Marengo CIMS Hospital is dedicated to providing comprehensive healthcare services and fostering patient well-being. As part of our commitment to patient education, we have developed the Marengo CIMS Hospital Medical Encyclopedia—an invaluable online resource designed to empower patients with knowledge about various medical conditions, treatments, and preventive measures. This encyclopedia serves as a trusted and accessible repository of medical information, allowing patients to make informed decisions regarding their health and collaborate more effectively with healthcare professionals.


In India, cardiovascular diseases (CVDs) are a significant public health issue, responsible for a considerable number of deaths each year. Among the various forms of CVDs, unstable angina poses a particular challenge due to  its unpredictable nature and potential for severe complications. This article aims to shed light on unstable angina, its signs and symptoms, risk factors, types, diagnostic tests, treatments, and potential complications in the context of India, using simple and easy-to-understand language.

Signs and Symptoms:

Unstable angina is a type of chest pain that occurs when the blood flow to the heart is restricted, resulting in inadequate oxygen supply to the heart muscle. The most common symptom of unstable angina is chest discomfort or pain, which may feel like a squeezing, pressure, or heaviness. However, it is important to note that chest pain alone may not always be present in unstable angina. Other symptoms can include shortness of breath, fatigue, sweating, nausea, and lightheadedness.

What is Unstable Angina? :

Unstable angina, also known as acute coronary syndrome (ACS), is a form of angina pectoris that presents an increased risk of a heart attack. It is characterized by chest pain that occurs at rest or with minimal exertion, and the pain may be more severe and prolonged compared to stable angina. Unstable angina is considered a medical emergency, as it signifies an imminent threat to the heart’s blood supply and requires immediate medical attention. 

How is Unstable Angina Diagnosed? :

To diagnose unstable angina, doctors employ various diagnostic tests to assess the condition of the heart and determine appropriate treatment options. Some common diagnostic tests used in India include:

  •  Electrocardiogram (ECG): An ECG records the electrical activity of the heart and can help identify abnormal heart rhythms, blockages, or damage to the heart muscle.
  •  Cardiac Enzyme Tests: These blood tests measure the levels of certain enzymes, such as troponin, in the blood. Elevated levels of these enzymes can indicate heart muscle damage, suggesting unstable angina or a heart attack.
  •  Stress Testing: Stress tests evaluate how the heart performs under physical stress. It can involve exercising on a treadmill or receiving medications that simulate the effects of exercise on the heart. Changes in the ECG during stress testing can provide valuable insights into the heart’s condition.
  •  Coronary Angiography: This invasive procedure involves injecting a contrast dye into the coronary arteries, followed by X-ray imaging. It helps visualize any blockages or narrowing of the arteries, guiding further treatment decisions.

Treatment Options for Unstable Angina:

Once diagnosed, the management of unstable angina primarily focuses on stabilizing the condition, relieving symptoms, and reducing the risk of complications. Treatments commonly used in India include:

  •  Medications: Nitroglycerin is often prescribed to relieve chest pain by relaxing and widening blood vessels. Aspirin and other antiplatelet medications may be prescribed to prevent blood clots. Additionally, beta-blockers, calcium channel blockers, and statins may be recommended to control blood pressure, reduce heart rate, and manage cholesterol levels.
  •  Angioplasty and Stenting: In cases where significant blockages are identified through coronary angiography, angioplasty may be performed. This procedure involves inserting a balloon-tipped catheter into the blocked artery and inflating it to widen the artery. A stent, a small mesh tube, may also be placed to keep the artery open.
  •  Coronary Artery Bypass Grafting (CABG): CABG surgery may be recommended for individuals with severe blockages in multiple coronary arteries. It involves bypassing the blocked arteries using blood vessels from other parts of the body, restoring blood flow to the heart.

 Complications of Unstable Angina:

Unstable angina poses several potential complications, including:

  • Heart Attack: Unstable angina carries a high risk of progressing to a heart attack, where a complete blockage of a coronary artery occurs, leading to significant damage to the heart muscle.
  •  Heart Failure: Severe and prolonged episodes of unstable angina can weaken the heart muscle and impair its ability to pump blood effectively, resulting in heart failure.
  •  Arrhythmias: Disturbances in the heart’s electrical system can cause irregular heart rhythms (arrhythmias), which can be life-threatening if not promptly addressed.
  • Death: If left untreated or if complications arise, unstable angina can result in cardiac arrest or sudden death.

