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We have evaluated three patients with Haemophilus parainfluenzae endocarditis. Two of the three had underlying heart disease. All presented with fever, chills and malaise of less than two weeks' duration. Mitral valve involvement led to congestive heart failure in two of three cases. Treatment proved difficult, despite normally adequate dosages of antibiotics to which the pathogens were sensitive in vitro (ampicillin, 12-20 gm/dag; gentamicin, 3-5 mg/kg/day). Two patients were cured; one died. There was a suggestion of an inverse correlation between vegetation mass and favorable clinical response. Review of the English literature disclosed 22 documented cases of H parainfluenzae endocarditis, including 12 in the antibiotic era.
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PMID:Bacterial endocarditis due to Haemophilus parainfluenzae. 83 83

Two-dimensional echocardiography has had a significant impact on and is considered the technique of choice for the diagnosis and management of infective endocarditis. Over a thirty-six month period, 106 patients were evaluated by echocardiography for the possibility of endocarditis. The diagnosis of endocarditis was determined by strict clinical and laboratory criteria. All clinical histories, blood cultures, echocardiograms, and autopsy results were reviewed. Five echocardiograms were technically inadequate, resulting in a study population of 101 patients. The age of the patients ranged from forty-five days to eighty-eight years (mean fifty-seven years). The clinical manifestations of endocarditis included fever (83%), chills (60%), congestive heart failure (25%), and splenomegaly (18%). Twelve patients had preexisting valvular or congenital heart disease. Gram-positive cocci were the most common microorganisms. Complications included mitral regurgitation, subarachnoid hemorrhage, renal infarction, stroke, and a pulmonary embolus. The patients were divided into two groups: Group I consisted of 36 patients with definite vegetations by echocardiography, and Group II had 65 patients with no vegetations. In Group I, acute infective endocarditis was present in 35 patients, whereas only 4 patients had endocarditis in Group II. The sensitivity of two-dimensional echocardiography for detecting endocarditis was 90%. The specificity was 98%. The predictive accuracy for a positive test was 97%, and the predictive accuracy for a negative test was 94%. Thus, two-dimensional echocardiography appears to have a high sensitivity, specificity, and predictive value in the evaluation of patients with suspected endocarditis.
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PMID:The role of two-dimensional echocardiology in the diagnosis of infective endocarditis [corrected]. 186 15

Concomitant pneumonia and influenza constitute the leading infectious cause of death in the elderly and the fourth most common cause of death overall. The presence of concomitant illness and delays in diagnosis contribute to significant mortality from this disease in the elderly; senescence of the immune system seems less important in predisposition to pneumonia than the presence of concomitant illness. Delay in diagnosis is frequently secondary to the atypical presentations of pneumonia in the elderly. The usual symptoms of fever, chills, rigors, and sputum production that are present in young adults all may be absent; confusion may be the only presenting symptom. Tachypnea is frequent, but the physical examination, in addition to often being technically difficult, is not sufficiently sensitive in making a diagnosis. Leukocytosis is common, but by no means specific. Chest roentgenograms frequently show incomplete consolidation and findings are difficult to distinguish from other diseases of the elderly, such as congestive heart failure, atelectasis, pulmonary embolism, and malignancy. Therefore, clinical diagnosis requires a high index of suspicion despite atypical clinical manifestations.
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PMID:Clinical features of pneumonia in the elderly. 209 72

Mitoxantrone is a new effective antineoplastic agent with activity against a wide range of tumors. Compared with the anthracycline drugs doxo- and daunorubicin, it exhibits a clearly lower toxicity and, most importantly, a reduced cardiotoxicity. The analysis of the side-effects recorded after accidental overdosage of the drug gives additional insight into its tolerability. Here we describe our observations in three patients who inadvertently received 100 mg m-2 (two pts) and 183 mg m-2 (one pt) as single slow bolus injections. The main side-effects were moderate nausea and vomiting, shaking chills, and profound but reversible neutro- and thrombocytopenia. There was no immediate cardiac toxicity. One patient with extensive previous daunomycin exposure developed congestive heart failure after 4 months. Two patients were not evaluable for late cardiac complications because of early death due to tumor progression.
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PMID:Accidental overdose of mitoxantrone in three patients. 255 63

