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Background The risk of thromboembolic (TE) complications in atrial fibrillation (AF) patients is not homogeneous. Risk schemes can help target anticoagulant therapy for patients at highest risk of TE complications. Objectives To test the predictive ability of 4 risk schemes: The Framingham, the 8th ACCP, the ACC/AHA/ESC 2006, and the CHA 2 DS 2 -VASc. Methods 186 patients with non-valvular AF and off anticoagulant therapy were included. All subjects who experienced a stroke, transient ischemic attack, or peripheral embolism were identified. Each schema was divided into low, intermediate, and high-risk categories. Discrimination was assessed via the c-statistic. Results We identified 10 TE events that occurred during 668 person-years off anticoagulation therapy. All risk schemes had fair discriminating ability (c-statistic ranged from 0.59 [for CHA 2 DS 2 -VASc] to 0.73 [for Framingham]). The proportion of patients assigned to individual risk categories varied widely across schemes. CHA 2 DS 2 -VASc categorized the fewest patients into low and intermediate-risk categories, whereas the Framingham schema assigned the highest patients into low-risk strata. There were no TE events in the low and intermediate-risk categories using CHA 2 DS 2 -VASc, whereas the most schemes assigned patients into intermediate-risk category had a event rate ranging from 2.5 (ACC/AHA/ESC and 8th ACCP schemes) to 6% (Framingham). The negative predictive value of TE events was of 100% for the no high-risk patients using CHA 2 DS 2 -VASc. Conclusions Compared to ACC/AHA/ESC, 8th ACCP, and Framingham, CHA 2 DS 2 -VASc risk stratification schema may be better in discriminating between patients at a low and intermediate risk of TE complications.

Spain is the world leader in organ transplant rates, and the national average is maintained in the northwestern Spanish region of Galicia. However, there is no official registry recording transplantation results in this region. In this paper we report a study of patient and graft survival and risk factors among kidney transplant patients in Galicia between January 1996 and December 2000.Patients receiving kidney transplants in Galicia in the above period were monitored up to the end of 2001, deaths and graft losses were recorded and analysed by actuarial and Kaplan-Meier methods, and possible risk factors for death and graft loss were evaluated using Cox's proportional hazards model.In the study period, 672 kidneys were transplanted, all from deceased donors. Graft and patient survival rates were respectively 80% and 94% after 1 year, and 67% and 83%, after 5 years. Two-thirds of graft losses occurred within the first year and the most common cause was vascular thrombosis (44%). Independent risk factors for graft loss were donor asystole (relative risk [RR] = 3.41, 95% confidence interval [CI]: 1.73-6.73), donor age (RR = 1.54, CI: 1.05-2.27 for 40-60-year-olds, RR = 2.59, CI: 1.66-4.07 for over-60s, relative to under-40s), donation from outside the institution in which implant was performed (RR = 1.43, CI: 1.02-2.02), acute rejection (RR = 2.32, CI: 1.63-3.22), and retransplantation (RR = 1.56, CI: 1.03-2.37). The main causes of death were infections (38%), followed by cardiovascular pathologies (30%) and tumours (11%).The kidney transplant rate varies excessively within Galicia; the global rate is 50 per million inhabitants per year. Patient survival is similar to those recorded in national registers, but graft survival is deficient, apparently due to a high incidence of vascular thrombosis.

Demographic changes along with an increase in the demand of organs and an increase in the expertise of transplantation teams, lead to a constant modification of donors' characteristics and, accordingly, of the supply of the organs used and refused.Analyze the use and refusal of kidneys generated in Galicia. Subjects and method. A follow-up of kidney donors was carried out between 1996 and 2000, studying the reasons for non extraction and refusal of kidneys and analyzing the influence that donors' characteristics have on them. In order to evaluate the risk factors of not using grafts, multiple logistic regression patterns were made, assessing odds ratios with confidence intervals at 95%.836 kidneys were recovered from 433 donors, and 697 were implanted out of them. 17% of the organs extracted, a percentage approaching 25% in the two latest years, were discarded, due to the biopsy findings (27%), donor's previous conditions (22%), anatomical disorders (16%), prolonged cold ischemia (12%) or recipient not located or unsuitable (14%). The average age of refused grafts was significantly higher than that of implanted ones, in such a way that having more than 45 years old was an independent risk for refusing kidneys (OR = 1.76 and p = 0.05, for 45-59 years old; OR = 6.1 and p = 0.000, for older than 60 years old). The same happened with history of hypertension (OR = 1.59 and p = 0.044), high serum creatinine level (OR = 1.83 and p = 0.005) and positive serology for HCV (OR = 5.65 and p = 0.001) and anti-HBc (OR = 2.91 and p = 0.017).Elderly donors and donors with concomitant diseases enable us to increase the number of grafts, although they also lead to an increase in refusals, which nearly amounts to 20% of the ones generated. However, more than the half were refused due to pontentially avoidable reasons and therefore these could have been valued for transplantation to limit recipients.

A comparative study of the total cholesterol (TC) and its fractions was carried out in 3 groups of males. The first group consisted of (C) 53 healthy males (18 between 30-39 years old, 17 between 40-49 and 18 between 50-65); the second group (M) was of 57 male doctors (19 between 30-39 years old, 21 between 40-49, and 17 between 50-65); third group (E) was of 94 males with myocardial infarction (22 between 30-39 years old, 32 between 40-49, and 40 between 50-65). TC was significantly lower (p less than 0.02 and p less than 0.001) in both the lower ages ranges in Group E compared to Groups C and M in all age ranges. Group M showed significantly lower (p less than 0.001) in Group E compared to Groups C and M in all age ranges. Group M showed significantly lower HDL-C (p less than 0.01) and to group M in the lowest age range (p less than 0.005). LDL-C was significantly higher (p less than 0.001) in Group M compared to C in the higher age range. VLDL-C was higher (p less than 0.05) in Group E compared to C in both the higher age ranges (p less than 0.05) as well as to the middle age range of Group M (p less than 0.05). The indexes TC/HDL-C and LDL-C/HDL-C were significantly higher in Group E compared to Groups C and M in all age ranges. These indexes were significantly higher (p less than 0.01 and p less than 0.05) in Group M compared to group C in all age ranges.(ABSTRACT TRUNCATED AT 250 WORDS)