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Articles by S Gonzalez
Total Records ( 3 ) for S Gonzalez
  G Pellacani , M Vinceti , S Bassoli , R Braun , S Gonzalez , P Guitera , C Longo , A. A Marghoob , S. W Menzies , S Puig , A Scope , S Seidenari and J. Malvehy
 

Objective  To test the interobserver and intraobserver reproducibility of the standard terminology for description and diagnosis of melanocytic lesions in in vivo confocal microscopy.

Design  A dedicated Web platform was developed to train the participants and to allow independent distant evaluations of confocal images via the Internet.

Setting  Department of Dermatology, University of Modena and Reggio Emilia, Modena, Italy.

Participants  The study population was composed of 15 melanomas, 30 nevi, and 5 Spitz/Reed nevi. Six expert centers were invited to participate at the study.

Intervention  Evaluation of 36 features in 345 confocal microscopic images from melanocytic lesions.

Main Outcome Measure  Interobserved and intraobserved agreement, by calculating the Cohen statistics measure for each descriptor.

Results  High overall levels of reproducibility were shown for most of the evaluated features. In both the training and test sets there was a parallel trend of decreasing values as deeper anatomic skin levels were evaluated. All of the features, except 1, used for melanoma diagnosis, including roundish pagetoid cells, nonedged papillae, atypical cells in basal layer, cerebriform clusters, and nucleated cells infiltrating dermal papillae, showed high overall levels of reproducibility. However, less-than-ideal reproducibility was obtained for some descriptors, such as grainy appearance of the epidermis, junctional thickening, mild atypia in basal layer, plump bright cells, small bright cells, and reticulated fibers in the dermis.

Conclusion  The standard consensus confocal terminology useful for the evaluation of melanocytic lesions was reproducibly recognized by independent observers.

  F Aboukhoudir , S Rekik , S Andrieu , S Cheggour , M Pansieri , M Metge , P Barnay , J. P Faugier , S Schouvey , G Quaino , C Unal , S Gonzalez and J. L. Hirsch
  Aims

The aim of this article was to assess whether abnormal dobutamine stress echocardiography (DSE) can be due to a dobutamine-induced coronary spasm in patients with angiographically documented vasospastic coronary arteries.

Methods and results

Between January 2004 and April 2008, we prospectively evaluated all patients with known or suspected coronary artery disease (CAD) referred to the echocardiography laboratory for dobutamine stress tests (6061 examinations). Those with abnormal DSE underwent coronary angiogram with a systematic methylergometrine intracoronary injection in the case of absence of significant coronary stenosis or spontaneous occlusive coronary spasm. Patients who had spontaneous occlusive coronary spasm or positive methylergometrine test, but no significant stenoses, were ultimately included in this study. About 581 patients had abnormal DSE, among them only 20 (3.4%) fulfilled the inclusion criteria. There were 15 males and 5 females, and mean age was 64.35 years (range 52–85); 8 patients had a known history of CAD and all of them had at least two established cardiovascular risk factors. The culprit vessel was the left anterior descending artery in 10 cases (50%), right coronary artery in 8 cases (40%), and left circumflex in 2 cases (10%). There was a systematic correspondence between the culprit arteries and dobutamine-induced wall motion abnormality territories. No complications occurred during examination or during the provocation test. All the patients were discharged with a calcium channel blocker and were doing well after 13 months of mean follow-up.

Conclusion

Coronary artery spasm can be induced at DSE, but is a rare finding; it could, though, be clinically relevant as it may partly explain some erroneously labelled ‘false-positive’ examinations. Methylergometrine provocation test is a safe and advisable approach in such situations.

  M Pollan , R Pastor Barriuso , E Ardanaz , M Arguelles , C Martos , J Galceran , M. J Sanchez Perez , M. D Chirlaque , N Larranaga , R Martinez Cobo , M. C Tobalina , E Vidal , R Marcos Gragera , A Mateos , I Garau , M. D Rojas Martin , R Jimenez , A Torrella Ramos , J Perucha , M. E Perez de Rada , S Gonzalez , M. J Rabanaque , J Borras , C Navarro , E Hernandez , A Izquierdo , G Lopez Abente and C. Martinez
  Background

Since the 1980s, Spain experienced two decades of sharply increasing breast cancer incidence. Declines in breast cancer incidence have recently been reported in many developed countries. We examined whether a similar downturn might have taken place in Spain in recent years.

Methods

Cases of invasive female breast cancer were drawn from all population-based Spanish cancer registries that had at least 10 years of uninterrupted registration over the period 1980–2004. Overall and age-specific changes in incidence rates were evaluated using change-point Poisson models, which allow for accurate detection and estimation of trend changes. All statistical tests were two-sided.

Results

A total of 80 453 incident cases of invasive breast cancer were identified. Overall age- and registry-adjusted incidence rates rose by 2.9% (95% confidence interval [CI] = 2.7% to 3.1%) annually during the 1980s and 1990s; there was a statistically significant change in this trend in 2001 (95% CI = 1998 to 2004; P value for the existence of a change point <.001), after which incidence declined annually by 3.0% (95% CI = 1.8% to 4.1%). This trend differed by age group: There was a steady increase in incidence for women younger than 45 years, an abrupt downturn in 2001 for women aged 45–64 years, and a gradual leveling off in 1995 for women aged 65 years or older. Separate analyses for registries that had at least 15 years of uninterrupted registration detected a statistically significant interruption of the previous upward trend in breast cancer incidence in provinces that had aggressive breast cancer screening programs and high screening participation rates, including Navarra (change point = 1991, P < .001), Granada (change point = 2002, P = .003), Bizkaia (change point = 1998, P < .001), Gipuzkoa (change point = 1998, P = .001), and Araba (change point = 1997, P = .002).

Conclusions

The recent downturn in breast cancer incidence among Spanish women older than 45 years is best explained by a period effect linked to screening saturation.

 
 
 
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