Factors Associated with Sarcopenia in Maintenance Hemodialysis Patients: A Cross-Sectional Study

BACKGROUND

Sarcopenia is associated with worse outcomes in maintenance hemodialysis (MHD) patients. Differences in criteria and methods used to diagnose sarcopenia, results in a wide range of prevalence. Factors associated with sarcopenia in MHD have not been well-studied. This study aimed to investigate the prevalence and factors associated with sarcopenia in the MHD population.

METHODS

Observational cross-sectional study was done with 96 MHD patients aged ≥18 years old, with dialysis vintage ≥120 days at Cipto Mangunkusumo Hospital March-May 2022. Descriptive, bivariate, and logistic regression analysis were done to find sarcopenia's prevalence and association with Simplify Creatinine Index (SCI), type 2 diabetes (DM), Interleukin-6 (IL-6), nutritional status, physical activity, and phosphate serum level. Asian Working Group for Sarcopenia (AWGS) 2019 criteria used to diagnose sarcopenia, Hand Grip Strength (HGS) to identify muscle strength, Bioimpedance Spectroscopy (BIS) to calculate muscle mass, and 6-meter walk test to evaluate physical performance.

RESULTS

The prevalence of sarcopenia was 54.2%. Factors with a significant association in bivariate analysis were phosphate serum level (p=0.008), SCI (p=0.005) and low physical activity (International Physical Activity Questionnaire) (p-0.006). Logistic regression analysis found higher phosphate serum level and high physical activity protective of sarcopenia (OR 0.677;CI95% 0.493-0.93 and OR 0.313;CI95% 0.130-0.755 respectively).

CONCLUSION

The prevalence of sarcopenia in the MHD population was 54.2%. Phosphate serum level, SCI, and physical activity were significantly correlated with sarcopenia. Both high phosphate level and high physical activity were protective against sarcopenia.

Long-term outcomes and prognostic factors in kidney transplant recipients in Jakarta, Indonesia: a cohort study

OBJECTIVES

To determine the long-term survival rates and prognostic factors in kidney transplant (KT) recipients in Jakarta, Indonesia.

DESIGN

Retrospective cohort study.

SETTING

A KT centre in Jakarta.

PARTICIPANTS

We enrolled 754 consecutive adult recipients who underwent KT between 2010 and 2020.

MAIN OUTCOME MEASURES

Rates of 10-year patient, all-cause and death-censored graft survival and their prognostic factors in KT recipients.

RESULTS

The 10-year patient survival, all-cause survival and death-censored graft survival rates of KT recipients were 74%, 68% and 81%, respectively. The prognostic factors for poor patient survival were a pretransplant dialysis duration>24 months (HR 1.64, 95% CI, 1.08 to 2.49; p=0.02), cardiovascular disease (HR 1.59, 95% CI, 1.11 to 2.31; p=0.01), delayed graft function (DGF) (HR 4.94, 95% CI, 2.76 to 8.82; p<0.001), post-transplant infection (HR 2.63, 95% CI, 1.56 to 4.43; p<0.001) and acute rejection (HR 2.49, 95% CI, 1.20 to 5.15; p=0.01). All-cause graft survival was prognosticated by a pretransplant dialysis duration>24 months (HR 1.74, 95% CI, 1.15 to 2.47; p=0.007), cardiovascular disease (HR 1.65, 95% CI, 1.18 to 2.33; p=0.004), DGF (HR 5.39, 95% CI, 3.13 to 9.28; p<0.001), post-transplant infection (HR 2.46, 95% CI, 1.05 to 4.02; p<0.001) and acute rejection (HR 4.18, 95% CI, 2.23 to 7.84; p<0.001). Factors associated with poor death-censored graft survival were a pretransplant dialysis duration >24 months (HR 2.19, 95% CI, 1.32 to 3.63; p=0.002), cardiovascular disease (HR 1.65, 95% CI, 1.02 to 2.68; p=0.04) and acute rejection (HR 5.52, 95% CI, 2.80 to 10.83; p<0.001).

