Piezoelectric lithotripsy of gallbladder stones: fragmentation rate vs stone size, number and character

1991 ◽  
Vol 27 (6) ◽  
pp. 813
Author(s):  
In Sup Song ◽  
Byung Ihn Choi ◽  
Joon Koo Han ◽  
Hyun Kyung Lee ◽  
Yong Hyun Park ◽  
...  
Keyword(s):  
Stone Size ◽  
Gallbladder Stones ◽  
Fragmentation Rate ◽  
Size Number

THE OUTCOME OF EXTRACORPOREAL SHOCK WAVE LITHOTRIPSY IN MANAGEMENT OF RESIDUAL KIDNEY STONES AFTER THE FIRST TREATMENT OF THE UPPER URINARY TRACT CALCULUS

2012 ◽  
pp. 52-57
Author(s):  
Khoa Hung Nguyen ◽  
Dinh Khanh Le ◽  
Dinh Dam Le ◽  
Truong An Nguyen
Keyword(s):  
Shock Wave ◽  
Urinary Tract ◽  
Kidney Stones ◽  
Extracorporeal Shock Wave Lithotripsy ◽  
Shock Wave Lithotripsy ◽  
Upper Urinary Tract ◽  
Stone Size ◽  
Extracorporeal Shock Wave ◽  
Size Number ◽  
Urinary Tract Calculus

Introduction: The aim of this study is to assess the efficiency of extracorporeal shock wave lithotripsy (ESWL) in the treatment of residual kidney stones after the first treatment of the upper urinary tract calculus. Patients and Methods: 110 patients with residual kidney stones were treated with a MZ.ESWL.VI lithotripter. They were analyzed with regard to stone size, number of stones, number of ESWL sessions, retreatment rates, stone free rates. Results: 68,2% of patients became stone free within 3 months after ESWL with the average number of 3,44 sessions of treatment. No complication has occurred during all treatment. Conclusion: ESWL is an effective method in managing the residual kidney stones after the first treatment of the upper urinary tract calculus.

scholarly journals High-frequency jet ventilation is beneficial during shock wave lithotripsy utilizing a newer unit with a narrower focal zone

2013 ◽  
Vol 4 (5) ◽  
pp. 333
Author(s):  
Phillip Mucksavage ◽  
Wesley A. Mayer ◽  
Jeff E. Mandel ◽  
Keith N. Van Arsdalen
Keyword(s):  
Nous Avons ◽  
Total Energy ◽  
High Frequency ◽  
Anesthetic Techniques ◽  
Procedure Time ◽  
Jet Ventilation ◽  
Stone Size ◽  
High Frequency Jet Ventilation ◽  
Size Number ◽  
Focal Zone

Introduction: High-frequency jet ventilation (HFJV) during shockwave lithotripsy (SWL) has been reported using older lithotripsyunits with larger focal zones. We investigated how HFJV affectsthe clinical parameters of SWL using a newer lithotripsy unit witha smaller focal zone.Methods: We reviewed all patients who underwent SWL by asingle surgeon (KVA) from July 2006 until December 2007 withthe Siemens Lithostar Modularis (Siemens AG, Erlangen, Germany).Either HFJV or conventional anesthetic techniques were usedbased on the anesthesiologists’ preference. Preoperative imagingwas reviewed for stone size, number and location. Total operatingroom time, procedure time, number of shocks and total energydelivery were analyzed. Postoperative imaging was reviewed forstone-free rates.Results: A total of 112 patients underwent SWL with 80 undergoingconventional anesthesia, and 32 with HFJV. Age, body mass index,preoperative stone size and number were not significantly differentbetween the groups. The HFJV group required significantly lesstotal shocks (3358 vs. 3754, p = 0.0015) and total energy (115.8joules vs. 137.2 joules, p = 0.0015). Total operating room time,SWL procedure time and postoperative stone-free rates were notsignificantly different.Conclusions: Previous studies using older SWL units with largerfocal zones have demonstrated that HFJV can be effective in reducingtotal shocks and total energy. Our data is consistent with thesestudies, but also shows benefit with newer units that have narrowerfocal zones.Introduction : Le recours au jet-ventilation à haute fréquence(JVHF) pendant une lithotritie par ondes de choc (LOC) a étésignalé lors d’emploi d’anciens appareils de lithotritie à zonesfocales larges. Nous avons examiné comment le JVHF influe surles paramètres cliniques de la LOC lors de l’emploi d’un nouvelappareil de lithotritie avec zones focales étroites.Méthodologie : Nous avons passé en revue le dossier de tous lespatients qui ont subi une LOC réalisée par le même chirurgien(KVA) entre juillet 2006 et décembre 2007 à l’aide du LithostarModularis de Siemens (Siemens S.A., Erlangen, Allemagne). LeJVHF ou une technique classique d’anesthésie ont été utilisés,selon la préférence des anesthésistes. Les images obtenues avantl’intervention ont été analysées afin de déterminer la taille, lenombre et l’emplacement des calculs. Le temps total en salled’opération, la durée de l’intervention, le nombre d’ondes dechoc et la quantité totale d’énergie émise ont été analysés. Letaux d’absence de calculs après l’intervention a été obtenu à l’aided’images prises après l’intervention.Résultats : Au total, 112 patients ont subi une LOC; de ce nombre,80 ont reçu une anesthésie classique, et 32, une anesthésie parJVHF. L’âge, l’indice de masse corporelle, la taille et le nombredes calculs avant l’intervention n’étaient pas significativement différentsd’un groupe à l’autre. Le groupe sous JVHF a requis unnombre total significativement inférieur d’ondes de choc (3358contre 3754, p = 0,0015) et une quantité significativement moindred’énergie (115,8 joules contre 137,2 joules, p = 0,0015). Letemps total en salle d’opération, la durée de l’intervention et letaux d’absence de calculs après l’intervention étaient sensiblementles mêmes dans les deux groupes.Conclusions : Des études antérieures utilisant des appareils plusanciens de LOC avec des zones focales larges ont montré que leJVHF peut être efficace pour réduire le nombre total d’ondes dechoc et la quantité totale d’énergie requise. Les données de notreétude concordent avec celles de ces études, mais montrent aussiles avantages de recourir à des zones focales plus étroites.

