
Cardiothoracic surgery is a complex field. It deals with surgeries on the heart, lungs, and other chest organs. A cardiothoracic surgeon is key in treating serious conditions like heart disease and lung cancer.
Thanks to new medical tech, cardiothoracic surgery has grown more advanced. This offers patients many treatment choices. A cardiac surgeon can do operations like coronary artery bypass grafting and lung transplants. These can greatly improve a patient’s life quality.
Key Takeaways
- Cardiothoracic surgery involves surgical procedures on the heart, lungs, and chest organs.
- A cardiothoracic surgeon treats life-threatening conditions like heart disease and lung cancer.
- Advances in medical technology have improved cardiothoracic surgical procedures.
- Cardiothoracic surgeons perform a range of operations, including coronary artery bypass grafting and lung transplants.
- These surgical procedures can significantly improve a patient’s quality of life.
The Scope of Cardiothoracic Surgery

Cardiothoracic surgery has grown a lot over time. It now uses new techniques and technology to help patients. This field deals with surgeries of the heart, lungs, and other organs in the chest.
Definition and Medical Specialty
Cardiothoracic surgery is a special area of medicine. It focuses on surgeries of the heart, lungs, and chest structures. Surgeons in this field need to know a lot about the body’s inner workings and how to do complex surgeries.
They get a lot of training to learn both the technical skills and the judgment needed. The field includes many surgeries, like fixing heart arteries and transplanting hearts. It also includes lung and esophageal surgeries.
These surgeries help treat heart disease, lung cancer, and other conditions. They are done to fix problems like blocked heart arteries and damaged heart valves.
Historical Development of the Field
The history of cardiothoracic surgery is filled with important milestones. In the beginning, it was about fixing heart injuries and birth defects. Later, new technology like heart-lung machines made more complex surgeries possible.
Today, the field keeps getting better. New techniques like robot-assisted surgery and VATS are making recovery faster and outcomes better. These changes show how cardiothoracic surgery is always evolving to meet new challenges and opportunities.
The Role of a Thoracic Surgeon

A thoracic surgeon is key in surgeries of the heart, lungs, and chest. They get deep training to handle the complex tasks of cardiothoracic surgery.
Primary Responsibilities and Expertise
Thoracic surgeons diagnose and treat chest conditions. They are skilled in surgeries like coronary artery bypass grafting and lung resection. They also perform heart transplants.
- They do preoperative checks to find the best surgery plan.
- They carry out detailed surgeries with great care.
- They look after patients after surgery to help them heal.
These doctors need to know the chest’s anatomy well. They also keep up with new surgical methods.
Education and Training Requirements
To be a thoracic surgeon, one needs a lot of education and training. This includes:
- Getting a bachelor’s degree in a science field.
- Going to medical school for an M.D. or D.O. degree.
- Doing a residency in cardiothoracic surgery for years.
- Getting a license to practice medicine.
Many also do fellowship programs for more specialized training.
Board Certification and Specializations
Getting board certified is a big step for thoracic surgeons. It shows they are experts and care deeply about their patients. They can specialize in:
- Cardiac surgery, for heart issues.
- Thoracic surgery, for lungs and chest problems.
- Special techniques, like minimally invasive surgery.
By staying certified and updated, thoracic surgeons can give their patients the best care.
Cardiac Surgery vs. Thoracic Surgery: Key Differences
Cardiothoracic surgery is divided into cardiac and thoracic surgery. Each has its own set of procedures and specialties. Knowing the differences helps patients and doctors make better choices.
Cardiac Surgery Focus and Procedures
Cardiac surgery deals with the heart. It includes fixing or replacing heart valves and correcting heart defects. Cardiac surgeons use both traditional and minimally invasive methods.
Some main cardiac surgery procedures are:
- Coronary artery bypass grafting (CABG)
- Heart valve repair and replacement
- Surgery for congenital heart defects
- Heart transplantation
Thoracic Surgery Focus and Procedures
Thoracic surgery focuses on the chest area, excluding the heart. It involves operations on the lungs, esophagus, and diaphragm. Thoracic surgeons specialize in lung cancer and esophageal disorders.
Some key thoracic surgery procedures are:
- Lung resection for cancer or disease
- Esophagectomy for esophageal cancer or disorders
- Thoracic outlet syndrome repair
- Mediastinal tumor removal
In summary, cardiac and thoracic surgery are both important in cardiothoracic surgery. They have different focuses and procedures. Understanding these differences is key to navigating cardiothoracic surgical care.