CONCLUSIONS

The survival rates of KT recipients are prognosticated by pretransplant dialysis duration, cardiovascular disease, DGF, post-transplant infection and acute rejection. Stricter eligibility criteria for recipients, more sensitive cross-match testing methods and better infection management strategies may be beneficial for improving the survival rates.

The Effect of Hyperfiltration on Kidney Function in Living Donor Kidney Transplantation: A Prospective Cohort Study

BACKGROUND

living kidney donation is a safe medical procedure. Kidney function after donation is crucial for donors' health and quality of life. Kidney hyperfiltration is a compensatory mechanism, which will preserve kidney function after unilateral nephrectomy. The number of studies regarding hyperfiltration in living kidney donors is limited. Our study aimed to explain kidney hyperfiltration mechanism and evaluate its effect on the kidney function within 30 days after surgery.

METHODS

our study was a prospective cohort study with 46 living-kidney donors participating in the study between April and December 2019. We evaluated main outcomes, the 30-day post-surgery kidney function, which was evaluated by calculating estimated glomerular filtration rate (eGFR) and Urinary Albumin to Creatinine Ratio (ACR). The subjects were categorized into two groups based on their 30-day outcomes, which were the adaptive (eGFR > 60 mL/min/1.73 m2 and/or ACR > 30 mg/g) and maladaptive (eGFR < 60 mL/min/1.73 m2 and/or ACR > 30 mg/g) groups. A series of evaluation including calculating the renal arterial resistive index (RI) and measuring urinary vascular endothelial growth factor (VEGF), neutrophil gelatinase-associated lipocalin (NGAL), and heparan sulfate (HS) levels were performed before surgery and serially until 30 days after surgery. Multivariate analysis with adjustments for confounding factors was done.

RESULTS

forty donors were included and mostly were female (67.5%). The average age and body mass index (BMI) were 45.85 (SD 9.74) years old and 24.36 (SD 3.73) kg/m2, respectively. Nineteen donors (47.5%) had maladaptive hyperfiltration outcomes. The hyperfiltration process was demonstrated by significant changes in renal arterial RI, urinary VEGF, NGAL, and HS levels (p<0.005). There was no significant difference regarding RI, urinary VEGF, NGAL, and HS levels between both groups. Several confounding factors (BMI over 25 kg/m2, familial relationship, age over 40 years old, and arterial stiffness) were significantly influenced by kidney hyperfiltration and outcomes (p<0.05).

CONCLUSION

the hyperfiltration process does not affect the 30-day post-nephrectomy kidney function of the donors. Several other factors may influence the hyperfiltration process and kidney function. Further study is necessary to evaluate kidney function and its other related variables with a longer period of time study duration.

7 Years Experience of Living Donor Kidney Transplantation in Indonesia: A Retrospective Cohort Study

BACKGROUND

kidney transplantation has been developing rapidly in Indonesia in recent years, yet data on transplants' characteristics and survival is still unavailable. In Indonesia, only living donors are permitted. Living donor are advantageous, but challenging to recruit. This study aimed to establish the graft and patient survival rates and to describe the characteristics of recipient and donor as well as the process of donor recruitment and evaluation of kidney transplantation in Indonesia.

METHODS

the study was a retrospective cohort on all donors and kidney transplant recipients at Cipto Mangunkusumo General Hospital (CMGH) from January 2011 to May 2017. Only recipients from January 2011 to May 2014 were included to establish the 1-year and 3-year graft and patient survival; which were described using Kaplan-Meier method.

RESULTS

data from 492 kidney transplant procedures were obtained (donor median age, 30 (17 - 66) years; 25.1% were family-related. Recipients mean age, 47 (SD 13.18 years). Data from total of 138 kidney transplant recipients were further analyzed. The 1-year death- censored graft survival, all-cause graft survival and patient survival were 92 %, 82.6 % and 87%. The 3-year death-censored graft survival, all-cause graft survival and patient survival were 90.6%, 76.1% and 79.7%. Kaplan-Meier's curve showed the highest mortality rates occured in the early months.

CONCLUSION

the 1-year graft and patient survival rate were 92% and 87%. The 3-year graft and patient survival rate were 90.6% and 79.7%. Only small percentage of donor were family-related. Living donor recruitment and evaluation are still a big challenge in Indonesia.