The recent development of gallstone fragmentation methods has increased the significance of the study of the mechanical properties of human gallstones. In the present work, fracture strength data and microhardness values of gallstones of various chemical compositions are presented as tested in both dry and simulated bile environments.
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History of Saint Petersburg. The city of Saint Petersburg was founded by Tsar Peter the Great on 27 May 1703. It became the capital of the Russian Empire and remained as such for more than two hundred years (1712–1728, 1732–1918). Saint Petersburg ceased being the capital in 1918 after the October Coup.
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It is suggested that the gallstone matrix may inhibit stone dissolution even after stone fragmentation, and cholesterol and mixed gallstone dissolution in vitro by methyltert-butyl ether (MTBE) after gallstone fragmentation is examined. This study examined cholesterol and mixed gallstone dissolution in vitroby methyltert-butyl ether (MTBE) after gallstone
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· Acoustic energies for the fragmentation of test specimens and gallstones. Size Acoustic energy Material (mm) (mJ/cm-3) Breeze blocks 9 620 (435-947) 16 670 (546-912) Plaster balls 12 1599 (1295-1946) 15 1764 (1263-2458) Glass marbles 16 3669 (2069-6683) Gallstones 17 8050 (4336-17850) Energy values are medians (range in brackets).
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Abstract Eighty in vitro experiments were performed with single (n = 51) or multiple (n = 29) gallstones in order to find out which parameters are of prime importance for their
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:Gallstone LithotripsyPublish Year:1991Nimish Vakil, E.Carr EverbachThe relationship between gallstone fragmentation during extracorporeal shock wave lithotripsy (ESWL) and gallstone volume is poorly understood. Clinical results of ESWL
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DOI: 10.1055/s-2008-1040587 Corpus ID: 38274104 Fragmentation of Gallstones by Extracorporeal Shock Waves @article{Paumgartner1987FragmentationOG, title={Fragmentation of Gallstones by Extracorporeal Shock Waves}, author={Gustav Paumgartner
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DOI: 10.1097/00132586-198702000-00017 Corpus ID: 1871457 Fragmentation of gallstones by extracorporeal shock waves. @article{Sauerbruch1986FragmentationOG, title={Fragmentation of gallstones by extracorporeal shock waves.}, author={Tilman Sauerbruch and Michael Delius and Gustav Paumgartner and Joseph Holl and Othmar J.
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· Based on 12 studies, the incidence of gallstones was 0.47 per 100 person-years (95% CI, 0.37–0.51), without differences between males and females, and with increasing incidence in more recent studies. Conclusions Globally, 6% of
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The presence of gas in a gallstone can profoundly affect the ability of shock waves to fragment the stone by various mechanisms. In the present study, the aim was to
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Background Most retained gallstones can be extracted at the time of operative exploration or endoscopic retrograde cholangiopancreatography (ERCP). Infrequently, impaction or associated anatomic abnormalities may prevent their clearance. We assessed the efficacy of the holmium: YAG laser in managing retained biliary calculi that had proven refractory to
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· Sauerbruch T, Delius M, Paumgartner G et al (1986) Fragmentation of gallstones by extracorporeal shock waves. New England Journal of Medicine 314: 818-822. Sauerbruch T, Holl J, Sackmann M & Paumgartner G (1988) The role of extracorporeal lithotripsy (ESWL) in the treatment of gallstones.
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:Gallstone LithotripsyPublish Year:1990 · Stone capture in a wire basket facilitated fragmentation of gallstones of all sizes, but particularly those stones 15 mm or larger. Contact EHL could be performed as
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Lithotripsy is a medical procedure that uses shock waves to break up stones in the body. The shock waves are created by a machine called a lithotripter. Lithotripsy is used to treat kidney stones and gallstones. The lithotripter
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Abstract. With a Wolf Ultrasonic lithotrite, gallstones from 12 patients were fragmented in vitro. The average fragmentation time was 20 seconds compared with 4 days when they could be dissolved by monooctanoin. A stone from one patient could not be fragmented successfully. The ability of ultrasound to fragment gallstones did not depend on
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St. Petersburg Polytechnic University Journal: Physics and Mathematics Peter the Great St. Petersburg Polytechnic University Since 2008 ISSN 2304-9782 ISSN 2618-8686 ISSN 2405-7223
ConsultaTo substantiate the early results of extracorporeal shock-wave fragmentation of gallstones, we used this nonsurgical procedure to treat 175 patients with radiolucent gallbladder calculi.