Recombinant human gamma interferon (Biogen) and vinblastine were administered in a phase I study. Side effects included fever and chills, nausea and vomiting, acute symptomatic hyponatremia, reversible myelosuppression, hepatitis, transient hypotension, congestive heart failure, renal insufficiency, and nonselective proteinuria. In most patients, additional host factors contributed to these toxic effects. Side effects occurred despite dose reduction; therefore, protocol accrual was prematurely closed. No correlation between serum concentrations and toxicity was noted. Median serum vinblastine concentration was 1.04 ng/ml; median serum interferon concentration was 17.3 IU/ml.
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PMID:Hyponatremia and other toxic effects during a phase I trial of recombinant human gamma interferon and vinblastine. 309 Dec 46

Based on the findings of 50 patients with infective endocarditis, 37 affecting the aortic, six the mitral and seven both the aortic and mitral valves, in addition to analysis of predisposing factors, prominent signs and symptoms distinctive for the clinical entity were assessed (Tables 1 to 3). Preexistent conditions such as aortic valve lesions including bicuspid aortic valve as well as mitral valve lesions including mitral valve prolapse were proven in 66%. Factors which may have compromised host defense mechanisms such as cachexia and chronic alcohol or intravenous drug abuse were present in isolated cases. In 38% of the patients, a diagnostic or therapeutic manipulation, suspected to have given rise to the bacteremia, antedated the onset of endocarditis. Malaise, fatigue and chills were the most frequent symptoms (Table 4). Fever and cardiac murmurs were observed in all patients, anemia and bacteremia in 74% of the patients, respectively (Tables 4 to 6). In blood cultures, the most common microorganisms were found to be hemolytic and nonhemolytic streptococci accounting for 65% of positive findings, followed by enterococci and gram-negative bacteria each with 14% respectively (Table 6). Congestive heart failure predominated among cardiac complications with its occurrence in 84% of the patients. Valvular ring or myocardial abscess, aortic or sinus of Valsalva aneurysm, occasionally with perforation, were found in 24% of our patients. Coronary embolism was documented in 6%; infection-associated pericarditis was observed only rarely (Table 7). Extracardiac complications involved the skin, central nervous system, spleen and kidneys, respectively, in 20 to 30% of the patients. Complications afflicting the eyes, lungs, gastrointestinal tract and the musculo-skeletal system were seen with a lesser frequency of 0 to 12% (Table 8). The diagnosis of infective endocarditis, rendered highly-probable by the constellation of fever, cardiac murmur, bacteremia and anemia, necessitates, however, confirmation through cardiac examinations. In this respect, electrocardiographic and radiologic findings are of limited value, although they may be useful in the detection of cardiac complications. In 6% of the patients, positive criteria for myocardial infarction were indicative of coronary embolism and, i 30%, atrioventricular or fascicular block suggested the presence of abscess formation (Table 9). As radiologic evidence of heart failure, 74% of the patients were found to have pulmonary vascular congestion (Table 10).(ABSTRACT TRUNCATED AT 400 WORDS)
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PMID:[Detection and evaluation of infectious endocarditis]. 664 98

DT, a 63-year-old white male with insulin-dependent diabetes mellitus and severe peripheral vascular disease, was admitted with a five-day history of vague abdominal pain and diarrhea. On the day of admission he vomited three times, was noted to have a bloody stool, and came to the emergency room. DT denied hematemesis, fever, or chills. He had bilateral leg amputations and had sustained three myocardial infarctions, the last one 15 months before this admission. He had never experienced symptoms of abdominal angina. Of significance was his history of congestive heart failure, mitral regurgitation, and atrial fibrillation. His medications on admission included digoxin 0.25mg per day, furosemide 40mg per day, and NPH insulin 15 units per day. On admission to the hospital his oral temperature was 38 degrees C, pulse was 90/min, respiratory rate was 24/min, and blood pressure was 134/80mmHg. Abdominal examination revealed a distended abdomen with hypoactive bowel sounds and mild tenderness. Chest x ray revealed cardiomegaly. The electrocardiogram demonstrated atrial fibrillation. A plain film of the abdomen was positive for gallstones and edema of the bowel wall (thumb-printing). Laboratory results included blood urea nitrogen 48mg%, creatinine 1.2mg%, hemoglobin 18g/dl, and hematocrit 52.9%. White blood cell count was 11,900 cells/cc with 33% polymorphonuclear leukocytes, 47% bands, 8% lymphocytes, 11% monocytes, and 1% atypical lymphocytes. The prime considerations for differential diagnosis were mesenteric ischemia and infectious gastroenteritis. While it was appreciated that mesenteric ischemia, if present, might warrant surgical intervention, the risk of anesthesia itself in this patient was felt by his attending physicians to exceed 30%. Furthermore, the clinical findings were only "suggestive" of mesenteric eschemia. They were certainly not "diagnostic." In view of this dilemma, a consultation with the Division of Clinical Decision Making was requested.
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PMID:Abdominal pain, atherosclerosis, and atrial fibrillation. The case for mesenteric ischemia. 716 38

