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Topic: Pulmonary vein


  
 Pulmonary Vein Stenosis
BACKGROUND: Progressive stenosis of the pulmonary veins after repair of total anomalous pulmonary venous drainage is frequently refractory to surgical therapy.
In view of the dismal natural history of untreated pulmonary vein stenosis, prompt surgical relief of the stenosis may be a rewarding undertaking.
Over the last 4 years, 6 patients with congenital pulmonary vein stenosis have been treated at our institution, 3 of whom underwent bilateral sequential lung transplantation.
http://www.pediheart.org/searches/topic/pvs.htm   (1259 words)

  
 Venoatrial
Partial anomalous pulmonary venous connection may be of no clinical importance, except when associated with a sinus venosus ASD, in which case it becomes of considerable surgical significance.
Alternatively, through a right atrial approach, a baffle may be placed to direct flow from the entrance of the pulmonary veins into the right superior vena cava through a surgically enlarged intra-atrial communication to the left atrium.
Untreated patients with obstructed total anomalous pulmonary venous return have a high mortality within the first few weeks of life, while those with unobstructed total anomalous pulmonary venous return may survive longer, although suffer from failure to thrive, poor feeding, and recurrent chest infections.
http://www.pediheart.org/practitioners/defects/venoatrial.htm   (4126 words)

  
 uhrad.com - Body Imaging Teaching Files
Pulmonary venous anomalies may be identified with cross-sectional imaging and obviate the need for further studies.
There was a suspicion of a pulmonary embolus and a spiral CT scan of the chest from the aortic arch to the base of the heart was performed (as per the pulmonary embolus protocol) to rule out pulmonary embolus.
One type of anomalous pulmonary vein is easily identified on the chest film.
http://www.uhrad.com/ctarc/ct227.htm   (874 words)

  
 "Sutureless" Pulmonary Vein Stenosis Repair
A sutureless technique for the relief of pulmonary vein stenosis with the use of in situ pericardium.
For patients with PRPVS, the initial approach is through the right atrium and across the atrial septum to allow visualization of the pulmonary vein ostia and clear definition of the location and extent of stenosis.
For patients in whom this technique is to be used at the initial presentation of total anomalous pulmonary venous connection (as pictured below), the initial approach is through the left atrium after retraction of the heart to the right.
http://www.ctsnet.org/sections/clinicalresources/congenital/expert_tech-3.html   (1299 words)

  
 THE MERCK MANUAL, Sec. 6, Ch. 72, Pulmonary Embolism
If pulmonary vascular resistance increases acutely to the extent that the right ventricle cannot generate sufficient pressure to maintain cardiac output, hypotension develops and central venous and right atrial mean pressures increase.
Without infarction, the chest x-ray may be normal, or diminished pulmonary vascular markings in the embolized area may be noted.
Pulmonary hypertension, if severe, may cause dull substernal chest discomfort due to pulmonary artery distention or possibly myocardial ischemia.
http://www.merck.com/pubs/mmanual/section6/chapter72/72a.htm   (4570 words)

  
 Atrial Fibrillation - PVA(PVI)
Current Pulmonary Vein Ablation techniques are achieving success rates of 85% in curing Paroxysmal A-Fib with low risk.
Pulmonary Vein Ablation (Isolation) is currently the best technique available for curing A-Fib.
Another procedure for isolating A-Fib signals is called "Anatomically Based Circumferential Pulmonary Vein Ablation" by Dr. Carlo Pappone of Milan, Italy who first developed this technique
http://www.a-fib.com/PVA(PVI).htm   (864 words)

  
 Repair of Congenital and Acquired Pulmonary Vein Stenosis -- van Son et al. 60 (1): 144 -- The Annals of Thoracic ...
pulmonary vein stenosis, prompt surgical relief of the stenosis
A sutureless technique for the relief of pulmonary vein stenosis withthe use of in situ pericardium
Pathological Effects of Extensive Radiofrequency Energy Applications in the Pulmonary Veins in Dogs
http://ats.ctsnetjournals.org/cgi/content/abstract/60/1/144   (664 words)

