Surgical Embolectomy of the Aortic Bifurcation: A Historical but Lifesaving Alternative Procedure

Real-time monitoring of the economy is based on activity indicators that show regular patterns such as trends, seasonality and business cycles. However, parametric and non-parametric methods for signal extraction produce revisions at the end of the sample, and the arrival of new data makes it difficult to assess the state of the economy. In this paper, we compare two signal extraction procedures: Circulant Singular Spectral Analysis, CiSSA, a non-parametric technique in which we can extract components associated with desired frequencies, and a parametric method based on ARIMA modelling. Through a set of simulations, we show that the magnitude of the revisions produced by CiSSA converges to zero quicker, and it is smaller than that of the alternative procedure.

Download Full-text

Clinical outcomes of surgical embolectomy versus catheter-directed thrombolysis for acute limb ischemia: a nationwide cohort study

Journal of Thrombosis and Thrombolysis ◽

10.1007/s11239-021-02532-1 ◽

2021 ◽

Author(s):

Po-Kai Yang ◽

Chien-Chou Su ◽

Chih-Hsin Hsu

Keyword(s):

Rate Ratio ◽

Surgical Intervention ◽

Limb Ischemia ◽

Acute Limb Ischemia ◽

Antithrombotic Agent ◽

Catheter Directed Thrombolysis ◽

Significant Difference ◽

Surgical Embolectomy ◽

Adjusted Rate ◽

Adjusted Rate Ratio

AbstractIn Taiwan, the outcomes of acute limb ischemia have yet to be investigated in a standardized manner. In this study, we compared the safety, feasibility and outcomes of acute limb ischemia after surgical embolectomy or catheter-directed therapy in Taiwan. This study used data collected from the Taiwan’s National Health Insurance Database (NHID) and Cause of Death Data between the years 2000 and 2015. The rate ratio of all-cause in-hospital mortality and risk of amputation during the same period of hospital stay were estimated using Generalized linear models (GLM). There was no significant difference in mortality risk between CDT and surgical intervention (9.5% vs. 10.68%, adjusted rate ratio (95% CI): regression 1.0 [0.79–1.27], PS matching 0.92 [0.69–1.23]). The risk of amputation was also comparable between the two groups. (13.59% vs. 14.81%, adjusted rate ratio (95% CI): regression 0.84 [0.68–1.02], PS matching 0.92 [0.72–1.17]). Age (p < 0.001) and liver disease (p = 0.01) were associated with higher mortality risks. Heart failure (p = 0.03) and chronic or end-stage renal disease (p = 0.03) were associated with higher amputation risks. Prior antithrombotic agent use (p = 0.03) was associated with a reduced risk of amputation. Both surgical intervention and CDT are effective and feasible procedures for patients with ALI in Taiwan.

Download Full-text

Safety and Efficacy of Covered Endovascular Reconstruction of the Aortic Bifurcation Technique for Relining of Failed Aortoiliac Stenting: A Single-Center Experience

10.1055/s-0041-1729016 ◽

2020 ◽

Author(s):

Maria Antonella Ruffino ◽

Andrea Discalzi ◽

Dorico Righi ◽

Paolo Fonio

Keyword(s):

Aortic Bifurcation ◽

Single Center ◽

Safety And Efficacy ◽

Single Center Experience

Download Full-text

An alternative procedure for setting up fock matrices from randomly ordered lists of electron interaction integrals

Chemical Physics Letters ◽

10.1016/0009-2614(72)80047-2 ◽

1972 ◽

Vol 13 (1) ◽

pp. 76-78 ◽

Cited By ~ 16

Author(s):

A.J. Duke

Keyword(s):

Electron Interaction ◽

Alternative Procedure

Download Full-text

Fluorescence background discrimination by prebleaching.

Journal of Histochemistry & Cytochemistry ◽

10.1177/27.1.86585 ◽

1979 ◽

Vol 27 (1) ◽

pp. 96-101 ◽

Cited By ~ 16

Author(s):

T Hirschfeld

Keyword(s):

Fluorescent Dyes ◽

Fluorescence Decay ◽

Free Form ◽

Alternative Procedure ◽

Background Fluorescence ◽

Decay Lifetime ◽

Fluorescent Molecules ◽

Background Contrast

A number of electrooptical techniques are described that discriminate against background fluorescence in biologic staining, whether from sample background or unbound excess stain. These techniques are based on the fluorescent decay lifetime difference between bound stain and the sample background or between the bound stain its free form. The fluorescence decay lifetimes may be measured either directly or in a combination gated photometry scheme to substantially enhance the sample background contrast. An alternative procedure uses the photochemical bleaching of fluorescent dyes under intense exposure to time discriminate with higher selectivity, sensitivity and in a more convenient fashion between diverse fluorescent molecules.

Download Full-text