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121.
Francis C White Percy J Russell Muhammad Ashraf Paul Wolf Lyall Higginson David Jones Colin M Bloor 《American heart journal》1981,102(4):686-697
Coronary artery narrowing (CAN), which reduced resting coronary blood flow (BF) by 50%, was induced in 10 conscious dogs and was maintained for 4 hours. Five additional dogs (group 1) with complete coronary artery occlusion were compared to the dogs with CAN. serum isoenzymes of creatine phosphokinase (CK) and latate dehydrogenase (LD) were monitored hourly in all groups. After 36 hours, samples were obtained for regional myocardial BF, quantitative histology, and quantitative ultrastructural (EM) morphology. Six dogs with CAN had small infarcts (MI) of less than 1 gm and persistent myocardial cell injury (group 2). The other four dogs with CAN had only persistent myocardial cell injury by ultrastructural criteria (group 3). Peak serum CK activities in groups 2 and 3 were similar, as were MI sizes calculated from serum CK and myocardial depletion. MB CK was of diagnostic value in group 1 but not in groups 2 and 3. The ratio of had diagnostic value in all three groups. MI size by enzyme estimates was consistently higher than planimetered MI size at autopsy in both groups 1 and 2. All three groups had significant amounts of ultrastructural damage outside of histologically demonstrated MI. These findings suggest that (1) gross and histologic MI size determination of 36 hours after ischemia underestimate extent of damage, and (2) ultrastructural cell changes cause significant release of CK and LD in coronary disease (CAD). 相似文献
122.
Ahmad S. Azhar Zaher F. Zaher Noran M. Abu-Ouf Jameel Al-Ata Sara Taisir A. Alsheblie 《Journal of the Saudi Heart Association》2018,30(1):28-39
Objective
To assess the implementation and efficiency of medical education among the caregivers of children with congenital heart disease (CHD) and to investigate its success factors.Material and method
A cross-sectional study was conducted from February 2014 to March 2014 in a tertiary healthcare center. Study included 120 caregivers of children with CHD visiting the Paediatric Cardiology Clinic that included 93% mothers, aged 31.72 ± 6.67 years, 38.3% Saudi citizens and 45.0% had a high educational level. Caregivers were interviewed through a semi-structured questionnaire that included socio-demographic data of participants and demographic and clinical data of patients; awareness about the diagnosis and self-assessed understanding of thedisease; disease dimensions explained, educational material used andefficacy of whole medical education received in alleviating caregivers' anxiety.Results
Of children who had CHD, around 42.5% were males aged 5.65 ± 3.99 years and 37.3% had ventral septal defect, 14.4% had atrial septal defectand 19.5% had a complex CHD. Study results showed that 83.3% of caregivers were aware of the correct diagnosis and 64.2% had good understanding of the nature and effect of the disease. Frequently explained disease dimensions were impact on child's growth (65.8%), complications (57.5%), and outcomes (55.0%). Least frequently explained dimensions were those related to infective endocarditis (IEC) including risk factors (15.8%), prophylaxis (17.5%), complications (19.2%) and symptoms (22.5%). The whole medical education received was efficient to enable good understanding of the disease and alleviate anxiety in 70.8% and 62.5% of the cases, respectively. Time dedicated to educate, use of illustrating educational materials, explaining various disease dimensions (aetiology, complications, prognosis, long-term management, etc.) and the number of dimensions explained were all significant predictors for both good understanding of the child's disease and anxiety relief among caregivers. 相似文献123.
Colbert RA Deodhar AA Khan MA Lories RJ Maksymowych WP Reveille JD Ritchlin CT Rosenbaum JT Targan SR Weisman M Clegg DO;SPARTAN Group 《The Journal of rheumatology》2008,35(7):1398-1402
OBJECTIVE: The Spondyloarthritis Research and Therapy Network (SPARTAN; www.spartangroup.org) was founded in 2003 by a group of North American clinicians and researchers to promote research, education, and treatment of spondyloarthritis (SpA). In past years, it has produced and disseminated United States-specific modifications of the ASsessments in Ankylosing Spondylitis (ASAS) guidelines for the use of anti-tumor necrosis factor (TNF) therapy in AS1,2. SPARTAN held its fifth annual research meeting in September 2007 in Cleveland, Ohio. Highlights of the meeting included updates on current research in SpA, including epidemiology and genetics, bone formation and inflammation, biomarkers, activation of the IL-23/IL-17 axis, and animal models. A presentation was made on basic and clinical science of inflammatory bowel disease, and an educational pre-meeting conference was specifically designed for rheumatology fellows. 相似文献
124.
