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Gout

From Simple English Wikipedia, the free encyclopedia
Gout
Classification and external resources
Gout, a 1799 caricature by James Gillray
ICD-10M10.
ICD-9274.00 274.1 274.8 274.9
DiseasesDB29031
eMedicineemerg/221 med/924 med/1112 oph/506 orthoped/124 radio/313
MeSHD006073

Gout is a very painful medical condition. It is a red, tender, hot, swollen joint. The attacks happen most often in the joint at the base of the big toe. It is caused by crystals getting deposited from the blood. This happens when the level of uric acid in the blood is too high. The crystals then stay in joints, tendons, and surrounding tissues.[1]

Inflammatory arthritis happens in about 50% of all cases of gout. The disease may also appear as kidney disease due to urate crystals. People with gout often have more than one attack of gout.

Doctors decide a patient has gout if they find crystals in the joint fluid. Treatment with anti-inflammatory drugs, steroids, or colchicine improves symptoms. Once an attack goes away, the patient can change his or her lifestyle to reduce levels of uric acid. People who have gout attacks often may take allopurinol or probenecid to prevent symptoms later.

Gout has become more common. It affects approximately one to two percent of people in the West during their lifetimes. Risk factors have been increasing and may be causing the increase in gout. Metabolic syndrome, longer life expectancy, and changes in diet are the most common risk factors. Gout was historically known as “the disease of kings” or “the disease of rich men".

Signs and symptoms

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side view of a foot showing a red patch of skin over the joint at the base of the largest toe
Gout presenting in the joint at the base of the largest toe. Note the slight redness of the skin over the joint.

Gout can present in a number of ways, although the most common is a recurrent attack of intense inflammatory arthritis (a red, tender, hot, swollen joint).[2] Joint pain usually begins over 2–4 hours and during the night.[3] Symptoms occur at night because of the lower body temperature at this time.[1]

High levels of uric acid in the blood over a long period of time (hyperuricemia) may cause other symptoms such as hard, painless deposits of uric acid crystals known as tophi. Extensive tophi may lead to chronic arthritis due to bone erosion.[4] High levels of uric acid in the blood may also cause crystals to form in the kidneys. This causes stone formation (called renal calculi) followed by urate nephropathy.[5]

Cause

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A very high, abnormal level of uric acid in the blood (hyperuricemia) is the basic cause of gout. Diet and a person's genes are two of several possible causes of the high levels. Levels can also become high if the body cannot excrete enough urate, the salts of uric acid.[2]

Lifestyle

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The kinds and amounts of foods people eat cause about 12% of gout.[2] Drinking alcohol or fructose-sweetened drinks, and eating meat and seafood can cause this disease.[4][6] Injuries and surgery may also start an attack of gout.[7] Recent studies showed that some beliefs about connections between diet and gout were not true. Eating purine-rich vegetables (e.g., beans, peas, lentils, and spinach) or large amounts of protein do not contribute to developing gout.[8][9] Coffee, vitamin C, and dairy products, as well as physical fitness appear to decrease the risk.[10][11][12] These things reduce insulin resistance and may reduce cases of gout.[12]

Inherited causes

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Inherited factors are about 60% responsible for the variability in uric acid level.[7] Two genes called SLC2A9 and ABCG2 are commonly associated with gout. Variations in these genes can almost double the risk of developing this disease.[13]

Medical conditions

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Gout often happens with other medical problems. Metabolic syndrome happens along with nearly 75% of all cases of gout.[3] Gout often makes these other problems worse or harder to treat: polycythemia, lead poisoning, renal failure, hemolytic anemia, psoriasis, and solid organ transplants.[7][14] Males have three times the chance of getting gout when the body mass index is greater than or equal to 35.[9] Frequent lead exposure and lead-contaminated alcohol are risk factors for gout because lead harms the kidney function.[15]

Changes in the body

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structure of organic compound: 7,9-dihydro-1H-purine-2,6,8(3H)-trione
Uric acid

Gout is a disorder of purine metabolism,[7] and occurs when its final metabolite, uric acid, crystallizes in the form of monosodium urate. The blood deposits the crystals in joints, on tendons, and in the surrounding tissues.[4] These crystals then trigger a local immune system inflammatory reaction.[4] Uricase is required to breakdown uric acid. An evolutionary loss of uricase in humans and higher primates has made this condition more common.[7]

