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During 1984-1992 162 patients with post-sternotomy sternal wound infections were treated. Between 0.4-5% of these undergoing sternotomy suffer from this complication which carries a mortality of about 50% when treated by conventional, nonsurgical methods. 80% of our patients had undergone aortocoronary bypass surgery and 11% valve replacement. Major risk factors identified for postoperative infection were prolonged mechanical ventilation, prolonged extracorporeal bypass, smoking, diabetes, obesity and chronic lung disease. Of 152 patients who underwent surgery, 35 had recurrent infections, especially during the first years of the study. 10 were managed by conservative methods. Reconstruction of the chest wall was performed in 125, using pectoralis major flaps (74 cases), rectus abdominis muscle flaps (53), myocutaneous flaps (5) and omental flap (1). Our series demonstrates the importance of a comprehensive, multi-disciplinary approach in evaluating and stabilizing these often critically ill patients. Computed tomography together with sinography have proven to be of major importance in diagnosing the location and extent of sternal wound infections. Strict adherence to antibiotic protocols, radical debridement of infected bone and soft tissues and subsequent reconstruction with muscle flaps has enabled us to reduce recurrent infection and improve morbidity and mortality rates.
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PMID:[Our experience with diagnosis, evaluation and treatment of poststernotomy sternal wound infections]. 781 50

Although the frequency of community-acquired pneumonia caused by Streptococcus pneumoniae continues to be high, studies show that Mycoplasma pneumoniae, Chlamydia pneumoniae, or Legionella pneumophila are the etiologic agents in 20% to 40% of community-acquired pneumonia in adults. The clinical presentation of pneumonia caused by these organisms may be indistinguishable from pneumonia due to S pneumoniae. Separation of cases of pneumonia due to S pneumoniae as typical and that caused by M pneumoniae, C pneumoniae, or L pneumophila as atypical is unwarranted and unhelpful in planning therapy. As many as 35% to 50% of patients do not have an etiologic agent identified. Community-acquired pneumonia can have high morbidity and mortality in patients who are older, have underlying lung disease, diabetes mellitus, or other comorbid conditions, or who have decreased immune function regardless of the specific etiologic agent. In choosing appropriate empiric antimicrobial therapy in hosts who are not immunocompromised, erythromycin and other macrolide antibiotics have the advantage of being effective against a wide range of pathogens likely to be encountered, including S pneumoniae, M pneumoniae, and L pneumophila, and of having some benefit against C pneumoniae. In other patients, the selection of antibiotic therapy can be based on age, clinical suspicion, epidemiologic data, and laboratory test results. Antimicrobial therapy can be directed at specific organisms when and if they are identified.
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PMID:Community-acquired pneumonia in adults. 781 49

Age related cataract is the most common cause of blindness in the world. Most of these patients are elderly and are likely to have various associated systemic diseases. Higher mortality has been reported in patients undergoing cataract surgery. In order to determine the prevalence of associated systemic disease, we carried out a large eye camp based study in 6103 age related cataract patients. Seventeen percent of our patients had systemic problems. Pulmonary disease was seen in 4.3%, cardiovascular disease and hypertension in 4.1%, diabetes mellitus in 3.8%, skin disorder in 1.4%, orodental disease requiring tooth extraction in 3%, and other diseases were seen in 0.4% of the cases. Seventy eight patients (1.27%) had significant systemic complications post-operatively, 46% of whom required hospitalization in a tertiary care center. Thus, all patients undergoing cataract surgery should be evaluated for associated systemic diseases to prevent morbidity and mortality in the preoperative, operative and postoperative period.
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PMID:Systemic diseases in age related cataract patients. 785 16

