Pneumocystis carinii pneumonia with hypercalcemia and suppressed parathyroid hormone levels in a renal transplant patient.
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Biomedical subjects
Publications and source records attributed to Yao-Min Hung.
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OBJECTIVE AND METHOD: We have previously successfully applied the Acute Physiology and Chronic Health Evaluation (APACHE) II system to assess the severity of patients with acute paraquat poisoning, and this article investigates further evidence of the usefulness of APACHE II system in predicting the in-hospital mortality of 64 patients with acute paraquat poisoning over a period of 12 years. The predictive factors including APACHE II score, plasma paraquat concentration, severity index of paraquat poisoning (SIPP), and estimated ingestion dosage of paraquat for evaluating the outcome in paraquat-poisoned patients were assessed. RESULTS: Overall mortality was 71.9%: 46 out of 64 patients died. Non-survivors (n = 46) had a higher APACHE II score (23.3 +/- 12.7) than survivors (n = 18) (6.1 +/- 4.2) (p < 0.001). The plasma paraquat concentration, SIPP, and estimated ingestion dosage of paraquat were significantly higher in non-survivors than in survivors (p < 0.05, in all comparisons). By multiple logistic regression analysis, only the APACHE II score and peak data of blood sugar in 24 h after admission were capable of predicting in-hospital mortality. By using the area under receiver operating characteristic curves (AURC), the APACHE II system yielded better discriminative power (AURC = 0.893) than SIPP (AURC = 0.674), plasma paraquat concentration (AURC = 0.676), and estimated ingestion dosage of paraquat (AURC = 0.673). An APACHE II score greater than 13 predicted in-hospital mortality with 67% sensitivity and 94% specificity. CONCLUSIONS: The APACHE II score is a simple, reproducible, and practical tool for evaluating the severity of acute paraquat poisoning.
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A 45-year-old man presented to the emergency department (ED) with acute renal and hepatic failure as well as hypotension and metabolic acidosis. Despite aggressive intensive care, he had continued hypotension, leukocytosis, fever, renal and hepatic failure, and lactic acidosis. On hospital day 3, pancytopenia was noted. Bone marrow biopsy showed marked aplasia without a specific etiology being elucidated. He received granulocyte colony-stimulating factor and antibiotics, but died on hospital day 12 after a cardiac arrest. The patient repeatedly denied intentional drug ingestion. Due to his clinical course, the poison center recommended obtaining a colchicine level. The plasma colchicine level, 72 h after admission, was 6.1 ng/mL (GC/MS). This level exceeds acute levels reported in some cases of prior fatalities. This case is novel in that the patient's multiple organ dysfunction remained unexplained for several days before occult colchicine toxicity was implicated as the probable cause by the colchicine level. Also, there was a paucity of gastrointestinal symptoms on presentation, the opposite of what is expected in colchicine toxicity.
We report an outbreak of ciguatoxin poisoning after barracuda fish ingestion in southern Taiwan. Three members of a family developed nausea, vomiting, watery diarrhea, and myalgias about 1 hour after eating three to ten eggs of a barracuda fish. Numbness of the lips and extremities followed the gastrointestinal symptoms about 2 hours after ingestion. Other manifestations included hyperthermia, hypotension, bradycardia, and hyperreflexia. Bradycardia persisted for several days, and one patient required a continuous infusion of intravenous atropine totaling 40 mg over 2 days. Further follow-up of the patients disclosed improvement of neurologic sequelae and bradycardia, but sensory abnormalities resolved several months later. In conclusion, ciguatoxin poisoning causes mainly gastrointestinal and neurologic effects of variable severity. In two patients with ciguatoxin poisoning after barracuda fish egg ingestion, persistent bradycardia required prolonged atropine infusion.
