The Role of Extracorporeal Shock Waves

Within a continuum framework, flows featuring shock waves can be modelled by means of either shock capturing or shock fitting. Shock-capturing codes are algorithmically simple, but are plagued by a number of numerical troubles, particularly evident when shocks are strong and the grids unstructured. On the other hand, shock-fitting algorithms on structured grids allow to accurately compute solutions on coarse meshes, but tend to be algorithmically complex. We show how recent advances in computational mesh generation allow to relieve some of the difficulties encountered by shock capturing and contribute towards making shock fitting on unstructured meshes a versatile technique.

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The role of limit cycles in the admissibility of shock waves

Revista Matemática Contemporânea ◽

10.21711/231766361995/rmc84 ◽

1995 ◽

Vol 8 (4) ◽

Author(s):

Sunčica Čanić

Keyword(s):

Shock Waves ◽

Limit Cycles

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The In Vitro and In Vivo Effects of Extracorporeal Shock Waves on Tumor Cells

Shock Wave Lithotripsy ◽

10.1007/978-1-4757-1977-2_72 ◽

1988 ◽

pp. 351-355

Author(s):

Gerhard J. Fuchs ◽

Randall F. Randazzo ◽

Anna M. Fuchs ◽

Arnulf Stenzl ◽

Christian G. Chaussy

Keyword(s):

Shock Waves ◽

Tumor Cells ◽

Extracorporeal Shock Waves ◽

In Vivo Effects

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Experimental Effects of Extracorporeal Shock Waves on the Rat Ovary and Fetus

Shock Wave Lithotripsy ◽

10.1007/978-1-4757-1977-2_67 ◽

1988 ◽

pp. 327-328 ◽

Cited By ~ 1

Author(s):

David L. McCullough ◽

Leslie D. Yeaman ◽

Walter J. Bo ◽

Roy L. Kroovand ◽

Dean G. Assimos ◽

...

Keyword(s):

Shock Waves ◽

Extracorporeal Shock Waves ◽

Rat Ovary

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The repeated extracorporeal shock waves and the renal parenchyma injury on normal and diabetic rats

Acta Cirurgica Brasileira ◽

10.1590/s0102-86502007000400010 ◽

2007 ◽

Vol 22 (4) ◽

pp. 285-290 ◽

Cited By ~ 2

Author(s):

Vicente Massaji Kira ◽

Djalma José Fagundes ◽

César Orlando Peralta Bandeira ◽

Anna Tereza Negrini Fagundes ◽

Valdemar Ortiz

Keyword(s):

Shock Waves ◽

Renal Cortex ◽

Diabetic Rats ◽

Renal Parenchyma ◽

Interstitial Tissue ◽

Accumulated Damage ◽

Histological Sections ◽

Extracorporeal Shock Waves

PURPOSE: To assess the effect of repeated extracorporeal shock waves (ESW) on renal parenchyma of normal and diabetic rats. METHODS: 40 normal rats (A) and 40 diabetic rats (B) were assigned for ESW (Direx Tripter X1® - 14 KVA) as follow: A1/B1 and A3/B3 no ESW; A2/B2 one ESW (2,000 SW); A4/B4 two ESW (4,000 SW) in an elapsed 14 days. All the animals were sacrificed 3 days after the ESW and samples of renal parenchyma were histological prepared, stained by H&E. For each animal the frequency of hemorrhage focus (HF) in the subcapasular, interstitial and glomerulus area was calculated (porcentage) on 20 randomly histological sections. RESULTS: No one HF was identified in all normal or diabetic animals without ESW (A1, A3 and B1, B3). In the normal rats the HF frequency was similar to one ESW (subcapsular =15%; interstitial =20% and glomerular =10%) or repetead ESW (subcapsular =25%; interstitial =20%; glomerular=10%). In diabetic rats the occurence of HF with repetead ESW was more frequent (subcapsular =40%; interstitial =30% and glomerular =10%) than with a single ESW (subcapsular =25%; interstitial =15% and glomerular =15%). CONCLUSION: A single ESW or a repeated ESW caused a mild and similar damage on renal cortex of normal rats. In diabetic rats the repetead ESW may result in an accumulated damage, especially with focus of hemorrhage in subcapsular and interstitial tissue and glomerulus edema.

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Excimer Laser Tissue Ablation : The Potential Role of Laser Induced Shock Waves and Problems Associated with Contact Dependent Multifiber Laser Catheter

Korean Circulation Journal ◽

10.4070/kcj.1992.22.5.811 ◽

1992 ◽

Vol 22 (5) ◽

pp. 811

Author(s):

Seung-Jea Tahk ◽

Herbert J. Geschwind ◽

Takanobu Tomaru ◽

Georges Boussignac

Keyword(s):

Shock Waves ◽

Excimer Laser ◽

Potential Role ◽

Tissue Ablation

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The effect of urinary tract calculosis to levels of low molecular inhibitors of crystallization in the urine

Srpski arhiv za celokupno lekarstvo ◽

10.2298/sarh0602040m ◽

2006 ◽

Vol 134 (1-2) ◽

pp. 40-43

Author(s):

Dragica Milenkovic ◽

Natasa Lalic

Keyword(s):

Urinary Tract ◽

Shock Waves ◽

Stone Formation ◽

Upper Urinary Tract ◽

Therapeutic Procedure ◽

Residual Stone ◽

Extracorporeal Shock Waves ◽

Urinary Levels ◽

Urinary Tract Stones ◽

Pre Treatment

The incidence of urinary tract calculosis continuously progresses. The triggering event in the process of stone formation is decreased urinary level of crystallizing inhibitors. The aim of our study was to investigate whether the existing stone or applied therapeutic procedure - extracorporeal shock waves lithotripsy (ESWL) - has effect to urinary levels of Mg, citrate and pyrophosphate. Study included 128 patients with the upper urinary tract stones. ESWL using the Lithostar (Siemens) device was used as a mode of treatment. Out of all patients, 76 (59%) were free of stone particles before 1 month, while 52 (41%) had residual stone fragments even 3 months after ESWL. Mg, citrate and pyrophosphate were measured in 24hurine specimens: before, between days 2 and 3, as well as 1 and 3 months after ESWL. The analysis of the results revealed that stone itself had no effect on urinary crystallizing inhibitors. Detected increased urinary levels of Mg, citrate and pyrophosphate after ESWL, compared with pre-treatment values, could be attributed to applied therapeutic procedure.

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