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Query: UMLS:C0000737 (abdominal pain)
 31,184 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Familial renal hypouricemia with exercise-induced acute renal failure (ARF) is rare. A 45-year-old man presented with abdominal pain, vomiting, and oliguria after severe exercise. The diagnosis was ARF based on high serum creatinine (SCr) level (5.1 mg/dL [451 micromol/L]). Renal function recovered completely within 2 weeks of conservative treatment (creatinine clearance [Ccr], 100.4 mL/min [1.67 mL/s]). After remission, laboratory results showed serum urate (SUA) of 0.8 mg/dL (48 micromol/L), and fractional excretion of uric acid (FE(UA)) of 46%. The final diagnosis was ARF associated with idiopathic renal hypouricemia. Other diseases that could increase the excretion of urate were excluded. Because only mild responses were observed both in pyradinamide and benzbromarone loading tests, he was considered to be a presecretory reabsorption disorder type. The younger brother (42 years old) also had episodes of low and middle back pain after severe exercise and experienced similar attacks at least 5 times since the age of 29. SCr level was elevated in every attack. Hypouricemia (SUA, 1.0 mg/dL [59 micromol/L]) and high urinary urate excretion (FE(UA), 65.7%) also were detected. Renal function recovered almost completely without any specific treatment. Radiologic examination of the 2 cases showed bilateral urolithiasis probably caused by the high urinary urate excretion. Sequence analysis of a urate anion exchanger known to regulate blood urate level (URAT1 gene) in both brothers showed homozygous mutation in exon 4 (W258Stop), resulting in a premature truncated URAT1 protein. Both their parents and their children showed heterozygous mutation of the URAT1 gene. This is the first report of the 2 male siblings of familial renal hypouricemia complicated with exercise-induced ARF, with definite demonstration of genetic abnormality in the responsible gene (URAT1).
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PMID:Two male siblings with hereditary renal hypouricemia and exercise-induced ARF. 1465 3

A retrospective review was performed of the records of 148 Croatian children with urolithiasis treated between 1989 and 2003. The study evaluated age, gender, family history, clinical symptoms, location of stone, laboratory findings, stone composition, mode of treatment and compared our results with data from higher and lower socio-economic countries. The mean age of our patients was 9.38 years (10 months to 18 years). Thirty-seven children (25%) were less than 5 years (group 1), 44 (29.7%) were between 5 and 10 years (group 2) and 67 (45.3%) were older than 10 years of age (group 3). There were 60 girls and 88 boys with overall male to female ratio of 1.47. Abdominal pain (83%) and haematuria (59.5%) were the main symptoms in the groups 2 and 3. Urinary tract infection was predominant symptom in the group 1 (62.1%). Calculi were located in the kidney in 90 children (60.8%), in the ureter in 39 (26.4%), in the bladder in 8 (5.4%). Urinary tract anomalies with or without infection were associate with a greater frequency of urolithiasis in the youngest age group and hypercalciuria was predominant cause in children over 5. Stone analysis was performed in 80 children. Predominant constituent of stones was calcium oxalate (48.7%), followed by struvite (25%), calcium phosphate (13.7%), cystine (10%) and uric acid (1.2%). Calcium oxalate stones were most common in all age groups. Struvite stones were most prevalent in the children younger than 5 years of age. Most patients (33.1%) underwent surgery for removal of their calculi. In 31.8% of children stones were passed spontaneously and the highest spontaneous passage rate was in the group 3 (37.3%). Stone composition, location and etiology in Croatian children are similar to those in developed Western countries.
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PMID:Pediatric urolithiasis in Croatia. 1474 67

We report two cases of urolithiasis related to anorexia nervosa and laxative abuse. Case 1: A 21-year-old woman was referred to our hospital because of left flank pain. A left ureteral stone, 10 x 6 mm in size, was successfully fragmented by extracorporeal shock-wave lithotripsy (ESWL), but she experienced repetitive formation of bilateral urinary stones and double J stent encrustation which required 13 sessions of ESWL, one session of transurethral ureterolithotripsy and one session of cystolithotripsy over a period of 5 years. All stones were comprised of pure ammonium acid urate. It was later revealed that she was diagnosed with anorexia nervosa at 15 years old and had suffered from laxative abuse (bisacodyl, 300-500 mg/day) ever since. Case 2: A 18-year-old woman was referred to our hospital because of left lower abdominal pain. A left renal stone, 15 x 10 mm in size, was successfully fragmented by ESWL, but she had double J stent encrustation which was managed by cystolithotripsy. All stones were comprised of pure ammonium acid urate. She was later diagnosed with anorexia nervosa and it turned out that she had suffered from an eating disorder and laxative abuse (bisacodyl, 200 mg/day) since the age of 15 years. Both patients had marked decrease in urine volume, hyponatremia and hypokalemia. Anorexia nervosa and laxative abuse should be suspected whenever a woman has an ammonium acid urate stone in sterile urine because the treatment of these disorders is crucial to the prevention of repetitive formation of urinary stones.
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PMID:[Two cases of ammonium acid urate urinary stones related to anorexia nervosa and laxative abuse]. 1514 70

Urolithiasis is rare in children. Contrary to adults, the great majority have an identifiable predisposing cause, metabolic, infectious or structural. Those causes often coexist. A complete assessment for all these factors is thus always indicated. Symptoms are often non-specific. The diagnosis must be considered in case of intense abdominal pain. The majority of urolithiasis in children are radiopaque. Ultrasonography looks for impairment of the urinary flow, signs of underlying uropathy and nephrocalcinosis. Non contrast spiral CT scan is more sensitive for soft stones and ureteral stones. Morphoconstitutional analysis of the calculi provides essential information on etiology, limitating further metabolic evaluation. If the stone seems unlikely to pass spontaneously, extra-corporeal shock wave lithotripsy is the first-line treatment for the great majority of children. Recurrence is common. Long-term medical treatment is essential. The first step is to maintain a high urine output by increasing water intake. Long-term prognosis is dependent on early diagnosis and on compliance to treatment.
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PMID:[Urolithiasis in children and adolescents]. 1518 33

