Matthew A Harris, Kevin K Whitehead, Matthew J Gillespie, Timothy Y Liu, Michael T Cosulich, David C Shin, Elizabeth Goldmuntz, Paul M Weinberg, Mark A Fogel
OBJECTIVES: We sought to investigate whether differential branch pulmonary artery (BPA) regurgitation correlates with differences in BPA anatomy and physiology. BACKGROUND: Patients with repaired conotruncal anomalies such as Tetralogy of Fallot frequently have residual BPA stenosis or BPA size differences. Previous reports have demonstrated an increased left pulmonary artery (LPA) regurgitant fraction (RF) in these patients. METHODS: We retrospectively reviewed 76 consecutive cardiac magnetic resonance (CMR) studies for BPA size and phase-contrast magnetic resonance data, including 13 consecutive patients who underwent both CMR and catheterization...
May 2011: JACC. Cardiovascular Imaging
Randi Drees, Alex Frydrychowicz, Nicholas S Keuler, Scott B Reeder, Rebecca Johnson
Pulmonary angiography using 64-multidetector-row computed tomography (MDCT) was used to evaluate pulmonary artery anatomy, and determine the sensitivity of pulmonary artery segment visualization in four Beagle dogs using images reconstructed to 0.625 mm and retro-reconstructed to 1.25 and 2.5 mm slice thickness. Morphologically, characteristic features included a focal narrowing in the right cranial pulmonary artery in all dogs, which should not be mistaken as stenosis. While the right cranial pulmonary artery divided into two equally sized branches that were tracked into the periphery of the lung lobe in all dogs, only a single left cranial (cranial portion) lobar artery was present...
July 2011: Veterinary Radiology & Ultrasound
Oliver Stumper, Vinay Bhole, Ben Anderson, Zdenka Reinhardt, Patrick Noonan, Chetan Mehta
BACKGROUND: Distal conduit obstruction is a recognized complication after surgery for congenital heart disease requiring implantation of a conduit from the right ventricle to the pulmonary arteries. Endovascular stenting of distal conduit obstruction can be challenging due to the proximity to the pulmonary artery bifurcation. OBJECTIVE: A technique is described, whereby a single stent is mounted onto two balloon angioplasty catheters in tandem. This ensemble was delivered to the distal conduit/pulmonary artery via a large Mullins sheath on two guidewires, one placed in each of the branch pulmonary arteries...
September 1, 2011: Catheterization and Cardiovascular Interventions
Michael E Barnes, Michael E Mitchell, James S Tweddell
Aortopulmonary window is a rare defect caused by failure of fusion of the two opposing conotruncal ridges that are responsible for separating the truncus arteriosus into the aorta and pulmonary artery. Aortopulmonary window may occur as an isolated lesion or it can be associated with other cardiac abnormalities in one third to one half of cases. The most common associated lesions are arch abnormalities, specifically interrupted aortic arch and coarctation of the aorta. Antenatal diagnosis is rare. In the current era, early mortality following repair of simple aortopulmonary window approaches zero and depends on the presence of associated lesions, especially interrupted aortic arch...
2011: Seminars in Thoracic and Cardiovascular Surgery. Pediatric Cardiac Surgery Annual
Xin Wu, Hong Yong Duan, Yong Quan Gu, Bing Chen, Zhong Gao Wang, Jian Zhang
Takayasu's arteritis (TA) is a chronic vasculitis involving the aorta and its main branches, the pulmonary arteries, and the coronary tree. Here we report a case of TA complicated by severe stenosis of the left coronary ostium with multivessel brachiocephalic involvement. A combination of these abnormalities could complicate underlying illness in patients, posing an increased risk of surgical morbidity. Simultaneous surgical treatment of the ascending aorta to left carotid artery bypass and coronary artery bypass using the great saphenous vein were performed...
April 2011: Surgery Today
Sanjiv Sharma, Ashish Gupta
Takayasu's arteritis is an idiopathic chronic inflammatory disease affecting the aorta, its major branches and the pulmonary arteries. It leads to stenosis, occlusion, dilatation, and aneurysm formation in the involved vessels. Visceral arterial involvement occurs in 11 to 68% cases. Steno-obstructive lesions are most commonly seen and are usually symptomatic. Dilative and aneurismal lesions are uncommon and, when present, are usually clinically silent. Renal arteries are most commonly involved (24 to 68%), resulting in renovascular hypertension, whereas mesenteric arterial involvement is seen in 11 to 28% cases and is usually clinically silent...
