Right pulmonary artery development after modified Blalock-Taussig shunt (MBTS) in infants with pulmonary atresia, VSD and confluent pulmonary arteries

1989 ◽  
Vol 3 (1) ◽  
pp. 12-15 ◽  
Author(s):  
M COTRUFO ◽  
P ARCIPRETE ◽  
G CAIANIELLO ◽  
O FITTIPALDI ◽  
F DELEVA ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Pulmonary Arteries ◽  
Pulmonary Atresia ◽  
Right Pulmonary Artery ◽  
Blalock Taussig Shunt

scholarly journals Pulmonary atresia with a ventricular septal defect and left pulmonary artery discontinuity: a case report 

2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Hyun-Hwa Cha ◽  
Hae Min Kim ◽  
Won Joon Seong
Keyword(s):  
Pulmonary Artery ◽  
Subclavian Artery ◽  
Septal Defect ◽  
Left Subclavian Artery ◽  
Ductus Arteriosus ◽  
Main Pulmonary Artery ◽  
Pulmonary Arteries ◽  
Pulmonary Atresia ◽  
Left Pulmonary Artery ◽  
Right Pulmonary Artery

Abstract Background Unilateral pulmonary artery discontinuity is a rare malformation that is associated with other intracardiac abnormalities. Cases accompanied by other cardiac abnormalities are often missed on prenatal echocardiography. The prenatal diagnosis of isolated unilateral pulmonary artery discontinuity can also be delayed. However, undiagnosed this malformation would have an effect on further prognosis. We report our case of a prenatal diagnosis of pulmonary atresia with ventricular septal defect and left pulmonary artery discontinuity. Case presentation A 33-year-old Asian woman visited our institution at 24 weeks of gestation because of suspected fetal congenital heart disease. Fetal echocardiography revealed a small atretic main pulmonary artery giving rise to the right pulmonary artery without bifurcation and the left pulmonary artery arising from the ductus arteriosus originating from the left subclavian artery. The neonate was delivered by cesarean section at 376/7 weeks of gestation. Postnatal echocardiography and multidetector computed tomography showed a right aortic arch, with the small right pulmonary artery originating from the atretic main pulmonary artery and the left pulmonary artery originating from the left subclavian artery. Patency of the ductus arteriosus from the left subclavian artery was maintained with prostaglandin E1. Right ventricular outflow tract reconstruction and pulmonary angioplasty with Gore-Tex graft patch was performed 25th day after birth. Unfortunately, the neonate died because of right heart failure 8 days postoperation. Conclusion There is a possibility that both pulmonary arteries do not arise from the same great artery (main pulmonary artery or common arterial trunk). Therefore, clinicians should check the origin of both pulmonary arteries.

Non-confluent pulmonary arteries in a patient with pulmonary atresia and intact ventricular septum: ? a 5th aortic arch with a systemic-to-pulmonary arterial connection

2000 ◽  
Vol 10 (4) ◽  
pp. 419-422 ◽  
Author(s):  
Astolfo Serra ◽  
Francisco Chamie ◽  
R.M. Freedom
Keyword(s):  
Pulmonary Artery ◽  
Aortic Arch ◽  
Pulmonary Arteries ◽  
Pulmonary Atresia ◽  
Left Pulmonary Artery ◽  
Ventricular Septum ◽  
Intact Ventricular Septum ◽  
Right Pulmonary Artery ◽  
Pulmonary Arterial ◽  
The Right

AbstractMajor abnormalities of pulmonary circulation are uncommon in the patient with pulmonary atresia and intact ventricular septum. Non-confluent pulmonary arteries have only rarely been described in this setting. In this case report, we describe a patient in whom the pulmonary arteries are non-confluent, with the right pulmonary artery supplied through a right-sided arterial duct, and the left pulmonary artery most likely through a fifth aortic arch, thus providing a systemic-to-pulmonary arterial connection. We discuss the various forms of non-confluent pulmonary arteries in the setting of pulmonary atresia and intact ventricular septum.

Blood Flow Velocity Profiles in Pulmonary Branch Arteries in Lambs

1995 ◽  
Vol 117 (2) ◽  
pp. 237-241
Author(s):  
H. Katayama ◽  
G. W. Henry ◽  
C. L. Lucas ◽  
B. Ha ◽  
J. I. Ferreiro ◽  
...  
Keyword(s):  
Blood Flow ◽  
Pulmonary Artery ◽  
Pulmonary Arteries ◽  
Maximum Velocity ◽  
Left Pulmonary Artery ◽  
Control Group ◽  
Pulsed Doppler Ultrasound ◽  
Right Pulmonary Artery ◽  
Blood Flow Velocities ◽  
The Right

We studied the detailed profiles of blood flow in the right and left pulmonary arteries using 20 MHz pulsed Doppler ultrasound equipment in a lamb model. Fourteen lambs aged four to six weeks were selected. In six lambs, monocrotaline pyrrole was injected parenterally to create pulmonary hypertension (PH group). Eight other lambs served as unaltered controls (control group). The blood flow velocities were sampled in 1mm increments along the anterior—posterior axis of the branch arteries. The maximum velocity of the forward flow in the left pulmonary artery was higher than that in the right pulmonary artery in the control group (71.7 ± 15.9cm/s vs 60.2 ± 13.5; p < 0.05). The fastest backward flow was located at the posterior position of the vessel in the right pulmonary artery in the control group. No significant bias in location was shown in the left pulmonary artery. Using indices of P90, acceleration time, P90*AcT, the velocity waveforms in the PH group were compared with those in the control group. In the left pulmonary artery, every index in the control group showed a significantly greater value that in the PH group. On the other hand, no significant differences were found between either group in the right pulmonary artery.

scholarly journals Rehabilitation of pulmonary arteries: hybrid treatment in the unilateral absence of the pulmonary artery.

