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Weight fluctuations tied to poor outcomes in patients with chronic kidney disease: Study
Korea: Higher weight fluctuations or BMI variability increases the risk of cardiovascular-related problems and early death in people with chronic kidney disease (CKD), a recent study has found. The study findings appear in the Journal of the American Society of Nephrology (JASN).
Body mass index (BMI) variability in the general population is associated with higher risk of heart disease and cardiovascular disease is the leading cause of death in patients with CKD. Considering this, a team of researchers from Korea led by Dong Ki Kim, Sehoon Park, and Kyungdo Han aimed to examine whether BMI variability affects the prognosis of patients with kidney dysfunction.
The study included 84,636 patients with CKD who were listed in a national health screening database in South Korea. During a median follow-up of 4 years, 6% of individuals died, 4% needed kidney replacement therapy such as dialysis, 2% suffered a heart attack, and 3% suffered a stroke.
Compared with individuals with the lowest body mass index variability, those with the highest body mass index variability faced a 66% higher risk of dying, a 20% higher risk of needing kidney replacement therapy, a 19% higher risk of experiencing a heart attack, and a 19% higher risk of experiencing a stroke.
"This study showed that people who had kidney function impairment with recent fluctuating body mass index had a higher risk of cardiovascular disease or death, regardless of their current body mass index," said Dr. Kim, of Seoul National University Hospital. "This result suggests that people with kidney function impairment should pay attention to their fluctuating weight status, and those with fluctuating weight may benefit from receiving appropriate screening and risk factor management to prevent cardiovascular disease or progression of their kidney dysfunction."
The results were similar in the subgroups divided according to positive/negative trends in BMI during the exposure assessment period. In addition, variabilities in certain metabolic syndrome components were also significantly associated with the prognosis of predialysis CKD patients. Furthermore, those with a higher number of metabolic syndrome components with high variability had a worse prognosis.
Reference:
The article, titled "The Prognostic Significance of Body Mass Index and Metabolic Parameter Variabilities in Predialysis Chronic Kidney Disease: A Nationwide Observational Cohort Study," is published in the Journal of the American Society of Nephrology (JASN).
DOI: https://jasn.asnjournals.org/content/early/2021/08/12/ASN.2020121694
Hina Zahid Joined Medical Dialogue in 2017 with a passion to work as a Reporter. She coordinates with various national and international journals and association and covers all the stories related to Medical guidelines, Medical Journals, rare medical surgeries as well as all the updates in the medical field. Email:Â editorial@medicaldialogues.in. Contact no. 011-43720751
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751