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A Tranaeus

Publications and source records attributed to A Tranaeus.

24 records · Page 2Linked to original sources

A long-term study of a bicarbonate/lactate-based peritoneal dialysis solution--clinical benefits. The Bicarbonate/Lactate Study Group.

OBJECTIVE: A bicarbonate/lactate peritoneal dialysis solution (Bic/Lac) has been developed based on in vitro and ex vivo data showing better preservation of cell function and correction of pain on infusion. DESIGN: This was a randomized, prospective, controlled, open-label study comparing a new 25 mmol/L bicarbonate/15 mmol/L lactate with a standard 40 mmol/L lactate-buffered peritoneal dialysis solution (Lac) over a 12-month treatment period. SETTING: 17 European nephrology centers. PATIENTS: 106 (70 Bic/Lac and 36 Lac) well-dialyzed continuous ambulatory peritoneal dialysis (CAPD) patients. INTERVENTIONS: Dialysis adequacy and peritoneal equilibration test (PET, week -4, months 3, 6, and 12); 24-hour ultrafiltration (week -4, months 1, 3, and 6); blood biochemistry (week -2, day 0, months 1, 2, 3,6, 9, and 12); and a product acceptability questionnaire (months 1 and 6). RESULTS: 88 patients completed the first 6 months, and 44 the full year. The solutions were shown to be therapeutically equivalent with respect to plasma bicarbonate and peritoneal urea and creatinine clearances. Ultrafiltration in the Bic/Lac group increased significantly from baseline by about 150 mL/day for the whole of the 6-month treatment period (p < 0.05). The biochemistry profile, adverse events, and physical examination (except body weight where there was a statistically significant increase in the Bic/Lac group) results did not differ significantly between the two groups. Reduced pain/discomfort on infusion or an increased sense of well-being was reported by 41% of patients on the Bic/Lac fluid. CONCLUSIONS: The Bic/Lac solution is safe and effective in correcting uremic acidosis, provides relief of inflow pain/discomfort, and improves ultrafiltration and body weight.

Adult↗

Acidosis correction with a new 25 mmol/l bicarbonate/15 mmol/l lactate peritoneal dialysis solution.

OBJECTIVE: The aim of this study was to evaluate the effects of a combined 25 mmol/L bicarbonate/15 mmol/L lactate-based solution (Bic/Lac), compared to a 35 mmol/L lactate solution (Lac)--the most commonly used solution for patients in southern Europe--on the venous plasma bicarbonate level in patients treated with continuous ambulatory peritoneal dialysis (CAPD). DESIGN: This was a randomized, parallel, controlled, open-label study, with patients studied for a period of 3 months preceded by a 1-month baseline and followed by a 1-month follow-up. Patients used the 35 mmol/L lactate solution during baseline and follow-up periods. SETTING: Four Spanish nephrology centers. PATIENTS: Thirty-one (20 Bic/Lac, 11 Lac) well-dialyzed (creatinine clearance > 55 L/week/1.73 m2 body surface area) CAPD patients. INTERVENTIONS: Blood samples were taken for biochemistry tests at all visits. A physical examination was completed at baseline and month 3, and a medical update was completed after 1, 2, and 3 months, and at the follow-up visit. Adverse-event monitoring and notation of prescription changes were carried out continuously. MAIN OUTCOME MEASURE: Effect on venous plasma bicarbonate level. RESULTS: Venous plasma bicarbonate rose by 3.1 mmol/L (confidence intervals 1.6-4.8),from a baseline level of 23.0 mmol/L during the treatment period in those patients treated with Bic/Lac (p < 0.05 vs Lac). The number of acidotic patients (venous plasma bicarbonate < 24 mmol/L) was statistically significantly reduced at every treatment period visit in the Bic/Lac group (p < 0.05). There were no adverse findings with respect to vital signs, physical examination, or clinical symptoms, apart from one death in the control group. CONCLUSIONS: The new Bic/Lac solution allowed better correction of acid-base status than the lactate solution.

Acidosis↗

A randomized controlled trial of a bicarbonate- and a bicarbonate/lactate-containing dialysis solution in CAPD.

OBJECTIVE: To evaluate the safety and efficacy of bicarbonate- and bicarbonate/lactate-based PD fluids. DESIGN: A randomly allocated prospective controlled trial lasting eight weeks. SETTING: Five renal units in Europe. PATIENTS: Individuals who have been treated by CAPD for at least three months and who have had at least one month's therapy with 40 mmol/L lactate PD fluid. Those with recent infection, diabetes or other serious illness are excluded. Forty-seven individuals have entered the study so far. INTERVENTIONS: Patients are randomly allocated to three groups. Group 1 receive 40 mmol/L lactate dialysate, Group 2 are given 38 mmol/L bicarbonate fluid and Group 3 are tested with a 25 mmol/L bicarbonate and 15 mmol/L lactate dialysate. OUTCOME MEASURES: The primary outcome measure is the plasma bicarbonate level. Adverse events and ease of use of the two-chambered bags used by Groups 2 and 3 are also being assessed. RESULTS: To date, plasma bicarbonate levels have been the same in all treatment groups up to the end of the trial period. There are no differences in serum lactate levels. No side effects are attributable to the test fluids. The patients have managed the two-chambered bags successfully. CONCLUSION: This trial is still ongoing, but to date, neutral bicarbonate based fluids have been as effective as lactate dialysate in treating uremic acidosis.

Adult↗

Vancomycin revisited.

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Anti-Bacterial Agents↗

Clinical evaluation of a peritoneal dialysis solution with 33 mmol/L bicarbonate.

OBJECTIVE: To evaluate the efficacy and safety of a new peritoneal dialysis solution with 33 mmol/L bicarbonate. DESIGN: In an acute, prospective, randomized cross-over study, 8 patients were randomized in two groups of 4. On the first study day, the first group performed two consecutive 4-hour exchanges with a dialysis solution containing 35 mmol/L lactate: the first exchange with 13.6 g/L and the second with 38.6 g/L dextrose. On the second study day, the same type of exchanges were performed with bicarbonate. The second group underwent the same treatment, but used bicarbonate solutions on the first day and control solutions on the second study day. Thirty-three patients participated in a 2-month prospective and randomized study. After a 4-week baseline period using solutions containing 40 mmol/L lactate, the patients were dialyzed with either 33 mmol/L bicarbonate solutions or 40 mmol/L lactate solutions. SETTING: Peritoneal dialysis units at the University Hospital of Brescia and the Niguarda Hospital of Milan, Italy. RESULTS: Acute study: Control and bicarbonate solutions had similar effects on blood chemistries and peritoneal transport. Chronic study: Mean venous bicarbonate concentrations remained unchanged in the control group (26.6-27.2 mmol/L), but decreased significantly in the bicarbonate group from 28.8 mmol/L at the start of the study to 23.0 mmol/L after 2 months of bicarbonate administration. Other biochemical parameters remained unchanged. CONCLUSION: A peritoneal dialysis solution with a bicarbonate level of 33 mmol/L does not adequately correct uremic acidosis.

Adult↗