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At least 19 recordsLinked to original sources

[An adult case of anomalous origin of the left coronary artery from the pulmonary artery with the coronary artery-bronchial artery anastomosis].

A case was 33 years old man who had complained chest pain during exercise. He was diagnosed anomalous origin of the left coronary artery from the pulmonary artery by coronary angiography. At operation, left main coronary artery originated from the posterior wall of the pulmonary artery. Numerous retrograde flow was seen through left coronary artery during aortic cross clamping. The left coronary ostium was closed, because sufficient extracardial anastomosis to coronary artery should be thought. The post operative course was uneventful and the patient is asymptomatic. The selective bronchial artery angiography was performed and it demonstrated collaterals between the bronchial artery and the left circumflex artery. The Thallium scintigraphy had showed ischemia of antrolateral wall of the left ventricle before operation, but postoperatively there was no ischemic redistribution.

Adult↗

[A case of aortitis syndrome with anastomoses from left coronary artery to bronchial artery].

We reported a case of aortitis syndrome with about 10-year course from onset. The patient was a 44-year old female suffering from a cardiac failure. The angiogram revealed presence of aortic regurgitation, The angiogram revealed presence of aortic regurgitation, pulmonary vascular lesions, anastomosis from left coronary artery to bronchial artery and hypervascularity of bronchial artery. We considered the anastomosis from left coronary artery to bronchial artery as a collateral blood flow for the ischemic lesions of the lung. We abandoned aortic valve replacement because of the severe pulmonary vascular lesions and of the pulmonary dysfunction.

Adult↗

[A case of Osler-Weber-Rendu syndrome: therapeutic embolization of the pulmonary artery and bronchial artery].

We encountered a case in which the symptoms of hypoxia and hemoptysis improved after performing repeated pulmonary artery embolizations and bronchial artery embolization. A 22-year-old man was hospitalized in our institution with high fever, headache and unconsciousness in May of 2001. Subendocranial abscess was diagnosed, so we performed antibiotic therapy and drainage, but at that time he showed symptoms of hypoxia. We diagnosed Osler-Weber-Rendu syndrome because of multiple small nodular shadows in his chest CT, multiple arteriovenous fistulae in both lungs on pulmonary arteriography, and telangiectasis. We performed pulmonary artery embolization 6 times, and his hypoxia and right to left shunts improved. In the course of our therapy, hemoptysis appeared and dilatation of vessels was detected in the left bronchial arteriography, so we performed embolization of the left bronchial artery and the symptom improved. We concluded that we should take care to detect not only pulmonary arterial lesions but also bronchial arterial leisions in the diagnosis and therapy of respiratory symptoms of Osler-Weber-Rendu syndrome.

Adult↗

Local pulmonary malformation caused by bilateral coronary artery and bronchial artery fistulae to the left pulmonary artery in a patient with coronary artery disease.

At 10 years of age and again at 25, our patient had been treated for pulmonary tuberculosis due to the presence of a localized pulmonary shadow. Coronary angiography at age 59 revealed 3 fistulous communications: from the right and circumflex coronary arteries and from the left bronchial artery. All 3 emptied into the same recipient artery, the distal part of a left pulmonary artery branch, which produced substantial left-to-right shunt. On computed tomography, cystic formations could be seen in the pulmonic area. The pulmonary tuberculosis for which this patient had been treated in his youth was in the same part of the lung where the shunt was discovered. Our conclusion is that the initial diagnosis was in error.

Arterio-Arterial Fistula↗

Coronary artery to bronchial artery anastomosis in Takayasu's arteritis.

A 27-year-old woman presented with ischemia of the left arm and dizziness together with acute lateral wall myocardial ischemia. Physical examination showed narrowing of the arteries to the head and neck and upper limbs suggesting Takayasu's arteritis. Angiography demonstrated pulmonary and systemic involvement. There was complete occlusion of the right upper lobe pulmonary artery and a large collateral artery from the circumflex coronary artery which anastomosed with the right bronchial artery. This anastomotic channel has not to our knowledge been described Takayasu's arteritis.

Adult↗

[Angiographic identification of spinal cord arteries before bronchial artery embolization].

