Nephrolithiasis resident survival guide

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Andrea Tamayo Soto [2]

Definition

Causes

Life Threatening Causes

  • Renal Obstruction
  • Renal Isquaemia
  • Renal Impairment

Common Causes[1]

Management

Diagnostic Approach

Shown below is an algorithm depicting the diagnostic approach to Nephrolithiasis based on the 2014 Review of the Cleveland Clinic, urological and kidney institute.[2]

 
 
 
 
 
Characterize the symptoms:[3]

Abdominal Pain

Colic pain
❑ Irradiated to the lower abdomen and groin
❑ Acute, moderate to severe pain

Urinary urgency
Dysuria
Polyuria
Vomits
Nausea
Malaise

Fever and chills
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Obtain a detailed history:

❑ History of kidney stones

❑ Personal and Family
❑ Treatment
❑ Stone analysis

❑ History of UTI or pyelonephritis
❑ Anatomic Features

❑ Horse shoe kidney
❑ Solitary kidney
❑ Obstruction of uteropelvic junction
❑ Previous Kidney or ureteral surgery

❑ Diseases such as:

Hyperparathyroidism
Renal tubular acidosis
Cystinuria
Gout
Diabetes mellitus type 2 or Insulin resistance
Inflammatory bowel disease
Renal insufficiency
Sarcoidosis
Gastro-intestinal pathology

❑ Drug treatments and regular intake:

❑ Carbonic anhydrase inhibitor
Ephedrine
Sulfadiazine
Calcium and Vitamin D
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Examine the patient:

❑ Measure the blood pressure
❑ Measure the heart rate
❑ Measure the temperature
❑ Abdomen

❑ Tender
❑ Painful
Obesity
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Order labs and tests:

Urinalysis

Microscopic hematuria
❑ Nitrates
Leucocytes
Crystalluria

Hemogram

Complete blood count
❑ Serum electrolytes
Urea
Creatinine

CT
Ultrasound if pregnant
Intravenous Pyelography
❑ 24 hour urine collection analysis

Calcium
Phosphorus
Magnesium
Uric acid
Oxalate
 
 
 
 

Therapeutic Approach

Shown below is an algorithm depicting the therapeutic approach to Nephrolithiasis:

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

References

  1. Hall PM (2009). "Nephrolithiasis: treatment, causes, and prevention". Cleve Clin J Med. 76 (10): 583–91. doi:10.3949/ccjm.76a.09043. PMID 19797458.
  2. Frassetto L, Kohlstadt I (2011). "Treatment and prevention of kidney stones: an update". Am Fam Physician. 84 (11): 1234–42. PMID 22150656.
  3. Miller NL, Lingeman JE (2007). "Management of kidney stones". BMJ. 334 (7591): 468–72. doi:10.1136/bmj.39113.480185.80. PMC 1808123. PMID 17332586.


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