Common Cardiac Procedures
Cardiac surgical procedures are key for managing heart conditions. They have evolved, providing effective treatments for various heart diseases.
Coronary Artery Bypass Grafting (CABG)
Coronary Artery Bypass Grafting, or CABG, improves blood flow to the heart. It uses grafts, often from the leg or chest, to bypass blocked arteries.
CABG is often recommended for severe coronary artery disease. It can greatly reduce heart attack risk and improve survival chances.
|
Procedure |
Description |
Benefits |
|---|---|---|
|
CABG |
Bypassing blocked coronary arteries |
Reduces risk of heart attack, improves survival |
|
Heart Valve Repair |
Repairing or replacing damaged heart valves |
Improves heart function, reduces symptoms |
|
Heart Transplantation |
Replacing a diseased heart with a healthy donor heart |
Life-saving for end-stage heart failure patients |
Heart Valve Repair and Replacement
Heart valve repair or replacement surgery treats diseased or damaged valves. The choice between repair or replacement depends on the valve disease’s type and severity.
Advances in surgery have improved outcomes for heart valve patients. New techniques and devices, like minimally invasive and transcatheter replacements, enhance care.
Heart Transplantation and Mechanical Assist Devices
Heart transplantation is a lifesaving option for end-stage heart failure patients. It replaces the diseased heart with a healthy donor heart.
Mechanical assist devices, like Left Ventricular Assist Devices (LVADs), support the heart. They are used for patients waiting for a transplant or as a long-term therapy.
Arrhythmia Surgery
Arrhythmia surgery treats irregular heart rhythms that don’t respond to other treatments. It uses surgical ablation to destroy abnormal electrical pathways in the heart.
The MAZE procedure is a known treatment for atrial fibrillation. It creates scar tissue in the heart to redirect abnormal electrical signals.
Understanding these cardiac procedures helps patients appreciate the complexities and advancements in cardiac surgery. This knowledge aids in making informed decisions about their care.
Common Thoracic Procedures
Thoracic surgeons do many operations. These include lung resection, esophageal surgery, and chest wall procedures. These surgeries help treat chest area conditions.
Lung Resection and Cancer Surgery
Lung resection is when part of the lung is removed. It’s often for lung cancer. There are different types:
- Lobectomy: removal of a lobe of the lung
- S segmentectomy: removal of a segment of the lung
- Pneumonectomy: removal of an entire lung
The right procedure depends on the disease’s size and location.
|
Procedure |
Description |
Indications |
|---|---|---|
|
Lobectomy |
Removal of a lobe of the lung |
Lung cancer, lung disease |
|
Segmentectomy |
Removal of a segment of the lung |
Early-stage lung cancer |
|
Pneumonectomy |
Removal of an entire lung |
Advanced lung cancer or disease |
Esophageal Surgery
Esophageal surgery treats esophageal cancer, achalasia, and GERD. Procedures include:
- Esophagectomy: removal of the esophagus
- Heller myotomy: a procedure to treat achalasia
- Fundoplication: a surgery to treat GERD
Chest Wall Procedures
Chest wall procedures treat chest wall issues. This includes tumors, deformities, or infections. These surgeries are complex and need careful planning.
Mediastinal Surgery
Mediastinal surgery is in the mediastinum, between the lungs. It treats thymoma, teratomas, and other masses.
Knowing about these thoracic procedures is key for patients. Each has its own reasons, benefits, and risks. Patients should talk to a thoracic surgeon about these.
Minimally Invasive Cardiothoracic Techniques
Minimally invasive cardiothoracic techniques have changed cardiac and thoracic surgery. They offer patients less painful options than traditional surgeries. These new methods help patients recover faster, have less scarring, and face fewer risks.
Robot-Assisted Surgery
Robot-assisted surgery is a big step forward in cardiothoracic surgery. It lets surgeons do complex tasks with better precision and control. The robotic system gives a clear, 3D view of the area being operated on.
A study in a Journal robot-assisted surgery cuts down on complications. It also improves results for patients.
“The integration of robotic technology into cardiothoracic surgery has opened new avenues for minimally invasive treatment options, improving patient outcomes and expanding the scope of surgical interventions.”
