This paper aims to diagnose the information culture of the university administration. Although university administrative work is commonly associated with bureaucracy, it is a bureaucracy of people in ...which employees demonstrate a set of competitive group information behavior focused on knowledge sharing and information use in day-to-day tasks. A group of 345 respondents, representing office staff from three institutions in Poland, answered the survey related to information culture. The research framework included 16 information behaviors, grouped by four levels of information and knowledge management and four types of information culture. The results were examined using statistical packages to perform the Kruskal-Wallis H test, Spearman’s rank correlation coefficient, and ordinal/linear regression analysis. Professional Bureaucracy culture is the dominant characteristic of the information behavior of university administrations, but its functioning is supported by three parallel information cultures included in the research model. The main limitation of the study is that it covers only lower-level employees’ information practices. The applied scale, based on professional stratification within the university administration, is highly sensitive regarding different institutional contexts covered in the information culture diagnosis. To support the development of Professional Bureaucracy, it is necessary to support internal openness of behavior (socialization), internalization of knowledge, and external networking.
In a randomized trial, 3102 patients undergoing CABG were assigned to receive bilateral or single internal-thoracic-artery grafts. There was no significant between-group difference in all-cause ...mortality at 10 years.
The optimal surgical strategy (repair vs replacement) for patients with secondary mitral (MV) regurgitation is questionable.
Patients who underwent MV repair or replacement for functional or ischemic ...mitral regurgitation between 2006 and 2017 were identified in Polish National Registry of Cardiac Surgery Procedures. Patients, who underwent additional procedures other than coronary artery bypass grafting or tricuspid valve surgery, as well as redo or emergency cases, were excluded. The long-term survival was verified based on National Health Fund registry. The survival was compared between MV repair and replacement both in the whole cohort and after propensity score matching. The Cox regression was used to seek for independent predictors of survival.
Of 7633 identified patients, 1793 (23%) underwent MV replacement and 5840 (77%) underwent MV repair. Coronary artery bypass surgery was performed together with MV repair in 3992 (69%) patients and together with MV replacement in 915 (52%) patients (P < .001). Tricuspid valve surgery was added to 1393 (24%) MV repairs and to 561 (32%) MV replacements (P < .001). The crude actuarial 5-year survival was 71% (95% confidence interval CI, 70%-72%) in the repair group and 66% (95% CI, 63%-68%) in the replacement group (P < .001). MV replacement was an independent predictor of mortality (hazard ratio, 1.32; 95% CI, 1.17-1.49) (P < .001) in Cox regression modeling. In the propensity-matched cohort (1105 pairs), the long-term mortality was also significantly higher in the replacement group (hazard ratio, 1.24; 95% CI, 1.06-1.45; P = .008).
Repair of secondary mitral regurgitation has an associated survival benefit compared with MV replacement.
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Abstract
OBJECTIVES
This study presents the results of 17 years of experience with bicuspid aortic valve (BAV) repair and the analysis of factors associated with repair failure and early ...echocardiographic outcome.
METHODS
Between 2003 and 2020, a total of 206 patients mean age: 44.5 ± 15.2 years; 152 males (74%) with BAV insufficiency with or without aortic dilatation underwent elective aortic valve repair performed by a single surgeon with a mean follow-up of 5 ± 3.5 years. The transthoracic echocardiography examinations were reported.
RESULTS
There were no deaths during the hospital stay, and all but 1 patient survived the follow-up period (99.5%). Overall, 10 patients (5%) developed severe insufficiency and 2 (1%) developed aortic dilatation requiring reoperation. Freedom from reoperation at 7 years reached 91.8%. Type 2 BAV configuration hazard ratio (HR) 3.9; 95% confidence interval (CI): 1.01–60; P = 0.049, no sinotubular junction remodelling (HR 7; 95% CI: 1.7–23; P = 0.005), no circumferential annuloplasty (HR 3.9; 95% CI: 1.01–64; P = 0.047) and leaflet resection (HR 5.7; 95% CI 1.2–13. P = 0.017) have been identified as a risk factor of redo operation. Parameters of the postoperative left ventricle reverse remodelling improved significantly early after the operation and later at 2 years evaluation.
CONCLUSIONS
The repair of BAV offers good short- and mid-term results providing a significant reverse left ventricular remodelling. Type 0 BAV preoperative configuration, circumferential annuloplasty and sinotubular junction remodelling are associated with better repair durability.
It is better to be readmitted than dead Deja, Marek A., MD, PhD
The Journal of thoracic and cardiovascular surgery,
08/2017, Letnik:
154, Številka:
2
Journal Article
Patients with CAD and LV dysfunction were assigned to either medical therapy alone or medical therapy plus CABG. At 5 years, there was no significant difference between the two study groups in the ...rate of death from any cause.
It is estimated that 5.8 million patients in the United States
1
and 15 million in Europe
2
have heart failure. Coronary artery disease is the most common substrate for heart failure in industrialized nations.
3
However, the role of coronary-artery bypass grafting (CABG) in the treatment of patients with coronary artery disease and heart failure has not been clearly established.
In three landmark clinical trials in the 1970s, a total of 2234 patients with chronic stable angina were randomly assigned to undergo CABG or receive medical therapy alone.
4
–
6
The findings from these trials led to recommendations supporting the use of CABG . . .
Abstract
OBJECTIVES
The aim of this study was to compare the outcomes of tricuspid aortic valve (TAV) and bicuspid aortic valve (BAV) repair.
METHODS
We assessed mortality, freedom from reoperation ...and the rate of aortic valve regurgitation recurrence. Mortality in both groups was compared with expected survival, and risk factors for reoperation were identified.
RESULTS
From January 2010 to April 2020, a total of 368 elective aortic valve repair procedures were performed, including 223 (60.6%) in patients with TAV. The perioperative mortality was 0.7% in the BAV group and 3.6% in the TAV group (P = 0.079). Estimated survival at 5 years in the BAV versus TAV group was 97 ± 3% vs 80 ± 6%, respectively (P < 0.001). Freedom from reoperation at 5 years in the TAV versus BAV group was 96 ± 3% vs 93 ± 4%, respectively (P = 0.28). Grade 2 or more aortic valve regurgitation was noted in 9.9% of BAV patients and 11% of TAV patients (P = 0.66). Reoperation was predicted by cusp perforation hazard ratio 15.86 (4.44–56.61); P < 0.001, the use of pericardial patch hazard ratio 8.58 (1.96–37.53); P = 0.004 and aortic valve annulus diameter >27.5 mm hazard ratio 3.07 (0.99–9.58); P = 0.053.
CONCLUSIONS
BAV repair is as durable as TAV repair. BAV is not a predictor of a higher rate of reoperations. BAV repair yields survival comparable to expected. Cusp perforation, aortic valve annulus diameter >27.5 mm and the use of pericardial patch adversely impact long-term outcome of aortic valve repair.
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