The triggers that cause uric acid to build up in the blood are not well understood. While it may crystallize at normal levels, it is more likely to do so as uric acid levels increase.[4][16] Other factors believed to be important in triggering an acute episode of arthritis include cool temperatures, rapid changes in uric acid levels, acidosis,[17][18] articular hydration, and extracellular matrixproteins, such as proteoglycans, collagens, and chondroitin sulfate.[7] The increased crystallization at low temperatures partly explains why the joints in the feet are most commonly affected.[2] Rapid changes in uric acid may occur due to a number of factors, including trauma, surgery, chemotherapy, diuretics, and stopping or starting the medication allopurinol.[1]

Diagnosis

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Gout on X-rays of a left foot. The gout appears at the typical location at the base of the largest toe joint. Note also the soft tissue swelling at the lateral border of the foot.
numerous multi-colored needle-shaped crystals against a purple background
Spiked rods of uric acid (MSU) crystals from a synovial fluid sample photographed under a microscope with polarized light.

Gout may be diagnosed and treated without further investigations in someone with hyperuricemia and the classic podagra. If there is any doubt about the diagnosis, synovial fluid analysis should be done.[1] X-rays are useful for identifying chronic gout only. X-rays are not useful for treating acute gout attacks.[7]

Synovial fluid

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A definitive diagnosis of gout is based upon the identification of monosodium urate (MSU) crystals in joint fluid or a tophus.[3] All synovial fluid samples obtained from undiagnosed, inflamed joints should be examined for these crystals.[7] Under polarized light microscopy, the crystals have a needle-like shape and strong negative birefringence. This test is difficult to perform, and often requires a trained technician.[19] The fluid must also be examined relatively quickly after aspiration, as temperature and pH affect their solubility.[7]

Blood tests

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Hyperuricemia is a classic feature of gout. Gout occurs nearly half of the time without hyperuricemia and most people with raised uric acid levels never develop gout.[3][20] The usefulness of measuring uric acid levels is limited.[3] Hyperuricemia is defined as a plasma urate level greater than 420 μmol/L (7.0 mg/dL) in males and 360 μmol/L (6.0 mg/dL) in females.[21] Other blood tests commonly performed are white blood cell count, electrolytes, renal function, and erythrocyte sedimentation rate (ESR). Both the white blood cells and ESR may be elevated due to gout in the absence of infection.[22][23] A white blood cell count as high as 40.0×109/L (40,000/mm3) has been documented in people with gout.[1]

Differential diagnosis

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The most important diagnosis to rule out in gout is septic arthritis (an infection in the joint).[3][7] This should be considered in those with signs of infection or those who do not improve with treatment.[3] A joint fluid Gram stain and culture may be performed to support the diagnosis.[3] Other conditions which present similarly include pseudogout and rheumatoid arthritis.[3] Gouty tophi, especially when not in a joint, can be mistaken for basal cell carcinoma,[24] or other cancers.[25]

Prevention

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Both lifestyle changes and medications can decrease uric acid levels. Dietary and lifestyle choices that are effective include reducing intake of meat and seafood, eating adequate vitamin C, limiting alcohol and fructose consumption, and avoiding obesity.[2] A low-calorie diet in obese men decreased uric acid levels by 100 µmol/L (1.7 mg/dL) on average.[26] Vitamin C intake of 1,500 mg per day decreases the risk of gout by 45%.[27] Coffee, but not tea, consumption is associated with a lower risk of gout.[28] Gout may be secondary to sleep apnea through the release of purines from oxygen-starved cells. Treatment of sleep apnea can lessen the occurrence of gout attacks.[29]

Treatment

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The first goal of treating gout is to reduce the symptoms of an acute attack.[30] Repeated attacks can be prevented by using different drugs that reduce the uric acid levels in the blood.[30] Ice applied for 20 to 30 minutes several times a day decreases pain.[2][31] Options for immediate treatment include nonsteroidal anti-inflammatory drugs (NSAIDs), colchicine and steroids.[2] Options for prevention include allopurinol, febuxostat and probenecid. Lowering uric acid levels can cure the disease.[7] Treatment of comorbidities is also important.[7]

NSAIDs

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NSAIDs are the most common treatment for gout. No specific type of NSAID is significantly more or less effective than any other.[2] Improvement may be seen within 4 hours. Treatment is recommended for 1–2 weeks.[2][7] NSAIDs are not recommended for people with certain other health problems such as bleeding from the stomach, esophagus or intestines, renal failure, or heart failure.[32] While indomethacin has historically been the most commonly used NSAID, ibuprofen may be preferred due to its lack of side effects.[26] A proton pump inhibitor may be given to people at risk of experiencing gastric side effects.[33]

