1/84. Muscle phosphofructokinase deficiency (Tarui's disease): report of a case.A 14-year-old girl had an acute episode of rhabdomyolysis after vigorous exercise and seizures. Laboratory studies revealed elevated creatine phosphokinase (CPK) activity and myoglobinuria without acute renal failure, as well as mild indirect hyperbilirubinemia, and hyperuricemia. The elevated CPK activity, mild indirect hyperbilirubinemia, and hyperuricemia persisted during a 10-month follow-up period, during which chronic hemolysis without overt anemia was also noted. A muscle biopsy specimen from the left biceps muscle revealed occasional muscle fiber necrosis and mild excess of glycogen accumulation on periodic acid-Schiff staining. Histochemical reactions were negative with phosphofructokinase (PFK) stain when fructose-6-phosphate was used as the substrate, but positive when fructose 1,6-bisphosphate was used as the substrate. These findings confirmed the diagnosis of muscle PFK deficiency (Tarui's disease), which is a defect of glycolysis in muscles and erythrocytes. Less than 40 such patients have been reported to date. When a specific metabolic myopathy is suspected in children with rhabdomyolysis, symptoms of hemolysis should also be sought to identify Tarui's disease. To the best of our knowledge, this is the first case of Tarui's disease identified in taiwan.- - - - - - - - - - ranking = 1keywords = myopathy (Clic here for more details about this article) |
2/84. rhabdomyolysis in association with Duchenne's muscular dystrophy.PURPOSE: To present a case of rhabdomyolysis which developed in a child with a known history of Duchenne's muscular dystrophy, following an anesthetic which included sevoflurane. CLINICAL FEATURES: An 11 yr old boy with a known history of Duchenne's muscular dystrophy underwent anesthesia for strabismus repair. The anesthetic consisted of sevoflurane and nitrous oxide without the use of a muscle relaxant. His postoperative course was complicated by a complaint of heel pain and the development of myoglobinuria. He was treated with dantrolene sodium and discharged home after two days, without further complication. CONCLUSION: Sevoflurane anesthesia has not been shown previously to be associated with the development of acute rhabdomyolysis in a child with a history of Duchenne's muscular dystrophy. As with halothane and isoflurane, the continued use of sevoflurane in the presence of Duchenne's muscular dystrophy should be questioned.- - - - - - - - - - ranking = 14.894531505092keywords = muscular dystrophy, dystrophy (Clic here for more details about this article) |
3/84. Case of the month: February 1999--54 year old man with severe muscle weakness.A 54 year old man developed rhabdomyolysis one year after beginning treatment with a combination of lovastatin (an HMGCoA reductase inhibitor) and niacin. Muscle biopsy showed a severe necrotizing myopathy affecting both fibre types. Recovery occured gradually with cessation of medication. The spectrum of cholesterol lowering agent myopathy may include delayed cases of unusual severity.- - - - - - - - - - ranking = 2keywords = myopathy (Clic here for more details about this article) |
4/84. Acute myoedema: an unusual presenting manifestation of hypothyroid myopathy.We describe a patient with primary hypothyroidism due to autoimmune thyroiditis, presenting with acute myoedema and spontaneous rhabdomyolysis. During his hospital stay, he developed altered sensorium due to hypo-osmolal hyponatraemia and later developed bilateral foot drop that responded to appropriate treatment.- - - - - - - - - - ranking = 4keywords = myopathy (Clic here for more details about this article) |
5/84. Acute alcoholic myopathy, rhabdomyolysis and acute renal failure: a case report.A case of middle aged male who developed swelling and weakness of muscles in the lower limbs following a heavy binge of alcohol is being reported. He had myoglobinuria and developed acute renal failure for which he was dialyzed. Acute alcoholic myopathy is not a well recognized condition and should be considered in any intoxicated patient who presents with muscle tenderness and weakness.- - - - - - - - - - ranking = 5keywords = myopathy (Clic here for more details about this article) |
6/84. myoglobinuria and transient acute renal failure in a patient revealing hypothyroidism.Muscle involvement in hypothyroidism commonly manifests as fatigue, myalgias, stiffness and slowed reflexes. We report a case of transient acute renal failure related to rhabdomyolysis and myoglobinuria in a 40 year old man that revealed the diagnosis of hypothyroidism with myopathy. The patient had proximal muscle weakness and tenderness, markedly raised muscle enzymes and deranged renal functions that normalised with thyroid replacement therapy. hypothyroidism, though rare, should be considered a definite and authentic cause of rhabdomyolysis.- - - - - - - - - - ranking = 1keywords = myopathy (Clic here for more details about this article) |
