Kidney stone medical therapy

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Amandeep Singh M.D.[2]

Overview

The treatment of nephrolithiasis involves different measures e.g non pharmacological measures consisting of increased fluid intake, straining an dietary restrictions. Pharmacological measures include pain relief using NSAIDs and opioids., helping passage of stone spontaneously with drugs like tamsulosin and nifedipine. The treatment of underlying cause and being specific to type of stones is very important.It involves treating primary hyperparathyroidism and Renal tubular acidosis. For those having high urinary calcium, Hydrochlorothiazide or Chlorthalidone are used. For recurrent stones and high urine uric acid, Allopurinol is used. For recurrent stones and hypocitraturia, Potassium citrate is sued to alkalinize the urine. For uric acid stones, alkalinizing urine with potassium citrate/potassium bicarbonate is done and if needed Allopurinol is also used. For struvite stones, medical therapy is not of much help, although urease inhibitors such as acetohydroxamic acid can be given in urease +ve etiology. For cysteine stones, again alkalinizing urine helps along with Tiopronin. The Urological consult is needed when stone >10 mm in diameter, uncontrolled pain, Anuria, or there is Acute kidney injury.

Medical Therapy

Nephroliithiasis

Non pharmacological measures

  • Increased fluid intake
  • Straining
    • Stone ≤5 mm can pass spontaneously.
    • Passage of stone also depends on the site of stone[1]
  • Evaluating diet as per the composition of stones, for example:
    • Diet containing excess proteins can precipitate uric acid stones
    • Diet containing excess phosphorus can cause struvite stone

Pharmacological measures

  • Both NSAIDS and opiods are seen efficacious for the pain relief related to nephrolithiasis.[2]
  • The combination works in effective pain relief.[3]
  • NSAIDS should be stopped before undergoing Extracorporeal shockwave lithotripsy to reduce the risk of bleeding.
Pain relief
Non steroidal anti inflammatory drugs (NSAIDS)
  • Parenteral regimen
    • Preferred regimen (1): Ketorolac 60 mg as a single dose or 30 mg IM q6h
    • Alternative regimen (1): Ketorolac 10 to 30 mg (as single dose) IM and then q4-6 h as needed (maximum: 120 mg/day)
    • Alternative regimen (2): Ketorolac 30 mg as a single dose or 30 mg IV q6h (maximum: 120 mg/day)
  • Oral regimen
    • Preferred regimen (1): Ketorolac 20 mg, followed by 10 mg q4-6 h as needed; maximum: 40 mg/day; follows the parenteral dose (contraindicated in patients with renal failure)
    • Alternative regimen (1):Indomethacin 20 mg PO q8h
    • Alternative regimen (2):Indomethacin 40 mg PO q8-12h

Opioids

  • Parenteral regimen
    • Preferred regimen (1): Morphine 5 mg IV q4h as needed
Passage of stone
  • The passage of stones depend on the size and location of the stone.[4][5][6]
  • Stones ≤5 mm in diameter pass spontaneously.
  • It decrease as the size grows and not likely for sizes ≥10 mm in diameter.
  • Stones which are proximal are less likely to pass spontaneously.
  • Oral regimen
Type specific treatment

Treating the underlying cause is very important.

