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    "textoCompleto" => "<p class="elsevierStylePara">Dear Editor&#44;</p><p class="elsevierStylePara">Vascular access is very important in the management of patients beginning Long Term Haemodialysis &#40;LTH&#41; nonetheless&#44; in spite of the advances achieved in many fields&#44; there is a very large number of patients that reach dialysis without proper vascular access&#46;</p><p class="elsevierStylePara">Recent data demonstrates that&#44; irrespective of the recommendations of guidelines&#44; the use of Arteriovenous Fistulae &#40;AVF&#41; is even decreasing&#46;<span class="elsevierStyleSup">1&#44;2</span> Therefore&#44; this is a field where much work needs to be done&#46;</p><p class="elsevierStylePara">In our hospital&#44; we have carried out a retrospective study of all patients that began their LTH program between 1 January 2002&#44; and 31 December 2003&#46; Among other data we recorded the type of vascular access used at the beginning of their dialysis and at the end of the study&#44; the dose of erythropoietin given during the entire period of the study to each patient &#40;the annual dose was calculated for each one&#41;&#44; the number of hospital admissions&#44; in absolute numbers and calculated by total days&#44; and the comorbidity score using the Charlson Co-Morbidity Index&#44;<span class="elsevierStyleSup">3</span> calculated for the beginning and the end of the study&#46;</p><p class="elsevierStylePara">63 patients began LTH during the period of the study&#46; 41 of them &#40;65&#37;&#41; were men&#46; The average age was 60 &#177; 16 years for men and women&#46; Fifty one percent of the patients were 65 years old or older&#46; The average amount of time in the study was 9&#46;3 &#177; 6&#46;3 months&#46; Of the 63 patients&#44; 40 completed the study&#44; The reasons for early termination of the study were <span class="elsevierStyleItalic">exitus</span> &#40;four patients&#41;&#44; transfer to another centre &#40;four patients&#41; and transplant &#40;15 patients&#41;&#46; The diabetic patients &#40;19&#37;&#41; were older &#40;66 &#177; 10 vs&#46; 59 &#177; 17 years old&#41;&#44; more obese &#40;BMI 28 &#177; 7 vs&#46; 25 &#177; 3&#41; and they had a higher co-morbidity index than the rest of the patients&#46;</p><p class="elsevierStylePara">39 patients began dialysis with AVF &#40;62&#37;&#41; and 24 patients with catheters &#40;38&#37;&#41;&#46; At the end of the study&#44; 6 patients were using catheters for dialysis&#46; There were no differences in type of vascular access according to age&#44; in diabetics or non-diabetics or to co-morbidity index&#46; Statistically significant differences were found in the level of albumin&#44; dose of erythropoietin received and in the number of hospital admissions &#40;table 1&#41;&#46; The average annual dose of erythropoietin was practically double in those patients that started dialysis with a catheter compared to those that began with an AVF&#46;</p><p class="elsevierStylePara">There were no differences if the vascular access in the results at the end of the study was considered&#46; Kt&#47;V at the end of the study was similar in the group of patients using catheters or an AVF for dialysis&#46; Seventeen patients &#40;27&#37;&#41; were never hospitalized&#44; 22 &#40;35&#37;&#41; were hospitalized once&#44; and the rest&#44; 24 patients &#40;38&#37;&#41;&#44; more than once&#46; Only 8&#37; of those that began with a catheter were never hospitalized&#46;</p><p class="elsevierStylePara">Having an AVF prior to the commencement of HD is not only associated with better patient-reported quality of life&#44;<span class="elsevierStyleSup">4</span> but is also linked to lower morbidity and mortality and healthcare expenditure&#46;<span class="elsevierStyleSup">5-7</span> Our study confirms the fact that those patients that began LTH with a catheter have a greater number of hospital admissions&#44; longer hospital stay and need higher doses of erythropoietin for similar levels of haemoglobin&#46; Therefore&#44; although the situation in Spain is fortunately better<span class="elsevierStyleSup">5&#44;6&#44;8</span> than in other countries&#44;<span class="elsevierStyleSup">4</span> more work must be done to ensure the timely formation of an AVF as recommended in in the clinical practice guidelines&#46;<span class="elsevierStyleSup">9&#44;10 </span></p><p class="elsevierStylePara"><a href="grande&#47;21418078&#95;t1&#95;p177&#46;jpg" class="elsevierStyleCrossRefs"><img src="21418078_t1_p177.jpg" alt="Patient characteristics according to their first vascular access at the start of haemodialysis"></img></a></p><p class="elsevierStylePara">Table 1&#46; Patient characteristics according to their first vascular access at the start of haemodialysis</p>"
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The importance of starting regular haemodialysis through a native arterio-venous fistula
Importancia de iniciar hemodiálisis periódica a través de una fístula arterio-venosa interna.