Video-Assisted Thoracoscopic Surgery (VATS)
VATS is a minimally invasive technique used in thoracic surgery. It uses a thin, lighted tube with a camera and small instruments through tiny chest openings. It’s often used for lung surgeries, like removing tumors or diseased lung parts.
VATS leads to less pain, shorter hospital stays, and quicker recovery times. This is compared to traditional chest surgeries.
Key benefits of VATS include:
- Smaller incisions, resulting in less scarring
- Reduced postoperative pain
- Shorter hospital stays
- Faster recovery times
Transcatheter Procedures
Transcatheter procedures use thin, flexible tubes inserted through blood vessels. They are used to treat heart diseases without open-heart surgery. A notable example is transcatheter aortic valve replacement (TAVR), where a new valve is placed without surgery.
A cardiothoracic surgeon, says, “Transcatheter procedures have changed how we treat complex heart conditions. They offer a less invasive option with good results.”
Conditions Treated by Cardiothoracic Surgeons
Cardiothoracic surgery deals with heart diseases, lung conditions, and esophageal disorders. These surgeons are experts in treating complex conditions of the heart, lungs, and chest. They offer both surgical and non-surgical treatments.
Heart Diseases
They handle heart diseases like coronary artery disease, heart valve disorders, and congenital heart defects. Coronary artery disease happens when arteries narrow or block due to plaque. This can lead to heart attacks.
Heart valve disorders affect the valves that control blood flow. In severe cases, they need repair or replacement.
Congenital heart defects are heart problems present at birth. They can be simple or complex, needing surgery.
|
Heart Condition |
Description |
Common Treatments |
|---|---|---|
|
Coronary Artery Disease |
Narrowing or blockage of coronary arteries |
CABG, Angioplasty |
|
Heart Valve Disorders |
Issues with heart valves |
Valve Repair, Valve Replacement |
|
Congenital Heart Defects |
Structural heart abnormalities at birth |
Surgical Repair |
Lung and Chest Conditions
They also treat lung and chest conditions like lung cancer, pneumothorax, and chest wall tumors. Lung cancer is when abnormal cells grow in the lungs, needing surgery. Pneumothorax, or a collapsed lung, happens when air leaks into the lung-chest wall space, sometimes needing surgery.
Chest wall tumors are growths on the chest wall, which can be benign or malignant. They often need surgical removal.
|
Lung/Chest Condition |
Description |
Common Treatments |
|---|---|---|
|
Lung Cancer |
Uncontrolled cell growth in lungs |
Surgical Resection, Chemotherapy |
|
Pneumothorax |
Air leak into lung-chest wall space |
Chest Tube Insertion, Surgery |
|
Chest Wall Tumors |
Abnormal growths on chest wall |
Surgical Removal |
Esophageal Disorders
Esophageal disorders treated include esophageal cancer, achalasia, and gastroesophageal reflux disease (GERD). Esophageal cancer is when cells grow abnormally in the esophagus, needing surgery. Achalasia is when esophageal muscles don’t work right, causing swallowing trouble.
GERD is when stomach acid flows back into the esophagus, causing heartburn. In severe cases, surgery may be needed to help symptoms.
|
Esophageal Disorder |
Description |
Common Treatments |
|---|---|---|
|
Esophageal Cancer |
Abnormal cell growth in esophagus |
Surgical Resection, Chemotherapy |
|
Achalasia |
Impaired esophageal muscle function |
Dilation, Surgical Myotomy |
|
GERD |
Stomach acid reflux into esophagus |
Lifestyle Changes, Surgery |
The Cardiothoracic Surgical Process
The cardiothoracic surgical process is a detailed, multi-step journey for patients with heart and lung issues. It includes careful planning, precise surgery, and detailed care after surgery. This ensures the best results for patients.
Preoperative Evaluation and Testing
Before surgery, patients undergo a detailed preoperative evaluation. This stage is key to check the patient’s health and spot any risks.
- Medical History Review: A deep look into the patient’s medical history to find any conditions that might affect the surgery or recovery.
- Physical Examination: A physical check to see the patient’s current health and find any signs of illness or conditions that need attention before surgery.
- Diagnostic Tests: Tests like echocardiograms, CT scans, and blood tests are done to check the heart and lung function.
