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  • 1
    Electronic Resource
    Electronic Resource
    Strut interlocking of Titanium Greenfield vena cava filters and its effect on clot capturing: Anin vitro study (1994)
    Springer
    CardioVascular & interventional radiology 17 (1994), S. 204-206 
    Details
    ISSN: 1432-086X
    Keywords: Filter, complications ; Pulmonary embolism
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Purpose To determine the influence of filter leg-interlocking on filtering efficiency of titanium Greenfield inferior vena cava filters in anin vitro model. Methods Titanium Greenfield filters (TGF) were placed in an inferior vena cava (IVC) flow phantom with no interlocking legs, or with one or two pairs of legs interlocked. Clot emboli of varying sizes were introduced into the stream of flow, and the frequency of successful captures by the deformed filters was recorded. Results Interlocking filter legs diminished the filtering efficiency of the TGF by up to 80% with the flow phantom in a horizontal position; no such compromise existed when the phantom was in a vertical position. Conclusion When leg interlocking is verified radiographically, the filtering efficiency of the TGF is reduced, and placement of a second IVC filter may be indicated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00571535
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  • 2
    Electronic Resource
    Electronic Resource
    Percutaneous retrieval of a misplaced titanium Greenfield filter (1994)
    Springer
    CardioVascular & interventional radiology 17 (1994), S. 110-112 
    Details
    ISSN: 1432-086X
    Keywords: IVC filter, complications ; Retrieval ; Inferior vena cava ; Interventional procedure ; Foreign body
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Vena caval filters are considered permanent indwelling devices. Occasionally, malposition of a filter prompts a desire for its removal. We report a method of percutaneous retrieval of a titanium Greenfield filter by snare.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00193928
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  • 3
    Electronic Resource
    Electronic Resource
    Vesicoureteric reflux in the newborn: relationship to fetal renal pelvic diameter (1997)
    Springer
    Pediatric nephrology 11 (1997), S. 610-616 
    Details
    ISSN: 1432-198X
    Keywords: Key words: Vesicoureteric reflux ; Prenatal ultrasound ; Newborn infant ; Screening ; Radionuclide imaging
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. There has been a low yield of primary vesicoureteric reflux (VUR) from screening the fetal urinary tract during obstetric sonography. We sought to determine whether changing the cut-off level of fetal renal pelvic diameter from 10 mm to 4 mm would improve the yield of VUR. In a prospective community-based study, a fetal renal pelvic diameter of 4 mm or more on a transverse view of the fetal renal hilum at obstetric sonography after 16 weeks’ gestation was found in 426 fetuses from 9,800 consecutive pregnancies. After birth, renal sonography was performed on 386 of the 426 babies. Of the 386 babies, 264 (187 boys) had a voiding cystourethrogram (VCUG) at a mean age of 9 weeks. Primary VUR was detected in 33 (16 boys) of the 264 infants (13%), and secondary VUR in another 5 (2%). Only 5 of the 33 (15%) babies with primary VUR would have been detected if a cut-off point of 10 mm for fetal renal pelvic diameter had been used. The prevalence of reflux was similar at each cut-off level of antenatal renal pelvic diameter from 4 to 10 mm. Neither calyceal nor ureteric dilatation was helpful in differentiating those with from those without VUR. The postnatal renal sonogram did not distinguish whether reflux was present or not. More infants with primary VUR, particularly girls, were found by changing the cut-off point for fetal renal pelvic diameter from 10 mm to 4 mm, and performing a VCUG on all such infants even if the postnatal renal sonogram was normal. Of the 33 infants with primary VUR, 9 (27%, 5 boys) had an abnormal dimercaptosuccinic acid scan. Our findings support the screening of the obstetric population for a fetal renal pelvic diameter of 4 mm or more, and then investigating the infants for VUR after birth.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s004670050348