  
 Pulmonary Thromboendarterectomy -- Madani and Jamieson 2 (2003): 1205 -- Cardiac Surgery in the Adult
FIGURE 50-5 Chest radiograph of a patient with chronic thromboembolic pulmonary disease and evidence of pulmonary hypertension.
is the only effective therapy for patients with pulmonary hypertension
pulmonary artery vent is placed in the midline of the main pulmonary
http://cardiacsurgery.ctsnetbooks.org/cgi/content/full/2/2003/1205?ck=nck   (9221 words)

  
 Pulmonary artery - Wikipedia, the free encyclopedia
Pulmonary hypertension occurs alone and as a consequence of a number of lung diseases.
Diagram of the alveoli with both cross-section and external view.
It can be a consequence of heart disease (Eisenmenger's syndrome) but equally a cause (right-ventricular heart failure); it also occurs as a consequence of pulmonary embolism and scleroderma.
http://en.wikipedia.org/wiki/Pulmonary_artery   (380 words)

  
 eMedicine - Pulmonary Embolism : Article by Craig Feied, MD, FACEP, FAAEM, FACPh
Although experience with the technique is limited, one study reported the complete recovery of 7 of 9 patients when cardiopulmonary bypass was used to stabilize the patients for operative embolectomy.
Feied CF: Pulmonary chest pain, cor pulmonale and pulmonary embolism.
If emergency cardiopulmonary bypass is not available, several case reports suggest that immediate bilateral thoracotomy and massage of the pulmonary vessels may dislodge a saddle embolus and restore circulation to part of the pulmonary vascular tree.
http://www.emedicine.com/EMERG/topic490.htm   (9742 words)

  
 Pulmonary vein thrombosis after bilobectomy and development of collateral circulation -- Genta et al. 58 (6): 550 -- ...
pulmonary veins in dogs, adhesions between the chest wall and
Figure 1 Chest radiograph obtained on the first postoperative day showing an infiltrate in the lower half of the right upper lobe.
clinical observation alone chosen with no signs of pulmonary
http://thorax.bmjjournals.com/cgi/content/full/58/6/550   (802 words)

  
 Atrial Fibrillation: Multi-Detector Row CT of Pulmonary Vein Anatomy prior to Radiofrequency Catheter Ablation--Initial ...
Atrial electroanatomic remodeling after circumferential radiofrequency pulmonary vein ablation: efficacy of an anatomic approach in a large cohort of patients with atrial fibrillation.
were those of left pulmonary veins (in the study patient group, 0.91
CT and MR imaging, may allow more precise visualization of anatomy
http://radiology.rsnajnls.org/cgi/content/full/234/3/702   (4670 words)

  
 Conventional and sutureless techniques for management of the pulmonary veins: Evolution of indications from postrepair ...
pulmonary vein stenosis, as well as our extension of the technique
A hybrid approach to stabilization and repair of obstructed total anomalous pulmonary venous connection in a critically ill newborn infant
extension of the technique to the primary repair of pulmonary
http://jtcs.ctsnetjournals.org/cgi/content/abstract/129/1/167   (492 words)

  
 Partial Pressure of Oxygen Is Lower in the Left Upper Pulmonary Vein Than in the Right in Adults With Atrial Septal ...
5% dextrose in water from peripheral veins, is the most sensitive method
This is based on the assumption that the oxygen contents in
on the assumption that both the right and left pulmonary flows
http://www.chestjournal.org/cgi/content/full/115/3/679   (2101 words)

  
 Pulmonary vein ablation for idiopathic atrial fibrillation: six month outcome of first procedure in 100 consecutive ...
Pulmonary vein ablation for idiopathic atrial fibrillation: six month outcome of first procedure in 100 consecutive patients -- Bourke et al.
Pulmonary vein ablation for idiopathic atrial fibrillation: six month outcome of first procedure in 100 consecutive patients
Conclusions: In selected patients with drug resistant AF, focal
http://heart.bmjjournals.com/cgi/content/abstract/91/1/51   (462 words)

  
 GASNet Anesthesiology: Transesophageal Pulsed-Doppler Evaluation of Pulmonary Vein Flow
Klein A, Tajik J. Doppler assessment of pulmonary venous flow in helathy subjects and in patients with heart disease.
Kuccherer H, Muhiudeen I, Kusumoto F, et al: Estimation of mean left atrial pressure from transesophageal pulsed Doppler echocardiography of pulmonary venous flow.
Schiavone W, Capafore P, Currie P, Lytle B. Doppler echocardiographic demonstration of pulmonary venous flow velocity in three patients with constrictive pericarditis before and after pericardiectomy.
http://gasnet.med.yale.edu/echomanual/html/pulsed_doppler.html   (218 words)

