Congenital left ventricular diverticula are rare cardiac malformations that usually remain asymptomatic. However, life‐threatening complications as ventricular arrhythmias, systemic embolism, spontaneous rupture and development of valvular regurgitation, are described. Diagnosis is based on excluding coronary artery disease, traumatic or inflammatory causes, and other underlying cardiomyopathies. Treatment is directed towards the potential complications, yielding mainly therapy of ventricular arrhythmia. Surgical resection is required for larger‐sized congenital aneurysms with adverse hemodynamic effects. We present two cases of a left ventricular diverticulum causing cardiac arrhythmia which led to further surgical treatment.

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Thoracic outlet syndrome is a mechanical space problem in which the brachial plexus and/or subclavian vessels are compressed. Arterial compression is least common and almost always associated with a bony anomaly. We present a case of a 49-year-old woman with a prominent first rib which caused a subclavian artery stenosis. There are many options for subclavian artery repair through open surgery. In high-risk patients, minimal invasive techniques are favorable. To date, few case reports exist on an endovascular artery repair combined with open first rib resection. While long-term follow-up will be necessary, our preliminary results seem promising.