Unstable angina is a critical cardiovascular condition characterized by chest pain or discomfort caused by reduced blood flow to the heart. Prompt and effective management is essential to prevent potentially life-threatening outcomes such as heart attacks. Marengo Asia Hospitals, spread across India, has emerged as a leading healthcare provider with a comprehensive approach to handling patients with unstable angina. By implementing advanced technologies, employing skilled healthcare professionals, and fostering a patient-centric environment, Marengo Network has established itself as a beacon of excellence in cardiovascular care.

State-of-the-Art Facilities and Technologies:

Marengo Asia Hospitals stands out for its commitment to equipping its facilities with state-of-the-art technologies that aid in the accurate diagnosis and effective treatment of unstable angina patients. Advanced imaging techniques, such as cardiac computed tomography (CT) scans and magnetic resonance imaging (MRI), enable precise identification of coronary artery blockages and the extent of damage to the heart muscle. Additionally, cutting-edge cardiac catheterization laboratories equipped with angiography machines facilitate interventional procedures, including angioplasty and stenting, to restore blood flow and alleviate symptoms.

Skilled Healthcare Professionals:

The success of any healthcare institution depends heavily on the competence and expertise of its medical staff. Marengo Asia Hospitals understands this and boasts a team of highly skilled healthcare professionals, including cardiologists, cardiac surgeons, nurses, and support staff, who specialize in the management of unstable angina. These professionals have extensive experience in handling complex cardiac cases, ensuring that patients receive optimal care at every stage of their treatment journey.

Comprehensive Treatment Approach:

Marengo Asia Hospitals adopts a multidisciplinary approach to managing unstable angina patients. A patient’s treatment plan is customized based on their individual needs and may include a combination of pharmacological interventions, invasive procedures, and lifestyle modifications. The hospitals prioritize timely interventions to stabilize patients, manage symptoms, and prevent further complications. Additionally, the network’s hospitals offer cardiac rehabilitation programs that focus on lifestyle changes, including exercise, dietary modifications, and stress management, which play a crucial role in long-term recovery and prevention.

Emergency Response and Triage:

Given the critical nature of unstable angina, Marengo Asia Hospitals ensures that patients receive immediate attention and appropriate triage. Emergency departments within the network’s hospitals are equipped with skilled medical teams and efficient triage systems that quickly identify patients with unstable angina and prioritize their care. This streamlined approach facilitates the early initiation of treatment, reducing the risk of adverse cardiac events and improving patient outcomes.

Patient-Centric Care and Support:

Marengo Asia Hospitals places great emphasis on providing patient-centric care and support throughout the treatment process. Recognizing the anxiety and stress associated with unstable angina, the hospitals’ staff are trained to offer emotional support and clear communication to patients and their families. Educating patients about their condition, treatment options, and lifestyle modifications empowers them to actively participate in their recovery journey. The hospitals also prioritize follow-up care to ensure patients receive continued support and regular monitoring to manage their condition effectively.

Research and Innovation:

In line with its commitment to advancing cardiovascular care, Marengo Asia Hospitals actively engages in research and innovation. Through collaborations with leading academic institutions and participation in clinical trials, the network contributes to the development of novel treatment strategies and the evaluation of emerging therapies for unstable angina. By staying at the forefront of medical advancements, the network continuously improves its treatment protocols and ensures patients have access to the latest evidence-based care.

Marengo Asia Hospitals across India has emerged as a leader in managing patients with unstable angina. Through the integration of advanced technologies, a team of skilled healthcare professionals, patient-centric care, and a multidisciplinary approach, the network ensures that patients receive comprehensive and timely treatment. By prioritizing excellence in cardiovascular care, Marengo Asia Hospital sets a high standard for the management of unstable angina and plays a significant role in reducing mortality rates and improving the quality of life for countless patients across the country.


Contact Us

Marengo CIMS Hospital
Off Science City Road, Sola, Ahmedabad – 380060
Gujarat, INDIA

24×7 Helpline +91 70 69 00 00 00
Phone: 079 4805 1200 or 1008
+91 79 2771 2771 or 72
Fax: +91 79 2771 2770
Mobile: +91 98250 66664 or +91 98250 66668
Ambulance: +91 98244 50000
Email: info@cims.org