Medicine and Health Sciences Commons^™

Shifting From Hypofractionated To "Conventionally" Fractionated Thoracic Radiotherapy: A Single Institution's 10-Year Experience In The Management Of Limited-Stage Small-Cell Lung Cancer Using Concurrent Chemoradiation, Gregory Videtic, Pauline Truong, A. Dar, Edward Yu, Larry Stitt

Edward Yu

PURPOSE: To perform a retrospective review of a single institution's 10-year experience in treating limited-stage small-cell lung cancer (LS-SCLC) with a concurrent chemoradiation regimen modeled after the experimental arm of a randomized National Cancer Institute of Canada trial in which hypofractionated radiotherapy started with cycle 2 of chemotherapy. We then looked at the impact on patient outcomes of changing the RT during the course of the decade to a "conventionally" (2 Gy) fractionated regimen, with a focus on toxicity and survival rates. METHODS AND MATERIALS: Between 1989 and 1999, 215 LS-SCLC patients received six cycles of chemotherapy consisting of cyclophosphamide, …

Geographical And Temporal Distribution Of Human Giardiasis In Ontario, Canada., Agricola Odoi, S W. Martin, P Michel, J Holt, D Middleton, J Wilson

Agricola Odoi

BACKGROUND: Giardia is the most frequently identified intestinal parasite in North America. Although information on geographical distribution of giardiasis is critical in identifying communities at high risk, little has been done in this area. Therefore, the objective of this study was to investigate the geographical and temporal distribution of human giardiasis in Ontario in order to identify possible high risk areas and seasons. Two spatial scales of analyses and two disease measures were used with a view to identifying the best of each in assessing geographical patterns of giardiasis in Ontario. Global Moran's I and Moran Local Indicators of Spatial …

Obstructive And Restrictive Lung Disease And Markers Of Inflammation: Data From The Third National Health And Nutrition Examination, David M. Mannino, Earl S. Ford, Stephen C. Redd

David M. Mannino

Although chronic obstructive pulmonary disease (COPD) and restrictive lung diseases are important causes of morbidity and mortality in the United States 1, 2 and 3, a large proportion of the morbidity and mortality is not pulmonary (4). This raises the possibility that lung disease may be an indicator of susceptibility to the development of other diseases or may be associated with systemic inflammation that leads to other diseases 5 and 6. Previous analyses of the relation between lung function and markers of inflammation 7 and 8 have not looked at restrictive lung disease separately.

We applied spirometric criteria to define …

Tobacco Smoke Exposure And Decreased Serum And Red Blood Cell Folate Levels: Data From The Third National Health And Nutrition Examination Survey, David M. Mannino, Joseph Mulinare, Earl S. Ford, Joel Schwartz

David M. Mannino

The aim of this cross-sectional study was to determine the effects of smoke exposure on serum and red blood cell folate levels. Data collected as part of the Third National Health and Nutrition Examination Survey were analyzed. Serum and red blood cell folate levels were measured in active smokers and nonsmokers with high, moderate, and low exposure to environmental tobacco smoke. After adjusting for dietary intake of folate and other covariates, we found that both smokers and nonsmokers with high smoke exposure had lower red blood cell folate levels than did nonsmokers with low smoke exposure (−86 nmol/l [95% confidence …

The Epidemiology Of Sepsis In The United States From 1979 Through 2000, Greg S. Martin, David M. Mannino, Stephanie Eaton, Marc Moss

David M. Mannino

BACKGROUND

Sepsis represents a substantial health care burden, and there is limited epidemiologic information about the demography of sepsis or about the temporal changes in its incidence and outcome. We investigated the epidemiology of sepsis in the United States, with specific examination of race and sex, causative organisms, the disposition of patients, and the incidence and outcome.

METHODS

We analyzed the occurrence of sepsis from 1979 through 2000 using a nationally representative sample of all nonfederal acute care hospitals in the United States. Data on new cases were obtained from hospital discharge records coded according to the International Classification of …

Continued Cigarette Smoking By Patients Receiving Concurrent Chemoradiotherapy For Limited-Stage Small-Cell Lung Cancer Is Associated With Decreased Survival, Gregory Videtic, Larry Stitt, A. Dar, Walter Kocha, Anna Tomiak, Pauline Truong, Mark Vincent, Edward Yu

Edward Yu

PURPOSE: To determine the impact of continued smoking by patients receiving chemotherapy (CHT) and radiotherapy (RT) for limited-stage small-cell lung cancer (LSCLC) on toxicity and survival. PATIENTS AND METHODS: A retrospective review was carried out on 215 patients with LSCLC treated between 1989 and 1999. Treatment consisted of six cycles of alternating cyclophosphamide, doxorubicin, vincristine and etoposide, cisplatin (EP). Thoracic RT was concurrent with EP (cycle 2 or 3) only. Patients were known smokers, with their smoking status recorded at the start of chemoradiotherapy (CHT/RT). RT interruption during concurrent CHT/RT was used as the marker for treatment toxicity. RESULTS: Of …

Impact Of Clinical Experience On Quantification Of Clinical Signs At Physical Examination, Luciano F. Drager, Paulo A. Lotufo, Isabela M. Bensenor

Paulo A Lotufo

Purpose. Although physical examination is a fundamental component of medical decision making, relatively few studies have evaluated how physicians quantify clinical signs and whether different methods of assessment have different effects on clinical practice. Objectives. To evaluate a possible impact of clinical experience when attending physicians, medical residents and medical students quantify qualitative signs of physical examination in a teaching hospital. Setting. Hospital das Clı´nicas, University of Sa˜o Paulo, Brazil. Subjects. A total of 244 randomly selected physicians and medical students completed a reliable and consistent eight-item questionnaire. Main outcome measures. To compare how they quantified clinical signs of cyanosis, …