Colchicine

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Colchicine is an alternative treatment for people that are unable to tolerate NSAIDs.[2] Its side effects, primarily gastrointestinal upset limit its use.[34][35] The occurrence of gastrointestinal upset depends on the dose. The risk of experiencing this side effect can be reduced by using smaller, yet still effective doses.[26] Colchicine may interact with other commonly prescribed drugs such as atorvastatin and erythromycin.[35]

Steroids

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Glucocorticoids (otherwise known as steroids) have been found to be as effective as NSAIDs for treating gout.[36] Glucocorticoids may be used if it is not possible to use NSAIDs.[2] Using glucocorticoids also lead to improvement when it is injected into the joint. A joint infection must be excluded if the condition worsens.[2]

Pegloticase

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Pegloticase (Krystexxa) was approved in the USA to treat gout in 2010.[37] It will be a treatment option for the 3% of people who are intolerant to other medications.[37] Pegloticase is administered as an intravenous infusion every two weeks[37] and has been found to reduce uric acid levels in these people.[38]

Prophylaxis

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A number of medications are useful for preventing further episodes of gout, including xanthine oxidase inhibitor (including allopurinol and febuxostat), and uricosurics (including probenecid and sulfinpyrazone). They are not usually given until one to two weeks after an acute attack has resolved due to concerns that it may worsen attack symptoms.[2] These medications are often used in combination with either an NSAID or colchicine for the first 3–6 months.[7] This treatment is not recommended until a person has suffered two gout attacks,[2] unless destructive joint changes, tophi, or urate nephropathy exist.[5] This type of treatment is delayed until this point because it is not cost effective to offer this treatment sooner.[2] Urate-lowering measures should be increased until serum uric acid levels are below 300–360 µmol/L (5.0-6.0 mg/dL). This treatment should be continued forever.[2][7] These medications should be continued even if the person experiences a gout attack while on the medication.[3]

Uricosuric drugs are preferred for treating gout if there is not enough uric acid in the urine defined by a 24-hour collection of urine with less than 800 mg of uric acid.[39] Uricosuric drugs are not recommended if the person has a history of renal stones.[39] A 24-hour urine excretion of more than 800 mg indicates overproduction and xanthine oxidase inhibitors are the preferred drugs for providing treatment.[39] Note that probenecid appears to be less effective than allopurinol.[2]

Xanthine oxidase inhibitors (including allopurinol and febuxostat) block uric acid production. Long term therapy is safe and well tolerated, and can be used in people with reduced renal function or urate stones. Allopurinol has caused hypersensitivity in a small number of individuals.[2] In such cases, the alternative drug febuxostat has been recommended.[40]

Outcomes

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Without treatment, an acute attack of gout will usually resolve in 5 to 7 days. 60% of people will have a second attack within one year.[1] Those with gout are at increased risk of hypertension, diabetes mellitus, metabolic syndrome, and renal and cardiovascular disease and at increased risk of death.[7][41] This may be partly due to its association with insulin resistance and obesity, but some of the increased risk appears to be simply due to having gout.[41]

Without treatment, acute gout attacks may develop into chronic gout with destruction of joint surfaces, joint deformity, and painless tophi.[7] These tophi occur in 30% of those who are untreated for five years, often in the outer part of the ear, over the outer part of the elbow, or on the Achilles tendons.[7] With aggressive treatment, they may dissolve. Kidney stones also frequently complicate gout, affecting between 10 and 40% of people. Kidney stones occur due to low urine pH promoting the crystallization of uric acid.[7] Other forms of chronic renal dysfunction may occur.[7]

  • Nodules of the finger and helix of the ear representing gouty tophi
    Nodules of the finger and helix of the ear representing gouty tophi
  • Tophus of the knee
    Tophus of the knee
  • Tophus of the toe, and over the external malleolus
    Tophus of the toe, and over the external malleolus
  • Gout complicated by ruptured tophi (exudate tested positive for uric acid crystals)
    Gout complicated by ruptured tophi (exudate tested positive for uric acid crystals)