Carmen Díaz Cortea, Emilio Gago Gonzáleza, María José Ourensa, Teresa Ortegaa
a Servicio de Nefrología, Hospital Universitario Central de Asturias Asturias Asturias España,
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    "textoCompleto" => "<p class="elsevierStylePara">Dear Editor&#44;</p><p class="elsevierStylePara">Vascular access is very important in the management of patients beginning Long Term Haemodialysis &#40;LTH&#41; nonetheless&#44; in spite of the advances achieved in many fields&#44; there is a very large number of patients that reach dialysis without proper vascular access&#46;</p><p class="elsevierStylePara">Recent data demonstrates that&#44; irrespective of the recommendations of guidelines&#44; the use of Arteriovenous Fistulae &#40;AVF&#41; is even decreasing&#46;<span class="elsevierStyleSup">1&#44;2</span> Therefore&#44; this is a field where much work needs to be done&#46;</p><p class="elsevierStylePara">In our hospital&#44; we have carried out a retrospective study of all patients that began their LTH program between 1 January 2002&#44; and 31 December 2003&#46; Among other data we recorded the type of vascular access used at the beginning of their dialysis and at the end of the study&#44; the dose of erythropoietin given during the entire period of the study to each patient &#40;the annual dose was calculated for each one&#41;&#44; the number of hospital admissions&#44; in absolute numbers and calculated by total days&#44; and the comorbidity score using the Charlson Co-Morbidity Index&#44;<span class="elsevierStyleSup">3</span> calculated for the beginning and the end of the study&#46;</p><p class="elsevierStylePara">63 patients began LTH during the period of the study&#46; 41 of them &#40;65&#37;&#41; were men&#46; The average age was 60 &#177; 16 years for men and women&#46; Fifty one percent of the patients were 65 years old or older&#46; The average amount of time in the study was 9&#46;3 &#177; 6&#46;3 months&#46; Of the 63 patients&#44; 40 completed the study&#44; The reasons for early termination of the study were <span class="elsevierStyleItalic">exitus</span> &#40;four patients&#41;&#44; transfer to another centre &#40;four patients&#41; and transplant &#40;15 patients&#41;&#46; The diabetic patients &#40;19&#37;&#41; were older &#40;66 &#177; 10 vs&#46; 59 &#177; 17 years old&#41;&#44; more obese &#40;BMI 28 &#177; 7 vs&#46; 25 &#177; 3&#41; and they had a higher co-morbidity index than the rest of the patients&#46;</p><p class="elsevierStylePara">39 patients began dialysis with AVF &#40;62&#37;&#41; and 24 patients with catheters &#40;38&#37;&#41;&#46; At the end of the study&#44; 6 patients were using catheters for dialysis&#46; There were no differences in type of vascular access according to age&#44; in diabetics or non-diabetics or to co-morbidity index&#46; Statistically significant differences were found in the level of albumin&#44; dose of erythropoietin received and in the number of hospital admissions &#40;table 1&#41;&#46; The average annual dose of erythropoietin was practically double in those patients that started dialysis with a catheter compared to those that began with an AVF&#46;</p><p class="elsevierStylePara">There were no differences if the vascular access in the results at the end of the study was considered&#46; Kt&#47;V at the end of the study was similar in the group of patients using catheters or an AVF for dialysis&#46; Seventeen patients &#40;27&#37;&#41; were never