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排序方式: 共有1047条查询结果,搜索用时 31 毫秒
71.
Placental histopathology of congenital syphilis 总被引:10,自引:0,他引:10
Sheffield JS Sánchez PJ Wendel GD Fong DW Margraf LR Zeray F McIntire DD Barton Rogers B 《Obstetrics and gynecology》2002,100(1):126-133
OBJECTIVE: To evaluate the contribution of placental histopathology to the diagnosis of congenital syphilis. METHODS: From January 1, 1986, through December 31, 1998, all pregnant women presenting to a large, urban Dallas County labor and delivery unit with untreated syphilis at delivery and who had placental evaluation performed were identified. Women were clinically staged, and the infants were evaluated for congenital syphilis using a standard protocol. Each placenta was evaluated by two independent pathologists. Histologic characteristics of the placenta related to congenital syphilis in live-born and stillborn infants were then analyzed. RESULTS: Sixty-seven women met the study criteria: 33 (49%) stillborn and 18 (27%) live-born infants with congenital syphilis, 15 (22%) uninfected live-born infants, and one uninfected stillborn fetus diagnosed by current criteria. There were no differences between the groups with regard to demographic characteristics, prenatal care, or stage of syphilis. Stillborn infants were more likely to deliver preterm (P <.001). Controlling for gestational age, histopathology revealed necrotizing funisitis, villous enlargement, and acute villitis associated with congenital syphilis. Erythroblastosis was more common in stillborn infants with congenital syphilis than all live-born infants (odds ratio 16, 95% confidence interval 1, 370). The addition of histologic evaluation to conventional diagnostic evaluations improved the detection rate for congenital syphilis from 67% to 89% in live-born infants, and 91% to 97% in stillborn infants. CONCLUSION: Our results show that histopathologic examination of the placenta is a valuable adjunct to the contemporary diagnostic criteria used to diagnose congenital syphilis. 相似文献
72.
Dashe JS Sheffield JS Olscher DA Todd SJ Jackson GL Wendel GD 《Obstetrics and gynecology》2002,100(6):1244-1249
OBJECTIVE: To determine whether maternal methadone dosage affects duration and degree of neonatal narcotic withdrawal. METHODS: This was a retrospective cohort study of pregnant women with opioid addiction who delivered live-born singletons between April 1990 and April 2001. Inpatient detoxification or outpatient methadone maintenance therapy was offered. Women who had a positive drug screen or whose neonate tested positive for opioids were considered to be supplementing. We evaluated indices of neonatal withdrawal according to the maximum daily methadone dosage in the last week of pregnancy. RESULTS: Seventy women with opioid addiction were followed. Median methadone dosage was 20 mg (range 0-150 mg), and 32 infants (46%) were treated for narcotic withdrawal. Among women who received less than 20 mg per day, 20-39 mg per day, and at least 40 mg per day of methadone, treatment for withdrawal occurred in 12%, 44%, and 90% of infants, respectively (P < 0.02). Methadone dosage was also correlated with both duration of neonatal hospitalization and neonatal abstinence score (r(s) =.70 and.73 respectively, both P <.001). Neonates were more likely to experience withdrawal if their mothers were supplementing with heroin, 68% versus 35% (P =.01). Regardless of supplementation, there was a significant relationship between methadone dosage and neonatal withdrawal (P <.05). CONCLUSION: Maternal methadone dosage was associated with duration of neonatal hospitalization, neonatal abstinence score, and treatment for withdrawal. Heroin supplementation did not alter this dose-response relationship. In selected pregnancies, lowering the maternal methadone dosage was associated with both decreased incidence and severity of neonatal withdrawal. 相似文献
73.
Gepke?VisserEmail author Jan?Peter?Rake Philippe?Labrune James?V.?Leonard Shimon?Moses Kurt?Ullrich Udo?Wendel G.?Peter?A.?Smit 《European journal of pediatrics》2002,161(1):S120-S123
Life expectancy in glycogen storage disease type 1 (GSD-1) has improved considerably. Its relative rarity implies that no
metabolic centre has experience of large series of patients and therefore experience with long-term management and follow-up
at each centre is limited. There is wide variation in methods of dietary and pharmacological treatment. Based on data from
the European Study on Glycogen Storage Disease Type 1, discussions within this study group together with those at the International
SHS Symposium ‘Glycogen Storage Disease Type I and II: Recent Developments, Management and Outcome’, Fulda, Germany (2000)
and on data from the literature, a series of guidelines were drawn up.Conclusions: the following guidelines for the management of patients with glycogen storage disease type 1b are in addition to those general
guidelines for glycogen storage disease type 1 and address specific problems related to neutropenia and neutrophil dysfunction.
Published online: 13 September 2002 相似文献
74.