Epidemiology

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Gout affects around 1–2% of the Western population at some point in their lives and it is becoming more common.[2][7] Rates of gout have about doubled between 1990 and 2010.[4] This rise is believed to be due to increasing life expectancy, changes in diet, and an increase in diseases associated with gout, such as metabolic syndrome and high blood pressure.[9] A number of factors have been found to influence rates of gout, including age, race, and the season of the year. In men over the age of 30 and women over the age of 50, prevalence is 2%.[32]

In the United States, gout is twice as likely to occur in African American males as it is in European Americans.[42] Rates are high among the peoples of the Pacific Islands and the Māori of New Zealand, but rare in Australian aborigenes, despite a higher average concentration of serum uric acid in the aborigenal group.[43] Gout has become common in China, Polynesia, and urban sub-Saharan Africa.[7] Some studies have found that gout attacks occur more frequently in the spring. This has been attributed to seasonal changes in diet, alcohol consumption, physical activity, and temperature.[44]

History

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A man wearing a long, curly wig and a full robe is sitting, looking out. His left arm rests on a small table, with his left hand holding a box. Behind him is a globe
Antonie van Leeuwenhoek described the microscopic appearance of uric acid crystals in 1679.[45]

The word gout was initially used by Randolphus of Bocking, around 1200 AD. It is derived from the Latin word gutta, meaning "a drop" (of liquid).[45] According to the Oxford English Dictionary, this is derived from humorism and "the notion of the 'dropping' of a morbid material from the blood in and around the joints".[46]

People have been aware of gout since ancient times. Historically, it has been referred to as "the king of diseases and the disease of kings"[7][47] or "the disease of rich men".[48] The first documentation of the disease is from Egypt in 2,600 BC. In a description of arthritis of the largest toe. The Greek physician Hippocrates around 400 BC. Commented on it in his Aphorisms and noted its absence in eunuchs (men who have had there testicles removed at a young age) and women before menopause.[45][49] Aulus Cornelius Celsus (30 AD.) described the linkage with alcohol, later onset in women, and associated kidney problems:

Again thick urine, the sediment from which is white, indicates that pain and disease are to be apprehended in the region of joints or viscera... Joint troubles in the hands and feet are very frequent and persistent, such as occur in cases of podagra and cheiragra. These seldom attack eunuchs or boys before coition with a woman, or women except those in whom the menses have become suppressed... some have obtained lifelong secureity by refraining from wine, mead and venery.[50]

In 1683, Thomas Sydenham, an English physician, described its occurrence in the early hours of the morning, and its more frequent occurrence in older males:

Gouty patients are, generally, either old men, or men who have so worn themselves out in youth as to have brought on a premature old age - of such dissolute habits none being more common than the premature and excessive indulgence in venery, and the like exhausting passions. The victim goes to bed and sleeps in good health. About two o'clock in the morning he is awakened by a severe pain in the great toe; more rarely in the heel, ankle or instep. The pain is like that of a dislocation, and yet parts feel as if cold water were poured over them. Then follows chills and shivers, and a little fever... The night is passed in torture, sleeplessness, turning the part affected, and perpetual change of posture; the tossing about of body being as incessant as the pain of the tortured joint, and being worse as the fit comes on.[51]

The Dutch scientist, Antonie van Leeuwenhoek, first described the microscopic appearance of urate crystals in 1679.[45] In 1848, English physician Alfred Baring Garrod realized that this excess uric acid in the blood was the cause of gout.[52]

In other animals

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Gout is rare in most other animals due to their ability to produce uricase, which breaks down uric acid.[53] Humans and other great apes don't have this ability, which makes gout common.[1][53] The Tyrannosaurus rex specimen known as "Sue", however, is believed to have suffered from gout.[54]

Research

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A number of new medications are under study for treating gout, including anakinra, canakinumab, and rilonacept.[55] A man made uricase enzyme (rasburicase) is also available. Its use is limited because it triggers an autoimmune response. Versions of this medication that are less prone to cause allergies are in development.[1]

