A coordinated emergency response program developed by Mary Mediatrix Medical Center in Batangas has significantly reduced deaths among heart attack patients, offering a potential model for other provinces seeking to improve access to life-saving cardiac care.
Known as Code HB, or Heart of Batangas, the initiative is the Philippines’ first ST-Elevation Myocardial Infarction (STEMI) Coordinated Hub-and-Spoke Network, connecting hospitals, physicians, ambulance services, and local communities to ensure that patients suffering from severe heart attacks receive timely medical intervention.
The program comes as ischemic heart disease remains the leading cause of death in the Philippines. According to the Philippine Statistics Authority (PSA), the condition accounted for 100,958 deaths from January to October 2025 alone.
A 10-year study of the Code HB Network found that in-hospital mortality among STEMI patients in Batangas declined from 15.4% to 8.7%, representing a 44% relative reduction in the risk of death.
For the medical professionals behind the initiative, the results demonstrate how a coordinated healthcare system can improve survival rates, particularly in areas where distance, transportation, and financial limitations often delay emergency treatment.
Interventional cardiologist Dr. Ariel Miranda, one of the program’s principal proponents, emphasized that rapid access to appropriate medical care is critical to preventing deaths and long-term complications from heart attacks.
“No one should die from a heart attack at all but only if we get them to a hospital within a certain window of time,” Miranda said.
STEMI is a severe form of heart attack caused by the complete blockage of a coronary artery, cutting off blood supply to part of the heart muscle. Without immediate treatment to restore blood flow, the condition can result in permanent heart damage or death.
Although Mary Mediatrix Medical Center operates two cardiac catheterization laboratories and maintains a team of specialists capable of performing emergency coronary interventions, Miranda acknowledged that advanced medical facilities alone cannot guarantee better patient outcomes.
“The treatment of acute coronary syndrome, most importantly STEMI (a total blockage of a heart artery that can be fatal) is highly developed. We have two cardiac catheterization laboratories and an expert staff but these are not enough if patients are unable to reach the hospital in time. We have to reach out to people and set up a program that brings them to the ER as fast as possible,” he explained.
Miranda said patients experiencing a suspected heart attack should ideally reach an emergency department within 90 minutes, with treatment sought as quickly as possible, particularly within the first three hours after symptoms begin.
Through its hub-and-spoke approach, Code HB establishes a referral and coordination system among participating healthcare facilities, allowing patients to be directed toward hospitals equipped to provide appropriate emergency cardiac treatment.
The initiative was developed through the efforts of several medical specialists, including Dr. Joselito Ramos, Dr. Romulo Rosita, Dr. Charles Esteban, Dr. Marylis Javier, Dr. Charles Tabora, and Dr. Rosalia Manaloto.
Expanded PhilHealth Coverage Eases Financial Burden
Beyond improving emergency response times, the program has also benefited from expanded government health insurance coverage that makes critical cardiac procedures more accessible to patients.
The implementation of PhilHealth’s Ischemic Heart Disease–Acute Myocardial Infarction (IHD-AMI-A) case-rate package in December 2024 substantially increased financial support for patients requiring emergency cardiac intervention.
According to figures presented by the program proponents, median PhilHealth reimbursement increased from approximately PHP30,000 before the new package to more than PHP500,000 in 2025.
At the same time, median out-of-pocket expenses among patients declined by approximately two-thirds, reducing the financial burden associated with emergency procedures such as coronary angioplasty.
Government guarantee letters have also helped cover remaining treatment costs, particularly for financially disadvantaged patients who might otherwise delay or decline potentially life-saving procedures.
The Code HB proponents have engaged PhilHealth in discussions aimed at further strengthening financial assistance for STEMI patients.
However, Miranda cautioned that the program’s achievements also highlight the continuing prevalence of cardiovascular disease in the country.
“The good side is that it speaks to our competence and means we are saving many lives. The downside is that it also means many people are still having heart attacks. We need to educate the public and step up prevention,” he said.
Public Awareness Remains a Major Challenge
Despite improvements in hospital coordination and financial assistance, doctors involved in Code HB continue to encounter patients who arrive at medical facilities several hours after the onset of heart attack symptoms.
Cardiologist Dr. Rosalia Manaloto said misconceptions about cardiovascular disease and limited awareness of its warning signs remain particularly common among indigent patients.
Some families, she noted, wait six to eight hours before seeking medical attention, while others postpone hospital visits until the following day.
Such delays can significantly reduce the effectiveness of emergency treatment and increase the risk of permanent heart damage, disability, and death.
The program therefore emphasizes community education alongside improvements in hospital referrals, ambulance coordination, and emergency medical services.
Medical professionals continue to encourage the public to recognize possible heart attack symptoms, including chest discomfort, shortness of breath, cold sweats, nausea, and pain extending to the arms, back, neck, or jaw, and to seek emergency medical assistance immediately.
Batangas Model Could Be Replicated Nationwide
With a decade of documented improvements in patient outcomes, Mary Mediatrix Medical Center believes the Code HB approach could be adapted by other provinces according to their geographical conditions, healthcare resources, and existing medical infrastructure.
Rather than requiring every hospital to maintain advanced cardiac facilities, the hub-and-spoke model allows healthcare providers to coordinate patient referrals and make better use of specialized treatment centers.
This approach could be particularly relevant to communities where access to interventional cardiology services remains limited and patients must travel considerable distances to receive emergency treatment.
The program’s proponents believe that expanding similar networks across the Philippines could help address preventable deaths associated with delayed heart attack treatment.
For the Code HB team, however, the ultimate objective extends beyond institutional recognition and awards.
The measure of the program’s success, they maintain, is the number of patients who receive treatment in time, survive a potentially fatal cardiac emergency, and return home to their families.
As cardiovascular disease continues to claim thousands of Filipino lives each year, the Batangas experience offers an example of how coordinated emergency response, accessible treatment, and community awareness can work together to improve patient survival.