The upper limits of normal blood pressure have been considered to be 139 mmHg systolic and 89 mmHg diastolic for adults, but these values are not necessarily applicable to the elderly. This report presents blood pressure values of healthy persons aged 65 to 94 and estimates the upper limits of normal blood pressure in the elderly based on follow-up studies. The Blood Pressure Subgroup of the Study on Reference Values of Laboratory Tests in Elderly Subjects defined inclusion criteria for the healthy elderly as follows: (1) persons aged 65 to 94, (2) persons not complicated with cardiovascular diseases, (3) persons capable of living and walking freely, (4) persons without dementia, (5) persons without anemia, liver disease, renal failure, diabetes mellitus on drug treatment, lung disease, valvular disease or marked arrhythmias, (6) persons without neuromotor disease. The subgroup collected 2008 persons who fulfilled the criteria. Of the 2008 persons, 663 were not taking antihypertensive drugs, had body weight within an average Body Mass Index +/- standard deviation and had no abnormalities on ECG. The 663 persons were considered to be a group of most the normal elderly. Blood pressure values in this group were 133.3 +/- 18.9/77.0 +/- 10.6 mmHg for males (N = 318) and 134.3 +/- 18.7/75.7 +/- 10.2 mmHg for females (N = 345). Follow-up studies carried out by some members of the Blood Pressure Subgroup suggested that the upper limits of the normal blood pressure were 140 to 159 mmHg systolic and 80 to 89 mmHg diastolic for the elderly.
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PMID:[Reference values of laboratory tests in elderly subjects--blood pressure]. 804 Oct 19

A 59-year-old woman with diabetes and rheumatoid arthritis was given prednisolone following the diagnosis of rheumatoid lung disease. She developed fever and bloody sputum, and chest X-ray showed a massive shadow in the right lower lung field. Chest CT revealed a giant massive shadow with unclear margin in the right posterior lower lobe. With enhancement, a round low density area appeared in the shadow. Aspergillus hyphae were detected from a bronchial brushing specimen. Pulmonary aspergillosis was diagnosed administration of anti-fungal agents was commenced but the improvement was not satisfactory. Surgical resection, which may be curative, was subsequently performed. The resected lung contained an aspergillus ball formation within an enlarged bronchus, that is, a bronchial aspergilloma, surrounded by widespread inflammatory cell infiltration. Most pulmonary aspergillomas are of the "colonization type", but in our case progression to subacute process occurred according to the extent of our patient's immunological reaction. For the treatment of localized pulmonary aspergillosis, our results suggest that surgery is recommended.
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PMID:[Successful surgery for pulmonary aspergillosis progressing to subacute process]. 812 Oct 95

Tuberculosis killed 1 of every 150 persons in the general population in cities such as London, Stockholm, New York, Hamburg, Taipei, and Tokyo in the late 18th, early 19th, and late 19th century. Presently, the level is more than 100 times lower. The rate of decline has recently slowed or stopped. As tuberculosis declines in the community, it becomes a disease of subgroups who either have been previously infected (immigrants), whose immunity is reduced (AIDS, silicosis, or diabetes patients) or among whom transmission continues at a high rate (in urban slums). In Canada, 80% of all cases arise among high-risk groups in whom the notification rate is over 10 times higher than in the general community. The most important of these groups are immigrants. From 1970 to 1990, the proportion of cases among immigrants to Canada rose from 20% to 50% of all cases. The explanation for the rise in the proportion was the change in source of immigrants to Canada from mostly Europeans in 1965 to mostly Asians in 1975. The record of tuberculosis in developing countries has not been as positive as in industrialized countries due to the inability to achieve satisfactory treatment in patients with active tuberculosis. Recently, within cost-effective tuberculosis programs developed by the International Union Against Tuberculosis and Lung Disease in collaboration with Tanzania, Malawi, Mozambique, Benin and Nicaragua, and with Norway, Switzerland, and the Netherlands as donor partners, more than 70,000 cases of tuberculosis are diagnosed and treated per year, and more than 75% are cured. The strategy of fighting tuberculosis includes the proper education of health care workers in developing countries; in industrialized countries focusing attention on the high risk groups and the care and prevention of tuberculosis; and preventive chemotherapy.
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PMID:Strategies for the fight against tuberculosis. 818 65

Proxy respondents were interviewed for 96 decedents in an occupational cohort. A second respondent was interviewed for 59 decedents. Medical records were reviewed to validate questionnaire information. The percentage of respondents who answered "don't know" (non-response) to questions about medical condition ranged from 5% (cancer and heart disease) to 17% (ulcers). Non-response rates were lowest among spouses, intermediate among children, parents, and siblings, and highest among other relatives and friends. Among 41-55 pairs, depending on the condition, agreement between paired respondents was excellent (kappa > 0.75) for ulcers, cancer, diabetes, and lung disease. A higher percentage of medical records was obtained for decedents with spouse respondents and for decedents with more recent dates of death. Sixty percent or more of the medical records were obtained for patients with cancer (n = 30), heart disease (n = 26), stroke (n = 9), and liver disease (n = 10). The positive predictive value of the proxy respondent information for these conditions was 93, 81, 78, and 60%, respectively.
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PMID:Knowledge of medical history information among proxy respondents for deceased study subjects. 822 1

