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A Double-Blind, Active-Controlled Clinical Trial of Sodium Bicarbonate and Calcium Gluconate in the Treatment of Bilateral Osteoarthritis of the Knee.

ABSTRACT: OBJECTIVE:To evaluate the effect of intra-articular injections of sodium bicarbonate with a single (SBCG1) or double dose (SBCG2) of calcium gluconate administered monthly compared with methylprednisolone (MP) for treatment of knee osteoarthritis. METHODS:A 3-month, randomized, double-blind clinical trial with patients diagnosed with knee osteoarthritis (OA). The outcome variables were the Western Ontario-McMaster University Osteoarthritis Index (WOMAC) and the Lequesne functional index. RESULTS:After 3 months, all treatments significantly improved in overall WOMAC and Lequesne scores. Mean changes (95% confidence interval) in WOMAC total score and the Lequesne index, respectively, for SBCG1 (-12.5 [-14.3, -10.7]; -9.0 [-11.4, -6.7]) and SBCG2 (-12.3 [-14.3, -10.4]; -8.9 [-10.4, -7.4]) were significantly greater than for MP (-5.0 [-7.2, -2.8]; -3.2 [-4.9, -1.5]) (P < .001). CONCLUSIONS:Intra-articular injections of sodium bicarbonate and calcium gluconate are useful for short-term relief of OA symptoms in patients with bilateral knee osteoarthritis. Both treatments are more effective than MP injections in the reduction of knee OA symptoms. TRIAL REGISTRATION:Clinicaltrials.gov NCT00977444.

SUBMITTER: Caamano MDC

PROVIDER: S-EPMC5385469 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature

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A Double-Blind, Active-Controlled Clinical Trial of Sodium Bicarbonate and Calcium Gluconate in the Treatment of Bilateral Osteoarthritis of the Knee.

Caamaño María Del Carmen MDC García-Padilla Sandra S Duarte-Vázquez Miguel Ángel MÁ González-Romero Karla Elena KE Rosado Jorge L JL

Clinical medicine insights. Arthritis and musculoskeletal disorders 20170216

<h4>Objective</h4>To evaluate the effect of intra-articular injections of sodium bicarbonate with a single (SBCG1) or double dose (SBCG2) of calcium gluconate administered monthly compared with methylprednisolone (MP) for treatment of knee osteoarthritis.<h4>Methods</h4>A 3-month, randomized, double-blind clinical trial with patients diagnosed with knee osteoarthritis (OA). The outcome variables were the Western Ontario-McMaster University Osteoarthritis Index (WOMAC) and the Lequesne functional ...[more]

PMID: 28469486

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Project description:ObjectiveInsomnia is prevalent among patients with knee osteoarthritis (OA). Research indicates that sleep disruption may amplify clinical pain by altering central pain modulation, suggesting that treatment of insomnia may improve pain. The aims of this study were to evaluate the efficacy of cognitive-behavioral therapy for insomnia (CBT-I) in patients with knee OA, to determine whether improvements in sleep predict reduced pain, and to determine whether alterations in pain modulation mediate improvements in clinical pain.MethodsWe conducted a randomized, double-blind, active placebo-controlled clinical trial of CBT-I in 100 patients with knee OA and insomnia (mean ± SD age 59.4 ± 9.5 years). Patients were randomized (1:1) to receive either 8 sessions of CBT-I or behavioral desensitization (placebo). We conducted in-home polysomnography (PSG), diary assessment, and sensory tests of pain modulation at baseline, posttreatment, 3 months, and 6 months.ResultsIntent-to-treat analyses demonstrated substantial improvement in sleep in both groups of patients. Patients in the CBT-I group had significantly greater reductions in wake after sleep onset (WASO), as measured by patient diary and PSG. Patients in both groups reported significant and comparable reductions in pain over 6 months, with one-third reporting a 30% reduction in pain severity. Baseline-to-posttreatment reductions in WASO as measured by diary and PSG predicted subsequent decreases in clinical pain. This effect was significantly greater for CBT-I compared with behavioral desensitization. No significant changes in laboratory measures of pain modulation were observed.ConclusionCompared with active placebo, CBT-I was efficacious in reducing sleep maintenance insomnia. CBT-I decreased clinical pain, but not pain modulation, suggesting that it has the potential to augment pain management in knee OA. Future work is needed to identify the mechanisms by which improved sleep reduces clinical pain.

Project description:BackgroundThe ability to sustain intense exercise seems to be partially limited by the body's capability to counteract decreases in both intra- and extracellular pH. While the influence of an enhanced buffering capacity via sodium bicarbonate (BICA) on short-term, high-intensity exercise performance has been repeatedly investigated, studies on prolonged endurance performances are comparatively rare, especially for running. The aim of the following study was to assess the ergogenic effects of an oral BICA substitution upon exhaustive intensive endurance running performance.MethodIn a double-blind randomized cross-over study, 18 trained runners (VO2peak: 61.2 ± 6.4 ml•min-1•kg-1) performed two exhaustive graded exercise tests and two constant load tests (30 main at 95% individual anaerobic threshold (IAT) followed by 110% IAT until exhaustion) after ingestion of either sodium bicarbonate (BICA) (0.3 g/kg) or placebo (4 g NaCl) diluted in 700 ml of water. Time to exhaustion (TTE) in the constant load test was defined as the main outcome measure. Throughout each test respiratory gas exchange measurements were conducted as well as determinations of heart rate, blood gases and blood lactate concentration.ResultsTTE in the constant load test did not differ significantly between BICA and placebo conditions (BICA: 39.6 ± 5.6 min, placebo: 39.3 ± 5.6 min; p = 0.78). While pH in the placebo test dropped to a slightly acidotic value two minutes after cessation of exercise (7.34 ± 0.05) the value in the BICA trial remained within the normal range (7.41 ± 0.06) (p < 0.001). In contrast, maximum running speed (Vmax) in the exhaustive graded exercise test was significantly higher with BICA (17.4 ± 1.0 km/h) compared to placebo (17.1 ± 1.0 km/h) (p = 0.009). The numerical difference in maximum oxygen consumption (VO2peak) failed to reach statistical significance (BICA: 61.2 ± 6.4 ml•min-1•kg-1, placebo: 59.8 ± 6.4 ml•min-1•kg-1; p = 0.31). Maximum blood lactate was significantly higher with BICA compared to the corresponding placebo test (BICA: 11.1 ± 2.3 mmol/l, placebo: 8.9 ± 3.0 mmol/l; p < 0.001). At the end of exercise, an acidotic pH value was found in both exhaustive graded exercise tests (p = 0.002). BICA caused gastrointestinal side effects in 15 patients.ConclusionMaximal performance was enhanced significantly after BICA administration. The ergogenic effect of BICA in the exhaustive graded exercise test can most likely be attributed to an increased anaerobic glycolysis that is reflected by an accumulation of lactate. However, TTE in prolonged high-intensity running was not improved. Even at the end of exercise no severe metabolic acidosis was found. Metabolic acidification as one of the dominant factors causing muscular fatigue should therefore be reconsidered.Trial registrationGerman Clinical Trials Register (DRKS) DRKS00011284.

Dataset Information

A Double-Blind, Active-Controlled Clinical Trial of Sodium Bicarbonate and Calcium Gluconate in the Treatment of Bilateral Osteoarthritis of the Knee.

Publications

A Double-Blind, Active-Controlled Clinical Trial of Sodium Bicarbonate and Calcium Gluconate in the Treatment of Bilateral Osteoarthritis of the Knee.

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