  
 Congenital Unilateral Pulmonary Vein Atresia: Radiologic Findings in Three Adult Patients -- Heyneman et al. 177 (3): ...
Posteroanterior chest radiograph shows small right hemithorax and diminutive right pulmonary artery.
The purpose of our study is to describe the radiologic findings
Unilateral pulmonary vein atresia: clinical and radiographic spectrum.
http://www.ajronline.org/cgi/content/full/177/3/681   (1904 words)

  
 Intrastent sonotherapy in pulmonary vein restenosis: a new treatment for a recalcitrant problem -- McMahon et al. 89 ...
and two surgical procedures to treat recurrent pulmonary vein
Intrastent sonotherapy in pulmonary vein restenosis: a new treatment for a recalcitrant problem
Intrastent sonotherapy in pulmonary vein restenosis: a new treatment for a recalcitrant problem -- McMahon et al.
http://heart.bmjjournals.com/cgi/content/full/89/2/e6   (1208 words)

  
 Pulmonary Artery/Vein
When the right ventricular muscles relax, blood starts back up the pulmonary trunk, causing the valve to close to prevent the flow from returning into the ventricular chamber.
As a result, the only exit is through the "pulmonary trunk," which divides to form the right and left "pulmonary arteries." At the base of this trunk is a "pulmonary semilunar valve" that is made up of three leaflets or cusps.
When the muscular wall of the right ventricle contacts, the blood inside the heart chamber is put under more pressure, and the tricuspid valve closes.
http://www.innerbody.com/tutorial2/t12.html   (121 words)

  
 ACC: Pulmonary Vein Isolation Promoted As "Cure" For Atrial Fibrillation
Dr. Marrouche said, "what atrial fibrillation patients want is a cure.
All patients had failed a mean of four antiarrhythmic drugs.
Marchlinski's study compared the outcomes of 32 patients who underwent focal ablation, and 75 patients who underwent pulmonary vein isolation for elimination of pulmonary vein triggers.
http://www.docguide.com/dg.nsf/PrintPrint/48429B6FD883241385256B8200735B5A   (636 words)

  
 Unusual Pulmonary Lesions: Case 3. Pulmonary Vein Leiomyosarcoma Presenting as a Left Atrial Mass -- Laroia et al. 20 ...
Chemotherapy and radiation therapy have not been shown to be
The symptoms are usually of recurrent pulmonary emboli,
A 23-year-old man presented to his primary care physician with
http://www.jco.org/cgi/content/full/20/11/2749   (657 words)

  
 Familial Scimitar Syndrome : Three-Dimensional Visualization of Anomalous Pulmonary Vein in Young Sisters -- Ashida et ...
Kinya Ashida, MD Akira Itoh, MD Takahiko Naruko, MD Masato Otsuka, MD Yuji Sakanoue, MD Makoto Kobayashi, MD Hajime Yamashita, MD Michitaka Nagashima, MD Takuro Shinsato, MD Syuichiro Takanashi, MD Yoshihiro Shimizu, MD Kazuo Haze, MD From the Departments of Cardiology and Cardiovascular Surgery (S.T., Y.S.), Osaka City General Hospital, Osaka, Japan.
Pediatric and congenital heart disease, including cardiovascular surgery
On cardiac catheterization, the mean pulmonary artery pressure
http://circ.ahajournals.org/cgi/content/full/103/25/e126   (444 words)

  
 Innohep USA - Deep Vein Thrombosis (DVT)/Pulmonary Embolism (PE) & Cancer
Managing deep vein thrombosis risk in oncology patients.
High Risk of Deep Vein Thrombosis (DVT) in Cancer Patients
The association between cancer and thromboembolism has been recognized for more than 100 years.
http://www.innohepusa.com/corporateweb/innohepus/home.nsf/Content/DVTPECancer   (326 words)

  
 About Pulmonary Vein Stenosis - Pulmonary Vein Stenosis - Clinical Services - Children's Hospital Boston
Pulmonary vein stenosis is a condition in which there is an obstruction (blockage) in the blood vessels that bring oxygen-rich blood from the lungs back to the heart.
This condition may occur as a complicating feature of complex congenital heart disease, but it may also occur in infants with otherwise normal hearts.
The effects of the disease vary in children with co-existing congenital heart defects.
http://www.childrenshospital.org/clinicalservices/Site683/mainpageS683P7.html   (262 words)