During Surgery: What to Expect
Cardiothoracic surgery is a precise field that needs great skill. During surgery, the patient is under general anesthesia to keep them comfortable and pain-free.
The surgical team, led by a cardiothoracic surgeon, works together to do the procedure. The surgery type depends on the condition being treated, like CABG or lung resection.
Postoperative Care and Monitoring
After surgery, patients are watched closely in the ICU for any complications or reactions. Postoperative care focuses on managing pain, preventing infection, and ensuring the patient is recovering well.
- Pain Management: Strategies are used to manage pain effectively and help with recovery.
- Infection Prevention: Steps are taken to prevent infection, including antibiotics and a clean environment.
- Monitoring: The patient’s vital signs and condition are constantly monitored to quickly spot and handle any problems.
Understanding the cardiothoracic surgical process helps patients prepare for their journey. It lets them know what to expect at each stage.
Innovations in Cardiothoracic Surgery
Medical technology has led to big changes in cardiothoracic surgery. These changes are making surgeries more precise and improving patient results.
Technological Advancements
Technological progress is key in cardiothoracic surgery. Some major advancements include:
- Robot-Assisted Surgery: This makes surgeries more precise and cuts down recovery time.
- 3D Printing: It lets doctors create custom models and implants for surgery.
- Advanced Imaging Techniques: These improve how doctors diagnose and plan surgeries.
These technologies are making surgeries better and care for patients better. For example, robot-assisted surgery is less invasive. This means less harm to the patient and faster healing.
Future Directions and Research
The future of cardiothoracic surgery looks bright. Ongoing research aims to make surgeries even better. Some key areas include:
- Regenerative Medicine: This field looks into using stem cells and tissue engineering to fix heart and lung damage.
- Personalized Medicine: It’s about making treatments fit each patient’s unique needs based on their genes and biology.
- Minimally Invasive Techniques: This area focuses on making surgeries less invasive to reduce recovery times and improve comfort.
As research continues, we’ll see even more innovative solutions in cardiothoracic surgery. This will lead to better care and results for patients.
Risks and Complications of Cardiothoracic Surgery
It’s important for patients and doctors to know about the risks of cardiothoracic surgery. This surgery can save lives but comes with big risks. It’s a complex procedure.
Common Complications
Cardiothoracic surgery can cause serious problems. Some of these issues can be very dangerous. Here are some common ones:
- Bleeding and hemorrhage: Too much bleeding during or after surgery is a big risk.
- Infection: Surgery can lead to infections, just like with any other surgery.
- Respiratory complications: Patients might face breathing problems, like pneumonia or acute respiratory distress syndrome.
- Cardiac complications: Heart-related issues, such as arrhythmias or cardiac arrest, can happen.
Risk Factors and Prevention Strategies
Some things can make surgery riskier. These include:
- Pre-existing medical conditions: Conditions like diabetes, hypertension, or COPD can raise risks.
- Age and overall health: Older patients or those in poor health are at higher risk.
- Lifestyle factors: Smoking and obesity are big risks that can be changed before surgery.
There are ways to prevent these risks. These include:
- Preoperative optimization: Making sure patients are as healthy as possible before surgery.
- Careful surgical planning: Surgeons and anesthesiologists plan the safest way to do the surgery.
- Postoperative care: Watching patients closely after surgery to catch and treat any problems quickly.
Recovery After Cardiothoracic Surgery
Knowing how to recover after cardiothoracic surgery is key. It involves medical care, rest, and slowly getting back to normal. This helps patients heal well.
Hospital Stay and Immediate Recovery
The recovery starts right after surgery, in the hospital. Patients are watched closely in the ICU for any issues. They also get pain meds to feel better.
Key aspects of hospital stay include:
- Monitoring of vital signs and overall health
- Pain management through medication
- Early mobilization to prevent complications
- Breathing exercises to improve lung function
Long-term Recovery and Rehabilitation
After leaving the hospital, recovery continues at home. This is a key time for healing and getting stronger.
Rehabilitation programs may include:
- Physical therapy to improve mobility and strength
- Nutritional counseling for a healthy diet
- Follow-up appointments to monitor healing
|
Aspect |
Description |
Timeline |
|---|---|---|
|
Pain Management |
Gradual reduction in pain medication |
First few weeks |
|
Physical Activity |
Progressive increase in exercise intensity |
Several months |
|
Follow-up Care |
Regular check-ups with healthcare provider |
Ongoing |
Lifestyle Adjustments After Surgery
Changing your lifestyle is important after surgery. Patients should make habits that help their health and lower risks of problems.
