What information is available about the Indonesian Renal Registry?

Indonesian Renal Registry: Overview and Current Status

The Indonesian Renal Registry (IRR) is a national database established to track end-stage kidney disease (ESKD) patients undergoing renal replacement therapy in Indonesia, with recent data demonstrating a one-year hemodialysis survival rate of 91.5% among 122,449 patients analyzed between 2016-2019. 1

Registry Development and Purpose

The Indonesian Renal Registry was developed relatively recently as a national system to address the rapidly growing burden of ESKD in Indonesia, which has experienced the highest surge in ESKD prevalence globally over the past decade 1. The registry serves multiple critical functions:

• Health outcomes reporting and monitoring of ESKD patients receiving renal replacement therapy 1
• Healthcare service evaluation to assess quality and adequacy of dialysis care 1
• Policy advocacy to inform government decision-making regarding kidney disease management 1
• Health infrastructure development planning to guide expansion of dialysis facilities and services 1

Key Registry Findings (2016-2019 Data)

Patient Demographics and Characteristics

The IRR data from 2016-2019 revealed important demographic patterns among ESKD patients on hemodialysis 1:

• Mean patient age: 52 years 1
• Gender distribution: 55.5% male, 44.5% female 1
• Primary CKD etiology: Hypertensive kidney disease (43.7%), followed by diabetic nephropathy 1

Survival Outcomes

The overall one-year survival rate for ESKD patients undergoing hemodialysis was 91.5% (95% CI: 91.3-91.6) 1. However, survival varied significantly based on several risk factors:

• Age: Survival decreased significantly with advancing age (p < 0.01) 1
• Gender: Female patients exhibited lower survival rates compared to males (p < 0.01) 1
• CKD etiology: Patients with diabetic nephropathy had the lowest survival rate among all CKD etiologies (p < 0.01) 1
• Dialysis adequacy: Among 11,633 patients assessed, 69.2% had inadequate dialysis (Kt/V below 1.8), and these patients had significantly lower survival rates (p=0.00015) 1

Historical Context and Development Challenges

Early Registry Development

Prior to the establishment of the comprehensive national registry, Indonesia faced significant challenges in tracking ESKD burden 2:

• Limited data collection: As of 2009, data were collected from only 13 nephrology centers divided into 7 geographic groups using specifically designed questionnaires 2
• Underestimation of disease burden: Early data significantly underestimated true incidence and prevalence rates due to incomplete national coverage 2
• Geographic disparities: Registry development was concentrated in urban centers, missing substantial rural populations 2

Infrastructure and Treatment Landscape

The registry development occurred alongside rapid expansion of dialysis services 2:

• Hemodialysis facilities developed rapidly, though further expansion remained necessary 2
• Peritoneal dialysis was only being introduced as an alternative renal replacement therapy as of 2009 2
• Kidney transplantation programs expanded very slowly 2
• Financial barriers: Renal replacement therapy remained unaffordable for most patients until government health insurance began covering financially strained families requiring treatment 2

Regional Context and Comparison

Asia-Pacific Registry Landscape

The Indonesian Renal Registry exists within a broader regional context where registry quality and accessibility vary considerably 3:

• Variable data quality: Registry data quality and accessibility are highly variable across the Asia-Pacific region 3
• Resource limitations: Many countries in the region face challenges in establishing well-resourced and developed registries 3
• Need for collaboration: Greater data sharing and collaboration among regional registries could advance nephrology care 3

Registry Applications

Renal registries in the Asia-Pacific region, including Indonesia, serve multiple purposes beyond basic data collection 3:

• Planning dialysis services based on population needs and geographic distribution 3
• Evaluating dialysis practices to identify areas for quality improvement 3
• Assessing health outcomes with the goal of improving quality of dialysis care 3
• Public health management and health-care planning, which represents the primary justification for government investment in national registries 3

Current Challenges and Gaps

Data Collection Limitations

Despite progress, the Indonesian Renal Registry faces ongoing challenges:

• Incomplete national coverage: The registry still does not capture all ESKD patients across Indonesia's vast geographic area 2
• Dialysis adequacy monitoring: Only 11,633 of 122,449 patients (9.5%) had dialysis adequacy (Kt/V) assessed, indicating substantial gaps in quality monitoring 1
• Limited transplant data: Kidney transplantation remains underrepresented in registry data due to slow program expansion 2

Quality of Care Issues

Registry data highlight significant quality concerns 1:

• Inadequate dialysis: 69.2% of assessed patients had Kt/V below the target of 1.8, indicating widespread inadequate dialysis 1
• Survival disparities: Lower survival rates among females and patients with diabetic nephropathy suggest opportunities for targeted interventions 1
• Age-related outcomes: Significantly decreased survival with advancing age requires attention to geriatric nephrology care 1

Clinical Implications

Risk Stratification

The IRR data enable identification of high-risk patient populations requiring intensified monitoring and intervention 1:

• Elderly patients require enhanced supportive care given significantly reduced survival 1
• Female patients need investigation into factors contributing to lower survival compared to males 1
• Diabetic nephropathy patients should receive aggressive glycemic control and cardiovascular risk management given lowest survival rates 1
• Patients with inadequate dialysis must have treatment intensified to achieve Kt/V ≥1.8 1

Quality Improvement Priorities

The registry identifies clear targets for quality improvement initiatives 1:

• Increase dialysis adequacy assessment from current 9.5% to universal monitoring 1
• Improve dialysis prescription to achieve adequate Kt/V in >90% of patients rather than current 30.8% 1
• Address gender disparities through investigation and targeted interventions 1
• Optimize management of diabetic nephropathy given disproportionately poor outcomes 1