pregabalin and Renal-Insufficiency--Chronic

The objective of this review is to provide updated information on the epidemiology, correlating factors and treatment of chronic kidney disease associated restless legs syndrome (CKD-A-RLS) in both adult and pediatric population.. We have reviewed the Medline search and Google Scholar search up to May 2022, using key words restless legs syndrome, chronic kidney disease and hemodialysis and kidney transplant. The reviewed articles were studied for epidemiology, correlating factors, as well as pharmacologic and non-pharmacologic treatment options.. Our search revealed 175 articles, 111 were clinical trials or cross- sectional studies and 64 were review articles. All 111 articles were retrieved and studied in detail. Of these, 105 focused on adults and 6 on children. A majority of studies on dialysis patients reported a prevalence between 15-30%, which is notably higher than prevalence of RLS in general population (5-10%). The correlation between presence of CKD-A-RLS with age, gender, abnormalities of hemogram, iron, ferritin, serum lipids, electrolytes and parathyroid hormones were also reviewed. The results were inconsistent and controversial. Limited studies have reported on the treatment of CKD-A-RLS. Non-pharmacological treatment focused on the effect(s) of exercise, acupuncture, massage with different oils and infra-red light whereas, pharmacologic treatment options include the effects of dopaminergic drugs, Alpha2-Delta ligands (gabapentin and pregabalin), vitamins E and C, and intravenous iron infusion.. This updated review showed that RLS is two to three times more common in patients with CKD compared to the general population. More patients with CKD-A-RLS demonstrated increased mortality, increased incidence of cardiovascular accident, depression, insomnia and impaired quality of life than those with CKD without RLS. Dopaminergic drugs such as levodopa, ropinirole, pramipexole and rotigotine as well as calcium channel blockers (gabapentin and pregabalin) are helpful for treatment of RLS. High quality studies with these agents are currently underway and hopefully confirm the efficacy and practicality of using these drugs in CKD-A-RLS. Some studies have shown that aerobic exercise and massage with lavender oil can improve symptoms of CKD-A- RLS suggesting that these measures can be useful as adjunct therapy.

Topics: Child; Dopamine Agents; Gabapentin; Humans; Iron; Pregabalin; Quality of Life; Renal Insufficiency, Chronic; Restless Legs Syndrome

Patients with POAG have lower corneal endothelial cell density than healthy controls of the same age. This may be attributed to mechanical damage from elevated IOP and toxicity of glaucoma medications.. Mycophenolic acid was detected in all cats. The dose 10 mg/kg given q12h for 1 week was tolerated (n = 3). The efficacy of MMF as an immunosuppressant and long-term safety in cats of this dosage regimen is unknown.. T

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Strong epidemiological and pathologic evidence associates NSAIDs with kidney disease, both acute and chronic. Hence, the usage of NSAIDs has decreased in patients with, or at risk for, chronic kidney disease (CKD). Coupled with this has been a rise in use of opioids and other non-NSAID alternatives, which do come with significant, and underrecognized, risk of nonrenal adverse events. We review the literature to understand if this shift is appropriate or deleterious.. NSAIDs do have a low but tangible risk in causing acute kidney injury, electrolyte imbalances, and increasing blood pressure. However, their role in causing progressive kidney disease is due to long-term usage in high cumulative dosages, and the use of NSAIDs in combination with other agents. Alternatives such as opioids, tramadol, gabapentin and baclofen have weak evidence to support their use and strong evidence to show their harm in patients with CKD.. Tradeoffs are inherent in using active pharmaceuticals, and NSAIDs are no exception. Balancing potential benefits with possible adverse effects around pain management should be a part of every conversation for patients with kidney disease.

Topics: Acute Kidney Injury; Analgesics, Opioid; Anti-Inflammatory Agents, Non-Steroidal; Baclofen; Cost-Benefit Analysis; Gabapentin; Humans; Pain; Pregabalin; Renal Insufficiency, Chronic; Tramadol

Uremic pruritus is a common and burdensome symptom afflicting patients with advanced chronic kidney disease (CKD) and has been declared a priority for CKD research by patients. The optimal treatments for uremic pruritus are not well defined.. Systematic review.. Adult patients with advanced CKD (stage ≥ 3) or receiving any form of dialysis.. PubMed, CINAHL, Embase, International Pharmaceutical Abstracts, Scopus, Cochrane Library, and ClinicalTrials.gov from their inception to March 6, 2017, were systematically searched for randomized controlled trials (RCTs) of uremic pruritus treatments in patients with advanced CKD (stage ≥ 3) or receiving any form of dialysis. 2 reviewers extracted data independently. Risk of bias was assessed using the Cochrane Collaboration risk-of-bias tool.. Any intervention for the treatment of uremic pruritus was included.. A quantitative change in pruritus intensity on a visual analogue, verbal rating, or numerical rating scale.. 44 RCTs examining 39 different treatments were included in the review. These treatments included gabapentin, pregabalin, mast cell stabilizers, phototherapy, hemodialysis modifications, and multiple other systemic and topical treatments. The largest body of evidence was found for the effectiveness of gabapentin. Due to the limited number of trials for the other treatments included, we are unable to comment on their efficacy. Risk of bias in most studies was high.. Heterogeneity in design, treatments, and outcome measures rendered comparisons difficult and precluded meta-analysis.. Despite the acknowledged importance of uremic pruritus to patients, with the exception of gabapentin, the current evidence for treatments is weak. Large, simple, rigorous, multiarm RCTs of promising therapies are urgently needed.