Recommended lifestyle adjustments include:
- Quitting smoking to improve lung health
- Eating a balanced diet to support healing
- Engaging in regular physical activity
- Managing stress through relaxation techniques
The Cardiothoracic Surgical Team
Every successful cardiothoracic surgery has a skilled and dedicated team behind it. This team works together to ensure the best results for patients. Their collaboration is key to success.
Key Team Members and Their Roles
The team includes several important members. Each plays a vital role in the surgery. Here are some of them:
- Cardiothoracic Surgeons: They do the surgery.
- Anesthesiologists: They give anesthesia and watch the patient’s health.
- Nurses: They help during surgery and care for the patient.
- Perfusionists: They run the heart-lung machine in heart surgeries.
- Respiratory Therapists: They handle ventilators and other breathing equipment.
|
Team Member |
Role |
|---|---|
|
Cardiothoracic Surgeons |
Perform the surgical operation |
|
Anesthesiologists |
Administer anesthesia and monitor vital signs |
|
Nurses |
Assist during surgery and provide patient care |
|
Perfusionists |
Operate the heart-lung machine |
|
Respiratory Therapists |
Manage respiratory equipment |
Collaborative Approach to Patient Care
The team’s success comes from working together. This includes not just the surgeons but also radiologists, cardiologists, and rehab specialists. Good communication and teamwork are essential. They make sure patients get the best care from start to finish.
“The success of cardiothoracic surgery is not just about the technical skill of the surgeon, but about the entire team’s ability to work together seamlessly.”
Cardiothoracic Surgeon
Working together makes care safer and better. It helps the team tackle complex problems. This leads to better recovery and life quality for patients.
Finding a Thoracic Surgeon Near Me
Finding the right thoracic surgeon is a big decision. It needs careful thought and research. Whether it’s a heart problem, lung disease, or another issue, a skilled surgeon can greatly affect your outcome.
Researching Qualified Surgeons
To find a thoracic surgeon near me, start by asking your primary care doctor or other healthcare pros. They can offer insights based on their experience and your specific needs.
Online directories and patient review sites are also helpful. Look for surgeons at well-known hospitals with good patient feedback.
Important Credentials to Look For
When looking at thoracic surgeons, focus on these key credentials:
- Board certification in thoracic surgery
- Experience with procedures for your condition
- Affiliation with a respected medical institution
- Positive patient reviews and outcomes
Having a surgeon with the right qualifications and experience can give you peace of mind. It can also improve your chances of a good outcome.
Questions to Ask During Consultation
After finding a surgeon, it’s important to ask the right questions during your consultation. Consider these:
- What experience do you have with my specific condition?
- What are the risks and benefits of the recommended procedure?
- What’s the expected recovery time, and what support will be available?
- Are there other treatments or procedures to consider?
By asking these questions, you can better understand your treatment options. This helps you make an informed decision about your care.
Cardiothoracic Surgery vs. Other Specialties
Understanding the differences between cardiothoracic surgery and other specialties is key. Cardiothoracic surgeons work on the heart, lungs, and other organs in the chest. They need a deep understanding of these complex systems.
Cardiothoracic surgery is closely related to other surgical fields but has its own unique aspects. Knowing these differences helps patients make better choices about their care.
Comparison with Vascular Surgery
Vascular surgery and cardiothoracic surgery sometimes overlap. Both deal with the heart and blood vessels. But vascular surgery mainly focuses on blood vessels outside the heart and lungs.
|
Aspect |
Cardiothoracic Surgery |
Vascular Surgery |
|---|---|---|
|
Primary Focus |
Surgery of the heart, lungs, and thoracic organs |
Surgery of blood vessels outside the heart and lungs |
|
Common Procedures |
CABG, heart valve repair, lung resection |
Carotid endarterectomy, aneurysm repair, bypass surgery |
Comparison with General Surgery
General surgery covers a wide range of procedures, including those in the abdomen and skin. Cardiothoracic surgery, on the other hand, is very specialized. It focuses on the heart, lungs, and chest area.
