Francisco Valga

Dr. Francisco Valga

orcid

Research Focus & Metrics

Academic Career Length

15Years (2012-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 May 2019 in Nefrología
Verified
Journal Article
Open access
FVFrancisco Valga
Francisco Valga
TMTania Monzón
Tania Monzón
FHFernando Henriquez
Fernando Henriquez
GAGloria Antón-Pérez
Gloria Antón-Pérez

6 July 2023 in Biomedicines
Verified
Journal Article
Open access
PDF file
JFJosé Carlos De La Flor
José Carlos De La Flor
DHDaniel Eduardo Villa Hurtado
Daniel Eduardo Villa Hurtado
LCLEONIDAS CRUZADO
LEONIDAS CRUZADO
JAJacqueline Apaza
Jacqueline Apaza
FVFrancisco Valga
Francisco Valga
MRMiguel Rodeles
Miguel Rodeles
SGLT-2i are the new standard of care for diabetic kidney disease (DKD), but previous studies have not included patients on kidney replacement therapy (KRT). Due to their high risk of cardiovascular, renal complications, and mortality, these patients would benefit the most from this therapy. Residual kidney function (RKF) conveys a survival benefit and cardiovascular health among hemodialysis (HD) patients, especially those on incremental hemodialysis (iHD). We retrospectively describe the safety and efficacy of SGLT2i regarding RKF preservation in seven diabetic patients with different clinical backgrounds who underwent iHD (one or two sessions per week) during a 12-month follow-up. All patients preserved RKF, measured as residual kidney urea clearance (KrU) in 24 h after the introduction of SGLT2i. KrU levels improved significantly from 4.91 ± 1.14 mL/min to 7.28 ± 1.68 mL/min at 12 months (p = 0.028). Pre-hemodialysis blood pressure improved 9.95% in mean systolic blood pressure (SBP) (p = 0.015) and 10.95% in mean diastolic blood pressure (DBP) (p = 0.041); as a result, antihypertensive medication was modified. Improvements in blood uric acid, hemoglobin A1c, urine albumin/creatinine ratio (UACR), and 24 h proteinuria were also significant. Regarding side effects, two patients developed uncomplicated urinary tract infections that were resolved. No other complications were reported. The use of SGLT2i in our sample of DKD patients starting iHD on a 1–2 weekly regimen appears to be safe and effective in preserving RKF.

1 June 2020 in Clinical Kidney Journal
Verified
Journal Article
Open access
FVFrancisco Valga
Francisco Valga
NDNicanor Vega- Díaz
Nicanor Vega- Díaz
MMManuel Macia
Manuel Macia
TMTania Monzón
Tania Monzón
JRJosé Carlos Rodríguez-Pérez
José Carlos Rodríguez-Pérez

1 March 2022 in Nefrología
Verified
Journal Article
Open access
FVFrancisco Valga
Francisco Valga
TMTania Monzón
Tania Monzón
NVNicanor Vega-Diaz
Nicanor Vega-Diaz
JRJosé Carlos Rodriguez-Perez
José Carlos Rodriguez-Perez
SRSergio Ruiz-Santana
Sergio Ruiz-Santana
Chronic inflammation and the underlying cardiovascular comorbidity are still current problems in chronic hemodialysis patients. There are few studies comparing the "dialysis dose" (Kt/V) with the degree of inflammation in the patient. Our main objective was to determine whether there is a relationship between serum C-reactive protein (CRP) levels and the Kt/V using ionic dialysance. Multicenter cross-sectional study. A total of 536 prevalent chronic hemodialysis patients were included. CRP levels, neutrophil-lymphocyte ratio and platelet-lymphocyte ratio were collected. Kt was obtained by ionic dialysance and urea distribution volume was calculated from the Watson's formula. The sample was divided into 2 groups, taking the median CRP as the cut-off point. Dialysis adequacy obtained in each group was compared. Finally, a logistic regression model was carried out to determine the variables with the greatest influence. Median CRP was 4.10mg/L (q25-q75: 1.67-10) and mean Kt/V was 1.48±0.308. Kt/V was lower in the patients included in the high inflammation group (P=.01). In the multivariate logistic regression, the "high" levels of CRP were directly correlated with the Log neutrophil-lymphocyte ratio (P<.001) and inversely proportional with serum albumin values (P=.014), Kt/V (P=.037) and serum iron (P<.001). The poorer adequacy in terms of dialysis doses (lower Kt/V values) may contribute to a higher degree of inflammation in chronic hemodialysis patients.