  
 Results in
Twelve patients underwent PVS dilatation as well as 22 sequential follow-up examinations.
Study objectives: The functional impact of pulmonary vein (PV) stenosis on pulmonary perfusion after radiofrequency ablation (RFA) for atrial fibrillation (AF) has not been systematically evaluated previously.
PV dilatation was performed using an angioplasty catheter that was 8 to 10 mm in diameter.
http://www.findarticles.com/p/articles/mi_m0984/is_2_126/ai_n6175842   (437 words)

  
 Functional Assessment of Pulmonary Vein Stenosis Using Radionuclide Ventilation/Perfusion Imaging -- Nanthakumar et al. ...
PV stenosis and may be most useful in assessing the hemodynamic
Functional Assessment of Pulmonary Vein Stenosis Using Radionuclide Ventilation/Perfusion Imaging -- Nanthakumar et al.
This article has been cited by other articles:
http://www.chestjournal.org/cgi/content/abstract/126/2/645   (359 words)

  
 HIFU Ablation Catheter
ProRhythm has developed a catheter-based system for the treatment of AF and, in particular, for the electrical isolation of the pulmonary veins in the left atrium.
The catheter uses High Intensity Focused Ultrasound (HIFU) energy that is focused via a reflecting balloon configuration to deliver sufficient energy to achieve ablation in a specific areas of focus.
The HIFU ablation catheter focuses and concentrates ultrasound to create a circumferential, transmural lesion which, when properly located at the ostium (exit) of a pulmonary vein in the left atrium, creates electrical isolation of that vein.
http://www.prorhythm.com/HIFU_ablation_catheter.htm   (215 words)

  
 pulmonary vein - definition of pulmonary vein by the Free Online Dictionary, Thesaurus and Encyclopedia.
This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.
A vein that carries oxygenated blood from the lungs to the left atrium of the heart.
vein, vena, venous blood vessel - a blood vessel that carries blood from the capillaries toward the heart; all veins except the pulmonary carry unaerated blood
http://www.thefreedictionary.com/pulmonary+vein   (202 words)

  
 ProRhythm Inc.
Initial clinical experience with high intensity focused ultrasound balloon catheter for pulmonary vein antrum isolation in patients with atrial fibrillation.
High Intensity Focused Ultrasound for Pulmonary Vein Antrum Isolation – First Clinical Experience with a Novel Steerable Balloon Catheter
Initial Experience with a Novel Focused Ultrasound Ablation System for Ring Ablation Outside the Pulmonary Vein
http://www.prorhythm.com/publications.htm   (288 words)

  
 Pulmonary Vein Stenosis - Clinical Services - Children's Hospital Boston
The Pulmonary Vein Stenosis Program at Children's Hospital Boston provides care to patients diagnosed with pulmonary vein stenosis, a condition that obstructs the flow of oxygen-rich blood from the lungs back to the heart.
The program is staffed by a multidisciplinary team of doctors and nurses with expertise in the fields of cardiology, radiology, pathology and a neuro-oncology.
Pulmonary Vein Stenosis - Clinical Services - Children's Hospital Boston
http://www.childrenshospital.org/clinicalservices/Site683/mainpageS683P0.html   (107 words)

  
 GASNet Anesthesiology: Step 6
Minimal rotation of the TEE probe to the right (patient right) of the right atrial appendage view places the axis of interrogation across the right upper pulmonary vein and the right pulmonary artery.
By “Doppler-friendly” is meant a vein orientation which allows placement of a Doppler beam of interrogation parallel to flow and positioning of the sampling site well within the vein.
Transverse (0 degrees) and vertical plane (90 degrees) imaging of the right upper pulmonary vein commonly fail to provide “Doppler-friendly” images of this structure.
http://gasnet.med.yale.edu/echomanual/html/ob_step_6.html   (123 words)

  
 Hilum and airways
Appears triangular at this level because of the change in course
Anterior and medial to truncus anterior lies RUL vein (the apical-anterior vein)
Superior pulmonary vein tends to be located anteriorly
http://www.meddean.luc.edu/lumen/MedEd/MEDICINE/PULMONAR/ct/hilum.htm   (634 words)

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