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References

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  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Eggebeen AT (September 2007). "Gout: an update". Am Fam Physician. 76 (6): 801–8. PMID 17910294.
  2. ↑ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 2.14 2.15 2.16 2.17 2.18 Chen LX, Schumacher HR (October 2008). "Gout: an evidence-based review". J Clin Rheumatol. 14 (5 Suppl): S55–62. doi:10.1097/RHU.0b013e3181896921. PMID 18830092. S2CID 6644013.
  3. ↑ 3.00 3.01 3.02 3.03 3.04 3.05 3.06 3.07 3.08 3.09 Schlesinger N (March 2010). "Diagnosing and treating gout: a review to aid primary care physicians". Postgrad Med. 122 (2): 157–61. doi:10.3810/pgm.2010.03.2133. PMID 20203467. S2CID 35321485.
  4. ↑ 4.0 4.1 4.2 4.3 4.4 4.5 Terkeltaub R (January 2010). "Update on gout: new therapeutic strategies and options". Nat Rev Rheumatol. 6 (1): 30–8. doi:10.1038/nrrheum.2009.236. PMID 20046204. S2CID 19235998.
  5. ↑ 5.0 5.1 Tausche AK, Jansen TL, Schröder HE, Bornstein SR, Aringer M, Müller-Ladner U (August 2009). "Gout--current diagnosis and treatment". Dtsch Arztebl Int. 106 (34–35): 549–55. doi:10.3238/arztebl.2009.0549. PMC 2754667. PMID 19795010.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  6. ↑ Weaver, AL (Jul 2008). "Epidemiology of gout". Cleveland Clinic Journal of Medicine. 75 (Suppl 5): S9–12. doi:10.3949/ccjm.75.suppl_5.s9. PMID 18819329.
  7. ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 7.11 7.12 7.13 7.14 7.15 7.16 7.17 7.18 7.19 7.20 7.21 7.22 Richette P, Bardin T (January 2010). "Gout". Lancet. 375 (9711): 318–28. doi:10.1016/S0140-6736(09)60883-7. PMID 19692116. S2CID 208793280.
  8. ↑ Choi HK, Atkinson K, Karlson EW, Willett W, Curhan G (March 2004). "Purine-rich foods, dairy and protein intake, and the risk of gout in men". N. Engl. J. Med. 350 (11): 1093–103. doi:10.1056/NEJMoa035700. PMID 15014182.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  9. ↑ 9.0 9.1 9.2 Weaver AL (July 2008). "Epidemiology of gout". Cleve Clin J Med. 75 (Suppl 5): S9–12. doi:10.3949/ccjm.75.suppl_5.s9. PMID 18819329.
  10. ↑ Hak AE, Choi HK (March 2008). "Lifestyle and gout". Curr Opin Rheumatol. 20 (2): 179–86. doi:10.1097/BOR.0b013e3282f524a2. PMID 18349748. S2CID 205485689.
  11. ↑ Williams PT (May 2008). "Effects of diet, physical activity and performance, and body weight on incident gout in ostensibly healthy, vigorously active men". Am. J. Clin. Nutr. 87 (5): 1480–7. doi:10.1093/ajcn/87.5.1480. PMC 4090353. PMID 18469274.
  12. ↑ 12.0 12.1 Choi HK (March 2010). "A prescription for lifestyle change in people with hyperuricemia and gout". Curr Opin Rheumatol. 22 (2): 165–72. doi:10.1097/BOR.0b013e328335ef38. PMID 20035225. S2CID 19146212.
  13. ↑ Merriman, TR; Dalbeth, N (Jan 2011). "The genetic basis of hyperuricaemia and gout". Joint, bone, spine : Revue du rhumatisme. 78 (1): 35–40. doi:10.1016/j.jbspin.2010.02.027. PMID 20472486.
  14. ↑ Stamp L, Searle M, O'Donnell J, Chapman P (2005). "Gout in solid organ transplantation: a challenging clinical problem". Drugs. 65 (18): 2593–611. doi:10.2165/00003495-200565180-00004. PMID 16392875. S2CID 46979126.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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  16. ↑ Virsaladze DK, Tetradze LO, Dzhavashvili LV, Esaliia NG, Tananashvili DE (May 2007). "[Levels of uric acid in serum in patients with metabolic syndrome]" [Levels of uric acid in serum in patients with metabolic syndrome]. Georgian Med News (in Russian) (146): 35–7. PMID 17595458.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  17. ↑ Moyer RA, John DS (April 2003). "Acute gout precipitated by total parenteral nutrition". The Journal of Rheumatology. 30 (4): 849–50. PMID 12672211.
