Ruptured chordae tendineae of the posterior leaflet of the tricuspid valve as a cause of tricuspid regurgitation following blunt chest trauma

Platypnea-Orthodeoxia Syndrome Associated with Spontaneously Ruptured Chordae Tendineae of Tricuspid Valve

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POS is a rare clinical condition.

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Symptoms are upright posture dyspnea and arterial desaturation.

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Supine and sitting position oxygen saturation levels suggest right-to-left shunt.

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First report of uncommon spontaneous tricuspid valve chordal rupture–induced POS.

Severe tricuspid regurgitation and atrioventicular block caused by blunt thoracic trauma in an elderly woman

BACKGROUND

Symptomatic cardiac injury after blunt chest trauma is relatively rare, and valvular injury is even more rare. The valves most commonly affected are tricuspid. Automobile accidents are mostly responsible for this type of injury.

OBJECTIVES

Unlike with the mitral valve, post-traumatic tricuspid heart valve insufficiency is usually well tolerated. Indeed, severe tricuspid regurgitation can resolve spontaneously.

CASE REPORT

A 68-year-old woman with no previous cardiac or medical history was brought to our Emergency Department after an automobile accident. She had chest pain and shortness of breath upon admission. Transthoracic echocardiographic examination revealed severe tricuspid regurgitation with rupture of the chordae tendineae and prolapse of the valve cusps into the right atrium during systole. An electrocardiogram was consistent with second-degree Mobitz II atrioventricular block on admission, which subsequently progressed to complete atrioventricular block on day 3. During follow-up with close hemodynamic monitoring, her symptoms disappeared and repeat echocardiography revealed a regression in the severity of tricuspid regurgitation. Operative repair of the tricuspid valve was deemed unnecessary and the patient was discharged with medical therapy on the eighth day after admission.

CONCLUSIONS

It is important to be aware of traumatic tricuspid regurgitation after non-penetrating chest trauma. Close follow-up may suffice in some patients with stable hemodynamic conditions, and regression of tricuspid regurgitation can be expected during follow-up.

Traumatic tricuspid insufficiency with chordae tendinae rupture: a case report and literature review

With the increase in the number of automobile accidents, traumatic tricuspid insufficiency, a rare complication of non-penetrating blunt chest injury, has become an important problem. This kind of injury has been found more frequently during the last decade, partly because of better diagnostic procedures and a better understanding of the pathology. Here, we report a 22-year-old male patient who suffered chest trauma from an automobile accident. Echocardiography demonstrated tricuspid chordae tendinae rupture with remarkable tricuspid regurgitation. We discuss this case in comparison with the previous literature. This case reminds us that physicians in the emergency department should be aware of this potential complication following non-penetrating chest trauma.

Multiple heart and pericardial lacerations due to blunt trauma from assault

A case of 80-year-old woman who died of hemorrhagic shock as a consequence of multiple heart and pericardial lacerations as well as myocardial contusion due to blunt trauma from assault is reported. At postmortem examination, fractures of the body of the sternum and bilateral ribs were detected. A laceration of the anterior left-sided pericardium, a 2.8-cm linear tear in the right venous sinus from the origin of the inferior to the origin of the superior vena cava, a 3-cm laceration between the venous sinus and the right auricle, and a 2-cm tear in the anterior wall of the left atrium, behind the aortic trunk, were visible. Multiple heart and pericardial lacerations were thought to be caused by compression of the heart between sternum and vertebrae, together with multiple rib fractures and extensive movements of the sternum toward the spine as a result of kicking.

Trauma to cardiac valves

Cardiorrhaphy is a relatively common procedure performed in a trauma center. However, there is a subgroup of patients with more complicated cardiac injuries such as coronary artery injuries, septal defects, and valvular injuries. Cardiac valvular injuries are often diagnosed subacutely when a new murmur is heard. Transesophageal echocardiography has been increasingly performed to diagnosis these injuries and may be helpful intraoperatively. Cardiac catheterization may be indicated in selected patients. Techniques to address these injuries may involve repair or prosthetic replacement. A high index of suspicion is needed to diagnose these relatively rare injuries.