Fruit and Vegetable Treatment of Chronic Kidney Disease-Related Metabolic Acidosis Reduces Cardiovascular Risk Better than Sodium Bicarbonate

2019 ◽  
Vol 49 (6) ◽  
pp. 438-448 ◽  
Author(s):  
Nimrit Goraya ◽  
Yolanda Munoz-Maldonado ◽  
Jan Simoni ◽  
Donald E. Wesson

Background: Current guidelines recommend treatment of metabolic acidosis in chronic kidney disease (CKD) with sodium-based alkali. We tested the hypothesis that treatment with base-producing fruits and vegetables (F + V) better improves cardiovascular disease (CVD) risk indicators than oral sodium bicarbonate (NaHCO3). Methods: We randomized 108 macroalbuminuric, matched, nondiabetic CKD patients with metabolic acidosis to F + V (n = 36) in amounts to reduce dietary acid by half, oral NaHCO3 (HCO3, n = 36) 0.3 mEq/kg bw/day, or to Usual Care (UC, n = 36) to assess the 5-year effect of these interventions on estimated glomerular filtration rate (eGFR) course as the primary analysis and on indicators of CVD risk as the secondary analysis. Results: Five-year plasma total CO2 was higher in HCO3 and F + V than UC but was not different between HCO3 and F + V (difference p value < 0.01). Five-year net eGFR decrease was less in HCO3 (mean –12.3, 95% CI –12.9 to –11.7 mL/min/1.73 m2) and F + V (–10.0, 95% CI –10.6 to –9.4 mL/min/1.73 m2) than UC (–18.8, 95% CI –19.5 to –18.2 mL/min/1.73 m2; p value < 0.01) but was not different between HCO3 and F + V. Five-year systolic blood pressure was lower in F + V than UC and HCO3 (p value < 0.01). Despite similar baseline values, F + V had lower low-density lipoprotein, Lp(a), and higher serum vitamin K1 (low serum K1 is associated with coronary artery calcification) than HCO3 and UC at 5 years. Conclusion: Metabolic acidosis improvement and eGFR preservation were comparable in CKD patients treated with F + V or oral NaHCO3 but F + V better improved CVD risk indicators, making it a potentially better treatment option for reducing CVD risk.

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
María M. Adeva-Andany ◽  
Carlos Fernández-Fernández ◽  
David Mouriño-Bayolo ◽  
Elvira Castro-Quintela ◽  
Alberto Domínguez-Montero

Metabolic acidosis occurs when a relative accumulation of plasma anions in excess of cations reduces plasma pH. Replacement of sodium bicarbonate to patients with sodium bicarbonate loss due to diarrhea or renal proximal tubular acidosis is useful, but there is no definite evidence that sodium bicarbonate administration to patients with acute metabolic acidosis, including diabetic ketoacidosis, lactic acidosis, septic shock, intraoperative metabolic acidosis, or cardiac arrest, is beneficial regarding clinical outcomes or mortality rate. Patients with advanced chronic kidney disease usually show metabolic acidosis due to increased unmeasured anions and hyperchloremia. It has been suggested that metabolic acidosis might have a negative impact on progression of kidney dysfunction and that sodium bicarbonate administration might attenuate this effect, but further evaluation is required to validate such a renoprotective strategy. Sodium bicarbonate is the predominant buffer used in dialysis fluids and patients on maintenance dialysis are subjected to a load of sodium bicarbonate during the sessions, suffering a transient metabolic alkalosis of variable severity. Side effects associated with sodium bicarbonate therapy include hypercapnia, hypokalemia, ionized hypocalcemia, and QTc interval prolongation. The potential impact of regular sodium bicarbonate therapy on worsening vascular calcifications in patients with chronic kidney disease has been insufficiently investigated.


