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  • Both high and low...

Both high and low levels of Total Cholesterol tied to increased Mortality In Peritoneal Dialysis patients

Written By : Dr. Kamal Kant Kohli Published On 2023-05-26T20:00:08+05:30  |  Updated On 26 May 2023 8:00 PM IST
Both high and low levels of Total Cholesterol tied to increased Mortality In Peritoneal Dialysis patients
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A recent study published in BMC Nephrology examined the relationship between total cholesterol levels and mortality risk in peritoneal dialysis (PD) patients. Contrary to common belief, total cholesterol levels showed a U-shaped association with mortality, suggesting that both high and low levels were associated with increased risks. This finding challenges the traditional understanding of cholesterol's impact on health outcomes and prompts a reevaluation of the optimal range for total cholesterol in PD patients.

A comprehensive investigation was carried out by Junnan Wu and colleagues involving 3565 incident PD patients from five PD centres, encompassing the period from January 1, 2005, to May 31, 2020. Prior to the commencement of PD, baseline variables were recorded within a week. By utilizing cause-specific hazard models, the relationship between total cholesterol levels and mortality was thoroughly explored.
The findings of the study were:
● During the follow-up period, a total of 820 patients (23.0%) experienced mortality, with 415 of them being cardiovascular deaths.
● Analysis of restricted spline plots revealed a U-shaped relationship between total cholesterol levels and mortality.
● Comparing the results to the reference range (4.10–4.50 mmol/L), elevated total cholesterol levels (> 4.50 mmol/L) were associated with increased risks of both all-cause mortality (hazard ratio [HR] 1.35, 95% confidence index [CI] 1.08–1.67) and cardiovascular mortality (HR 1.38, 95% CI 1.09–1.87).
● Lower total cholesterol levels (< 4.10 mmol/L) compared to the reference range were also linked to higher risks of all-cause mortality (HR 1.62, 95% CI 1.31-1.95) and cardiovascular mortality (HR 1.72, 95% CI 1.27–2.34).
This U-shaped association challenges the conventional belief that high cholesterol levels are universally detrimental to health. It highlights the importance of considering individual patient characteristics and tailoring treatment approaches accordingly. Further research is needed to understand the underlying mechanisms driving this association and to validate the findings in larger and more diverse patient populations.
The implications of these findings are significant for the management of PD patients. Healthcare professionals should consider the total cholesterol levels within the optimal range as a potential indicator of better health outcomes and lower mortality risk. However, it is crucial to approach cholesterol management holistically, taking into account other factors such as comorbidities and individual patient needs.
These unexpected results call for a paradigm shift in our understanding of cholesterol's role in PD patient care. By recognizing the existence of an optimal range for total cholesterol levels, healthcare providers can refine their treatment strategies and potentially improve patient outcomes. Future studies and clinical guidelines should take into account these findings to ensure that PD patients receive the most appropriate and effective care tailored to their specific cholesterol needs.
Reference:

Wu, J., Yang, R., Wang, X., Zhan, X., Wen, Y., Feng, X., Wang, N., Peng, F., Jian, G., & Wu, X. (2023). Total cholesterol and mortality in peritoneal dialysis: a retrospective cohort study. BMC Nephrology, 24(1). https://doi.org/10.1186/s12882-023-03187-1.

BMC Nephrologytotal cholesterolPeritoneal Dialysis
Source : BMC Nephrology
Dr. Kamal Kant Kohli
Dr. Kamal Kant Kohli

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

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