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101.
Jens Jung Armin Heisel Bernhard Butz Roland Fries Hermann Schieffer Dietmar Tscholl Hans-Joachim Schfers 《Clinical cardiology》1997,20(4):341-344
Background and hypothesis: Heart rate variability (HRV) is an accepted tool for the assessment of cardiovascular autonomic tone. There are no sufficient data concerning its application to patients with severe aortic valve disease (AVD) requiring cardiac surgery. Methods: It was the aim of this study to examine HRV and its physiologic correlates in patients with severe aortic valve disease requiring cardiac surgery. The correlates of time domain indices of HRV obtained from 24-h Holter electrocardiographic recordings were analyzed in 36 consecutive patients (23 men and 13 women, mean age 62 ± 11 years) with AVD prior to cardiac surgery (aortic stenosis: 17 patients, aortic valve regurgitation: 3 patients, combined aortic valve disease: 16 patients). Results: Low values of HRV were found in the entire study group: SDNN 96.8 ± 30.9 ms, SDNNI 39.3 ± 14.4 ms, SDANN 86 ± 28.9 ms, and RMSSD 30 ± 18.1 ms. In a univariate analysis, there was no significant correlation between the time domain measures of HRV and age, gender, medication, left ventricular ejection fraction, peak aortic pressure gradient, fraction of aortic valve regurgitation, and left ventricular mass assessed by echocardiography. Patients in advanced functional classes of heart failure [New York Heart Association (NYHA) III or IV] had significantly lower values for SDNN (83.8 ± 33.6 vs. 107.3 ± 24.7 ms; p<0.05) and SDANN (72.7 ± 29.4 vs. 96.6 ± 24.3 ms; p<0.05) than patients in NYHA class I or II. Reassessment of HRV 1 week after aortic valve replacement was performed in 17 patients and showed a significant further decrease of SDNN (102.4 ± 29.7 vs. 61.5 ± 23.5 ms; p<0.001), SDNNI (40.7 ± 13.6 vs. 23.4 ± 12.4 ms; p<0.001) and SDANN (91.8 ±29.2 vs. 54.2 ± 22.8 ms;p<0.001). Conclusion: Patients with AVD requiring cardiac surgery reveal reduced time domain indices of HRV. This observation is pronounced in patients with a progressed clinical class of heart failure, whereas hemodynamic and echocardiographic parameters seem to have no significant influence on HRV parameters in this population. In addition, there is evidence of a further reduction of HRV time domain indices 1 week after uncomplicated aortic valve replacement. 相似文献
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105.
Yeganeh Memari Maryam Mohajerfar Anahid Armin Fatemeh Kamalian Vida Rezayani Elaheh Beyabanaki 《Journal of prosthodontics》2019,28(2):e536-e544
All‐ceramic crowns for teeth are widely used for restoring teeth. Stone casts have been made from conventional impression methods; however, newer techniques have made this process easier and faster for both the patient and the practitioner. Laboratory CAD/CAM technology mainly involves scanning the die stone, while other systems permit impression or intraoral scanning; however, one major concern remaining is the marginal fit of the restorations made using different methods for recording the prepared teeth. This study aims to review studies evaluating the marginal fit of all‐ceramic crowns manufactured by CAD/CAM systems using different extra‐ and intra‐oral scanners compared to conventional impressions. 相似文献
106.
Schollbach Julia Kircher Stefan Wiegering Armin Anger Friedrich Rosenwald Andreas Germer Christoph-Thomas Löb Stefan 《International journal of colorectal disease》2020,35(2):365-370
International Journal of Colorectal Disease - The local immune contexture in patients with locally advanced rectal cancer (LARC) has important prognostic value after neoadjuvant chemoradiation and... 相似文献
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Cancer Prevention and Screening for Older Adults: Part 1. Lung,Colorectal, Bladder,and Kidney Cancer
Patrick P. Coll MD AGSF CMD Beatriz Korc-Grodzicki MD PhD AGSF Benjamin T. Ristau MD MHA Armin Shahrokni MD MPH Alexander Koshy MD Olga T. Filippova MD MSc Imran Ali MD MS MPH 《Journal of the American Geriatrics Society》2020,68(10):2399-2406
The incidence of most cancers increases with age. Cancer is the second most common cause of death in older adults after cardiovascular disease. Many common cancers in older adults can be prevented from occurring or can be identified at an early stage and treated effectively. The prevention and identification of cancer in its early stages, in an attempt to reduce discomfort and disability associated with advanced cancer and cancer treatment, is also a priority. Overscreening for cancer in older adults can lead to unnecessary diagnostic testing and unnecessary treatment. Both older adults and their healthcare providers need guidance on the appropriate use of cancer prevention and screening interventions. This first of a two-part review addresses special considerations regarding cancer prevention for adults aged 65 and older. Screening decisions and the impact of limited life expectancy and an older adult's ability to tolerate cancer treatment are also addressed. Guidance is provided regarding the prevention and early identification of lung, colorectal, bladder, and kidney cancer in older adults. The prevention of breast, prostate, and female urogenital cancers are addressed in Part 2. J Am Geriatr Soc 68:2399–2406, 2020. 相似文献
109.
Christoph Loenarz Rok Sekirnik Armin Thalhammer Wei Ge Ekaterina Spivakovsky Mukram M. Mackeen Michael A. McDonough Matthew E. Cockman Benedikt M. Kessler Peter J. Ratcliffe Alexander Wolf Christopher J. Schofield 《Proceedings of the National Academy of Sciences of the United States of America》2014,111(11):4019-4024
110.
Maximiliano J. Katz Julieta M. Acevedo Christoph Loenarz Diego Galagovsky Phebee Liu-Yi Marcelo Pérez-Pepe Armin Thalhammer Rok Sekirnik Wei Ge Mariana Melani María G. Thomas Sergio Simonetta Graciela L. Boccaccio Christopher J. Schofield Matthew E. Cockman Peter J. Ratcliffe Pablo Wappner 《Proceedings of the National Academy of Sciences of the United States of America》2014,111(11):4025-4030