hospitalized&#44; 22 &#40;35&#37;&#41; were hospitalized once&#44; and the rest&#44; 24 patients &#40;38&#37;&#41;&#44; more than once&#46; Only 8&#37; of those that began with a catheter were never hospitalized&#46;</p><p class="elsevierStylePara">Having an AVF prior to the commencement of HD is not only associated with better patient-reported quality of life&#44;<span class="elsevierStyleSup">4</span> but is also linked to lower morbidity and mortality and healthcare expenditure&#46;<span class="elsevierStyleSup">5-7</span> Our study confirms the fact that those patients that began LTH with a catheter have a greater number of hospital admissions&#44; longer hospital stay and need higher doses of erythropoietin for similar levels of haemoglobin&#46; Therefore&#44; although the situation in Spain is fortunately better<span class="elsevierStyleSup">5&#44;6&#44;8</span> than in other countries&#44;<span class="elsevierStyleSup">4</span> more work must be done to ensure the timely formation of an AVF as recommended in in the clinical practice guidelines&#46;<span class="elsevierStyleSup">9&#44;10 </span></p><p class="elsevierStylePara"><a href="grande&#47;21418078&#95;t1&#95;p177&#46;jpg" class="elsevierStyleCrossRefs"><img src="21418078_t1_p177.jpg" alt="Patient characteristics according to their first vascular access at the start of haemodialysis"></img></a></p><p class="elsevierStylePara">Table 1&#46; Patient characteristics according to their first vascular access at the start of haemodialysis</p>"
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                  "referenciaCompleta" => "Moist LM, Chang SH, Polkinghorne KR, McDonald SP; Australia and New Zealand Dialysis and Transplant Registry (ANZDATA). Trends in hemodialysis vascular access from the Australia and New Zealand Dialysis and Transplant Registry (ANZDATA) 2000 to 2005. Am J Kidney Dis 2007, 50(4): 612-21. <a href="http://www.ncbi.nlm.nih.gov/pubmed/17900461" target="_blank">[Pubmed]</a>"
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                  "referenciaCompleta" => "Charlson ME, Pompei P, Ales KL, MacKenzie CR. A new method of classifying prognostic comorbidity in longitudinal studies: development and validation. J Chronic Dis 1987, 40: 373-383. <a href="http://www.ncbi.nlm.nih.gov/pubmed/3558716" target="_blank">[Pubmed]</a>"
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                  "referenciaCompleta" => "López Pedret J, Rodríguez Hernández JA, Piera L. El acceso vascular en España: análisis de su distribución, morbilidad y sistemas de monitorización. Nefrología 2001, 21: 45-51. <a href="http://www.ncbi.nlm.nih.gov/pubmed/11344961" target="_blank">[Pubmed]</a>"
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                  "referenciaCompleta" => "Schon D, Blume SW, Niebauer K, Hollenbeak CS, de Lissovoy G. Increasing the use of arteriovenous fistula in hemodialysis: economic benefits and economic barriers. Clin J Am Soc Nephrol 2007, 2: 268-276. <a href="http://www.ncbi.nlm.nih.gov/pubmed/17699424" target="_blank">[Pubmed]</a>"
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                  "referenciaCompleta" => "Pisoni R, Young E, Dykstra D, Greenwood R, Hecking E, Gillespie B et al. Vascular access use in Europe and the United States: Results from the DOPPS. Kidney Int 2002, 61: 305-316. <a href="http://www.ncbi.nlm.nih.gov/pubmed/11786113" target="_blank">[Pubmed]</a>"
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