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排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
992.
Amir H. Taghinia Joseph Upton Cameron C. Trenor Ahmad I. Alomari Anna P. Lillis Raja Shaikh Patricia E. Burrows Steven J. Fishman 《Journal of pediatric surgery》2019,54(3):562-568
Background
Central conducting lymphatic anomalies (CCLA) may cause chylous leaks and protein-losing enteropathy (PLE) owing to dysfunction of the central lymphatic channels. Most of the treatment strategies for these conditions are palliative and provide transient improvement.Methods
We treated 14 patients with intractable chylous leak and/or PLE using a novel technique of lymphaticovenous bypass of the terminal portion of the thoracic duct. Chylous leaks occurred in multiple different anatomic sites. All patients had CCLA and failure of thoracic duct emptying demonstrated by preoperative intranodal lymphangiography.Results
Five patients had complete resolution of symptoms, and two patients had partial improvement. There were no major complications. Of 5 patients with PLE, only one improved after lymphaticovenous bypass. Repeat traditional lymphangiography was performed in 4 patients who did not improve, demonstrating patency of the bypass in all cases with persistent sluggish drainage. One patient had repeat MR lymphangiography that did not show the thoracic duct well.Conclusions
Bypass of the terminal thoracic duct is a novel procedure that offers improvement and a chance of cure for some patients with devastating manifestations of CCLA who lack other effective therapeutic options.Level of evidence
IV. 相似文献993.
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996.
Frank Schwarz Anton Sculean Steven P. Engebretson Jürgen Becker Martin Sager 《Periodontology 2000》2015,68(1):168-181
The treatment of infectious diseases affecting osseointegrated implants in function has become a demanding issue in implant dentistry. Since the early 1990s, preclinical data from animal studies have provided important insights into the etiology, pathogenesis and therapy of peri‐implant diseases. Established lesions in animals have shown many features in common with those found in human biopsy material. The current review focuses on animal studies, employing different models to induce peri‐implant mucositis and peri‐implantitis. 相似文献
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Steven G. Chrysant 《Postgraduate medicine》2018,130(2):159-165
Systolic hypertension, especially isolated systolic hypertension (ISH) is very common in older subjects aged ≥ 65 years and is a major risk factor for cardiovascular disease (CVD), strokes, heart failure (HF) and chronic kidney disease (CKD). It is also, directly and linearly related with these complications irrespective of sex, or ethnicity, but it is worse with the advancement of age. Effective control of systolic blood pressure (SBP), is associated with significant reduction in the incidence of these complications. Currently, there is a debate about the optimal SBP control in view of the Systolic Blood Pressure Intervention Trial (SPRINT) showing beneficial cardiovascular (CV) effects of intensive SBP of < 120 mmHg in older patients. Also, the recently released blood pressure (BP) guidelines by the American College of Cardiology, the American Heart Association and the American Society of Hypertension (ACC/AHA/ASH) recommend a SBP reduction of < 130 mmHg. These SBP treatment recommendations are in contrast with the current (JNC VIII) committee of BP treatment guidelines, which recommend a SBP reduction < 150 mmHg for the same age of patients. All these different recommendations have created a debate regarding the optimal treatment targets for the systolic hypertension of the elderly patients. To gain more information a focused Medline search was conducted from 2010 to 2017 using the terms, systolic blood pressure, aggressive control, older subjects, treatment guidelines, and 37 pertinent papers were retrieved. The findings from these studies suggest a SBP reduction of < 140 mm Hg for persons aged ≥ 60 years, with an attempt for SBP reduction to ≤130 mm Hg in healthier subjects and hose with CVD, DM, and CKD. Care should be taken not to further reduce the SBP in older subjects if their DBP is ≤60 mmHg for the fear of J-curve effect. 相似文献
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Mathieu Van der Aerschot Faheema Mahomed-Asmail Herman Carel Myburgh Robert Henry Eikelboom 《International journal of audiology》2016,55(11):616-622
Objective: Evaluation of the Sennheiser HD 202 II supra-aural headphones as an alternative headphone to enable more affordable hearing screening. Design: Study 1 measured the equivalent threshold sound pressure levels (ETSPL) of the Sennheiser HD 202 II. Study 2 evaluated the attenuation of the headphones. Study 3 determined headphone characteristics by analyzing the total harmonic distortion (THD), frequency response and force of the headband. Study sample: Twenty-five participants were included in study 1 and 15 in study 2 with ages ranging between 18 and 25. No participants were involved in study 3. Results: The Sennheiser HD 202 II ETSPLs (250–16000?Hz) showed no significant effects on ETSPL for ear laterality, gender or age. Attenuation was not significantly different (p?>?0.01) to TDH 39 except at 8000?Hz (p?0.01). Maximum permissible ambient noise levels (MPANL) were specified accordingly. The force of the headband was 3.1N. THD measurements showed that between 500 and 8000?Hz intensities of 90?dB HL and higher can be reached without THD?>3%. Conclusion: Sennheiser HD 202 II supra-aural headphones can be used as an affordable headphone for screening audiometry provided reported MPANLs, maximum intensities and ETSPL values are employed. 相似文献