7/84. Suxamethonium-induced rhabdomyolysis in a healthy middle-aged man.A 43-year-old man developed rhabdomyolysis after uvulo- palatopharyngoplasty. After induction with thiopentone and suxamethonium the anesthesia was maintained with halothane. The patient responded to treatment and made an uneventful recovery. In earlier reports of rhabdomyolysis after general anaesthesia with halothane and suxamethonium almost all the patients had malignant hyperthermia (MH) or muscular dystrophy. About 50% of malignant hyperthermia patients carry a mutation in the RYR1 gene. Our patient did not have mutations in the four MH-associated genes tested, but the total amount of different mutations is by now about twenty. Therefore, despite these negative tests rhabdomyolysis may be a sign of subclinical malignant hyperthermia which cannot be ruled out by our investigations. This rare case of rhabdomyolysis in a healthy man suggests careful monitoring of the patient when-ever suxamethonium is used.- - - - - - - - - - ranking = 1.8618164381365keywords = muscular dystrophy, dystrophy (Clic here for more details about this article) |
8/84. simvastatin-induced rhabdomyolysis in a patient with chronic renal failure.simvastatin belongs to a class of lipid-lowering drugs which completely inhibit 3-hydroxy-3-methylglutaryl co-enzyme A (HMG CoA) reductase. The commonest adverse effects of therapy with simvastatin HMG CoA reductase inhibitors are gastro-intestinal disturbance, myositis and myopathy. rhabdomyolysis leading to renal failure has been reported, but it appears to be very rare, except in patients also receiving cyclosporin, nicotinic acid or gemfibrozil. Here we report the case of an elderly lady who was known to have chronic renal failure, but who developed rhabdomyolysis following simvastatin therapy. Her symptoms of muscle pain, fatigue, myoglobulinuria, oliguria and pulmonary oedema appeared 48 h after the first dose of simvastatin. simvastatin was immediately stopped, and the patient was dialysed for 1 week. Her renal function improved and came back. We suggest that extreme care should be exercised in prescribing this drug, particularly for the elderly with renal impairment.- - - - - - - - - - ranking = 1keywords = myopathy (Clic here for more details about this article) |
9/84. A case with severe rhabdomyolysis and renal failure associated with cerivastatin-gemfibrozil combination therapy--a case report.gemfibrozil-statin combination therapy is a well-known risk factor for myopathy and rhabdomyolysis. Cerivastatin is a currently available statin with dual elimination; it is therefore expected to cause less drug-drug interaction. This case is the second reported case with severe rhabdomyolysis caused by cerivastatin-gemfibrozil combination. Moreover, in this case, the rhabdomyolysis was more severe and caused severe renal failure and death. The authors discuss how these drugs cause rhabdomyolysis and how rhabdomyolysis can cause renal failure.- - - - - - - - - - ranking = 1keywords = myopathy (Clic here for more details about this article) |
10/84. rhabdomyolysis secondary to a drug interaction between simvastatin and clarithromycin.OBJECTIVE: To report a case of rhabdomyolysis resulting from concomitant use of clarithromycin and simvastatin. CASE SUMMARY: A 64-year-old African-American man was admitted to the hospital for worsening renal failure, elevated creatine phosphokinase, diffuse muscle pain, and severe muscle weakness. About three weeks prior to admission, the patient was started on clarithromycin for sinusitis. The patient had been receiving simvastatin for approximately six months. He was treated aggressively with intravenous hydration, sodium bicarbonate, and hemodialysis. A muscle biopsy revealed necrotizing myopathy secondary to a toxin. The patient continued to receive intermittent hemodialysis until his death from infectious complications that occurred three months after admission. There were several factors that could have increased his risk for developing rhabdomyolysis, including chronic renal failure. DISCUSSION: clarithromycin is a potent inhibitor of CYP3A4, the major enzyme responsible for simvastatin metabolism. The concomitant administration of macrolide antibiotics and other hydroxymethylglutaryl coenzyme a (HMG-CoA) reductase inhibitors have resulted in previous reports of rhabdomyolysis. Other factors may increase the risk of this drug interaction, including the administration of other medications that are associated with myopathy, underlying renal insufficiency, and administration of high doses of HMG-CoA reductase inhibitors. CONCLUSIONS: Macrolide antibiotics inhibit the metabolism of HMG-CoA reductase inhibitors that are metabolized by CYP3A4 (i.e., atorvastatin, cerivastatin, lovastatin, simvastatin). This interaction may result in myopathy and rhabdomyolysis, particularly in patients with renal insufficiency or those who are concurrently taking medications associated with myopathy.- - - - - - - - - - ranking = 4keywords = myopathy (Clic here for more details about this article) |
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