We identified 40 pediatric patients with urolithiasis. There were 27 boys and 13 girls. Initial symptoms were abdominal pain, with or without microscopic hematuria in 40% of the cases, and urinary tract infection/pyelonephritis in 25% of the cases. Stones were made of struvite (35% of the cases), calcium-phosphate (25%) or calcium-oxalate (20%). The high prevalence of struvite stones reflects the importance of urinary tract infection a major cause of urolithiasis in that specific age group. Hypercalciuria was the most common urinary biochemical abnormality, found in more than 50% of the children. In the absence of a spontaneous passage of the stone, extra-corporeal shock wave lithotripsy represents an excellent therapeutic option. This article emphasizes the importance of stone analysis and extensive biochemical investigations in children with urolithiasis, in order to avoid recurrence and potential progression towards chronic renal failure.
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PMID:[Urinary calculi epidemiology in children]. 1549 64

An 8-year-old, entire male crossbreed dog had a 2-day history of abdominal pain and straining to urinate and defecate. A diagnosis of urolithiasis with urinary retention, and probable prostatitis was made. The dog was treated with fluids and enrofloxacin. Five days later, ultrasonography of the prostate showed two hypoechoic areas compatible with abscesses. Twelve hours later, the patient started to urinate from the rectum during micturition and urethrorectal fistula was diagnosed. The omentalization of the prostatic abscesses and castration were performed and calculi were removed. The urethrorectal fistula was treated conservatively with an indwelling urinary catheter, a low residue diet and antibiotics. The dog recovered uneventfully without recurrence of the fistula.
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PMID:A urethrorectal fistula due to prostatic abscess associated with urolithiasis in a dog. 1668 90

Renal medullary carcinoma (RMC) is an aggressive neoplasm occurring almost exclusively in adolescents and young adults with sickle cell (SC) hemoglobinopathies, usually sickle cell trait (SCT) or hemoglobin SC disease. The most common presentations are hematuria and flank or abdominal pain. It is a highly malignant tumor, and responses to chemotherapy are rare and transient resulting in a dismal prognosis. A high level of suspicion is necessary when evaluating at risk patients presenting with hematuria or flank pain, as currently it appears that only early diagnosis could potentially alter the outcome of this disease. We report a case of RMC in a young male patient with SCT, who presented to the emergency department with low back pain and microscopic hematuria, clinically mimicking acute obstructing urolithiasis. Our case emphasizes the need to consider alternate diagnoses when evaluating computed tomography scans for acute flank pain.
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PMID:Renal medullary carcinoma: unsuspected diagnosis at stone protocol CT. 1740 14

A 25-year-old woman presented in the third trimester of pregnancy with severe abdominal pain in the lower right abdominal quadrant. Differential diagnosis included urolithiasis, adnexal torsion and appendicitis. A definitive diagnosis could not be made based on clinical and laboratory examination. Ultrasonography revealed a 3-cm cyst in the lower right abdomen, which was considered unlikely to cause abdominal pain. During laparotomy, adnexal torsion was found, which was deemed to be the cause of the abdominal pain. The twisted portion was uncoiled and the dark-coloured cyst was extirpated. The cyst was determined to be a cystic adenoma. Adnexal torsion is rarely caused by cysts smaller than 5 cm, especially in the third trimester. Emergency laparoscopyllaparotomy should be performed if adnexal torsion is suspected to confirm the diagnosis and uncoil the twist to prevent ovarian damage. Adnexal torsion should be considered in the differential diagnosis of acute abdominal pain in the third trimester of pregnancy.
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PMID:[Acute abdominal pain in the third trimester of pregnancy caused by adnexal torsion based on a small cystic adenoma]. 1795 74

Hypercalcemia is an uncommon cause of abdominal pain and may be overlooked in the Emergency Department. In this case report, we describe the case of a 48-year-old woman with a prior history of urolithiasis who presented to the Emergency Department with diffuse abdominal pain. She had taken Trichlormethiazide 1 mg daily for her urolithiasis. She was diagnosed with thiazide-related hypercalcemia; hyperparathyroidism and thyroid papillary carcinoma were unveiled during her hospitalization. A thorough history and complete physical examination, paired with appropriate but judicious diagnostic testing, are essential to detecting these unusual causes of abdominal pain.
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PMID:An unusual cause of abdominal pain: thiazide-related hypercalcemia in a patient with veiled hyperparathyroidism and thyroid papillary carcinoma. 1802 79

We present a 69-year-old man with repeated urinary tract infection and lower abdominal pain. Kidney-ureter-bladder (KUB) scout film showed a huge, 320-g triangular pelvic calculus that was surgically removed with excellent results. Bladder stone is a common disease, but it is rare for such a calculus to be so large as to cause bilateral hydronephrosis. Surgical intervention by cystolithotomy or endoscopic cystolithotripsy can achieve satisfactory results. Bladder outlet obstruction should be treated simultaneously. Close follow-up, however, is mandatory because the recurrence of urolithiasis is high in those patients with voiding problems and recurrent urinary infection. To the best of our knowledge, this is the largest bladder stone in a human male. This case report also illustrates the importance of radiologic evaluation of patients with repeated urinary infections.
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PMID:A huge pelvic calculus causing acute renal failure. 1827 20


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