1 May 2020 in Nefrología
Verified
Journal Article
Open access
FVFrancisco Valga
Francisco Valga
TMTania Monzón
Tania Monzón
FHFernando Henriquez
Fernando Henriquez
ASAngelo Santana-Del-Pino
Angelo Santana-Del-Pino
GAGloria Antón-Pérez
Gloria Antón-Pérez
The platelet-to-lymphocyte (PLR) and neutrophil-to-lymphocyte (NLR) ratios are emerging markers of inflammation. Erythropoietin resistance is associated with increased morbidity and mortality in patients with chronic kidney disease and is influenced by inflammation, among other factors. Therefore, it would be reasonable to expect a relationship between these markers and erythropoietin resistance. Multicentre cross-sectional study. The records of the haemodialysis sessions of 534 patients belonging to four of our dialysis centres were studied. 137 patients were excluded, so the final number of patients studied was 397. NLR, PLR and the erythropoietin resistance index (ERI) were calculated. The ERI was divided into quartiles and compared with the mean NLR and PLR of the four groups, with these differences being statistically significant (p=0.00058). In the regression analysis, the NLR value was able to predict ERI significantly (p<0.0001) (R2=0.029). The PLR value also predicted ERI significantly (p<0.0001) (R2=0.103). The ability of PLR to predict erythropoietin resistance was measured with the area under the ROC curve (AUC=0.681) (95% CI, 0.541-0.821). A PLR cut-off point of 125.5 would result in a sensitivity of 80.95% and 42.82% specificity. Both PLR and NLR could be considered acceptable markers of erythropoietin resistance. The PLR was a better predictor for the ERI than the NLR.

30 April 2022 in Nefrología (English Edition)
Verified
Journal Article
Open access
FVFrancisco Valga
Francisco Valga
TMTania Monzón
Tania Monzón
NVNicanor Vega-Diaz
Nicanor Vega-Diaz
JRJose C. Rodriguez-Perez
Jose C. Rodriguez-Perez
SRSergio Ruiz-Santana
Sergio Ruiz-Santana
Chronic inflammation and the underlying cardiovascular comorbidity are still current problems in chronic hemodialysis patients. There are few studies comparing the "dialysis dose" with the degree of inflammation in the patient. Our main objective was to determine whether there is a relationship between serum C-reactive protein (CRP) levels and the "dialysis dose" (Kt / V) using ionic dialysance. Multicenter cross-sectional study. 536 prevalent chronic hemodialysis patients were included. CRP levels, neutrophil-lymphocyte ratio (NLR) and platelet-lymphocyte ratio (PLR) were collected. Kt was obtained by ionic dialysance and urea distribution volume was calculated from the Watson's formula. The sample was divided into two groups, taking the median CRP as the cut-off point. Dialysis adequacy obtained in each group was compared. Finally, a logistic regression model was carried out to determine the variables with the greatest influence. Median CRP was 4.10 mg/L (q25-q75: 1.67-10) and mean Kt/V was 1.48 ± 0.308. Kt/V was lower in the patients included in the high inflammation group (p = 0.01). In the multivariate logistic regression, the "high" levels of CRP were directly correlated with the Log INL (p < 0.001) and inversely proportional with serum albumin values (p = 0.014), Kt/V (p = 0.037) and serum iron (p < 0.001). The poorer adequacy in terms of dialysis doses, lower Kt / V values, may contribute to a higher degree of inflammation in chronic hemodialysis patients.