2021 ◽  
pp. 75-76
Author(s):  
Bharat Bhushan ◽  
Debarshi Jana

Background: Dyslipidemia is very much common in chronic kidney disease patients and is responsible for cardiovascular disease (CKD) which is most common cause of mortality in them. So, it is necessary to study the lipid prole in CKD patients to prevent morbidity and mortality. Methods: Subjects each of 50 in number are grouped into healthy controls (group-1), CKD patients without hemodialysis (group-2), CKD patients with hemodialysis (group-3). After fasting of 12 hours, lipid prole is assessed in all cases. Results: In this study, there is increase in Total cholesterol (TC), Low Density lipoprotein (LDL), very Low-Density lipoprotein (VLDL) and Triglycerides (TG) and decrease in High Density Lipoprotein (HDL) in all CKD patients compared to healthy controls (p-value for each parameter <0.001). There is increase in TC, TG and VLDL in diabetic CKD patients compare to non-diabetic CKD patients and p-value for each parameter is <0.05. It was found that TG and VLDL increase and HDL decrease in group-3 compare to group-2 is statistically signicant (p-value for each <0.05) and no signicant variation in TC and LDL in these groups. Conclusions: Present study demonstrated that there is dyslipidemia in CKD patients irrespective of mode of management, but the derangement is much more common and signicant in CKD with hemodialysis group and they are at risk of cardiovascular disease. It is better to start lipid lowering drugs which decreases disease progression and dyslipidemia.


2018 ◽  
Vol 44 (1) ◽  
pp. 8
Author(s):  
Diana Vergnano ◽  
Emanuela Valle ◽  
Natascia Bruni ◽  
Rita Rizzi ◽  
Mauro Bigliati ◽  
...  

Background: Chronic kidney disease (CKD) is a very common pathology in cats, especially in the geriatric age. A proper renal diet is considered the current standard of care to enhance patients’ long-term survival and quality of life. However, when diet alone is not sufficient, it is necessary to supplement it with specific substances: these are phosphate binders and alkalinizing agents. The aim of this study was to evaluate the effectiveness of a feed supplement containing calcium carbonate, calcium lactate gluconate, chitosan and sodium bicarbonate in controlling hyperphosphatemia and metabolic acidosis in cats with severe CKD (IRIS, International Renal Interest Society, stage 3 and 4).Materials, Methods & Results: 10 cats (median BW 4.00 (3.20; 5.70) Kg, BCS 3/5 (2.25; 3.75), 11 (8.25;12.00) years) fed with a balanced renal diet were included in the study. To be enrolled in the study cats had to be affected by CKD in stages 3 or 4 and show hyperphosphatemia. Treatment consisted in oral administration of the product (Renal, Candioli Pharma) at 0.2 g/kg/day mixed with the food for 60 days. The animals were evaluated at the beginning of the study and at 15, 30, 60 days (T0, T15, T30, T60) for: clinical condition, BW, BCS, blood pressure and for routinely hematochemical, biochemical and urinary parameters. Owners were asked to assess appetite of the cat, palatability of the supplement, presence of vomit and/or diarrhoea, general health and vitality. All statistical analyses were performed using SAS software. After checking normality data were analyzed using Kruskal-Wallis and Wilcoxon tests. Results are expressed as median (interquartile range). For the parameters P (P < 0.0001), iCa (P = 0.0008) and HCO3 (P = 0.0002) there were statistically significant differences among times of supplementation (T0, T15, T30, T60). Statistically significant reduction of serum phosphorus concentration was obtained through the study (reduction of 59% at T60 vs T0). Also a statistically significant increase of bicarbonate was seen (7% from T0 to T60). At T60 was also recorded an increase of ionized calcium level, which however was in normal range. For the other laboratory parameters, no statistical difference was recorded. All the owners reported a good palatability of the product. The decrease of vomit and diarrhea episodes and the increase of the appetite reported were statistically significant (P < 0.05).Discussion: The restriction of available dietary phosphorus is now recognised as one of the major contributors in slowing the disease progression and improving survival rates. Phosphate binders are able to absorb phosphate (P) in the intestine, forming insoluble products that are eliminated with the faeces, thus decreasing serum phosphate levels. The phosphate binders contained in the product tested in the present trial were chitosan, calcium lactate gluconate and calcium carbonate. During the study P decreased significantly from T0 to T60, reaching the target post-treatment plasma P concentration for IRIS stage 3 after 30 days. Another important recommendation for CKD treatment is to use alkalinisation therapy if metabolic acidosis is present. The feed supplement tested in this study also contained sodium bicarbonate. In our study, 90% of the patients at the inclusion examination had metabolic acidosis. At the end of the study, the median blood bicarbonate concentration was in the normal range, thus reaching the IRIS treatment target. The feed supplement tested was therefore effective in reducing blood phosphate levels and in increasing blood bicarbonate levels, thus improving the cats’ clinical conditions for the duration of the study without any adverse effect.


