Glycemic Control Improves Cardiac Recovery and QoL After PCI in Elderly AMI Patients
Overview
This study demonstrates that continuous blood glucose management after PCI significantly improves cardiac function recovery, reduces major adverse cardiovascular events (MACE), and enhances quality of life in elderly patients with acute myocardial infarction (AMI). Dynamic monitoring of glycemic control post-PCI provides superior prognostic value compared to baseline glucose control alone.
Background
Acute myocardial infarction (AMI) is a leading cause of mortality and disability, especially in the elderly population where incidence and in-hospital mortality rates are high. Percutaneous coronary intervention (PCI) reduces acute mortality but challenges remain with cardiac function recovery and long-term outcomes. Approximately 40% of elderly AMI patients have diabetes, which exacerbates myocardial injury and worsens prognosis. While acute phase glucose control is emphasized clinically, the impact of long-term glycemic dynamics post-PCI on cardiac recovery and quality of life is less understood.
Data Highlights
Group
HbA1c Control Status
n
MACE Incidence (%)
Mean LVEF (%)
Renal Function Preservation
Quality of Life
1
Continuous Good Control
34
Lowest
Highest
Best
Highest
2
Postoperative Improvement
15
Similar to Group 1
High
Good
High
3
Postoperative Deterioration
5
20
Lower
Worse
Lower
4
Persistent Poor Control
26
34.62
45.3 ± 6.1
Worst
Lowest
Key Findings
Patients with poor baseline glucose control had a significantly higher prevalence of diabetes (78.05% vs. 20.51%) and greater use of metformin and insulin.
Persistent poor glycemic control post-PCI (Group 4) was associated with the highest incidence of MACE (34.62%), lowest left ventricular ejection fraction (LVEF), worst renal function preservation, and poorest quality of life.
Patients who improved glycemic control after PCI (Group 2) had cardiac function and prognosis comparable to those with continuous good control (Group 1).
Postoperative deterioration in glycemic control (Group 3) increased the risk of MACE to 20%, indicating dynamic changes in glucose levels impact outcomes.
Dynamic monitoring of blood glucose post-PCI offers greater clinical prognostic value than baseline HbA1c alone.
Clinical Implications
Clinicians should prioritize continuous and dynamic glycemic management in elderly AMI patients undergoing PCI to optimize cardiac recovery and reduce adverse events. Regular monitoring and timely adjustment of hypoglycemic therapy post-PCI are essential to improve long-term renal function and quality of life. Individualized treatment balancing glucose control and safety is critical given the elderly population's vulnerability.
Conclusion
Sustained blood glucose control after PCI markedly improves cardiac function recovery and prognosis in elderly AMI patients. Dynamic glycemic monitoring surpasses baseline assessment in guiding clinical management and improving patient outcomes.
References
Hongsen Hospital, Harbin Medical University, 2023-2024 -- Effects of Glycemic Management on Cardiac Recovery and Quality of Life Following PCI in Older Adults with Acute Myocardial Infarction