Ninety-four consecutive patients (60 men and 34 women; mean age 68.5 +/- 11.5 years) with acute myocardial infarction (MI) were investigated retrospectively, in order to evaluate the prevalence, clinical features, and short-term course of the atypical forms (symptoms other than chest pain). An atypical MI was found in 30 patients, with a prevalence of 32% (95% confidence limits 27-36%). It was most prevalent in women above sixty-five years old (P < 0.05). Abdominal pain, paroxysmal dyspnea, and pulmonary edema were the most frequent symptoms (33%, 17%, 13%, respectively). No differences were observed between typical and atypical MI in regard to risk factors (hypercholesterolemia, arterial hypertension, diabetes mellitus, cigarette smoking) and history of MI, cerebrovascular disease, peripheral vascular disease, or chronic lung disease. Significantly fewer patients with atypical MI had a history of angina pectoris (P < 0.05). No differences were observed in regard to previous medication, except for antiarrhythmic drugs, more often used by atypical patients (P < 0.05). Location and severity of MI (as judged by ECG and peak levels of creatine kinase in the serum) were similar in both subgroups, as were the complications (34% typical and 50% atypical) and death rate (12.5% and 16.7%, respectively). In conclusion, atypical MI is not less severe than typical. This emphasizes the need for a high suspicion index in many different clinical settings, but particularly (although not exclusively) in elderly females, in the presence of abdominal pain or otherwise unexplained paroxysmal dyspnea.
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PMID:Prevalence, clinical features, and acute course of atypical myocardial infarction. 828 84

Certainty of a diagnosis is not only important for the patient but also for morbidity studies. In the absence of a gold standard, agreement with diagnostic criteria is often the best approach in measuring the certainty of a diagnosis. The agreement with diagnostic criteria has been studied for 5 chronic diseases (hypertension, chronic ischemic heart disease, diabetes mellitus, chronic nonspecific lung disease and osteoarthritis) in 7 general practices with a total practice population of 23,534 persons. Agreement with diagnostic criteria is operationalized into 3 categories. For each chronic disease a diagnostic quality measure per general practitioner is computed. Retrospective data have been collected in the practices on 2295 diseases in 1989 patients. Two-thirds of the diagnoses were made in general practice. The agreement with the diagnostic criteria for the cases diagnosed in general practice is high, ranging from 96% true positive cases in diabetes mellitus to 58% in chronic nonspecific lung disease. The highest rate of false positive cases is 4%. On the level of general practitioners diagnostic qualities vary from 62 to 96% true positive cases for the different diseases. The variation in diagnostic quality between general practitioners is substantial. The prevalence rates for the 5 chronic diseases are lower after adjustment by only including true positive cases. Diagnoses of the 5 chronic diseases recorded in general practice are generally valid with low numbers of false positive cases.
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PMID:Validity of diagnoses of chronic diseases in general practice. The application of diagnostic criteria. 850 72

With the increasing number of elderly people in The Netherlands the prevalence of chronic diseases will rise in the next decades. It is recognized in general practice that many older patients suffer from more than one chronic disease (comorbidity). The aim of this study is to describe the extent of comorbidity for the following diseases: hypertension, chronic ischemic heart disease, diabetes mellitus, chronic nonspecific lung disease, osteoarthritis. In a general practice population of 23,534 persons, 1989 patients have been identified with one or more chronic diseases. Only diseases in agreement with diagnostic criteria were included. In persons of 65 and older 23% suffer from one or more of the chronic diseases under study. Within this group 15% suffer from more than one of the chronic diseases. Osteoarthritis and diabetes mellitus are the diseases with the highest rate of comorbidity. Comorbidity restricts the external validity of results from single-disease intervention studies and complicates the organization of care.
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PMID:Comorbidity of chronic diseases in general practice. 850 73


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