The New England journal of medicine
-
Surveillance by repeated colonoscopy is currently recommended for patients with colorectal adenomas. We assessed the long-term risk of colorectal cancer after rigid-instrument sigmoidoscopy and polypectomy in 1618 patients with rectosigmoid adenomas (tumor of the rectum or distal sigmoid colon) who did not undergo surveillance. A total of 22,462 person-years of observation were accrued (mean, 14 years per patient). ⋯ Follow-up colonoscopic examinations may be warranted in patients with tubulovillous, villous, or large adenomas in the rectosigmoid, particularly if the adenomas are also multiple. In patients with only a single, small tubular adenoma that is only mildly or moderately dysplastic (43 percent of our series), however, surveillance may not be of value because the risk of cancer is so low.
-
Intrauterine transmission of cytomegalovirus (CMV) can occur whether a mother has prior immunity or acquires CMV for the first time during pregnancy. The degree of protection afforded an infected infant by the presence of antibody in the mother before conception is uncertain. ⋯ The presence of maternal antibody to CMV before conception provides substantial protection against damaging congenital CMV infection in the newborn. Primary maternal infection during pregnancy is associated with more severe sequelae of congenital CMV infection.
-
Randomized Controlled Trial Multicenter Study Clinical Trial
A controlled trial in intensive care units of selective decontamination of the digestive tract with nonabsorbable antibiotics. The French Study Group on Selective Decontamination of the Digestive Tract.
Selective decontamination of the digestive tract with topical nonabsorbable antibiotics has been reported to prevent nosocomial infections in patients receiving mechanical ventilation, and the procedure is used widely in Europe. However, it is unclear whether selective decontamination improves survival. ⋯ Selective decontamination of the digestive tract does not improve survival among patients receiving mechanical ventilation in the intensive care unit, although it substantially increases the cost of their care.
-
Stroke, especially cerebral infarction, is a major cause of morbidity and mortality in children with sickle cell disease. Primary prevention of stroke by transfusion therapy may be feasible if there is a way to identify the patients at greatest risk. Transcranial Doppler ultrasonography can measure flow velocity in the large intracranial arteries. The narrowing of these arteries, which leads to cerebral infarction, is characterized by an increased velocity of flow. ⋯ Transcranial ultrasonography can identify the children with sickle cell disease who are at highest risk for cerebral infarction. Periodic ultrasound examinations and the selective use of transfusion therapy could make the primary prevention of stroke an achievable goal.
-
Randomized Controlled Trial Meta Analysis Clinical Trial
A randomized trial of prednisolone in patients with severe alcoholic hepatitis.
Controlled trials have yielded inconsistent results with regard to the efficacy of corticosteroids in the treatment of alcoholic hepatitis. Three meta-analyses suggest that they may be effective in patients with encephalopathy who have severe liver disease. ⋯ Treatment with prednisolone improves the short-term survival of patients with severe biopsy-proved alcoholic hepatitis.