BACKGROUND: Intradialytic hypotension (IH) has been long recognized as a common complication during hemodialysis (HD) therapy, but few studies have discussed IH-related myocardial injuries and the long-term prognosis of patients prone to IH (HP). METHODS: We conducted a prospective study on 70 chronic HD patients who had no recent occurrences of acute coronary artery syndrome. The patients were divided into two groups: HP (n = 29) and IH resistant (n = 41). While they underwent HD therapy, we monitored and evaluated their baseline data and their patterns of cardiac troponin I (cTnI), creatine kinase, and creatine kinase isoenzyme MB. RESULTS: The HP and IH-resistant patients had similar baseline cardiac marker levels that did not seem to be influenced by uneventful HD therapy. However, if during HD therapy the patients experienced an episode of symptomatic IH, they were found to have significant increases in the creatine kinase MB activity at the end of HD therapy and in the cTnI levels 44 h following HD. After 12 months, the HP patients with baseline cTnI levels > or =0.20 ng/ml were more likely to experience cardiovascular events or death (adjusted odds ratio 15.0, p = 0.012). CONCLUSIONS: Our study showed that, after symptomatic IH episodes, the HP patients were more likely to suffer occult myocardial injuries. HP patients who have high cTnI levels should be closely monitored for cardiovascular diseases.
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BACKGROUND: The aim of this study was to evaluate the longitudinal changes in peritoneal transport in patients on long-term, peritonitis-free, continuous ambulatory peritoneal dialysis (CAPD) therapy. METHODS: Results were longitudinally recorded for the standard peritoneal equilibration test (PET) in 76 consecutive, nondiabetic, adult patients from the beginning of CAPD therapy until their first episodes of peritonitis, abdominal surgery, or any cause of drop out. The PET results were evaluated once annually using the dialysate-to-plasma ratio of creati-nine (D/PCr) and the dialysate-to-instilled dextrose ratio (D4/D0) at 4 hours after beginning dialysis. RESULTS: A total of 168 PET results were obtained. A statistically significant tendency toward decreased D/PCr and increased D4/D0 values over time for up to 3 years was found. CONCLUSIONS: This study shows a tendency toward progressive decline in small molecular transport over time in nondiabetic patients with uneventful CAPD therapy. Sequential PET follow-up cannot be overlooked in peritonitis-free CAPD patients.
Eleven cases of tuberculous peritonitis (TBP) in hemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD) patients at the Kaohsiung Veterans General Hospital in Kaohsiung, Taiwan between 1991 and 2000 were studied retrospectively (six cases in the HD group and five cases in the CAPD group) The diagnosis of TBP was established by either positive ascite tuberculosis (TB) culture or biopsy-proven chronic granulomatous inflammation. Fever and abdominal pain were the most common symptoms, while leukocytosis and unexplained hypercalcemia were the most common laboratory findings. Ascite analysis showed a lymphocyte predominance in all HD patients, but in only 40% of the CAPD patients. The mean duration of a diagnosis by ascite TB cultures was six weeks, while a diagnosis confirmed by laparascopic biopsy took one week. All four fatal cases were diagnosed by TB cultures. Laparoscopic biopsy provided a rapid diagnosis and resulted in low morbidity and mortality in our patients. Based on our review of all possible abstracts found in a Medline search from 1966 to 2002 using the keywords tuberculosis, peritonitis, uremia, and dialysis, this may be the first study of TBP in different dialysis patients.
Singulata, commonly known as hiccups, have many causes and are most often idiopathic and short-lived. Occasionally, hiccups can be persistent and becoming quite bothersome, distracting, and even disabling. Many medications have been implicated as a cause of hiccups. Although uncommon, corticosteroids and benzodiazepines are 2 classes of drugs most frequently associated with the development of hiccups. The following case series describes 5 patients with intravenous corticosteroid-associated hiccups reported to our adverse drug reaction reporting system between January 1998 and December 2000. Physicians using intravenous corticosteroids should be aware of this potential complication.
A 30-year old woman was presented to the emergency room with marked lethargy and fever. Her physical examination showed an acneiform eruption on the face. Blood biochemistry showed a high chloride level and a negative anion gap. High blood bromide level measurements on an ion-selective electrode was noted later to cause spurious hyperchloremia with a negative anion gap. After receiving saline hydration and diuretic treatment, her serum chloride returned to normal range on hospital day nine. Slow resolution of her mental status occurred over 2 months. Her skin lesions disappeared about 5 months later. In conclusion, in face of an unusual high chloride level and a negative anion gap in a patient of long-term use of over-the-counter (OTC) agents, bromide intoxication should be included in the differential diagnosis.