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  • 1
    ISSN: 1435-1803
    Keywords: Trimetazidine ; infarct ; myocardium ; reperfusion ; recovery
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Following a 45-min period of coronary occlusion the myocardial infarct that developed after 24 h of blood reperfusion in the rabbit heart was studied in three groups of animals: controls (n=7), and those pretreated with 3 mg·kg−1 of the piperazine derivative, trimetazidine (n=7) or propranolol at 0.3 mg·kg−1 (n=6). Twenty-four hours after coronary artery ligation for 45 min infarct size was measured in myocardial slices using trinitrophenyl-tetrazolium staining, and the “area at risk” was determined by injection of zinc/cadmium particles and delineated by imaging under fluorescent light the areas of tissue that did not fluoresce. The range of “area at risk” was similar in all of the groups. There was a significant reduction in the size of infarct that developed in the trimetazidine treated group when compared with the controls. In the propranolol treated group there was a slight reduction in infarct size when compared to control, but this was less than in the trimetazidine treated group and did not reach statistical significance. It is concluded that pretreatment with trimetazidine in the blood perfused rabbit heart is effective in reducing myocardial infarct size.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The importance of predators in controlling the densities of infaunal (〉0.5 mm) organisms was investigated in the mesohaline region of the Upper Chesapeake Bay (USA) using field experiments. The role of predators in controlling infaunal density and community characteristics varied with habitat type, season (i.e., predator abundance) and developmental or successional stage of the community. Few infaunal species were adversely affected by predator exclusion. Species that increased greatly in abundance in the absence of predators (e.g. Eteone heteropoda, Streblospio benedicti, Nereis succinea, and juvenile Macoma balthica and Mya arenaria) lived near the sediment-water interface and had major population pulses from fall through spring. Species whose abundances increased moderately or were not affected by predator exclusion were deeper burrowing organisms (e.g. Heteromastus filiformis and adult Mya arenaria), or were relatively small organisms (e.g. Paraprionospio pinnata, Scolecolepides viridis and Peloscolex gabriellae) whose principal predators could be other members of the infauna. Competition did not appear to be an important factor controlling infaunal density in these experiments.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Marine biology 27 (1974), S. 191-196 
    ISSN: 1432-1793
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Six species of benthic diatoms and a natural benthic diatom community were cultured in flasks on a variety of sediments. Diatom species which secreted large quantities of mucilage were effective sediment stabilizers. These mucilage-secreting species significantly reduced resuspension and retarded laminar flow of the sediments when the culture flasks were agitated. Diatom species which secreted little or no mucilage were not effective sediment stabilizers. These non-mucilage-secreting species did not significantly effect resuspension or laminar flow of the sediments when the culture flasks were agitated. A sediment stabilizing mechanism based on the secretion of mucilage by pennate benthic diatoms is proposed. The effect such a process may have on distributional patterns of benthic invertebrates in areas where extensive diatom or other microalgal films occur is discussed.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 12 (1997), S. 497-500 
    ISSN: 1437-9813
    Keywords: Key words Focal foveolar hyperplasia ; Infant Infantile hypertrophic pyloric stenosis ; Ultrasound scan
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Idiopathic focal foveolar hyperplasia (FFH) is a rare cause of gastric outlet obstruction in infants. We present two cases, including the first reported association with infantile hypertrophic pyloric stenosis. The diagnostic ultrasound appearance of FFH is described. Optimal treatment is surgical excision of the involved mucosa with pyloroplasty or pyloromyotomy.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 13 (1998), S. 350-351 
    ISSN: 1437-9813
    Keywords: Key words Laparoscopic surgery ; Perioperative hypothermia ; Pyloromyotomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Perioperative heat loss is a potentially serious complication of surgery in infants. The influence of laparoscopic surgery on perioperative hypothermia has not previously been documented. We reviewed heat loss in 26 infants undergoing laparoscopic pyloromyotomies compared with 42 control patients having the standard open procedure over the same time period. The mean fall in temperature in the laparoscopic group was −0.69 °C compared with −0.47 °C in the open group. This difference was not significant, with a P value of 0.077. This may reflect the small sample size and the relatively short duration of this procedure with few instrument changes. There was a trend for increased heat loss in the laparoscopic group, which might have implications for longer and more complex laparoscopic procedures in infants.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 11 (1996), S. 47-49 
    ISSN: 1437-9813
    Keywords: Fallopian tube ; Torsion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A case is reported of an isolated torsion of the left fallopian tube in a 12-year-old premenarchal girl, and the relevant literature is reviewed. This would seem to be an infrequent cause of acute abdominal pain in girls, and is rarely diagnosed preoperatively. The correct treatment is detorsion of a viable tube, or salpingectomy if ischaemia and necrosis have occurred.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 12 (1997), S. 353-355 
    ISSN: 1437-9813
    Keywords: Key words Splenic cyst ; Partial splenectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Benign, non-parasitic splenic cysts are an uncommon cause of splenomegaly in children. Potentially they may enlarge, causing pain, rupture, or haemorrhage, or become infected. Traditional management has been total splenectomy. We report two cases of true epithelial-lined splenic cysts successfully treated by partial splenectomy using an oxidised cellulose gauze ‘sandwich' technique.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 12 (1997), S. 497-500 
    ISSN: 1437-9813
    Keywords: Focal foveolar hyperplasia ; Infant Infantile hypertrophic pyloric stenosis ; Ultrasound scan
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Idiopathic focal foveolar hyperplasia (FFH) is a rare cause of gastric outlet obstruction in infants. We present two cases, including the first reported association with infantile hypertrophic pyloric stenosis. The diagnostic ultrasound appearance of FFH is described. Optimal treatment is surgical excision of the involved mucosa with pyloroplasty or pyloromyotomy.
    Type of Medium: Electronic Resource
    Location Call Number Limitation Availability
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 12 (1997), S. 353-355 
    ISSN: 1437-9813
    Keywords: Splenic cyst ; Partial splenectomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Benign, non-parasitic splenic cysts are an uncommon cause of splenomegaly in children. Potentially they may enlarge, causing pain, rupture, or haemorrhage, or become infected. Traditional management has been total splenectomy. We report two cases of true epithelial-lined splenic cysts successfully treated by partial splenectomy using an oxidised cellulose gauze ‘sandwich’ technique.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Pediatric surgery international 15 (1999), S. 519-520 
    ISSN: 1437-9813
    Keywords: Key words Synchronous ; Torsion ; Testicular appendage
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We describe a case of synchronous torsion of testicular appendages, a previously unreported cause of bilateral scrotal pain. Exploration and excision was curative.
    Type of Medium: Electronic Resource
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