Ischemic spinal cord injury is the major risk of bronchial artery embolization. The spinal artery may be overlooked on initial intercostobronchial trunk arteriography, as a result of reverse flow within the intercostal branch. Its identification, conversely, is easier on postembolization angiography. An illustrative case is presented, with angiographic correlation. The pathophysiology of the reverse flow is discussed. Technical recommendations are proposed for its detection.

Adult↗

Bronchial artery perfusion scintigraphy to assess bronchial artery blood flow after lung transplantation.

UNLABELLED: The bronchial arterial system is inevitably interrupted in transplanted lungs when removing the organs from the donor, but it can be reestablished by direct bronchial artery revascularization (BAR) during implantation. The purpose of this study was to visualize and quantify the distribution of bronchial artery perfusion after en bloc double lung transplantation with BAR, by injecting radiolabeled macroaggregated albumin directly into the bronchial artery system. METHODS: BAR was performed using the internal mammary artery as conduit. Patients were imaged 1 mo (n = 13) or 2 y (n = 9) after en bloc double lung transplantation with BAR. Immediately after bronchial arteriography, 100 MBq macroaggregated albumin (45,000 particles) were injected through the arteriographic catheter. Gamma camera studies were then acquired in the anterior position. At the end of imaging, with the patient remaining in exactly the same position, 81mKr-ventilation scintigraphy or conventional intravenous pulmonary perfusion scintigraphy or both were performed. Images were evaluated by visual analysis, and a semiquantitative assessment of the bronchial arterial supply to the peripheral parts of the lungs was obtained with conventional pulmonary scintigraphy. RESULTS: The bronchial artery scintigraphic images showed that the major part of the bronchial arterial flow supplied central thoracic structures, but bronchial artery perfusion could also be demonstrated in the peripheral parts of the lungs when compared with conventional pulmonary scintigraphy. There were no differences between scintigrams obtained from patients studied 1 mo and 2 y post-transplantation. CONCLUSION: Total distribution of bronchial artery supply to the human lung has been visualized in lung transplant patients. This study demonstrates that this nutritive flow reaches even the most peripheral parts of the lungs and is present 1 mo as well as 2 y after lung transplantation. The results suggest that bronchial artery revascularization may be of significance for the long-term status of the lung transplant.

Adult↗

Bilateral fistulas from the internal mammary arteries and the bronchial arteries to the pulmonary arteries--a case report.

A 78-year-old man was admitted to hospital with heart failure and chronic bronchitis. A computed tomographic scan of the chest incidentally demonstrated bilateral abnormal vessels near the left atrium. Selective angiography showed that both internal mammary arteries and bronchial arteries communicated with the pulmonary arteries bilaterally. The patient refused surgery and was discharged on medical therapy. This is the first reported case of bilateral fistulas between the internal mammary arteries and bronchial arteries and the pulmonary arteries.

Aged↗

Role of the arterial bronchial system in the pathomechanism of the shock lung.

Experimental results suggested that in normovolaemia 0.5% of the total pulmonary circulation flows through the bronchial arteries. In haemorrhagic shock bronchial flow dropped to 0.04% of the total pulmonary circulation and ceased completely below 40 mmHg. The authors claim that a hypoperfusion of both circulatory systems (pulmonary and bronchial) is an important pathogenetic factor in the first step of the development of the shock lung. A two-hour abolishment of the nutritive circulation of the lung caused already hypotension, hypoxaemia and metabolic acidosis. Tissue hypoxia was confirmed by the rise in the enzymatic activity of the lung tissue. An abolishment of bronchial circulation in the described manner was enough to induce the development of the shock lung, as confirmed by the visible changes (changed colour, greater weight, development of congestive atelectasis and oedema) of the lung and by the haemodynamic and respiratory changes. Here too the increase in pulmonary vascular resistance is attributed an important role due perhaps in the beginning to an enhancement of the sympathetic tone and later to hypoxia and metabolic acidosis. If the effect of haemorrhage alone is compared to the effect of simultaneous haemorrhage and elimination of the bronchial artery, it appears that the functional lesion of the lung becomes considerably more pronounced with the abolishment of the nutritive circulation. Severe hypoxia and metabolic acidosis cause an extreme rise of the pulmonary vascular resistance. The severity of metabolic acidosis, the degree to which pulmonary vascular resistance has increased and its duration seem decisive from the aspect of both the development and outcome of the shock lung.

Animals↗