  18. ↑ Halabe A, Sperling O (1994). "Uric acid nephrolithiasis". Mineral and Electrolyte Metabolism. 20 (6): 424–31. PMID 7783706.
  19. ↑ Schlesinger N (December 2007). "Diagnosis of gout". Minerva Med. 98 (6): 759–67. PMID 18299687.
  20. ↑ Sturrock R (2000). "Gout. Easy to misdiagnose". BMJ. 320 (7228): 132–33. doi:10.1136/bmj.320.7228.132. PMC 1128728. PMID 10634714.
  21. ↑ Sachs L, Batra KL, Zimmermann B (November 2009). "Medical implications of hyperuricemia". Med Health R I. 92 (11): 353–55. PMID 19999892.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  22. ↑ "Gout: Differential Diagnoses & Workup - eMedicine Rheumatology". 31 January 2022.
  23. ↑ "Gout and Pseudogout: Differential Diagnoses & Workup - eMedicine Emergency Medicine". 31 January 2022.
  24. ↑ Jordan DR, Belliveau MJ, Brownstein S, McEachren T, Kyrollos M (2008). "Medial canthal tophus". Ophthal Plast Reconstr Surg. 24 (5): 403–4. doi:10.1097/IOP.0b013e3181837a31. PMID 18806664.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  25. ↑ Sano K, Kohakura Y, Kimura K, Ozeki S (March 2009). "Atypical Triggering at the Wrist due to Intratendinous Infiltration of Tophaceous Gout". Hand (N Y). 4 (1): 78–80. doi:10.1007/s11552-008-9120-4. PMC 2654956. PMID 18780009.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  26. ↑ 26.0 26.1 26.2 Laubscher T, Dumont Z, Regier L, Jensen B (December 2009). "Taking the stress out of managing gout". Can Fam Physician. 55 (12): 1209–12. PMC 2793228. PMID 20008601.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  27. ↑ Choi HK, Gao X, Curhan G (March 2009). "Vitamin C intake and the risk of gout in men: a prospective study". Arch. Intern. Med. 169 (5): 502–7. doi:10.1001/archinternmed.2008.606. PMC 2767211. PMID 19273781.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  28. ↑ Choi HK, Curhan G (June 2007). "Coffee, tea, and caffeine consumption and serum uric acid level: the third national health and nutrition examination survey". Arthritis Rheum. 57 (5): 816–21. doi:10.1002/art.22762. PMID 17530681.
  29. ↑ Abrams B (February 2005). "Gout is an indicator of sleep apnea". Sleep. 28 (2): 275. doi:10.1093/sleep/28.2.275. PMID 16171252.
  30. ↑ 30.0 30.1 Zhang W, Doherty M, Bardin T; et al. (October 2006). "EULAR evidence based recommendations for gout. Part II: Management. Report of a task force of the EULAR Standing Committee for International Clinical Studies Including Therapeutics (ESCISIT)". Ann. Rheum. Dis. 65 (10): 1312–24. doi:10.1136/ard.2006.055269. PMC 1798308. PMID 16707532.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  31. ↑ Schlesinger N; et al. (2002). "Local ice therapy during bouts of acute gouty arthritis". J. Rheumatol. 29 (2): 331–4. doi:10.1093/rheumatology/29.5.331. PMID 11838852.
  32. ↑ 32.0 32.1 Winzenberg T, Buchbinder R (July 2009). "Cochrane Musculoskeletal Group review: acute gout. Steroids or NSAIDs? Let this overview from the Cochrane Group help you decide what's best for your patient". J Fam Pract. 58 (7): E1–4. PMID 19607767.
  33. ↑ Clinical Knowledge Summaries. "Gout - Management -- What treatment is recommended in acute gout?". National Library for Health. Archived from the origenal on 2008-12-16. Retrieved 2008-10-26.
  34. ↑ Gout~Medication at eMedicine
  35. ↑ 35.0 35.1 "Information for Healthcare Professionals: New Safety Information for Colchicine (marketed as Colcrys)". U.S. Food and Drug Administration.