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We find that the physical mechanisms of stone fragmentation appear to be quite different in the two cases. Using high-speed photography, measurement of acoustic transients, time-resolved optical emission spectroscopy, and direct microscopic observation, we have analyzed the interaction of the Ho:YAG laser with both water and gallstones.
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· Thirty mixed gallstones (mean size, 6.9 × 5.1 mm) and 20 bilirubinate gallstones (mean size, 7.1 × 5.2 mm) were fragmented during the study. Maximum temperature ( T max ), duration of T max ( T max D ), interval to stone piercing ( T ip ), and interval to fragmentation ( T iF ) were measured and comparisons were carried out with
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:Gallstone LithotripsyTung GA · In vitro lithotripsy with the Siemens Lithostar was conducted on 36 radiolucent or minimally calcified gallstones housed in an anthropomorphic phantom.
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High-energy shock waves generated extracorporeally have been successfully employed for nonsurgical fragmentation of kidney stones. 7 Consequently, Brendel and Enders 8 have studied the effects of
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In vitro fragmentation of gallstones was performed by means of ultrasound (n = 89) and electrohydraulic lithotripsy (n = 83) with success rates of 100% and 93%, respectively. The fragmentation time was 21.9 +/- 52 seconds (mean +/- SEM) for ultrasound and 2.5 +/- 3.4 seconds for electrohydraulic lit
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:Publish Year:1988 · PDF the incidence of gallstones was 0.47 per 100 person-years (95% CI, 0.37–0.51), without dif-ferences between males and females, and with increasing incidence in more recent
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Abstract. Recently extracorporeal shockwave lithotripsy (ESWL) has been introduced as a nonoperative treatment for gallstone disease. Except for lung damage, no significant adverse effects of ESWL of gallbladder stones have been observed in animals. In clinical use ESWL of gallbladder stones is now confined to 15% to 30% of symptomatic patients.
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· Treatment options for gallstones include: Surgery to remove the gallbladder (cholecystectomy). Your doctor may recommend surgery to remove your gallbladder, since gallstones frequently recur. Once your gallbladder is removed, bile flows directly from your liver into your small intestine, rather than being stored in your gallbladder.
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· Use for informational purposes only. Gallstones can be seen in the toilet either as separate stones or embedded near the surface of the stool. The most common type is cholesterol gallstones which appear as a yellowish small stones that may float on the toilet water. However, gallstones come in different shapes, sizes, and colors.
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Find the best doctors for treating Gallstones in St Petersburg. Compare doctors, read patient reviews and more. Book an appointment today. Review your doctor Help Millions of people find the right doctor and care they need NEW! Telehealth Resource Center Get immediate care and visit with providers from the comfort of your home, or anywhere
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:Gallstone LithotripsyPublish Year:1991Nimish Vakil, E.Carr EverbachTo compare the fragmentation efficiency of three different shockwave systems, 63 human gallstone triplets were disintegrated in vitro using an electrohydraulic (MPL 9000,
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Semantic Scholar extracted view of "Investigating the Fragmentation of Pacific Walrus Sea-Ice Habitat in the Wainwright and Saint Lawrence Island Regions of Alaska using Landsat Satellite Data" by Anthony Himmelberger Corpus ID: 214246705 Investigating the
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DOI: 10.1016/j.cgh.2024.01.051 Corpus ID: 267780869 Global Epidemiology of Gallstones in the 21st Century: A Systematic Review and Meta-analysis. @article{Wang2024GlobalEO, title={Global Epidemiology of Gallstones in the 21st Century: A Systematic
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Trituradora de piedra vendida por proveedores certificados, como trituradoras de mandíbula/cono/impacto/móvil, etc.
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