Urologic consult

References

  1. Miller OF, Kane CJ (September 1999). "Time to stone passage for observed ureteral calculi: a guide for patient education". J. Urol. 162 (3 Pt 1): 688–90, discussion 690–1. PMID 10458343.
  2. Holdgate A, Pollock T (June 2004). "Systematic review of the relative efficacy of non-steroidal anti-inflammatory drugs and opioids in the treatment of acute renal colic". BMJ. 328 (7453): 1401. doi:10.1136/bmj.38119.581991.55. PMC 421776. PMID 15178585.
  3. Cordell WH, Wright SW, Wolfson AB, Timerding BL, Maneatis TJ, Lewis RH, Bynum L, Nelson DR (August 1996). "Comparison of intravenous ketorolac, meperidine, and both (balanced analgesia) for renal colic". Ann Emerg Med. 28 (2): 151–8. PMID 8759578.
  4. Miller OF, Kane CJ (September 1999). "Time to stone passage for observed ureteral calculi: a guide for patient education". J. Urol. 162 (3 Pt 1): 688–90, discussion 690–1. PMID 10458343.
  5. Parekattil SJ, Kumar U, Hegarty NJ, Williams C, Allen T, Teloken P, Leitão VA, Netto NR, Haber GP, Ballereau C, Villers A, Streem SB, White MD, Moran ME (February 2006). "External validation of outcome prediction model for ureteral/renal calculi". J. Urol. 175 (2): 575–9. doi:10.1016/S0022-5347(05)00244-2. PMID 16406999.
  6. Coll DM, Varanelli MJ, Smith RC (January 2002). "Relationship of spontaneous passage of ureteral calculi to stone size and location as revealed by unenhanced helical CT". AJR Am J Roentgenol. 178 (1): 101–3. doi:10.2214/ajr.178.1.1780101. PMID 11756098.
  7. Ahmed AF, Al-Sayed AY (March 2010). "Tamsulosin versus Alfuzosin in the Treatment of Patients with Distal Ureteral Stones: Prospective, Randomized, Comparative Study". Korean J Urol. 51 (3): 193–7. doi:10.4111/kju.2010.51.3.193. PMC 2855456. PMID 20414396.
  8. Vicentini FC, Mazzucchi E, Brito AH, Chedid Neto EA, Danilovic A, Srougi M (November 2011). "Adjuvant tamsulosin or nifedipine after extracorporeal shock wave lithotripsy for renal stones: a double blind, randomized, placebo-controlled trial". Urology. 78 (5): 1016–21. doi:10.1016/j.urology.2011.04.062. PMID 21802124.
  9. Ye Z, Yang H, Li H, Zhang X, Deng Y, Zeng G, Chen L, Cheng Y, Yang J, Mi Q, Zhang Y, Chen Z, Guo H, He W, Chen Z (July 2011). "A multicentre, prospective, randomized trial: comparative efficacy of tamsulosin and nifedipine in medical expulsive therapy for distal ureteric stones with renal colic". BJU Int. 108 (2): 276–9. doi:10.1111/j.1464-410X.2010.09801.x. PMID 21083640.
  10. 10.0 10.1 10.2 Pearle MS, Goldfarb DS, Assimos DG, Curhan G, Denu-Ciocca CJ, Matlaga BR, Monga M, Penniston KL, Preminger GM, Turk TM, White JR (August 2014). "Medical management of kidney stones: AUA guideline". J. Urol. 192 (2): 316–24. doi:10.1016/j.juro.2014.05.006. PMID 24857648.
  11. 11.0 11.1 Pak CY, Sakhaee K, Fuller C (September 1986). "Successful management of uric acid nephrolithiasis with potassium citrate". Kidney Int. 30 (3): 422–8. PMID 3784284.
  12. Trinchieri A, Esposito N, Castelnuovo C (September 2009). "Dissolution of radiolucent renal stones by oral alkalinization with potassium citrate/potassium bicarbonate". Arch Ital Urol Androl. 81 (3): 188–91. PMID 19911683.
  13. 13.0 13.1 Kenny JE, Goldfarb DS (April 2010). "Update on the pathophysiology and management of uric acid renal stones". Curr Rheumatol Rep. 12 (2): 125–9. doi:10.1007/s11926-010-0089-y. PMID 20425021.
  14. Wong H, Riehl RL, Griffith DP. Medical management and prevention of struvite stones. In: Kidney stones: Medical and surgical management, Coe FL, Favis MJ, Pak CC, et al (Eds), Lippincott-Raven, Philadelphia 1996.
  15. Portis AJ, Sundaram CP (April 2001). "Diagnosis and initial management of kidney stones". Am Fam Physician. 63 (7): 1329–38. PMID 11310648.
  16. Teichman JM (February 2004). "Clinical practice. Acute renal colic from ureteral calculus". N. Engl. J. Med. 350 (7): 684–93. doi:10.1056/NEJMcp030813. PMID 14960744.

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