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CABG (coronary artery bypass grafting) is one of the most commonly performed and most effective cardiac surgical procedures available for severe coronary artery disease. Atherosclerotic plaques narrow the coronary arteries over time, restricting blood flow and causing angina, heart attack or sudden cardiac death—conditions CABG addresses by restoring that flow before irreversible muscle damage can occur. For patients seeking cardiac surgery in central India, Indore offers internationally trained surgeons and modern facilities without any compromise in clinical outcomes.

What Is CABG Surgery?

Open-heart surgery that creates one or more bypass channels around blocked coronary arteries—this is the essence of CABG, and how it restores adequate blood flow to the deprived heart muscle. In this procedure a healthy vessel (typically the internal mammary artery from the chest wall or a saphenous vein from the leg) is taken from the patient and sewn into the coronary circulation to route blood past the blocked segment entirely. Each graft connects a healthy artery to the coronary artery beyond the blockage, allowing blood to reach the deprived heart muscle directly without passing through the narrowed segment. The number of bypasses performed like single, double, triple, or quadruple, depends on how many coronary arteries are significantly blocked.

When Is CABG Surgery Recommended?

Not every case of coronary artery disease is treatable by catheter-based techniques, and it is in those situations where disease is too widespread or anatomically complex that CABG becomes the recommended approach. They are:

  • Left main coronary artery disease: Narrowing here threatens the largest complication of heart health
  • Triple-vessel disease: Significant blockages in all three major coronary arteries 
  • Previous failed angioplasty or stenting, or restenosis (re-narrowing) within a previously placed stent
  • Patients who also require valve repair or correction of a structural defect at the same operation.

Conditions Treated with CABG

The conditions that lead to CABG referral span a spectrum, united by the shared need to restore coronary blood flow that cannot be achieved adequately by any other means. Doctors recommend CABG for:

  • Stable angina pectoris - persistent chest pain on exertion that restricts daily activities despite maximum medical therapy, where coronary anatomy favours surgery over stenting.
  • Acute coronary syndrome (unstable angina or non-ST-elevation myocardial infarction) in patients whose coronary anatomy (typically multi-vessel disease) makes catheter-based treatment unsuitable.
  • STEMI (ST-elevation myocardial infarction) where primary angioplasty has failed or cannot be performed within a safe time window.
  • Ischemic cardiomyopathy, including left ventricular dysfunction caused by diffuse coronary disease where revascularisation is expected to recover the stunned or hibernating heart muscle.

Types of CABG Procedures

Which surgical approach is used depends on the patient's coronary anatomy, cardiac function and overall fitness:

  • On-pump CABG: In this procedure the surgeon stops the heart entirely while a cardiopulmonary bypass machine (heart-lung machine) maintains circulation, allowing precise, unhurried work.
  • Off-pump CABG: Keeps the heart beating throughout surgery; specialised stabilising devices immobilise each graft site while the surrounding myocardium continues to contract, avoiding the bypass circuit.
  • Minimally invasive CABG: Where only one or two vessels need bypassing and anatomy is favourable, minimally invasive CABG avoids full sternotomy through smaller incisions, sometimes with robotic assistance, substantially reducing chest wall trauma.
  • Hybrid CABG: Hybrid revascularisation treats the left anterior descending artery with a surgical bypass, while catheter-based stenting handles the remaining blockages, limiting the extent of surgery required.

CABG Surgery Procedure

Most CABG operations take between three and six hours, carried out by a cardiac surgical team following a systematic sequence of steps.

  • Anaesthesia induction: After general anaesthesia, the chest is opened through a median sternotomy. Where on-pump surgery is planned, the cardiopulmonary bypass machine is connected at this point.
  • Graft vessels are harvested simultaneously: The internal mammary artery is freed from the chest wall with one end left in place while a separate team removes the saphenous vein from the leg.
  • Graft placement: Each graft is precisely sewn beyond the blockage; the integrity of every anastomosis (join) is confirmed before the heart is restarted, the bypass machine disconnected, and perfusion to the myocardium restored.
  • Wound closure: Once haemostasis is secured, the sternum is closed with stainless steel wires.

The patient is then transferred to the cardiac intensive care unit for continuous monitoring through the immediate postoperative period.

Risk and Complications

Like any major cardiac operation, CABG carries many risks. They are:

  • Significant postoperative bleeding 
  • Atrial fibrillation 
  • Stroke 
  • Chest wall healing complications, including wound infection, sternal instability and the rare occurrence of sternal non-union.

Benefits of CABG Surgery

CABG benefits patients well beyond the relief of angina symptoms alone:

  • The majority of patients are free of angina after CABG, with exercise tolerance and quality of life improving substantially.
  • Compared with medical therapy alone, CABG confers a significant long-term survival advantage in patients with left main disease, triple-vessel disease, or impaired left ventricular function.
  • A decade after surgery, the majority of internal mammary artery grafts remain fully patent.
  • Most patients leave CABG with far fewer anti-anginal medications than they needed before.
  • The majority of patients with CABG progress to full physical activity.

Why Choose CARE CHL Hospitals for CABG Surgery in Indore?

CARE CHL Hospitals, Indore, brings together an experienced team of cardiac surgeons, anaesthesiologists, and perfusionists with the full infrastructure to support complex cardiac surgery. Dedicated cardiac operating theatres, a cardiac intensive care unit, and intraoperative transoesophageal echocardiography mean that on-pump, off-pump, and hybrid CABG are all performed here, with every operative decision informed by real-time cardiac imaging.

Beyond the operation itself, CABG patients at CARE CHL Hospitals receive structured preoperative optimisation, postoperative rehabilitation and long-term outpatient follow-up. Recovery is supported across cardiology, cardiac surgery, physiotherapy and dietetics a coordinated approach designed to reduce the risk of future cardiovascular events, with services accessible to patients from Indore and across Madhya Pradesh.

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