[Caplan's syndrome in marble workers as occupational disease].

Rheumatoid pneumoconiosis is an uncommon combination of occupational lung disease caused by exposure to harmful silica dust with rheumatoid inflammation of the joints, rheumatoid arthritis, with an autoimmune background. Until now, the disease was observed mostly among coal and gold miners and granite workers. Written documents on the theme are summarized.

Observation of a narrow charm-strange meson D(+)(sJ)(2632)-->D(+)(s)eta and D(0)K(+).

We report the first observation of a charm-strange meson D(+)(sJ)(2632) at a mass of 2632.5+/-1.7 MeV/c(2) in data from SELEX, the charm hadro-production experiment E781 at Fermilab.

First observation of the doubly charmed baryon Xi(+)(cc).

We observe a signal for the doubly charmed baryon Xi(+)(cc) in the charged decay mode Xi(+)(cc)-->Lambda(+)(c)K-pi(+) in data from SELEX, the charm hadroproduction experiment at Fermilab. We observe an excess of 15.9 events over an expected background of 6.

Precision measurements of the lambda(+)(c) and D0 lifetimes.

We report new precision measurements of the lifetimes of the Lambda(+)(c) and D0 from SELEX, the charm hadroproduction experiment at Fermilab. Based upon 1630 Lambda(+)(c) and 10 210 D0 decays we observe lifetimes of tau[Lambda(+)(c)] = 198.1+/-7.

Effect of exposure to lead on postural control in workers.

Objectives: To examine the effect of lead on postural control of workers who have been exposed to lead.

Methods: 63 Male, lead battery workers mean (SD) age 41.0 (7.

Observation of the Cabibbo-Suppressed Decay Ξ_{c}^{+} → pK^{-}π^{+}.

We report the first observation of the Cabibbo-suppressed charm baryon decay Ξ_{c}^{+}→pK^{-}π^{+}. We observe 150±22±5 events for the signal. The data were accumulated using the SELEX spectrometer during the 1996-1997 fixed target run at Fermilab, chiefly from a 600 GeV/c Σ^{-} beam.

Seronegativity to varicella-zoster virus in a tertiary care obstetric population.

Objective: To determine the seronegativity rate of varicella-zoster virus in a tertiary care obstetric population.

Methods: At their initial prenatal visit, all obstetric patients at Westchester County Medical Center have a varicella-zoster virus IgG antibody titer (Varicella Stat; Biowhittaker, Inc., Walkersville, MD) performed.

Correlation of neonatal nucleated red blood cell counts in preterm infants with histologic chorioamnionitis.

Objective: The aim of this study was to compare the neonatal nucleated red blood cell counts in preterm infants in the presence and absence of clinical and histologic chorioamnionitis while controlling for gestational age and birth weight percentile.

Study Design: Nucleated red blood cell counts were obtained from preterm infants delivered after preterm labor or preterm premature rupture of membranes. Patients were divided on the basis of clinical and histologic chorioamnionitis.

Intrauterine transmission of hepatitis A virus.

Background: Hepatitis A is a common, self-limited disease transmitted by fecal-oral contamination.

Case: A 23-year-old woman, para 2-0-0-2, developed hepatitis A at 20 weeks' gestation. At 27 weeks, ultrasound revealed polyhydramnios and fetal ascites.

Acute myocardial infarction in pregnancy with subsequent medical and surgical management.

Background: Myocardial infarction is a rare event in pregnancy that requires medical stabilization with possible surgical interventions.

Case: A 37-year-old woman developed an anterior wall myocardial infarction secondary to severe coronary artery disease during the early third trimester of pregnancy. The patient was managed with multiple modalities to stabilize her condition and prolong the gestation.

Relationship between neonatal nucleated red blood cell counts and hypoxic-ischemic injury.

Objective: To determine if nucleated red blood cell counts(RBC) are different in infants who develop intraventricular hemorrhage and periventricular leukomalacia in the first week of life and in those who do not.

Methods: Nucleated RBCs were obtained from 441 infants weighing more than 499 g and less than 1751 g. Neonatal cranial fontanel sonography was performed on days 3 and 7 of life, and neonates were divided into those with normal and abnormal sonographic findings.

Recurrent chorioamnionitis and second-trimester abortion because of an enterouterine fistula.

Background: Chorioamnionitis, a common cause of second-trimester abortion, is usually secondary to an ascending infection. Recurrent chorioamnionitis with second-trimester abortion secondary to an occult enterouterine fistula has not been reported previously.

Case: A 26-year-old Indian woman, para 0-0-2-0, presented with two spontaneous second-trimester losses.

Epidemiologic predictors of hepatitis C virus infection in pregnant women.

Objective: To identify sensitive epidemiologic predictors of a positive hepatitis C virus antibody test in asymptomatic persons, and to compare the cost of testing only persons with an epidemiologic predictor to that of universal screening.

Methods: Seventeen hundred consecutive pregnant women were tested by enzyme-linked immunosorbent assay for antibody to hepatitis C virus. Seventy-five subjects tested positive and were compared with 257 pregnant women who tested negative.

Failure to detect vertical transmission of hepatitis C virus.

Objective: To search for transmission of hepatitis C virus (HCV) from infected mothers to their infants.

Design: Prospective clinical, serologic, and molecular biologic follow-up (at least 3 months) of the infants of mothers with anti-HCV antibody.

Setting: A county hospital providing primary and referral care in high-risk obstetrics (perinatology).

Comparison of nifedipine and ritodrine for the treatment of preterm labor.

Treatment of preterm labor with beta-sympathomimetics has been questioned because of the many maternal and fetal complications associated with its use. Nifedipine, a calcium antagonist, has been shown to suppress uterine activity in vitro and in vivo. A randomized prospective study was performed to compare the efficacy of nifedipine to ritodrine in the suppression of preterm labor.

Prophylactic insulin in gestational diabetes.

Patients with gestational diabetes were divided into two groups according to the results of three-hour oral glucose tolerance tests. Those with fasting euglycemia (serum glucose 95 mg/dL or lower) on oral glucose tolerance test (class A) were treated with diet alone, whereas those with fasting hyperglycemia on oral glucose tolerance test (class A/B) were treated with both diet and insulin (15 U neutral protamine Hagedorn insulin before breakfast). The frequency of macrosomia (birth weight more than 4000 g) among class A/B gestational diabetics was 16.

Abnormal glucose screening tests in pregnancy: a risk factor for fetal macrosomia.

Of 2276 patients who underwent screening for gestational diabetes mellitus, 1854 (81.5%) had normal glucose screening tests after a 50-g carbohydrate load (serum glucose below 135 mg/dL). Three hundred fifty-seven patients (15.

Hydrocephalic fetus in an abdominal pregnancy.

We present an unusual case of an abortion at 20 weeks elected after a diagnosis of fetal hydrocephalus and spina bifida. Unsuccessful attempts at abortion with prostaglandin suppositories ultimately led to a diagnosis of abdominal pregnancy. This is the first reported case of an abdominal pregnancy discovered during an abortion that was elected because of an anomaly identified by ultrasound.