Mitochondria in Cardiomyopathy: Alterations in Size, Number and Internal Structures

1968 ◽  
Vol 26 ◽  
pp. 126-127
Author(s):  
George Hug ◽  
William K. Schubert
Keyword(s):  
Heart Failure ◽  
Biochemical Analysis ◽  
Left Ventricular ◽  
Size Number ◽  
Internal Structures ◽  
Left Ventricular Outflow ◽  
Chest X Ray ◽  
Myocardial Fibers ◽  
Muscle Biopsies ◽  
Needle Liver Biopsy

A white boy six months of age was hospitalized with respiratory distress and congestive heart failure. Control of the heart failure was achieved but marked cardiomegaly, moderate hepatomegaly, and minimal muscular weakness persisted.At birth a chest x-ray had been taken because of rapid breathing and jaundice and showed the heart to be of normal size. Clinical studies included: EKG which showed biventricular hypertrophy, needle liver biopsy which showed toxic hepatitis, and cardiac catheterization which showed no obstruction to left ventricular outflow. Liver and muscle biopsies revealed no biochemical or histological evidence of type II glycogexiosis (Pompe's disease). At thoracotomy, 14 milligrams of left ventricular muscle were removed. Total phosphorylase activity in the biopsy specimen was normal by biochemical analysis as was the degree of phosphorylase activation. By light microscopy, vacuoles and fine granules were seen in practically all myocardial fibers. The fibers were not hypertrophic. The endocardium was not thickened excluding endocardial fibroelastosis. Based on these findings, the diagnosis of idiopathic non-obstructive cardiomyopathy was made.

Specimen Preparation for Clinical Applications of X-Ray Microanalysis

1990 ◽  
Vol 48 (2) ◽  
pp. 328-329
Author(s):  
J.D. Shelburne ◽  
G.M. Roomans
Keyword(s):  
Carbon Coating ◽  
Clinical Applications ◽  
Point Of View ◽  
Practical Significance ◽  
Sweat Test ◽  
Specimen Preparation ◽  
Tissue Preparation ◽  
X Ray ◽  
Gallbladder Stones ◽  
Clinical Problems

Proper preparative procedures are a prerequisite for the validity of the results of x-ray microanalysis of biological tissue. Clinical applications of x-ray microanalysis are often concerned with diagnostic problems and the results may have profound practical significance for the patient. From this point of view it is especially important that specimen preparation for clinical applications is carried out correctly.Some clinical problems require very little tissue preparation. Hair, nails, and kidney and gallbladder stones may be examined and analyzed after carbon coating. High levels of zinc or copper in hair may be indicative of dermatological or systemic diseases. Nail clippings may be analyzed (as an alternative to the more conventional sweat test) to confirm a diagnosis of cystic fibrosis. X-ray microanalysis in combination with scanning electron microscopy has been shown to be the most reliable method for the identification of the components of kidney or gallbladder stones.A quantitatively very important clinical application of x-ray microanalysis is the identification and quantification of asbestos and other exogenous particles in lung.

MANAGEMENT OF BLADDER STONE WITH HOLMIUM-YAG LASER AT KARDINAH HOSPITAL TEGAL

2020 ◽  
Vol 27 (1) ◽  
pp. 1-4
Author(s):  
Fatan Abshari ◽  
Zulfikar Ali
Keyword(s):  
General Hospital ◽  
Laser Energy ◽  
Major Complication ◽  
Mucosal Injury ◽  
Cross Sectional Study ◽  
Stone Size ◽  
Cross Sectional ◽  
Yag Laser ◽  
Bladder Stones ◽  
Large Size