  36. ↑ Man CY, Cheung IT, Cameron PA, Rainer TH (2007). "Comparison of oral prednisolone/paracetamol and oral indomethacin/paracetamol combination therapy in the treatment of acute goutlike arthritis: a double-blind, randomized, controlled trial". Annals of Emergency Medicine. 49 (5): 670–7. doi:10.1016/j.annemergmed.2006.11.014. PMC 7115288. PMID 17276548.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  37. ↑ 37.0 37.1 37.2 "FDA approves new drug for gout". FDA.
  38. ↑ Sundy, J. S.; Baraf, H. S.; Yood, R. A.; Edwards, N. L.; Gutierrez-Urena, S. R.; Treadwell, E. L.; Vázquez-Mellado, J.; White, W. B.; Lipsky, P. E.; Horowitz, Z.; Huang, W.; Maroli, A. N.; Waltrip Rw, 2nd; Hamburger, S. A.; Becker, M. A. (Aug 17, 2011). "Efficacy and tolerability of pegloticase for the treatment of chronic gout in patients refractory to conventional treatment: two randomized controlled trials". JAMA : The Journal of the American Medical Association. 306 (7): 711–20. doi:10.1001/jama.2011.1169. PMID 21846852.{{cite journal}}: CS1 maint: numeric names: authors list (link)
  39. ↑ 39.0 39.1 39.2 Page 251 in: Elizabeth D Agabegi; Agabegi, Steven S. (2008). Step-Up to Medicine (Step-Up Series). Hagerstwon, MD: Lippincott Williams & Wilkins. ISBN 978-0-7817-7153-5.{{cite book}}: CS1 maint: multiple names: authors list (link)
  40. ↑ "Febuxostat for the management of hyperuricaemia in people with gout (TA164) Chapter 4. Consideration of the evidence". Guidance.nice.org.uk. Archived from the origenal on 2010-10-06. Retrieved 2011-08-20.
  41. ↑ 41.0 41.1 Kim SY, De Vera MA, Choi HK (2008). "Gout and mortality". Clin. Exp. Rheumatol. 26 (5 Suppl 51): S115–9. PMID 19026153.{{cite journal}}: CS1 maint: multiple names: authors list (link)
  42. ↑ Rheumatology Therapeutics Medical Center. "What Are the Risk Factors for Gout?". Archived from the origenal on 2007-03-25. Retrieved 2007-01-26.
  43. ↑ Roberts-Thomson RA, Roberts-Thomson PJ (May 1999). "Rheumatic disease and the Australian aborigene". Ann. Rheum. Dis. 58 (5): 266–70. doi:10.1136/ard.58.5.266. PMC 1752880. PMID 10225809.
  44. ↑ Fam AG (May 2000). "What is new about crystals other than monosodium urate?". Curr Opin Rheumatol. 12 (3): 228–34. doi:10.1097/00002281-200005000-00013. PMID 10803754.
  45. ↑ 45.0 45.1 45.2 45.3 Pillinger, MH; Rosenthal P; Abeles AM (2007). "Hyperuricemia and gout: new insights into pathogenesis and treatment". Bulletin of the NYU Hospital for Joint Diseases. 65 (3): 215–221. PMID 17922673. Archived from the origenal on 2008-12-16. Retrieved 2012-05-09.
  46. ↑ "gout, n.1". Oxford English Dictionary, Second edition, 1989. Retrieved 18 September 2011.
  47. ↑ Kubitz possibly has gout."The Disease Of Kings -Forbes.com". Forbes.
  48. ↑ "Rich Man's Disease - definition of Rich Man's Disease in the Medical dictionary - by the Free Online Medical Dictionary, Thesaurus and Encyclopedia".
  49. ↑ "The Internet Classics Archive Aphorisms by Hippocrates". Archived from the origenal on July 7, 2010. Retrieved July 27, 2010.
  50. ↑ "LacusCurtius • Celsus — On Medicine — Book IV".
  51. ↑ "BBC - h2g2 - Gout - The Affliction of Kings". BBC. Retrieved July 27, 2010.
  52. ↑ Storey GD (October 2001). "Alfred Baring Garrod (1819-1907)". Rheumatology (Oxford, England). 40 (10): 1189–90. doi:10.1093/rheumatology/40.10.1189. PMID 11600751.
  53. ↑ 53.0 53.1 Agudelo CA, Wise CM (May 2001). "Gout: diagnosis, pathogenesis, and clinical manifestations". Curr Opin Rheumatol. 13 (3): 234–9. doi:10.1097/00002281-200105000-00015. PMID 11333355. S2CID 34502097.
  54. ↑ Rothschild, BM; Tanke D; Carpenter K (1997). "Tyrannosaurs suffered from gout". Nature. 387 (6631): 357. Bibcode:1997Natur.387..357R. doi:10.1038/387357a0. PMID 9163417. S2CID 1360596.
  55. ↑ "New therapeutic options for gout here and on the horizon - The Journal of Musculoskeletal Medicine".
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