A fifty-six-year-old woman was admitted to Osaka Rosai hospital because of dyspnea, chills, and fatigue. The patient was diagnosed by transthoracic echocardiography as having congestive heart failure due to severe biatrioventricular valve regurgitation, and cardiac surgery was proposed. Preoperative transesophageal echocardiography (TEE) revealed a dilatation of the coronary sinus (CS), a right-sided hemiazygos vein (R-AZ), and another great vessel lying between the CS and the R-AZ. Magnetic resonance imaging (MRI) was also performed, and this showed a persistent right superior vena cava (PRSVC) entering the left atrium via the dilatated CS. However, the site of connection between the R-AZ and the PRSVC could not be detected by MRI because of inadequate slice acquisition. Each method has its limitations, particularly with regard to visualizing the extracardiac vascular system. Therefore, the authors demonstrated that the combination of TEE and MRI might be more useful than each alone, and the combination is as a valuable method as digital subtraction angiography for the diagnosis of extracardiac venous anomalies.
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PMID:Transesophageal echocardiography combined with magnetic resonance imaging for detecting venous anomalies in dextrocardia. A case report. 778 97

Lidocaine-induced seizures have been reported after topical administration. A 30-year-old, 48-kg women with acquired immunodeficiency syndrome, chronic end-stage renal failure, anemia, congestive heart failure (CHF), cardiomyopathy, and increased liver function tests was admitted to the hospital with fever, chills, and dry cough. Bronchoscopy was performed to rule out Pneumocystis carinii pneumonitis; the patient experienced seizure activity after administration of a total dose of topical lidocaine 300 mg. Plasma drug concentration measured shortly after seizure, and at 4 and 22 hours after seizure were 12.0, 7.6, and 1.4 mg/L, respectively. A direct correlation exists between clinical symptoms and blood level of lidocaine; as the level increases to 8-12 mg/L the probability of seizure increases. The extent of absorption and bioavailability after airway administration depends on tissue vascularity, sites and techniques of application, patient's disease state, and, most important, the dose/unit body weight. The lidocaine dose should be titrated slowly and patients monitored for altered mental status. The dose often has to be decreased empirically in patients with liver disease or CHF. Efforts should be made to deliver minimum amounts of the drug to the lower respiratory tract, since its pharmacokinetics at that site are similar to those with intravenous administration.
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PMID:Seizure after lidocaine for bronchoscopy: case report and review of the use of lidocaine in airway anesthesia. 843 71

In the past decade, cases of babesiosis in humans have been reported with increasing frequency, especially in the northeastern United States. Babesia microti (in the United States) and bovine strains (in Europe) cause most infections in humans. Most cases are tick-borne, although cases of transfusion-associated and transplacental/perinatal transmission have also been reported. Factors associated with more severe disease include advanced age, previous splenectomy and immunodeficient states. Symptoms include high fever, chills, diaphoresis, weakness, anorexia and headache. Later in the course of the illness, the patient may develop jaundice. Congestive heart failure, renal failure and acute respiratory distress syndrome are the most common complications. Therapy using the combination of quinine sulfate and clindamycin was the most commonly used treatment; however, atovaquone suspension plus azithromycin was recently reported an equally effective and less toxic therapy. Exchange transfusion, together with antibabesial chemotherapy, may be necessary in critically ill patients.
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PMID:When to suspect and how to monitor babesiosis. 1138 11


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