2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Hikaru Morooka ◽  
Junichiro Yamamoto ◽  
Akihito Tanaka ◽  
Daijo Inaguma ◽  
Shoichi Maruyama

Abstract Background Patients with chronic kidney disease often experience metabolic acidosis. Whether oral sodium bicarbonate can reduce mortality in patients with metabolic acidosis has been debated for years. Hence, this study was conducted to evaluate the utility of sodium bicarbonate in patients who will undergo dialysis therapy. In this study, we investigated the effect of oral sodium bicarbonate therapy on mortality in patients with end-stage kidney disease (ESKD) initiated on dialysis therapy. Methods We conducted an observational study of patients when they started dialysis therapy. There were 17 centres participating in the Aichi Cohort Study of Prognosis in Patients Newly Initiated into Dialysis. Data were available on patients’ sex, age, use of sodium bicarbonate, drug history, medical history, vital data, and laboratory data. We investigated whether patients on oral sodium bicarbonate for more than three months before dialysis initiation had a better prognosis than those without sodium bicarbonate therapy. The primary outcome was defined as all-cause mortality. Results The study included 1524 patients with chronic kidney disease who initiated dialysis between October 2011 and September 2013. Among them, 1030 were men and 492 women, with a mean age of 67.5 ± 13.1 years. Of these, 677 used sodium bicarbonate and 845 did not; 13.6% of the patients in the former group and 21.2% of those in the latter group died by March 2015 (p <  0.001). Even after adjusting for various factors, the use of sodium bicarbonate independently reduced mortality (p <  0.001). Conclusions The use of oral sodium bicarbonate at the time of dialysis initiation significantly reduced all-cause mortality in patients undergoing dialysis therapy.


2021 ◽  
Author(s):  
Hikaru Morooka ◽  
Junichiro Yamamoto ◽  
Akihito Tanaka ◽  
Daijo Inaguma ◽  
Shoichi Maruyama

Abstract Background Patients with chronic kidney disease often experience metabolic acidosis. Whether oral sodium bicarbonate can reduce mortality in patients with metabolic acidosis has been debated for years. Hence, this study was conducted to evaluate the utility of sodium bicarbonate in patients who will undergo dialysis therapy. In this study, we investigated the effect of oral sodium bicarbonate therapy on mortality in patients with end-stage kidney disease (ESKD) initiated on dialysis therapy. Methods We conducted an observational study of patients when they started dialysis therapy. There were 17 centres participating in the Aichi Cohort Study of Prognosis in Patients Newly Initiated into Dialysis. Data were available on patients’ sex, age, use of sodium bicarbonate, drug history, medical history, vital data, and laboratory data. We investigated whether patients on oral sodium bicarbonate for more than three months before dialysis initiation had a better prognosis than those without sodium bicarbonate therapy. The primary outcome was defined as all-cause mortality. Results The study included 1524 patients with chronic kidney disease who initiated dialysis between October 2011 and September 2013. Among them, 1030 were men and 492 women, with a mean age of 67.5 ± 13.1 years. Of these, 677 used sodium bicarbonate and 845 did not; 13.6% of the patients in the former group and 21.2% of those in the latter group died by March 2015 (p < 0.001). Even after adjusting for various factors, the use of sodium bicarbonate independently reduced mortality (p < 0.001). Conclusions The use of oral sodium bicarbonate at the time of dialysis initiation significantly reduced all-cause mortality in patients undergoing dialysis therapy.


2017 ◽  
Vol 7 (4) ◽  
pp. 334-341
Author(s):  
Felipe Rizzetto ◽  
Denise Mafra ◽  
Ana Beatriz Barra ◽  
Gisella Pires de Melo ◽  
Dulcinéia Saes Parra Abdalla ◽  
...  

