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https://www.readbyqxmd.com/read/21703486/-anesthesia-for-minimally-invasive-cardiac-procedure
#1
C Saroul, G Keller, M Benaissa, J J Lehot
The objectives are to present the different minimally invasive cardiac surgery techniques to repair the mitral valve, TAVI and MitraClip, as well as the implications for the anaesthetist. Evaluate retrospectively the anaesthesist methods, change in monitoring and how the patients are selected. The mitral valve repair by minithoracotomy and video-surgery requires selective left intubation and monitoring by TEE. The TAVI methods seem to be working best under local anaesthesia and sedation for haemodynamic and neurologic monitoring...
May 2011: Annales Françaises D'anesthèsie et de Rèanimation
https://www.readbyqxmd.com/read/21680600/influence-of-the-site-of-measurement-on-the-ability-of-plethysmographic-variability-index-to-predict-fluid-responsiveness
#2
F-P Desgranges, O Desebbe, A Ghazouani, K Gilbert, G Keller, P Chiari, J Robin, O Bastien, J-J Lehot, M Cannesson
BACKGROUND: Plethysmographic variability index (PVI) is an accurate predictor of fluid responsiveness in mechanically ventilated patients. However, the site of measurement of the plethysmographic waveform impacts its morphology and its respiratory variation. The goal of this study was to investigate the ability of PVI to predict fluid responsiveness at three sites of measurement (the forehead, ear, and finger) in mechanically ventilated patients under general anaesthesia. METHODS: We studied 28 subjects after induction of general anaesthesia...
September 2011: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/19940262/the-cardiomyocyte-lineage-is-critical-for-optimization-of-stem-cell-therapy-in-a-mouse-model-of-myocardial-infarction
#3
Eric D Adler, Vincent C Chen, Anne Bystrup, Aaron D Kaplan, Steven Giovannone, Karen Briley-Saebo, Wilson Young, Steve Kattman, Venkatesh Mani, Michael Laflamme, Wei-Zhong Zhu, Zahi Fayad, Gordon Keller
We recently described a murine embryonic stem cell (ESC) line engineered to express the activated Notch 4 receptor in a tetracycline (doxcycline; Dox) regulated fashion (tet-notch4 ESCs). Notch 4 induction in Flk1(+) hematopoietic and vascular progenitors from this line respecified them to a cardiovascular fate. We reasoned that these cells would be ideal for evaluating the contribution of the cardiomyocyte and vascular lineages to the functional improvement noted following stem cell transplantation in infarcted hearts...
April 2010: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/10479918/non-specific-aorto-arteritis-clinical-picture-diagnosis-and-therapy
#4
S Miani, M De Monti, G Keller, M G Bordoni, E Bianchi, F Giordanengo
This study is aimed at analyzing clinical features, angiographic findings and evolution of Takayasu's arteritis and the criteria adopted to establish the indication for non-surgical versus operative treatment. Eighteen patients affected by non specific aortarteritis were observed and treated at our Department between 1973 and 1996. All patients met the American College of Rheumatology 1990 criteria of classification of Takayasu's arteritis. Sixteen patients were young females. Two patients were males. Nine patients underwent surgical procedures...
June 1999: Panminerva Medica
https://www.readbyqxmd.com/read/9050750/in-vivo-effects-of-cardiotrophin-1
#5
H Jin, R Yang, G A Keller, A Ryan, A Ko, D Finkle, T A Swanson, W Li, D Pennica, W I Wood, N F Paoni
Cardiotrophin-1 (CT-1) is a recently discovered cytokine that was isolated based on its ability to induce cardiac myocyte hypertrophy in vitro. In this study, the effects of chronic administration of CT-1 to mice (0.5 or 2 microg by intraperitoneal injection, twice a day for 14 days) were determined. A dose-dependent increase in both the heart weight and ventricular weight to body ratios was observed in the treated groups. The body weights of the animals were unaffected. These results indicate that CT-1 can induce cardiac hypertrophy in vivo...
December 1996: Cytokine
https://www.readbyqxmd.com/read/872655/monitoring-of-pulmonary-fluid-volume-and-stroke-volume-by-impedance-cardiography-in-patients-on-hemodialysis
#6
G Keller, A Blumberg
Changes of intrathoracic fludi volume during maintenance therapy with hemodialysis were studied in ten patients with the aid of impedance cardiography. It was found that there was a statistically significant correlation between the decrease in body weight and the increase in basic thoracic impedance in the individual patients, but the values differed considerably from one patient to another. Therefore, comparison of sequential measurements is feasible only in one and the same patient. Out of 16 patients with overhydration undergoing dialysis, the stroke volume could not be determined by impedance cardiographic studies in eight, owing to the abnormal morphology of the dZ/dt curve...
July 1977: Chest
https://www.readbyqxmd.com/read/39267/oxygen-consumption-during-maintenance-hemodialysis
#7
A Blumberg, G Keller
The influence of hemodialysis on oxygen consumption was studied in 15 patients on maintenance dialysis. Red cell 2,3-DPG, P50, an inverse measure of oxygen affinity of hemoglobin, arterial and central venous blood gases and cardiac index were measured. 2,3-DPG remained unchanged, whereas in vivo P50 fell significantly during dialysis due to a rise of pH (Bohr effect). Arterial PO2 was lower after than before dialysis, but arterial and central venous oxygen saturations did not change significantly. Cardiac index increased from 3...
1979: Nephron
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