Effect of intravenous ondansetron on QT interval prolongation in patients with cardiovascular disease and additional risk factors for torsades: a prospective, observational study

Abstract Background: This study aimed to analyze the characteristics, outcomes and prognosis factors of survival in elderly peritoneal dialysis patients, so as to better understand the status of elderly peritoneal dialysis patients and improve their quality of life.Methods: This study was a prospective, observational study that included peritoneal dialysis (PD)patients.Categorizing by age, elderly group aged ≥ 65, younger group aged < 65. Clinical characteristics, survival and transferring to hemodialysis were compared between two groups.Meanwhile, risk factors for death in elderly PD patients were explored.Results: A total of 202 PD patients were enrolled, including 61 in elderly group and 141 in younger group. Among elderly individuals,serum albumin and normalized protein catabolic rate(nPCR) decreased, the incidence of previous cardiovascular, cerebrovascular diseases and Charlson Comorbidity Index(CCI) were higher.The major primary disease in elderly patients was diabetic nephropathy, significant differences were found between elderly and younger group(P < 0.01). The mortality in elderly group was substantially higher, 27 patients (44.3%) died in elderly group and 21 patients(14.3%) died in younger group .The 1-year,2-year,3-year,4-year survival rate were 81.97%, 70.49%, 60.66%, 55.74% respectively. Cardiovascular disease was the main cause of death in elderly PD patients. Higher BMI, CCI, and previous ischemic heart disease were risk factors for long-term survival of elderly PD patients. Compared with the younger group, elderly patients were less likely to transfer to hemodialysis: 2 cases (3.3%) in elderly group and 23 cases (16.3%) in younger group. Peritonitis was the primary reason for converting to hemodialysis(HD) in both two groups.Conclusions: Poor nutrition, more complications and diabetic nephropathy were characteristics of elderly PD patients. High BMI, CCI and previous ischemic heart disease were independent predictors of death in elderly PD patients. Cardiovascular disease was the main cause of death in elderly PD patients，while the chief reason of transferring to hemodialysis was peritonitis.

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Characteristics and prognostic outcome factors in elderly peritoneal dialysis patients:a prospective observational study

10.21203/rs.3.rs-41395/v1 ◽

2020 ◽

Author(s):

Xiaoying Ma ◽

HaiPing Xu ◽

FuYun Sun

Keyword(s):

Risk Factors ◽

Cardiovascular Disease ◽

Diabetic Nephropathy ◽

Peritoneal Dialysis ◽

Observational Study ◽

Elderly Patients ◽

Cause Of Death ◽

Prospective Observational Study ◽

Elderly Group ◽

Dialysis Patients

Abstract Background This study aimed to analyze the characteristics, outcomes and prognosis factors of survival in elderly peritoneal dialysis patients, so as to better understand the status of elderly peritoneal dialysis patients and improve their quality of life.Methods This study was a prospective, observational study that included peritoneal dialysis (PD)patients.Categorizing by age, elderly group is aged ≥ 65, younger group is aged < 65. Clinical characteristics, survival and transferring to hemodialysis were compared between two groups.Meanwhile, risk factors of death in elderly PD patients were explored.Results A total of 202 PD patients were enrolled, including 61 in elderly group and 141 in younger group. The comparison of baseline data between two groups: in elderly group serum albumin and normalized protein catabolic rate(nPCR) decreased, the incidence of previous cardiovascular and cerebrovascular diseases and Charlson Comorbidity Index(CCI) were higher, the major primary disease in elderly patients was diabetic nephropathy, significant differences were found between elderly and younger group(P < 0.01). The mortality in elderly group was substantially higher, 27 patients (44.3%) died in elderly group and 21 patients(14.3%) died in younger group .The 1-year,2-year,3-year,4-year survival rate were 81.97%, 70.49%, 60.66%, 55.74%,respectively. Cardiovascular disease was the main cause of death in elderly PD patients. Higher BMI 、CCI, and previous ischemic heart disease(IHD)were risk factors for long-term survival of elderly PD patients. Compared with the younger group, elderly patients were less likely to transfer to hemodialysis: 2 cases (3.3%) in elderly group and 23 cases (16.3%) in younger group. Peritonitis was primary reason for converting to hemodialysis(HD) in both two group.Conclusions Poor nutrition, more complications and diabetic nephropathy were characteristics of elderly PD patients. High BMI, CCI and previous IHD were independent predictors of death in elderly PD patients. Cardiovascular disease was the main cause of death in elderly PD patients,while the chief reason of transferring to hemodialysis was peritonitis.

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QT interval prolongation and Torsades de Pointes with donepezil, rivastigmine and galantamine

Therapeutic Advances in Drug Safety ◽

10.1177/2042098620942416 ◽

2020 ◽

Vol 11 ◽

pp. 204209862094241 ◽

Cited By ~ 1

Author(s):

Katie Malone ◽

Jules C. Hancox

Keyword(s):

Risk Factors ◽

Case Report ◽

Qt Interval ◽

Case Reports ◽

Acetylcholinesterase Inhibitors ◽

Torsades De Pointes ◽

Modifiable Risk Factors ◽

Interval Prolongation ◽

Qt Interval Prolongation ◽

Mesh Terms

Background: Acetylcholinesterase inhibitors (AChEis) including donepezil, galantamine and rivastigmine are used to treat Alzheimer’s disease (AD). This study aimed to evaluate evidence from the case report literature for an association between these agents and risk of QT interval prolongation and Torsades de Pointes (TdP) arrhythmia. Methods: Published literature was mined with predetermined MeSH terms for each of donepezil, galantamine and rivastigmine, to identify cases of QT interval prolongation and TdP. Case reports were analysed using causality scales and a QT interval nomogram. Results: A total of 13 case reports were found (10 for donepezil, 2 for galantamine and 1 for rivastigmine) with rate corrected QT interval (QTc) prolongation. Five cases with donepezil exhibited TdP. TdP was not reported in the cases with galantamine and rivastigmine. The use of a QT heart rate nomogram highlighted risk with donepezil compared with the other two drugs and the application of the Naranjo causality scale suggested probable or possible causation for all donepezil cases. All patients had at least two other risk factors for TdP, including modifiable risk factors such as electrolyte disturbances, bradycardia, co-administration of QT prolonging drugs. A number of recent cases involved recent changes in medication. Conclusion: Our evaluation of the case report literature suggests that there is evidence for a causal association between donepezil and QTc/TdP risk. Attention to risk factors for QTc prolongation/TdP should be exercised when prescribing donepezil and modifiable risk factors corrected. Owing to the low number of cases with galantamine and rivastigmine, further work is needed to establish whether these drugs may be more suitable than donepezil for patients with other risk factors for TdP.

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