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991.
992.
Over the past few decades, the number and diversity of limited English speakers in the USA has burgeoned. With this increased diversity has come increased pressure--including new legal requirements--on healthcare systems and clinicians to ensure equal treatment of limited English speakers. Healthcare providers are often unclear about their legal obligations to provide language services. In this article, we describe the federal mandates for language rights in health care, provide a broad overview of existing state laws and describe recent legal developments in addressing language barriers. We conclude with an analysis of key policy initiatives that would substantively improve health care for LEP patients. 相似文献
993.
Srinivas VS Selzer F Wilensky RL Holmes DR Cohen HA Monrad ES Jacobs AK Kelsey SF Williams DO Kip KE;NHLBI Dynamic Registry 《Journal of interventional cardiology》2007,20(5):373-380
When percutaneous coronary intervention (PCI) is performed in patients with multivessel coronary disease, a targeted revascularization (TR) of diseased vessels is performed more often than complete revascularization (CR). We compared baseline characteristics and 1-year outcomes of patients undergoing TR by operator choice (n = 1,091), TR because CR was unachievable (n = 375), and CR (n = 315) in the National Heart, Lung, and Blood Institute (NHLBI) Dynamic Registry. Patients receiving TR because CR was unachievable were older, had more comorbidities, worse ejection fraction, less often received 2b/3a inhibitors and stents, and less frequently achieved complete angiographic success than either patients receiving TR by choice or CR. Despite these considerable differences, cumulative rates of 1-year mortality, the need for repeat PCI, or coronary bypass surgery were similar in patients who received CR, TR by choice, or TR because CR was unachievable. In multivariable models, after adjustment for clinical characteristics and propensity to receive CR, the hazard ratio for CR versus TR was 1.10 (95% CI: 0.58-2.10) for 1-year mortality; 0.89 (0.60-1.32) for repeat PCI, and 0.92 (0.66-1.29) for repeat PCI or coronary bypass surgery. In conclusion, despite the presence of more unfavorable characteristics, patients undergoing TR demonstrate 1-year outcomes equivalent to those having CR, supporting its continued use in selected patients. 相似文献
994.
Thøgersen J Knudsen CS Maetzke A Jensen SJ Keiding SR Alsner J Overgaard J 《International journal of radiation biology》2007,83(5):289-299
PURPOSE: High intensity femtosecond (1 fs = 10(-15) s) laser pulses may, via multi-photon processes, cause reproductive cell death at wavelengths that otherwise are harmless. We study the efficacy of inducing reproductive death of cancer cells by ultraviolet (UV), visible (VIS) and near infrared (IR) femtosecond laser pulses. MATERIALS AND METHODS: Human squamous carcinoma cervical cancer cells are irradiated by femtosecond laser pulses at 800 nanometers (nm), 400 nm, 266 nm and 200 nm. The reproductive death is assessed by colony forming assay. The contribution from multi-photon processes is evaluated by comparing the cell reproduction subsequent to irradiation by collimated (low intensity) and focused (high intensity), pulsed laser beams with identical fluences. RESULTS: Suitable femtosecond pulses are capable of arresting cell reproduction at all the tested wavelengths. Irradiation at 266 nm is far more efficient than the other wavelengths, both in terms of the fluence and the absorbed dose needed to induce reproductive cell death. The collimated 800 nm beam is unable to induce reproductive cell death even at a fluence of 230 Joule/square centimeters (J/cm2). However, focused 800 nm pulses with much higher intensities, but lower fluences efficiently arrest cell reproduction, thus highlighting the dramatic effect of multi-photon processes. At the intensities used in the present work focusing the 400 nm beam improves its efficacy by an order of magnitude, whereas focusing the 266 nm beam does not improve its efficacy. CONCLUSION: Femtosecond pulses at 200, 266, 400 and 800 nm induce reproductive cell death if the intensity is sufficiently high. Multi-photon processes can improve the efficacy substantially and even result in reproductive cell death at wavelengths, where single-photon processes are harmless. 相似文献
995.
The objectives of the study were to review the clinical entities that can cause ankylosis of the spine and to illustrate the
spectrum of traumatic injury patterns. Ankylosing spondylitis, diffuse idiopathic systemic hyperostosis, degenerative spondyloarthropathy,
and spinal canal stenosis can render the spine susceptible to trivial trauma. Multidetector computed tomography and magnetic
resonance imaging can accurately diagnose vertebral and soft tissue traumatic injury patterns in this patient population. 相似文献
996.
High altitude pulmonary edema (HAPE) is the leading cause of death from altitude illness and rapid descent is often considered a life-saving foundation of therapy. Nevertheless, in the remote settings where HAPE often occurs, immediate descent sometimes places the victim and rescuers at risk. We treated 11 patients (7 Nepalese, 4 foreigners) for HAPE at the Himalayan Rescue Association clinic in Pheriche, Nepal (4240 m), from March 3 to May 14, 2006. Ten were admitted and primarily treated there. Seven of these (6 Nepalese, 1 foreigner) had serious to severe HAPE (Hultgren grades 3 or 4). Bed rest, oxygen, nifedipine, and acetazolamide were used for all patients. Sildenafil and salmeterol were used in most, but not all patients. The duration of stay was 31 +/- 16 h (range 12 to 48 h). Oxygen saturation was improved at discharge (84% +/- 1.7%) compared with admission (59% +/- 11%), as was ultrasound comet-tail score (11 +/- 4 at discharge vs. 33 +/- 8.6 at admission), a measure of pulmonary edema for which admission and discharge values were obtained in 7 patients. We conclude it is possible to treat even serious HAPE at 4240 m and discuss the significance of the predominance of Nepali patients seen in this series. 相似文献
997.
