Kidney stones often go unnoticed and are only noticed when they begin to move from the kidney and clog the urinary tract, generating what’s often referred to as renal colic.
Kidney stones, also called urolithiasis or nephrolithiasis, is a disease caused by the presence of calculi or stones inside the kidneys or urinary tract (ureters or bladder). A stone or calculus can be as small as a grain of sand or even larger than a pearl.
“Kidney stones are of multi factorial origin and are most usually associated with genetic abnormalities, infections and dietary factors that cause the stones to develop when mineral salts build up; salts that would normally dissolve in the urine,” explained Dr. Sven Petry, chief of urology at Quironsalud Torrevieja.
The increase in solutes, the change in urinary pH and the decrease in crystallization inhibitors facilitate the process of stones forming. Eventually, stones will form when urine becomes concentrated, allowing minerals to crystallize and stick together.
Symptoms of a kidney stone
Urinary stones often go unnoticed for a long time and are only noticed when they start to move from the kidney and into the ureters (tubes made of smooth muscle that propel urine from the kidneys to the urinary bladder) where the urinary tract becomes clogged, usually causing extremely intense spasmodic pain, called colic.
“Imaging tests can easily show kidney stones in the urinary tract, such as ultrasound, simple radiology or computed tomography,” explained Dr. Araceli Amorós, urologist at Quirónsalud Alicante and Elche.
What types of people are more likely to develop kidney stones?
Any metabolic disorder such as hyperparathyroidism, hyperuricemia or autoimmune diseases such as Crohn’s can favour the production of kidney stones.
However, it must be taken into account that a sedentary lifestyle, poor water intake, an unbalanced diet and increased body weight can also cause the production of kidney stones.
Is lithiasis a chronic disease or can it be treated?
Most small kidney stones do not normally require invasive treatment. However, larger stones that cannot be expelled through the urinary tract (anything measuring upwards of 7 mm) do require interventional treatment.
“The prevention of kidney stones requires a combination of lifestyle changes and medications,” recommend the specialists at Quirónsalud.
What treatments are performed for kidney stones?
It should be noted that in stones less than 2 cm, extracorporeal shock wave lithotripsy (ESWL) is used. The ESWL technique is performed on an outpatient basis with sedation and uses sound waves to create strong vibrations (shock waves) that break the stones into small pieces so they can be more easily passed out of the body in the urine.
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