We report a Caucasian female who was diagnosed with glycogen storage disease type Ib (GSD-Ib) at the age of 4 months and whose clinical course was complicated by neutropenia and very frequent episodes of infection, including tonsillopharyngitis. Recurrent group A streptococcal infections resulted in multiple episodes of extremely high serum levels of antibodies to streptolysin O (5,000 IU/ml) and DNAse B (6,000 IU/ ml). At the age of 14 years she presented with carditis, migratory arthritis, fever, elevated erythrocyte sedimentation rate as well as serological evidence for recent streptococcal infection providing a diagnosis of acute rheumatic fever. CONCLUSION: the occurrence of these two very rare disorders in our patient may indicate that this association is not coincidental because neutrophil dysfunction in glycogen storage disease type Ib may have predisposed this patient to acute rheumatic fever due to increased susceptibility to group A streptococcal infections. aberrant glycogenolysis and gluconeogenesis, neutropenia and neutrophil dysfunction are regular findings in GSD-Ib. Neutropenia and neutrophil dysfunction in patients with GSD-Ib are due to defects in myeloid maturation, impaired neutrophil motility, defective chemotaxis and phagocytosis and diminished bactericidal activity resulting in recurrent bacterial infections. 相似文献
75.
76.
This article discusses the political and policy implications of a potential rating system of community capacity for health improvement. Evidence suggests that such a rating system will have little effect in the current health care environment unless it is directly related to the health care dollar. Community change agents and stakeholders, including the growing population of older adults, will perceive a rating system to have value only if the defined purpose meets their interests and needs, and if the rating system results prove useful for decisions that affect the bottom line in working on issues like health improvement and capacity. 相似文献
77.
Are there gender differences in choosing a surgical career? 总被引:5,自引:0,他引:5
BACKGROUND: Interest in general surgery has declined among US medical students, with the increasing number of female medical students being cited as a causative factor. This study evaluates factors related to choosing a general surgery career and determines if they differ between men and women. METHODS: A survey assessing factors that contributed to career choice was distributed to a 2002 graduating medical school class to be returned with their match lists. Students were asked, from a given list, which factors influenced their career choice. Those students who did not pursue a career in general surgery were asked what factors contributed to that decision. The results were stratified by gender. RESULTS: Of 120 surveys, 54 women and 48 men responded (response rate=85%). The reason most commonly cited for a particular career choice by both men and women was the intellectual challenge of the field, chosen by 41 men (85%) and 46 women (85%). The two next most common reasons cited by male students were an elective in the field and practice lifestyle (40 of 48 respondents, or 82%, for each). Practice lifestyle was a contributing factor for 37 of the 54 women, or 69% (P=.132). The other reasons most commonly cited by women were an elective and faculty in the chosen field (46 of 54, or 85%, and 38 of 54, or 70%). Thirty-seven of the 48 men, or 77% (P=.588), felt that faculty in the field contributed to their career choice. The most commonly cited reasons for not choosing general surgery--residency lifestyle, practice lifestyle, and length of training--were the same for both groups. CONCLUSIONS: Fewer women than men considered practice lifestyle in choosing their medical career. However, both men and women considered lifestyle, elective in the field of choice, and faculty important in career choice. In 2002, men and women had the same reasons for pursuing a career in general surgery or seeking another specialty. 相似文献
78.
Introducing a new recruitment approach to sample collection for genetic association studies in opioid dependence. 总被引:2,自引:0,他引:2
Petra Franke Birgit Wendel Michael Knapp Sibylle G Schwab Daniela Neef Wolfgang Maier Dieter B Wildenauer Margret R Hoehe 《European psychiatry》2003,18(1):18-22
OBJECTIVE: In a modified case-control association study we tested the assumption that two polymorphisms (A(118)G in exon 1 and IVS2+31 in intron 2) of the human mu-opioid receptor gene (OPRM1) confer susceptibility to opioid dependence. METHODS: In contrast to classical case-control studies both groups, opioid dependent cases and non-opioid dependent controls were recruited from individuals who have had access to drugs including opioids and who had been sentenced for violation of the "Dangerous Drugs Act" in Germany. RESULTS: For the two allelic variants of OPRM1 under study we did not find evidence for association with opioid dependence. CONCLUSIONS ;Despite absence of association we think that this recruitment approach introduced here, is useful since it putatively offers a more adequate matching for case-control association studies of opioid dependent individuals. 相似文献
79.
Myocardial troponin T release is associated with enhanced fibrinolysis in patients with acute coronary syndromes 总被引:1,自引:0,他引:1
Ehlers R Büttcher E Kazmaier S Beyer ME Helber U Szabo S Wendel HP Hoffmeister HM 《Thrombosis and haemostasis》2001,86(5):1176-1180
Patients with acute coronary syndromes (ACS) frequently present with signs of disturbed fibrinolysis. The present study investigates the correlation of alterations in the fibrinolytic system and the amount of myocardial damage characterized by troponin release. In 85 patients with ACS markers of plasmin activation, plasminogen activator system and troponin T (TnT) were measured initially and after 48 h. Patients with TnT release (> or = 0.01 microg/l) at admission had higher TPA levels than those without release (10.2+/-0.7 ng/ml vs. 7.6+/-0.5 ng/ml; p <0.01). Additionally, patients with positive TnT had higher D-dimer levels initially (457+/-39 ng/ml vs. 316+/-22 ng/ml; p <0.01) and 48 h later (451+/-42 ng/ml vs. 275+/-37 ng/ml; p <0.01). The association of myocardial damage with a prothrombotic state and an enhanced fibrinolysis may explain the high prognostic value of troponin measurements in respect to future coronary events. 相似文献
80.