September 2009: Seminars in Interventional Radiology
N V Yaméogo, M B Ndiaye, M Diao, E C Cabral-Ciss, M Sarr, S A Ba
Pulmonary arteries aneurysms are rare and the rarely described bilateral aneurysms. A 45-year-old patient carrier of mitral stenosis was admitted for dyspnoea class III of the NYHA, chest pain and a not infectious cough. The clinical examination found semiology of mitral stenosis, tricuspid incapacity and pulmonary arterial hypertension. The electrocardiogram showed atrial fibrillation and right ventricle hypertrophy. Chest X-ray found a cardiomegaly, an aspect of double outline of the inferior right bow, a prominent aspect of the left average bow reminding an aneurysm of the left pulmonary artery...
February 2013: Annales de Cardiologie et D'angéiologie
D Theisen, R D Dalla Pozza, E Malec, M F Reiser
With prevalences ranging from 0.26 to 0.8‰ of all live births tetralogy of Fallot (TOF) is the most common congenital heart disease with primary cyanosis. Due to improvements in surgical techniques, nearly all patients can nowadays expect to reach adulthood. After surgical repair, pulmonary regurgitation (PR) occurs in almost every child and is an important contributing factor in long-term morbidity and mortality. Cardiac magnetic resonance imaging is well established for functional assessment and flow measurements and is an ideal tool for serial post-surgical follow-up examinations, as it is non-invasive and does not expose patients to ionizing radiation...
January 2011: Der Radiologe
J Daniel Robb, Matthew A Harris, Masahito Minakawa, Evelio Rodriguez, Kevin J Koomalsingh, Takashi Shuto, David C Shin, Yoav Dori, Andrew C Glatz, Jonathan J Rome, Robert C Gorman, Joseph H Gorman, Matthew J Gillespie
BACKGROUND: Transannular patch (TAP) repair of tetralogy of Fallot often results in significant right ventricular outflow tract (RVOT) dilation and distortion. We hypothesized that insertion of Melody valves into the proximal right and left branch pulmonary arteries (PAs) would reduce pulmonary regurgitation fraction (PRF) in an ovine model of pulmonary insufficiency and dilated RVOT. METHODS AND RESULTS: Ten sheep underwent baseline cardiac catheterization, surgical pulmonary valvectomy, and TAP placement...
February 1, 2011: Circulation. Cardiovascular Interventions
Rajnish Garg, Keshava Murthy, Shekhar Rao, Colin John
Branch pulmonary artery obstruction is one of the prime reasons for re-operation in patients who have undergone repair for tetralogy of Fallot. Branch pulmonary artery obstruction may develop over a period of time due to dilation of right ventricular outflow tract or it may be caused by residual stenosis after inadequate repair. This may lead to differential lung perfusion causing morbidity. Intra-operative capnogram monitoring reveals ventilation-perfusion relationship. We report two cases where the capnogram helped the diagnosis and management of branch pulmonary artery obstruction...
January 2011: Annals of Cardiac Anaesthesia
Pedro Curi-Curi, Samuel Ramírez, Luis Muñoz, Juan Calderon-Colmenero, Antonio Razo, Jorge Cervantes-Salazar
OBJECTIVE: The aim of this report is to describe a clinical case of an anomalous origin of the left pulmonary artery branch from the ascending aorta, and to present a current literature review of this rare disease. CLINICAL CASE: A 2 year-old infant was referred to our institution for surgical correction of sub aortic obstruction. The non invasive investigation disclosed a right aortic arch anatomy with left ventricle outflow tract obstruction due to sub aortic membrane associated but failed to show the anomalous origin of the left pulmonary artery branch from the ascending aorta...
July 2010: Archivos de Cardiología de México
Aphrodite Tzifa, Gabriele A Krombach, Nils Krämer, Sascha Krüger, Adrian Schütte, Matthias von Walter, Tobias Schaeffter, Shakeel Qureshi, Thomas Krasemann, Eric Rosenthal, Claudia A Schwartz, Gopal Varma, Alexandra Buhl, Antonia Kohlmeier, Arno Bücker, Rolf W Günther, Reza Razavi
BACKGROUND: Percutaneous cardiac interventions are currently performed under x-ray guidance. Magnetic resonance imaging (MRI) has been used to guide intravascular interventions in the past, but mainly in animals. Translation of MR-guided interventions into humans has been limited by the lack of MR-compatible and safe equipment, such as MR guide wires with mechanical characteristics similar to standard guide wires. The aim of the present study was to evaluate the safety and efficacy of a newly developed MR-safe and compatible passive guide wire in aiding MR-guided cardiac interventions in a swine model and describe the 2 first-in-man solely MR-guided interventions...