Topics: Administration, Cutaneous; Amines; Analgesics; Anti-Asthmatic Agents; Antipruritics; Capsaicin; Cromolyn Sodium; Cyclohexanecarboxylic Acids; Gabapentin; gamma-Aminobutyric Acid; Humans; Kidney Failure, Chronic; Phototherapy; Pregabalin; Pruritus; Renal Dialysis; Renal Insufficiency, Chronic; Uremia

Uremic pruritus or chronic kidney disease-associated pruritus (CKD-aP) remains a frequent and compromising symptom in patients with advanced or end-stage renal disease, strongly reducing the patient's quality of life. More than 40% of patients undergoing hemodialysis suffer from chronic pruritus; half of them complain about generalized pruritus. The pathogenesis of CKD-aP remains obscure. Parathormone and histamine as well as calcium and magnesium salts have been suspected as pathogenetic factors. Newer hypotheses are focusing on opioid-receptor derangements and microinflammation as possible causes of CKD-aP, although until now this could not be proven. Pruritus may be extremely difficult to control, as therapeutic options are limited. The most consequential approaches to treatment are: topical treatment with or without anti-inflammatory compounds or systemic treatment with (a) gabapentin, (b) μ-opioid receptor antagonists and κ-agonists, (c) drugs with an anti-inflammatory action, (d) phototherapy, or (e) acupuncture. A stepwise approach is suggested starting with emollients and gabapentin or phototherapy as first-line treatments. In refractory cases, more experimental options as μ-opioid-receptor-antagonists (i.e., naltrexone) or κ-opioid-receptor agonist (nalfurafine) may be chosen. In desperate cases, patients suitable for transplantation might be set on 'high urgency'-status, as successful kidney transplantation will relieve patients from CKD-aP.

Topics: Acupuncture Therapy; Amines; Anti-Inflammatory Agents; Calcium Channel Blockers; Cyclohexanecarboxylic Acids; Gabapentin; gamma-Aminobutyric Acid; gamma-Linolenic Acid; Humans; Morphinans; Naltrexone; Narcotic Antagonists; Pentoxifylline; Phototherapy; Pregabalin; Pruritus; Receptors, Opioid, kappa; Renal Insufficiency, Chronic; Spiro Compounds; Tacrolimus; Thalidomide; Uremia

Uremic pruritus (UP) affects many patients suffering from chronic kidney disease (CKD) and has a negative impact on quality of life and survival. It has become increasingly evident that central transmission and sensitization processes similar to those observed in chronic pain are important mechanisms of pruritus.. To test the potential role of pregabalin in reducing the intensity of UP in CKD patients.. We prospectively collected data on CKD patients who suffered from severe intractable pruritus. Patients were asked to record the intensity of pruritus on a visual analogue scale.. Twelve patients were studied. The average pretreatment pruritus score was 9.7 ± 0.9 and decreased to 3.7 ± 2.35, 3.2 ± 1.75, and 3 ± 1.5 after one, four, and 24 weeks of treatment, respectively (P < 0.05). The positive effect of pregabalin was demonstrated during the first week of therapy in six patients. Most patients required 25mg a day. Pregabalin was well tolerated, with somnolence and dizziness developing in two patients.. We demonstrated dramatic improvement of long-standing UP after the initiation of pregabalin. We suggest that pregabalin can be used safely in CKD but careful titration of the dose is required to obtain an optimal response and minimize the possible adverse effects.

Topics: Aged; Analgesics; Anticonvulsants; Chronic Disease; Female; gamma-Aminobutyric Acid; Humans; Male; Pregabalin; Pruritus; Renal Insufficiency, Chronic; Treatment Outcome; Uremia

