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What Is RSOV? Symptoms, Echo Findings & When Repair Is Needed

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What Is RSOV? Symptoms, Echo Findings & When Repair Is Needed

If your cardiologist has mentioned RSOV or you have seen the term on an echo report, you likely have questions. What does RSOV stand for? What actually happens inside the heart? When does it require surgery?

This guide covers everything you need to know, from anatomy and symptoms to echocardiographic findings and treatment decisions.

What Is RSOV?

The full form of RSOV is Ruptured Sinus of Valsalva. 

Near the base of the body’s main artery sits a small pouch. When the wall of this pouch weakens and eventually tears, it opens a channel between the aorta and the heart that should not be there. Blood leaks through, travelling in the wrong direction and overloading the heart over time.

The aortic root contains three sinuses:

SinusLocation
Right Coronary SinusGives rise to the right coronary artery
Left Coronary SinusGives rise to the left coronary artery
Non-Coronary SinusDoes not give rise to a coronary artery

Most RSOV cases originate from the right coronary sinus, followed by the non-coronary sinus.

The rupture commonly enters:

  • Right ventricle (lower right chamber)
  • Right atrium (upper right chamber)
  • Less commonly, left-sided chambers or pulmonary artery (the major blood vessel connecting the right ventric to the lungs)

What are the Causes of RSOV?

RSOV can be congenital or acquired.

Congenital causes:

Some people are born with a weak spot where two parts near the aortic valve join together. Over time, that spot can stretch like a thin balloon, and eventually it may tear.

Acquired causes:

  • Infective endocarditis
  • Aortic dissection
  • Chest trauma
  • Marfan syndrome and other connective tissue disorders
  • Syphilitic aortitis (historically significant, now rare)
  • Atherosclerotic degeneration

Congenital RSOV is more common in Asian populations and is frequently associated with ventricular septal defect (VSD) and aortic valve regurgitation.

What are the Common Symptoms of RSOV?

In many cases, RSOV does not build up gradually. The rupture can happen without warning, and symptoms may appear suddenly and escalate quickly. 

Symptoms depend on:

  • Size of rupture
  • Speed of rupture
  • Volume of shunted blood
  • Presence of associated cardiac defects

Some patients remain asymptomatic for years before sudden deterioration occurs.

The symptoms may include:

  • Shortness of breath
  • Fatigue
  • Reduced exercise tolerance
  • Palpitations
  • Chest discomfort
  • Rapid heartbeat
  • Swelling in the legs
  • Dizziness

How Is RSOV Diagnosed?

Diagnosis typically involves imaging studies that define the anatomy and severity of the defect.

Echocardiography

Echocardiography is usually the first and most important diagnostic test.

It helps determine:

  • Location of rupture
  • Size of aneurysm
  • Direction of abnormal blood flow
  • Presence of associated VSD
  • Severity of chamber enlargement
  • Aortic valve function

Both transthoracic echocardiography (TTE) and transesophageal echocardiography (TEE) may be used.

Echo Findings of RSOV

RSOV often has characteristic echocardiographic features.

Typical Echo Findings Include:

  • Aneurysmal dilatation of the sinus of Valsalva
  • Wind-sock appearance of the ruptured aneurysm
  • Continuous turbulent flow into a receiving chamber
  • Left-to-right shunt on colour Doppler imaging
  • Enlargement of right-sided heart chambers
  • Increased pulmonary blood flow
  • Associated ventricular septal defect
  • Aortic regurgitation when present

The classic “wind-sock” appearance is one of the most recognised echocardiographic findings in RSOV.

Doppler Findings

Colour Doppler typically demonstrates:

  • Continuous high-velocity flow
  • Flow from the aorta into the right atrium or right ventricle
  • Significant shunting throughout the cardiac cycle

Additional Tests That May Be Required

Cardiac CT Scan

Provides detailed anatomical assessment of:

  • Aortic root
  • Aneurysm size
  • Rupture tract
  • Relationship to nearby structures

Cardiac MRI

Useful for:

  • Quantifying shunt volume
  • Assessing ventricular function
  • Surgical planning

Cardiac Catheterisation

May be performed when:

  • Coronary artery evaluation is required
  • Device closure is being considered
  • Additional haemodynamic assessment is needed

Device Closure vs Surgery: When Is Repair Needed?

FeatureSurgical RepairDevice Closure
InvasivenessOpen-heart surgeryMinimally invasive
Recovery TimeLongerShorter
Suitable for Complex DefectsYesLimited
Can Repair Associated VSDYesSelected cases
Long-Term DataExtensiveGrowing evidence

RSOV Repair Options

Treatment depends on the anatomy of the rupture, associated defects, and overall patient condition.

Surgical RSOV Repair

Surgery remains the traditional gold standard treatment.

The procedure typically involves:

  • Closure of the rupture
  • Repair of associated defects
  • Management of any aortic valve disease

Benefits include:

  • Durable long-term results
  • Ability to repair multiple defects simultaneously
  • Excellent success rates in experienced centres

Surgical repair is particularly useful when:

  • Large defects are present
  • VSD coexists
  • Significant aortic regurgitation is present
  • Complex anatomy exists

Device Closure for RSOV

Selected patients may be candidates for minimally invasive transcatheter closure.

During the procedure:

  1. A catheter is advanced through blood vessels.
  2. The rupture is crossed using guidewires.
  3. A closure device is positioned across the defect.
  4. The device seals abnormal blood flow.

Advantages include:

  • No open-heart surgery
  • Shorter hospital stay
  • Faster recovery
  • Reduced procedural trauma

Careful imaging assessment is required before choosing this approach.

RSOV Repair: Surgery vs Device Closure

FeatureSurgical RepairDevice Closure
InvasivenessOpen-heart surgeryMinimally invasive
Recovery TimeLongerShorter
Suitable for Complex DefectsYesLimited
Can Repair Associated VSDYesSelected cases
Long-Term DataExtensiveGrowing evidence

The best treatment option should be determined by a multidisciplinary structural heart team.

Consult Heart Valve Experts

RSOV can lead to serious complications if left untreated. Early diagnosis and timely intervention are key to preventing heart failure and preserving long-term heart function.

If you have been diagnosed with RSOV or have an abnormal echocardiogram, consult Heart Valve Experts for a comprehensive evaluation and personalised treatment plan. Our team specialises in advanced valve and structural heart care, including both surgical and minimally invasive treatment options.

Frequently Asked Questions

What is the full form of RSOV in cardiology?

RSOV stands for Ruptured Sinus of Valsalva, a condition where an aneurysm in one of the aortic sinuses ruptures into a heart chamber.

Is RSOV a serious condition?

Yes. Untreated RSOV can lead to heart failure, pulmonary hypertension, and progressive cardiac dysfunction.

Can RSOV be detected on echocardiography?

Yes. Echocardiography is the primary diagnostic tool and often shows the characteristic wind-sock appearance along with continuous abnormal blood flow.

Is RSOV associated with VSD?

Yes. Ventricular septal defect is one of the most common congenital abnormalities associated with RSOV.

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Dr. Ankur U. Phatarpekar

About The Author

Dr. Ankur U. Phatarpekar M.D., D.M., FSCAI

With over 15 years of expertise, Dr. Phatarpekar is recognised as a renowned interventional cardiologist in Mumbai, specialising in complex coronary interventions, structural heart procedures, and pioneering work in Transcatheter Aortic Valve Implantation (TAVI).

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