December 2010: Circulation. Cardiovascular Interventions
W Lu, D Guo, J Miao, C Liu, S Hu, W Liu, H Jiao
BACKGROUND: To study digital subtraction angiography ( DSA) features of pulmonary hypoperfusion in lung cancer with cancerous invasion of central pulmonary artery ( CICPA) . METHODS: Twenty-six cases of lung cancer combined with CICPA underwent pulmonary DSA. The DSA features of pulmonary hypoperfusion, including pulmonary vessel signs and lung parenchyma signs, were observed, and the time-density curve( TDC) of both abnormal sides and the coordinate normal sides was drawn and analyzed...
August 20, 2001: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
Alessandro Giardini, Sachin Khambadkone, Andrew Taylor, Graham Derrick
Patients with anatomic repair of transposition of the great arteries (TGA) can present with branch pulmonary artery (PA) stenosis; however, its relation to an abnormal cardiopulmonary response to exercise is unknown. We investigated the relation between the PA anatomy and pulmonary blood flow (PBF) distribution and the cardiopulmonary response to exercise in patients with anatomic repair of TGA. We used cardiopulmonary exercise testing and magnetic resonance imaging to study 55 consecutive patients (62% male; age 14...
October 1, 2010: American Journal of Cardiology
Michael J Angtuaco, Ritu Sachdeva, Robert D B Jaquiss, W Robert Morrow, Jeffrey M Gossett, Eudice Fontenot, Paul M Seib
OBJECTIVE: Our objective was to examine long-term outcomes of intraoperative pulmonary artery stents and determine risk factors for reintervention BACKGROUND: Short-term outcomes of intraoperative pulmonary artery stents have been reported previously. However, long-term results are unknown. METHODS: We conducted a retrospective review of patients who underwent intraoperative pulmonary artery stent placement for branch pulmonary artery stenosis...
February 15, 2011: Catheterization and Cardiovascular Interventions
Maximilian de Bucourt, Patrick A Hein, Patrik Rogalla
No abstract text is available yet for this article.
September 14, 2010: Journal of the American College of Cardiology
Hiroyuki Amano, Nobuhiro Tanabe, Seiichiro Sakao, Hideo Umekita, Toshihiko Sugiura, Satoru Kitazono, Miyako Kitazono, Fuminobu Kuroda, Yasunori Kasahara, Koichiro Tatsumi
Selective right pulmonary arteriography and 3-dimensional computed tomography revealed multiple severe stenoses of the peripheral pulmonary artery associated with poststenotic aneurysms in a 65-year-old woman. She was referred to the hospital for evaluation of dry cough, gradually increasing dyspnea and multiple nodular shadows on a chest radiograph. Echocardiography and cardiac catheterization showed severe pulmonary hypertension, though other structural heart diseases or well-characterized congenital syndromes were ruled out...
2010: Internal Medicine
Michael Funk, Michael Cohen, Orlando Santana
Alagille syndrome is a rare genetic disorder that results in intrahepatic cholestasis. Cardiac involvement mainly involves stenosis of branches of the pulmonary arteries. Aortic valve involvement is less common. To our knowledge, this is the first case of Alagille syndrome associated with severe aortic stenosis due to a bicuspid aortic valve.
October 2010: Southern Medical Journal
George M Alfieris, James J Gangemi, Mathew P Schiralli, Michael F Swartz, Jill M Cholette
Neonatal surgical repair for truncus arteriosus historically involves removing the pulmonary arteries from the truncal root, closing the ventricular septal defect, and creating right ventricular to pulmonary artery continuity. Unfortunately, early reintervention is frequently required for conduit failure and proximal branch pulmonary artery stenosis. We present a technique that preserves the pulmonary artery architecture, keeping the pulmonary arteries in their native position. This technique has been applied to 16 patients and appears to decrease proximal branch pulmonary artery stenosis, thereby extending conduit longevity and increasing the freedom from early reintervention...
September 2010: Annals of Thoracic Surgery
Pramod Reddy Kandakure, Anil Kumar Dharmapuram, Nagarajan Ramadoss, Vivek Babu, Ivatury Mrityunjaya Rao, Kona Samba Murthy
Central aorta-pulmonary artery shunts have fallen into disfavor because of shunt thrombosis and congestive heart failure, and a modified Blalock-Taussig shunt via thoracotomy can lead to pulmonary artery hypoplasia and distortion. We reviewed the outcomes of a modified Blalock-Taussig shunt by a sternotomy approach in 20 infants from July 2007 to October 2009. Their mean age was 5.79 months, and median weight was 5.4 kg. A 4-mm graft was placed in 11 patients, a 5-mm graft in 8, and a 3.5-mm graft in 1. There was no incidence of sepsis, seroma, or phrenic nerve palsy...
August 2010: Asian Cardiovascular & Thoracic Annals
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