Objective: Transurethral lithotripsy using Holmium-YAG laser has been reported to be beneficial in breaking up bladder stones with large size (>4cm in diameter) with lower risk of mucosal injury and hematuria. The aim of this study is to evaluate the utilization of Holmium-YAG laser for the management of bladder stones at Kardinah General Hospital, Tegal. Material & Methods: This is a cross-sectional study conducted from January 2017 to March 2017. Patient’s demography, which included age, sex, length of surgery, stone size, and laser’s energy count were recorded. Results: We included 120 patients in this study. Mean of patients age in this study was 51.93 years old with age range were 41-85 years old. Most of the patients were male (109 vs 11) with a mean size of stone 25.09 ± 3.04 mm. Length of surgery ranges from 15 to 75 minutes and mean energy of the laser 28.99 ± 19.34 kJ. There was 100% stone’s clearance following surgery with no major complication occurred. Conclusion: Holmium-YAG laser is effective in managing bladder stones at Kardinah General Hospital particularly for large size stones. Length of surgery and energy of laser used depend on the stone size in which bigger stone size is associated with longer surgery time and bigger laser energy needed.

Piezoelectric Extracorporeal Lithotripsy of Gallbladder Stones: New Inclusion Criteria

1994 ◽  
Vol 31 (2) ◽  
pp. 261
Author(s):  
Yong Hyun Park ◽  
Byung Ihn Choi ◽  
Yong Bum Yoon ◽  
Joon Koo Han ◽  
Man Chung Han ◽  
...  
Keyword(s):  
Inclusion Criteria ◽  
Gallbladder Stones ◽  
Extracorporeal Lithotripsy

Structural Characterization of Gallbladder Stones Using Energy Dispersive X-ray Spectroscopy and X-ray Diffraction

2018 ◽  
Vol 21 (7) ◽  
pp. 495-500 ◽  
Author(s):  
Hassan A. Almarshad ◽  
Sayed M. Badawy ◽  
Abdalkarem F. Alsharari
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Energy Dispersive ◽  
Spectroscopic Techniques ◽  
X Ray Diffraction ◽  
Major Health Problem ◽  
X Ray ◽  
Gallbladder Stones ◽  
Pure Cholesterol ◽  
Scanning Electron

Aim and Objective: Formation of the gallbladder stones is a common disease and a major health problem. The present study aimed to identify the structures of the most common types of gallbladder stones using X-ray spectroscopic techniques, which provide information about the process of stone formation. Material and Method: Phase and elemental compositions of pure cholesterol and mixed gallstones removed from gallbladders of patients were studied using energy-dispersive X-ray spectroscopy combined with scanning electron microscopy analysis and X-ray diffraction. Results: The crystal structures of gallstones which coincide with standard patterns were confirmed by X-ray diffraction. Plate-like cholesterol crystals with laminar shaped and thin layered structures were clearly observed for gallstone of pure cholesterol by scanning electron microscopy; it also revealed different morphologies from mixed cholesterol stones. Elemental analysis of pure cholesterol and mixed gallstones using energy-dispersive X-ray spectroscopy confirmed the different formation processes of the different types of gallstones. Conclusion: The method of fast and reliable X-ray spectroscopic techniques has numerous advantages over the traditional chemical analysis and other analytical techniques. The results also revealed that the X-ray spectroscopy technique is a promising technique that can aid in understanding the pathogenesis of gallstone disease.

Life cycles of the rhizocephalan Boschmaella japonica Deichmann & Høeg, 1990 (Cirripedia: Chthamalophilidae) and its host barnacle Chthamalus challengeri Hoek, 1883 (Cirripedia: Chthamalidae)

2020 ◽  
Vol 40 (6) ◽  
pp. 825-832 ◽  
Author(s):  
Miku Yabuta ◽  
Jens T Høeg ◽  
Shigeyuki Yamato ◽  
Yoichi Yusa
Keyword(s):  
Life Cycle ◽  
Brood Size ◽  
Life Cycles ◽  
The Body ◽  
Egg Volume ◽  
Size Number ◽  
Rhizocephalan Barnacles ◽  
Western Japan ◽  
Upper Intertidal ◽  
Chthamalus Challengeri

Abstract Although parasitic castration is widespread among rhizocephalan barnacles, Boschmaella japonica Deichmann & Høeg, 1990 does not completely sterilise the host barnacle Chthamalus challengeri Hoek, 1883. As little information is available on the relationships with the host in “barnacle-infesting parasitic barnacles” (family Chthamalophilidae), we studied the life cycles of both B. japonica and C. challengeri and the effects of the parasite on the host reproduction. Specimens of C. challengeri were collected from an upper intertidal shore at Shirahama, Wakayama, western Japan from April 2017 to September 2018 at 1–3 mo intervals. We recorded the body size, number of eggs, egg volume, and the presence of the parasite for each host. Moreover, settlement and growth of C. challengeri were followed in two fixed quadrats. Chthamalus challengeri brooded from February to June. The prevalence of B. japonica was high (often exceeded 10%) from April to July, and was rarely observed from September to next spring. The life cycle of the parasite matched well with that of the host. The parasite reduced the host’s brooding rate and brood size, to the extent that no hosts brooded in 2018.

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