Yakoob J Jafri W Jafri N Khan R Islam M Beg MA Zaman V 《The American journal of tropical medicine and hygiene》2004,70(4):383-385
This study was designed to examine stool specimens of irritable bowel syndrome (IBS) patients for Blastocystis hominis, a common intestinal parasite. One hundred fifty patients were enrolled, 95 IBS cases and 55 controls. These patients provided a medical history, and underwent physical and laboratory evaluations that included stool microscopy and culture for B. hominis and colonoscopy. The 95 cases (51 males and 44 females) had a mean +/- SD age of 37.8 +/- 13.2 years. Stool microscopy was positive for B. hominis in 32% (30 of 95) of the cases and 7% (4 of 55) of the controls (P = 0.001). Stool culture was positive in 46% (44 of 95) of the cases and 7% (4 of 55) of the controls (P < 0.001). Stool culture for B. hominis in IBS was more sensitive than microscopy (P < 0.001). Blastocystis hominis was frequently demonstrated in the stool samples of IBS patients; however, its significance in IBS still needs to be investigated. Stool culture has a higher positive yield for B. hominis than stool microscopy. 相似文献
125.
Use of angiotensin-converting enzyme inhibitor therapy and dose-related outcomes in older adults with new heart failure in the community
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Rochon PA Sykora K Bronskill SE Mamdani M Anderson GM Gurwitz JH Gill S Tu JV Laupacis A 《Journal of general internal medicine》2004,19(6):676-683
OBJECTIVE: To evaluate the dose-related benefit of angiotensin-converting enzyme (ACE) inhibitor therapy among older adults with heart failure and to evaluate whether low-dose ACE inhibitor therapy is better than none. DESIGN: Observational cohort study. SETTING: Community-dwelling older adults in Ontario, Canada. PATIENTS/PARTICIPANTS: We identified 16539 adults 66 years or older who survived 45 days following their first heart failure hospitalization discharge. MEASUREMENT AND MAIN RESULTS: Multivariate techniques including propensity scores were used to study the association between the dose of ACE inhibitor therapy dispensed and 3 outcomes: survival, survival or heart failure rehospitalization, and survival or all-cause hospitalization at 1 year of follow-up. Logistic regression models explored the association between initial dose dispensed and subsequent dose reduction or drug cessation. Overall, 10793 (65.3%) of patients were dispensed ACE inhibitor therapy, with more than a third (3935; 36.5%) initiated on low-dose therapy. Relative to dispensing of low-dose ACE inhibitor therapy, nonuse was associated with increased mortality (hazard ratio [HR], 1.12; 95% confidence interval [CI], 1.02 to 1.22). Dispensing medium-dose therapy provided a benefit similar to low-dose (HR, 0.94; CI, 0.86 to 1.03) and dispensing of high-dose therapy was associated with improved survival benefit (HR, 0.76; CI, 0.68 to 0.85). Relative to dispensing of low-dose ACE inhibitor therapy, dispensing high-dose conferred a benefit (HR, 0.87; CI, 0.80 to 0.95) on the composite outcome of 1-year mortality or heart failure hospitalization and the composite outcome of 1-year mortality or all-cause hospitalization (HR, 0.87; CI, 0.81 to 0.93). Relative to those dispensed low-dose ACE inhibitor therapy, those initially dispensed high-dose therapy were twice as likely to have their subsequent dose reduced or the therapy discontinued (odds ratio, 2.36; CI, 2.07 to 2.69). CONCLUSION: Our findings suggest that when possible, older adults should be titrated to the higher doses of ACE inhibitor therapy evaluated in clinical trials. If older adults cannot tolerate higher doses, then low-dose ACE inhibitor therapy is superior to none. High-dose ACE inhibitor therapy is not as well tolerated as lower doses. 相似文献
126.
Vardhmaan Jain MD Ankur Kalra MD Muhammad Siyab Panhwar MD Agam Bansal MD Amy Nowacki PhD Kirtipal Bhatia MD Tanush Gupta MD Nichole L. Ineman MSN Safi U. Khan MD Amar Krishnaswamy MD Grant W. Reed MD Rishi Puri MBBS PhD Samir R. Kapadia MD Lars G. Svensson MD PhD Anmar Kanaa'N MD Joseph A. Lahorra MD 《Journal of the American Geriatrics Society》2021,69(5):1363-1369
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