Hunter Defense Technologies (United States)

Background: Intentional weight loss with bariatric surgery is associated with better outcomes in younger patients with prevalent HF. However, temporal trends in use of bariatric surgery and anti-obesity medications (AOM) among older patients with new onset HF and obesity, and their effect on CV outcomes are not well studied. Methods: Medicare patients with obesity and new onset HF from 2013 to 2019 were identified using the 100% inpatient files. Patients who underwent bariatric surgery were matched to controls in a 1:2 ratio (matched on age, sex, race, BMI, and HF diagnosis year, and comorbidities). In a random 5% sample with available Part D data, HF patients with obesity who were prescribed AOM (Semaglutide, liraglutide, naltrexone or orlistat) were identified and matched to HF controls as above. Cox models were used to evaluate the association of weight loss therapies (modeled as a time-varying dependent variable) and risk of mortality, atrial fibrillation (AF), and HF readmission rate. Results: Overall, 1.5% (2684 of 174,196) patients with new onset HF and BMI ≥35 underwent bariatric surgery (46% men, age 55 y and BMI 52 Kg/m2). Bariatric surgery use increased from 0.3% in 2013 to 1.4% in 2019 (P <0.01). In propensity-matched analyses (surgery N=2144 vs. control N=3920, f/u of 4.2 y), bariatric surgery following incident HF was associated with a significantly lower risk of mortality and new-onset AF (Figure), and a lower rate of HF readmissions (pre- vs. post-surgery rate: 0.9 vs. 0.3/100 person-days). In the subset with Part D data (N=36603), use of AOM was low (3.7%). In propensity-matched analysis, (AOM N=611 vs. controls N=891, f/u of 1.8 y), use of AOM were associated with 30% lower risk of mortality and 35% lower risk of AF compared with controls. Conclusions: Bariatric surgery and AOM are associated with favorable CV outcomes among HF patients with obesity. However, their utilization remains extremely low highlighting an important gap in care of HF patients with obesity.

Introduction: Atrial functional tricuspid regurgitation (AFTR) is an increasingly recognized and prevalent clinical entity associated with adverse outcomes. Hypothesis: We evaluated the clinical and echocardiographic features of AFTR and those associated with poor prognosis. Methods: Consecutive patients with at least moderate-to-severe and isolated AFTR during 14 years were studied, and clinical and echocardiographic parameters including that for TR and the right heart were analyzed. Multivariable and receiver-operative characteristics analyses were performed to identify predictors and their thresholds for all-cause mortality during follow-up. Results: Amongst 155 AFTR patients (age 73±15, female 83%), 58(37%) were symptomatic, and 80 (52%) had atrial fibrillation. There were 77 (49%) deaths over a mean follow-up of 3.9±3.3 years. Multivariable analyses results are shown in the Table 1, were symptoms, right atrial strain and right ventricular systolic pressure (RVSP) were independently associated with mortality during follow-up with hazards ratios (95% confidence intervals, P-values) of 3.27 (1.18-9.04, P=0.022), 0.95 per 1% increase (0.92-0.98, P=0.01), and 1.05 per 1 mmHg increase (1.01-1.09, P=0.003). Area under curve (95% confidence interval) and optimal thresholds for the most important echocardiographic parameters to predict mortality were RVSP 0.80 (0.74-0.92) >44 mmHg, right atrial strain 0.73 (0.62-0.84) < +21%, and right ventricular free wall longitudinal strain 0.69 (0.57-0.81) > -18%. Conclusions: Significant AFTR is associated with adverse prognosis, therefore accurate diagnosis is critical. The key predictors of mortality include symptoms, reduced right atrial strain and higher RVSP, and their presence may prompt more aggressive medical and procedural therapies in AFTR patients that warrants further research.

In this paper, Raman spectra of human serum were measured using Raman spectroscopy, then the spectra was analyzed component analysis (PCA). Then linear discriminant analysis (LDA) was utilized to differentiate the loading score of different diseases as the diagnosing algorithm. Artificial neural network (ANN) was used for cross-validation. The diagnosis sensitivity and specificity by PCA-LDA are 88% and 79%, while that of the PCA-ANN are 89≊ and 95%. It can be seen that modern analyzing method is a useful tool for the analysis of serum spectra for diagnosing diseases.

Frequency spectra of the magnetron of the Whirlpool - Talent microwave oven with a cuboidal glass object located in the centre of the turntable are measured with a spectrum analyser for different angular positions of the object. Then, electromagnetic software is used to calculate the amplitude of the reflection coefficient as a function of frequency in the frequency band between 2.4 GHz and 2.5 GHz, for different angular positions of the glass object. By comparing calculated resonant frequencies with the measured leakage characteristics, conclusions regarding the actual operating frequency of the microwave oven are drawn. This provides valuable suggestions for further modelling activities in the area of microwave power applications.

Surface enhanced Raman spectroscopy (SERS) has shown the advantage of detecting low concentration biofluids presently. Saliva SERS of 21 lung cancer patients and 22 normal people were measured and differentiated in this paper. Intensities of most peaks of lung cancer patients are weaker than that of normal people, some are stronger but with a small change rate. Those peaks were assigned to proteins and nucleic acids which indicate a corresponding decrease of substance in saliva. Principal component analysis (PCA) and linear discriminant analysis (LDA) were used to deduce and discriminate the two groups of data, resulted in accuracy, sensitivity, and specificity being 84%, 94%, and 81%, respectively. In conclusion, SERS of saliva has the ability of predicting lung cancer.

A veteran turnaround manager, envious of the greenhouse of privacy and financial security in which private equity firms cultivate companies, lays out three things owners can do to be sure they never need to call her. Focus relentessly on the cash and how it moves; move beyond periodic reports to qualitative assessment of what is going on inside and outside the company; and foster a culture in which people are free to be themselves, taking risks, making mistakes, fixing them, and being valued for doing so. Companies are living breathing organisms, and respond to owner9s nurture. <b>TOPICS:</b>Private equity, performance measurement, manager selection