“The complexity and delicacy of cardiothoracic surgery require a level of expertise that is distinct from general surgery.” –
A renowned cardiothoracic surgeon
General surgeons might do some procedures related to cardiothoracic surgery, like inserting chest tubes. But, complex cardiothoracic surgeries are usually done by cardiothoracic surgeons. This is because they have specialized training.
When to See a Cardiothoracic Surgeon vs. Cardiologist
Both cardiologists and cardiothoracic surgeons are important in treating heart conditions. But, they have different areas of focus.
- Cardiologists diagnose and manage heart conditions medically, using tests like echocardiograms and stress tests.
- Cardiothoracic surgeons perform surgical interventions for heart and thoracic conditions, such as CABG or heart transplantation.
If you need surgery for your heart or chest, see a cardiothoracic surgeon. Working together, cardiologists and cardiothoracic surgeons can give the best care for complex heart conditions.
Pediatric Cardiothoracic Surgery
Pediatric cardiothoracic surgeons are key in treating heart defects and chest issues in kids. They need to understand children’s hearts and chests well. They also must be skilled in complex surgeries.
Congenital Heart Defects and Treatments
Congenital heart defects are heart problems kids are born with. These can be simple or very complex. Pediatric cardiothoracic surgeons use various surgeries to fix these problems.
Treating these defects often involves a team of doctors. Surgical options include fixing the defect or sometimes a heart transplant.
Special Considerations for Pediatric Patients
There are special things to think about in pediatric cardiothoracic surgery. Children’s hearts are smaller and more delicate. Their bodies work differently, needing special care.
Postoperative care is very important for kids. It focuses on managing pain, nutrition, and helping them recover. Pediatric cardiothoracic surgeons work with other doctors to give kids the best care.
Conclusion: The Vital Impact of Cardiothoracic Surgery
Cardiothoracic surgery has changed how we treat heart and lung problems. It has greatly improved patient results and saved many lives. The work of thoracic surgeons is key for those with heart and lung diseases.
Thanks to new tech and surgical methods, cardiothoracic surgery keeps getting better. It now offers hope to people with conditions that were once untreatable. The team of cardiothoracic surgeons works together to give patients the best care, from start to finish.
The role of cardiothoracic surgery in medicine is huge. It has made a big difference in patients’ lives. This shows how important cardiothoracic surgeons are in giving life-changing care.
FAQ
What is cardiothoracic surgery?
Cardiothoracic surgery is a field that deals with surgeries of the heart, lungs, and chest. It combines cardiac and thoracic surgery.
What does a cardiothoracic surgeon do?
A cardiothoracic surgeon is a doctor who performs surgeries on the heart and lungs. They treat conditions like heart disease and lung cancer.
What is the difference between cardiac and thoracic surgery?
Cardiac surgery focuses on the heart, like bypass grafting. Thoracic surgery deals with the lungs and other chest organs.
What are some common cardiac procedures?
Common heart surgeries include bypass grafting and valve repair. They also do heart transplants and treat arrhythmias.
What are some common thoracic procedures?
Thoracic surgeries include lung removal and esophageal surgery. They also do chest wall and mediastinal surgeries.
What is minimally invasive cardiothoracic surgery?
This type of surgery uses small incisions and less damage. It includes robot-assisted and video-assisted surgeries.
How do I find a qualified thoracic surgeon?
Look for a surgeon with good credentials and experience. Ask about their success rates during a consultation.
What is the cardiothoracic surgical process?
The process starts with tests and evaluation. Then comes the surgery and post-care monitoring.
What are the risks and complications of cardiothoracic surgery?
Risks include bleeding and infection. Careful evaluation and post-care can help prevent these.
How long does it take to recover from cardiothoracic surgery?
Recovery time varies. Hospital stay is a few days to a week. Long-term recovery takes weeks to months.
What is pediatric cardiothoracic surgery?
It’s surgery for children’s heart and lungs. It often fixes congenital heart defects.
When should I see a cardiothoracic surgeon versus a cardiologist?
See a cardiothoracic surgeon for surgery. A cardiologist treats heart conditions without surgery.
What are the benefits of cardiothoracic surgery?
Surgery can improve life quality and survival rates. It relieves symptoms for heart and lung patients.
How has cardiothoracic surgery evolved over time?
It has grown with new technology and understanding of heart and lung conditions.
References
National Center for Biotechnology Information. Evidence-Based Medical Insight. Retrieved from https://www.ncbi.nlm.nih.gov/books/NBK532935/