having had their first episode as
documented residents of Rochester, Minnesota, between 1950 and
the end of 1974. The annual age-adjusted incidence rate for
females was stable over the 25-year study period at 36.0 per
100,000 population. That for males increased significantly (P <
0.02) from 78.5 per 100,000 to 123.6 per 100,000. Recurrence
calculations showed a high rate for both sexes in the first year,
followed by lower but constant rates for all succeeding years.