Pruritus (skin irritation or itching) is common in patients with chronic kidney disease (CKD) stages 4 and 5. It is associated with disrupted sleep, reduced quality of life, depression and increased mortality. A video of a patient describing the symptoms is at vimeo.com/49458473.. We used gabapentin or pregabalin in 71 consecutive patients, 82% male. 25 had CKD stage 4 or 5, median eGFR = 17, range 9-30; 40 were on haemodialysis; 6 on peritoneal dialysis. Median itch severity score out of 10 = 8, range 6-10; median duration of itching = 6 months, range 0.5-240. Serum calcium ≤2.60 mmol/l (≤10.4 mg/dl) in 87% patients, phosphate ≤1.8 mmol/l (≤5.6 mg/dl) in 75%. 63% had used antihistamines and not gained relief. Starting dose of gabapentin 100 mg after dialysis or daily. Patients intolerant of gabapentin were offered pregabalin, starting dose 25 mg after dialysis or daily.. Gabapentin relieved itching in 47 patients (66%). A video of a patient describing the effect is at vimeo.com/49455976. 26 patients (37%) suffered side effects from gabapentin. Of 21 patients who stopped gabapentin due to side effects, 16 started pregabalin. Pregabalin relieved itching in 13 patients (81%). In total, gabapentin or pregabalin relieved itching in 60 patients (85%), median follow-up 2 months (range 1-8 months). Median itch severity out of 10 reduced from 8 to 1.. Gabapentin or pregabalin relieved itching in 85% of 71 consecutively treated CKD patients. Patients should be advised about side effects and the drug initiated at a low dose. Patients intolerant of gabapentin may tolerate pregabalin.

Topics: Adult; Aged; Aged, 80 and over; Amines; Analgesics; Comorbidity; Cyclohexanecarboxylic Acids; Dose-Response Relationship, Drug; Female; Gabapentin; gamma-Aminobutyric Acid; Humans; Male; Middle Aged; Pregabalin; Prevalence; Pruritus; Renal Insufficiency, Chronic; Risk Factors; Treatment Outcome; United Kingdom; Uremia

Gabapentinoids are opioid substitutes whose elimination by the kidneys is reduced as kidney function declines. To inform their safe prescribing in older adults with chronic kidney disease (CKD), we examined the 30-day risk of serious adverse events according to the prescribed starting dose.. Population-based cohort study.. 74,084 older adults (64% women; median age, 79 [interquartile range, 73-85] years) with CKD (defined for this study as an estimated glomerular filtration rate <60 mL/min/1.73 m. Higher-dose gabapentinoids (gabapentin >300 mg/d or pregabalin >75 mg/d) versus lower-dose gabapentinoids (gabapentin ≤300 mg/d or pregabalin ≤75 mg/d).. The primary composite outcome was the 30-day risk of a hospital visit with encephalopathy, a fall, or a fracture or a hospitalization with respiratory depression.. Comparison groups were balanced on indicators of baseline health using inverse probability of treatment weighting using propensity score analysis that generated a pseudosample for the reference group with a distribution of measured covariates similar to the exposed group. Weighted risk ratios were estimated using modified Poisson regression, and weighted risk differences were estimated using binomial regression. Prespecified subgroup analyses were conducted by estimated glomerular filtration rate category and type of gabapentinoid.. Among 74,084 patients identified with CKD and a new prescription for gabapentin or pregabalin, 41% started at >300 or >75 mg/d, respectively. From this set of patients, a weighted study population with a size of 61,367 was generated. Patients who started at a higher dose had a higher 30-day risk of the primary outcome than patients who started at lower dose. Within the weighted population, the numbers of events for higher versus lower dose were 585 of 30,660 (1.9%) versus 462 of 30,707 (1.5%), respectively. The weighted risk ratio was 1.27 (95% CI, 1.13-1.42), and the weighted risk difference was 0.40% (95% CI, 0.21%-0.60%). In subgroup analyses, neither multiplicative nor additive interactions were statistically significant.. Residual confounding.. In this population-based study, starting a gabapentinoid at a higher versus a lower dose was associated with a slightly higher risk of a hospital visit with encephalopathy, a fall, or a fracture or hospitalization with respiratory depression. If verified, these risks should be balanced against the benefits of using a higher-dose gabapentinoid.

Topics: Aged; Aged, 80 and over; Brain Diseases; Cohort Studies; Female; Gabapentin; Humans; Male; Ontario; Pregabalin; Renal Insufficiency, Chronic; Respiratory Insufficiency

Topics: Accidental Falls; Aged; Analgesics; Emergency Service, Hospital; Female; Fractures, Bone; Gabapentin; Hospitalization; Humans; Male; Medicare; Mental Disorders; Middle Aged; Pregabalin; Proportional Hazards Models; Renal Dialysis; Renal Insufficiency, Chronic; Risk Factors; United States

A middle-aged woman with diabetic nephropathy on pregabalin for neuropathic pain presented with a diarrhoeal illness. She was found to have acute on chronic renal impairment with an estimated glomerular filtration rate (eGFR) of 10 mL/min, and her usual 150 mg/day of pregabalin was abruptly ceased. Although renal recovery to her baseline of eGFR 15 mL/min was achieved within 3 days, her pregabalin was not restarted. She suffered a tonic-clonic seizure 4 days later, thought to be due to pregabalin withdrawal as there were no other likely causes identified. She suffered no further seizures on recommencement of pregabalin at a renally adjusted dose of 75 mg/day.

Topics: Analgesics; Diabetic Nephropathies; Diagnosis, Differential; Drug Administration Schedule; Female; Humans; Middle Aged; Neuralgia; Pregabalin; Renal Insufficiency, Chronic; Seizures; Substance Withdrawal Syndrome