Background: Chronic kidney disease (CKD) patients develop metabolic acidosis when approaching stages 3 and 4, a period in which accelerated atherogenesis may ensue. Studies in vitro show that low pH may increase low-density lipoprotein (LDL) oxidation, suggesting a role for chronic metabolic acidosis in atherosclerosis. The present study attempted to evaluate the effects of conservative care using oral sodium bicarbonate (NaHCO3) supplementation on the electronegative LDL [LDL(-)], a minimally oxidized LDL, plasma levels in CKD patients. Methods: Thirty-one CKD patients were followed by a multidisciplinary team during 15 months of care in which 1.0 mmol/kg/day oral NaHCO3 supplementation was first given in the third month. Blood samples were collected 3 months before the initiation of oral NaHCO3 supplementation (T1), at the time of the beginning of supplementation (T2), and thereafter, each 4 months (T3, T4 and T5) until month 15 of care. Blood parameters and LDL(-) were measured from these collections. Results: After 12 months of conservative care, creatinine clearance (MDRD) was kept stable, and serum bicarbonate (HCO3-) increased from 20.5 ± 2.9 to 22.6 ± 1.1 mM (p < 0.003). LDL(-) plasma levels declined from 4.5 ± 3.3 to 2.1 ± 0.9 U/L (p < 0.007) after reaching mean serum HCO3- levels of 22.6 ± 1.1 mM. Conclusions: Conservative care using oral NaHCO3 supplementation was able to stabilize renal function and decrease serum levels of LDL(-), a modified proatherogenic lipoprotein, only when mean serum HCO3- levels approached 22 mM. This study constitutes evidence that alkali therapy, in addition to its beneficial effect on renal disease progression, might serve as a preventive strategy to attenuate atherogenesis in CKD patients.


Hypertension ◽  
2016 ◽  
Vol 68 (suppl_1) ◽  
Author(s):  
Nimrit Goraya ◽  
Jan Simoni ◽  
Jessica Pruszynski ◽  
Pin Xiang ◽  
Donald Wesson

Background: Both sodium bicarbonate (NaHCO 3 ) and base-producing fruits and vegetables (F+V) improve metabolic acidosis in chronic kidney disease (CKD) and appear to provide similar levels of kidney protection. Because F+V themselves reduce blood pressure, we examined if treatment of metabolic acidosis in CKD with F+V was associated with improved blood pressure control, using fewer anti-hypertensive drugs, and thereby with lower cost of hypertension management. Methods: We randomized 108 subjects with CKD stage 3 eGFR (30-59 ml/min) and metabolic acidosis as follows: F+V (n=36) added to reduce dietary potential renal acid load (PRAL) 50%, oral NaHCO 3 (HCO 3 , n=36) to reduce PRAL 50%, or no alkali (Usual Care, n=36). All were treated toward systolic blood pressure (SBP) <130 mmHg with regimens including ACE inhibition and followed 5 years. Results: Entry SBP and initial doses of 5 formulary anti-hypertensive drugs most commonly used for blood pressure control in CKD were not different among the 3 groups. At 5 years, SBP was lower in F+V (125±5 mm Hg) than both HCO 3 and Usual Care (135±5 and 134±5 mm Hg, respectively, p<0.01 vs. F+V for each). Daily doses for the following drugs at year 5 were lower in F+V than HCO 3 and Usual Care: Enalapril (8.3±2.4 vs. 11.1±3.6 and 11.7±4.8, mg/day, respectively, p<0.01), Diltiazem (1.7±7.0 vs. 145.8±36.0 and 153.3±35.7, mg/day, p<0.01), Clonidine (0.14±0.20 vs. 0.65±0.15 and 0.63±0.16, mg/day, p<0.01), Atenolol (0 vs. 6.25±15.1 and 6.25±15.1 mg/day, p<0.02) but there was no difference among groups in the year 5 dose of hydrochlorthiazide (16.1±9.9 vs. 21.9±16.2 and 21.5±16.3 mg/day, p=0.27). Five-year drug cost of hypertension management was less in F+V ($79,760) than both HCO 3 ($155,372) and Usual Care ($152,305). Conclusions: Treating metabolic acidosis in CKD patients with F+V but not NaHCO 3 was associated with lower SBP, use of fewer and lower doses of anti-hypertensive drugs, and lower group cost of hypertension management. The data support that clinicians consider these adjunctive benefits of F+V on hypertension management when recommending treatment strategies for metabolic acidosis in CKD.


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