PURPOSE: Combined brachytherapy and external beam radiation therapy (EBRT) of the prostate and seminal vesicles (SVs) is evolving as a successful treatment option for high-risk prostate cancer. Dose-volume histogram (DVH) analysis of the SV was performed in patients with biopsy-positive SV who received implantation of the SV and prostate. METHODS AND MATERIALS: Fifteen consecutive patients with high-risk features (prostate-specific antigen [PSA] > or =10 ng/mL, Gleason score > or = 7, or clinical stage > or = T2b) and a positive SV biopsy were treated with a 103Pd implant of the prostate and SV followed by 45Gy of EBRT. DVHs were generated for the prostate and total SV volume (SVT). In addition, the SV was divided into 3-mm-thick volumes identified as SV1, SV2, SV3, SV4, SV5, and SV6 starting from the junction of the prostate and SV and extending distally. Delivered dose was defined as the D90 (dose delivered to 90% of the organ on DVH). RESULTS: The median number of seeds implanted into the prostate and the SVT was 59 (41-94) and 9 (4-21), respectively. The median D90 values for the prostate, SVT, SV1, SV2, SV3, SV4, SV5, and SV6 were 103.2 (87.4-137.1), 46.2 (4.0-69.4), 76.0 (31.2-147), 63.4 (25.1-145.9), 49.7 (15.3-118), 27.4 (9.3-135.1), 14.2 (2.3-100.3), and 3.9 (0-61.5) Gy, respectively. CONCLUSIONS: Implantation of the SV using a real-time intraoperative approach is technically feasible and results in higher doses to the SV than has been reported with implantation of the prostate alone. Although dose distribution in the SV can be variable and unpredictable, these doses, in combination with 45 Gy of EBRT, may be adequate to control disease spread in these organs. 相似文献
998.
Aiken SD Delson N Davidson TM Hastings RH 《Anesthesia and analgesia》2007,105(4):1118-26, table of contents
999.
Wiefferink A Weerwind PW van Heerde W Teerenstra S Noyez L de Pauw BE Brouwer RM 《The Journal of extra-corporeal technology》2007,39(2):66-70
The coagulation-fibrinolytic profile during cardiopulmonary bypass (CPB) has been widely documented. However, less information is available on the possible persistence of these alterations when autotransfusion is used in management of perioperative blood loss. This study was designed to explore the influence of autotransfusion management on intravascular fibrin degradation and postoperative transfusions. Thirty patients, undergoing elective primary isolated coronary bypass grafting, were randomly allocated either to a control group (group A; n=15) or an intervention group (group B; n=15) in which mediastinal and residual CPB blood was collected and processed by a continuous autotransfusion system before re-infusion. Intravascular fibrin degradation as indicated by D-dimer generation was measured at five specific intervals and corrected for hemodilution. In addition, chest tube drainage and need for homologous blood were monitored. D-dimer generation increased significantly during CPB in group A, from 312 to 633 vs. 291 to 356 ng/mL in group B (p = .001). The unprocessed residual blood (group A) revealed an unequivocal D-dimer elevation, 4131 +/- 1063 vs. 279 +/- 103 ng/mL for the processed residual in group B (p < .001). Consequently, in the first post-CPB period, the intravascular fibrin degradation was significantly elevated in group A compared with group B (p = .001). Twenty hours postoperatively, no significant difference in D-dimer levels was detected between both groups. However, a significant intra-group D-dimer elevation pre- vs. postoperative was noticed from 312 to 828 ng/mL in group A and from 291 to 588 ng/mL in group B (p < .01 for both). Postoperative chest tube drainage was higher in the patients from group A, which also had the highest postoperative D-dimer levels. Patients in group A perceived a higher need for transfusions of red cells suspensions postoperatively. These data clearly indicate that autotransfusion management during and after CPB suppresses early postoperative fibrin degradation. Keywords: cardiopulmonary bypass, cardiotomy suction, coronary surgery, autotransfusion, fibrin degradation. 相似文献
1000.
Alice Che‐Ha Chen Annie Keleher Mary‐Anne Kedda Amanda B. Spurdle Nigel A.J. McMillan Annika Antonsson 《Journal of medical virology》2009,81(10):1792-1796
Recent studies have shown that human papillomavirus (HPV) DNA can be found in circulating blood, including peripheral blood mononuclear cells (PBMCs), sera, plasma, and arterial cord blood. In light of these findings, DNA extracted from PBMCs from healthy blood donors were examined in order to determine how common HPV DNA is in blood of healthy individuals. Blood samples were collected from 180 healthy male blood donors (18–76 years old) through the Australian Red Cross Blood Services. Genomic DNA was extracted and specimens were tested for HPV DNA by PCR using a broad range primer pair. Positive samples were HPV‐type determined by cloning and sequencing. HPV DNA was found in 8.3% (15/180) of the blood donors. A wide variety of different HPV types were isolated from the PBMCs; belonging to the cutaneous beta and gamma papillomavirus genera and mucosal alpha papillomaviruses. High‐risk HPV types that are linked to cancer development were detected in 1.7% (3/180) of the PBMCs. Blood was also collected from a healthy HPV‐positive 44‐year‐old male on four different occasions in order to determine which blood cell fractions harbor HPV. PBMCs treated with trypsin were negative for HPV, while non‐trypsinized PBMCs were HPV‐positive. This suggests that the HPV in blood is attached to the outside of blood cells via a protein‐containing moiety. HPV was also isolated in the B cells, dendritic cells, NK cells, and neutrophils. To conclude, HPV present in PBMCs could represent a reservoir of virus and a potential new route of transmission. J. Med. Virol. 81:1792–1796, 2009. © 2009 Wiley‐Liss, Inc. 相似文献