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  • 4
    Electronic Resource
    Electronic Resource
    Gallbladder Volume (Comparison of Diabetics and Controls) (1998)
    Springer
    Digestive diseases and sciences 43 (1998), S. 344-348 
    Details
    ISSN: 1573-2568
    Keywords: GALLSTONES ; GALLBLADDER VOLUME ; DIABETES
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Diabetics are known to have an increasedprevalence of gallstones. The aim of this study was toinvestigate whether diabetics have increased gallbladdervolumes that would predispose to stasis, nucleation of cholesterol crystals, and gallstoneformation. The gallbladder volume of 271 diabeticsubjects and 277 controls was determined by ultrasoundusing the ellipse formula. Gallbladder volume was alsodetermined by the sum of the cylinders method in 143 caseswith a strong correlation (r = 0.89) between the twomethods. Using analysis of variance, gallbladder volumewas influenced by both diabetic type (NIDDM 33.68 cm3, IDDM = 26.84 cm3,controls 29.05 cm3; P = 0.018) and thepresence of gallstones (gallstones 32.04 cm3,no gallstones 27.58 cm3; P = 0.018). Thevariation in gallbladder volume between NIDDM, IDDM, andcontrol subjects was influenced by the presence ofgallstones (P = 0.024, interaction term from ANOVA).Significant differences (P 〈 0.001) were only foundbetween NIDDM vs IDDM and NIDDM vs control in thenongallstone group (NIDDM 34.33 cm3, IDDM = 25.08cm3, control = 25.17 cm3). Maleshad significantly larger gallbladder volumes thanfemales: 31.98 cm3 vs 27.74 cm3 (P= 0.023). After the inclusion of BMI, HDL cholesterol, triglyceride, and age in a statistical modelwith gender and diabetic type in those withoutgallstones, significant differences were still foundbetween NIDDM and IDDM (P = 0.013) and NIDDM andcontrols (P = 0.005), demonstrating that NIDDM is anindependent predictor for increased gallbladdervolume.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1023/A:1018810523399
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  • 5
    Electronic Resource
    Electronic Resource
    Prevalence of gallbladder disease in diabetes mellitus (1996)
    Springer
    Digestive diseases and sciences 41 (1996), S. 2222-2228 
    Details
    ISSN: 1573-2568
    Keywords: gallstones ; prevalence risk factors ; diabetes
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A study was undertaken to compare the prevalence of gallstone disease (gallstones observed on ultrasound or history of cholecystectomy) in 308 diabetics and 318 controls. There was a higher prevalence of gallstone disease (GSD) in diabetics (32.7%) compared to controls (20.8%;P〈0.001 chi-squared test). However, when gender was taken into account, the difference was only significant in females (diabetics 41.8% versus controls 23.1%;P〈0.001). Analysis by type of diabetes revealed that subjects with non-insulin-dependent diabetes mellitus (NIDDM) had a higher prevalence of GSD than controls for both genders: males—controls 18.1%, NIDDM 33.3% (P〈0.05), IDDM 15.6% ns; females—controls 23.1%, NIDDM 48.6% (P〈0.001), IDDM 36.3% (P〈0.05). On univariate analysis the following risk factors were associated with gallstones (P〈0.1): increased age, body mass index (BMI), triglycerides, LDL cholesterol, decreased HDL cholesterol, alcohol intake, family history of GSD, and female parity 〉3. Using stepwise multiple logistic regression, the following variables were identified as independently predictive of gallstones for each gender/diabetic combination: Males—NIDDM (N=54), increased age, and decreased HDL; IDDM (N=90), age and family history; Females—NIDDM (N=74), increased age, diabetes, increased BMI, and decreased alcohol; IDDM (N=91), increased BMI, age, decreased alcohol and family history. The proportion of subjects who underwent cholecystectomy was higher in females (46.7%) compared to males (21.7%;P〈0.01) but there were no differences between diabetics and controls in either sex. In conclusion, there was a higher prevalence of GSD in diabetics compared to controls. However, GSD is multifactorial and only in NIDDM females was diabetes an independent risk factor. The proportion of diabetics and controls with GSD who underwent cholecystectomy was equivalent.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02071404
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