77 research outputs found
Ifosfamide in advanced adenocarcinoma of the oesophagus or oesophageal-gastric junction area
Abstract
25 previously untreated patients with inoperable or metastatic adenocarcinoma of the oesophagus or oesophageal-gastric junction area were treated with ifosfamide 6 g/m2 over 48 hours, combined with mesna 6 g/m2. 1 complete response and 1 partial response were seen among 23 patients evaluable, with a response duration of 29+ months and 7 months, respectively. Toxicity was not severe: grade 3 infection in 2 patients, grade 3 leucopenia in 3 patients and grade 3 nausea in 4 patients. No life-threatening episodes or central nervous system toxicity were encountered. Ifosfamide has limited activity in adenocarcinoma of the oesophageal-gastric junction area
Academic dismissal policy for medical students:effect on study progress and help-seeking behaviour
CONTEXT Medical students often fail to finish medical school within the designated time. An academic dismissal (AD) policy aims to enforce satisfactory progress and to enable early identification and timely support or referral of struggling students. In this study, we assessed whether the implementation of an AD policy improved study progress in the first 2 years of medical school. Additionally, we analysed its effect on the help-seeking behaviour of struggling students. METHODS We compared two AD cohorts (entering in 2005 and 2006, respectively) and two non-AD cohorts (entering in 2003 and 2004, respectively) on dropout rates, Year 1 curriculum completion rates and the percentage of students with an optimal study rate (i.e. all modules completed) at 1 and 2 years after enrolment. We also measured the effect on study progress of attending the support meetings offered. RESULTS The AD (n = 809) and non-AD cohorts (n = 809) did not differ significantly in dropout rate at 5 months, in Year 1 completion rate at 2 years and in the percentage of optimally performing students at 1 year after enrolment. At 2 years after enrolment, more students from the AD cohorts had left and more non-AD students demonstrated optimal performance, but effect sizes (ESs) for these differences were small. Voluntary support at 4 months was attended by AD students more often than by non-AD students (68.9% versus 39.8%; chi(2)((1)) = 43.95, p <0.001, ES = 0.29). The AD students who attended the support meetings completed the Year 1 curriculum more often than those who did not (73.4% versus 52.5%; chi(2)((1)) = 10.92, p <0.001, ES = 0.20). Attending the obligatory support meeting at 7 months had a similar effect (70.5% versus 33.3%; chi(2)((1)) = 13.60, p <0.001, ES = 0.23). CONCLUSIONS The presence of an AD policy did not lead to earlier dropout, higher completion rates or an improved study rate during the first 2 years at medical school. However, uptake of the support offered increased to almost 70%. Although support participants finished the Year 1 curriculum more often than non-participants, the current support system was not sufficient to improve overall study progress
Disease monitoring by the tumour maskers Cyfra 21.1 and TPA in patients with non-small cell lung cancer
We evaluated the use of two tumour markers Cyfra 21.1 and tissue polypeptide antigen (TPA) for disease monitoring. Assessment of response to WHO criteria was compared to response assessment according to changes in the tumour marker levels. The criteria defined for marker response were a 65% decrease for a partial response and a 40% increase for progressive disease. When response evaluations with a positive lead time were included, 72% of 115 evaluations for Cyfra 21.1 and 59% of 107 evaluations for TPA yielded the same result. Most discordant evaluations were caused by those evaluations whereby the patient achieved a partial response according to the WHO criteria and had normalisation of the marker. Less cases with a positive lead time, more negative lead times, and more patients with progressive disease without an increase of the marker were seen with TPA compared to Cyfra 21.1. In conclusion, Cyfra 21.1 follows the changes in the tumour load better than TPA. Rising levels of both markers nearly always indicate disease progression, and such knowledge easily obtained may prevent the continuation of ineffective treatment
Le Ministère de la culture en France : création et organisation
Digitised version produced by the EUI Library and made available online in 2020
Prognostic significance of tissue polypeptidespecific antigen (TPS) in patients with advanced non-small cell lung cancer
In this study, we evaluated the prognostic value of the tumour marker, tissue polypeptide-specific antigen (TPS), in 203 patients with non-small cell lung cancer (NSCLC), and related this to several other known prognostic factors. TPS was significantly correlated with lactate dehydrogenase (LDH), γ-glutamyltranspeptidase and alkaline phosphatase, and the median level of TPS in patients with stage 4 disease was significantly higher as compared to stage 3A and 3B disease. In the univariate analysis, performance status, stage of disease, LDH, alkaline phosphatase, a histology of undifferentiated large cell carcinoma and TPS all had a statistically significant association with survival. Multivariate analysis showed that stage of disease, performance status, histology and TPS were the most important prognostic factors. TPS has prognostic significance for survival in patients with advanced NSCLC, independent from performance status and stage of disease
Phase II study of ACNU in non-small-cell lung cancer: EORTC study 08872
A total of 62 patients with metastatic or locally advanced non-small-cell lung cancer were entered in a phase II study of ACNU. Initially, the drug was given i. v. at a dose of 100 mg/m2 every 6 weeks, but due to observed haematological side effects in chemotherapy-pretreated patients, the dose was lowered in this group to 75 mg/m2. We observed one complete response in a subject exhibiting multiple lung metastases and a partial response in two patients, one showing brain metastases and one who experienced local disease recurrence. The toxicity of ACNU mainly consisted of bone marrow suppression especially thrombocytopenia, with one toxic death occurring due to intracerebral haemorrhage. We concluded that at this dose and on this schedule, ACNU has limited activity in non-small-cell lung cancer
The WiggleZ Dark Energy Survey: Direct constraints on blue galaxy intrinsic alignments at intermediate redshifts
Correlations between the intrinsic shapes of galaxy pairs, and between the
intrinsic shapes of galaxies and the large-scale density field, may be induced
by tidal fields. These correlations, which have been detected at low redshifts
(z<0.35) for bright red galaxies in the Sloan Digital Sky Survey (SDSS), and
for which upper limits exist for blue galaxies at z~0.1, provide a window into
galaxy formation and evolution, and are also an important contaminant for
current and future weak lensing surveys. Measurements of these alignments at
intermediate redshifts (z~0.6) that are more relevant for cosmic shear
observations are very important for understanding the origin and redshift
evolution of these alignments, and for minimising their impact on weak lensing
measurements. We present the first such intermediate-redshift measurement for
blue galaxies, using galaxy shape measurements from SDSS and spectroscopic
redshifts from the WiggleZ Dark Energy Survey. Our null detection allows us to
place upper limits on the contamination of weak lensing measurements by blue
galaxy intrinsic alignments that, for the first time, do not require
significant model-dependent extrapolation from the z~0.1 SDSS observations.
Also, combining the SDSS and WiggleZ constraints gives us a long redshift
baseline with which to constrain intrinsic alignment models and contamination
of the cosmic shear power spectrum. Assuming that the alignments can be
explained by linear alignment with the smoothed local density field, we find
that a measurement of \sigma_8 in a blue-galaxy dominated, CFHTLS-like survey
would be contaminated by at most +/-0.02 (95% confidence level, SDSS and
WiggleZ) or +/-0.03 (WiggleZ alone) due to intrinsic alignments. [Abridged]Comment: 18 pages, 12 figures, accepted to MNRAS; v2 has correction to one
author's name, NO other changes; v3 has minor changes in explanation and
calculations, no significant difference in results or conclusions; v4 has an
additional footnote about model interpretation, no changes to
data/calculations/result
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