Edge technique

Indications for surgical intervention include regurgitation with NYHA lll-IV symptoms or NHYA >11 with atrial fibrillation refractory to conservative treatment. Several surgical techniques are effective, The Alfieri stitch or edge to edge technique is of interest because one of the percutaneous mitral valve repair techniques is based on an equivalent principle (29,30). Currently two methods for transcatheter mitral valve repair are investigated in clinical trials ... 

With annuloplasty procedures heparin and endocarditis prophylaxis should be administered before the procedures. When the edge-to-edge technique is performed, heparin should not be administered until the transseptal puncture has been performed. Regular follow-up examination, anticoagulation, and endocarditis prophylaxis are recommended after mitral repair procedures. 

Maisano p Torracca L, Oppizzi M, et al. The edge-to-edge technique a simplified method to correct mitral insufficiency. EurJ Cardiothorac Surg 1998 13 240-245. 

Feldman T Wasserman HS, Herrmann HC, et al. Percutaneous mitral valve repair using the edge-to-edge technique six-month results of the EVEREST Phase I Clinical Trial. J Am Coll Cardiol 2005 46 2134-2140. 

FIGURE 7.2 Double orifice created by the surgical edge-to-edge technique. 

Although specific examples like those mentioned above are well suited for x-ray absorption analysis, with good selectivity using the absorption-edge technique, in general the method does not offer significant advantages over x-ray fluorescence analysis. Since the latter technique is easier to apply, it is more widely used. 

Cutting-edge techniques for marijuana-cannabinoid research from genes to behavior... 

AFM-IR is a cutting-edge technique set up in 2005 by A. Dazzi, a physicist at the University of Paris 11, under the name of PT-IR (photothermally induced resonance), which has revolutionized the domain of infrared spectroscopy [149,150]. It is based on the coupling of an AFM with a tunable pulsed infrared laser emitting in the mid-infrared region (1200-3200 cm ). The sample is laid on the upper surface of a zinc selenide prism, analogous to the one used for ATR... 

Today, the majority of enzymes used in the detergent industry are produced by cultivation of selected microorganisms in large submerse fermentation tanks. The production process and production strains have steadily been developed over the past 50 years and nowadays the fermentation of enzymes is based on the cutting-edge techniques within modem ceU biology. 

Korb, C. L. Gentry, B. M New Doppler lidar methods for atmospheric wind measurements the edge technique, Conf. of Lasers and Electro-Optics, OSA (Optical Society of America) Technical Digest Series, 7, p. 322-324, (1990). 

The experiments in this case were performed in a typical pump-probe arrangement, i.e. the output was split into two beams and a variable time delay between the excitation and probe pulse was introduced with a translation stage [149]. The beams were focused through the same lens on the (CH) and Si film, respectively. Measuring the exact spatial profile of the pulses using a knife-edge technique allowed for the determination of the photon fluxes. The incident light was linearly polarized with a dichromic polarizer and subsequently rotated via a half-wave plate. 

C.L. Korb, B.M. Gentry, C.Y. Weng Edge technique Theory and application to the lidar measurement of atmospheric wind. Appl. Opt. 31, 4202 (1992)... 

WG13.5 (Human Error, Safety and System Development) seeks a framework for studying human factors relating to systems failure, develops leading-edge techniques in hazard analysis and safety engineering of computer-based systems, and guides international accreditation activities for safety-critical systems. 

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