2021 ◽  
Author(s):  
Jorge Cervantes-Salazar ◽  
Jose García-Montes ◽  
Henry Peralta-Santos ◽  
Diego Ortega-Zhindón ◽  
Juan Calderón-Colmenero
Keyword(s):  
Pulmonary Artery ◽  
Respiratory Infections ◽  
Ductus Arteriosus ◽  
Main Pulmonary Artery ◽  
Pulmonary Arteries ◽  
Surgical Reconstruction ◽  
Hybrid Strategy ◽  
Right Pulmonary Artery ◽  
History Of ◽  
Bilateral Ductus Arteriosus

We present two patients with history of recurrent respiratory infections, fatigue and sweating. They were diagnosed with absence of connection between the main pulmonary artery (MPA) and right pulmonary artery (RPA) and bilateral ductus arteriosus, with the RPA originating from the ductus arteriosus. Treatment was approached with a hybrid strategy: percutaneous intraluminal angioplasty with a right intraductal stent and device closure of the left ductus arteriosus and followed by surgical reconstruction with interposition of a graft from RPA to MPA. Both patients had a favorable outcome.

scholarly journals P701 Usefulness of echocardiography in diagnosis and monitoring in patient with pulmonary embolism during pregnancy, a case report

2020 ◽  
Vol 21 (Supplement_1) ◽  
Author(s):  
K Starzyk ◽  
P Dybich ◽  
K Ciuraszkiewicz ◽  
W Rokita ◽  
B Wozakowska-Kaplon
Keyword(s):  
Pulmonary Embolism ◽  
Pulmonary Artery ◽  
Troponin T ◽  
Pulmonary Arteries ◽  
Pulmonary Trunk ◽  
Clinical State ◽  
Main Trunk ◽  
Right Pulmonary Artery ◽  
Low Incidence ◽  
The Right

Abstract Pulmonary embolism is one of the leading causes of maternal mortality despite a low incidence of during pregnancy. We present 32-year-old woman, in the 35 week of first pregnancy, admitted to the Intensive Care Unit with dyspnea, tachycardia, cyanosis. Echocardiography confirmed the presence of embolic material in the main trunk of pulmonary artery, spreading to the right pulmonary artery. D-dimer and troponin T level were elevated, BNP remained within the normal range. The risk in PESI scale was assumed as intermediate high. LMWH therapy was initiated, the patient was constantly monitored. Venous thrombotic disease in lower extremities was excluded by ultrasonography. The treatment was carried out under obstetric supervision. The clinical state gradually improved, the patient was hemodynamically stable. Serial echocardiographic testing, revealed gradual regression of changes in the pulmonary trunk. Normalization of troponins and lowering of BNP levels were observed. The pregnancy was terminated in 39 week, by cesarean section (obstetric indications). The LMWH was continued few days after delivery, as the patient started lactation. She decided to terminate lactation in a first week after delivery so the therapy was switched into rivaroxaban for at least 3 months. Echocardiography after 3 month confirmed lack of changes in pulmonary trunk, the risk of pulmonary hypertension was low. Echocardiography can be a method of choice for confirming and monitoring pulmonary embolism during pregnancy, in a situation of high or intermediate clinical risk and good visualization of changes in pulmonary arteries Abstract P701 Figure. Embolism of pulmonary trunk and RPA

Outcome of the construction of a Blalock–Taussig shunt in adolescents and adults

2005 ◽  
Vol 15 (4) ◽  
pp. 368-372 ◽  
Author(s):  
Aubrey Peries ◽  
Amira A. A. Al-Hay ◽  
Elliot A. Shinebourne
Keyword(s):  
Pulmonary Stenosis ◽  
Pulmonary Arteries ◽  
Pulmonary Atresia ◽  
Symptomatic Improvement ◽  
Cardiac Events ◽  
Volume Load ◽  
Adverse Cardiac Events ◽  
Adolescents And Adults ◽  
Blalock Taussig Shunt

Aims:The purpose of our study was to ascertain the outcome of the construction of a Blalock–Taussig shunt in patients aged 12 years and over.Patients and methods:We identified 21 patients in whom a Blalock–Taussig shunt had been constructed subsequent to the age of 12 years. Of the patients, 9 were female, and their median age was 18.5 years, with a range from 12 to 46 years. All had usual atrial arrangement, and the atrioventricular connections were concordant in 11, with univentricular atrioventricular connection in 10. Pulmonary atresia was present in 8 (38 per cent), and pulmonary stenosis, either valvar or subvalvar, in 13. An interposition graft had been placed between the subclavian and pulmonary arteries in 16 patients, and an end-to-side anastomosis between the arteries in 5.Results:One patient had died in hospital, while 4 patients had died during the period of follow-up after initial construction of the shunt. Long-term follow-up was available in 86 per cent of patients. In the 3 patients lost to follow-up, the shunt had been known to be functioning at periods of 4, 8, and 10 years, respectively. Actuarial freedom from death after a period of 17 years was 76 per cent. In 8 patients, a period of 10 years had elapsed with the shunt patent, and a further 10 had a patent shunt after 5 years follow-up. Symptomatic improvement was reported in 16 (76 per cent) patients, although adverse cardiac events had occurred during follow-up in 17, including congestive heart failure in 3, atrial fibrillation in 3, and endocarditis in 2. In 2 patients, it had been possible to proceed to biventricular repair, one with tetralogy of Fallot, and the other having a Rastelli procedure. Further in 3 patients, it had been possible to construct the Fontan circulation, or one of its variants. One patient has undergone cardiac transplantation, while 2 are awaiting transplantation.Conclusions:Symptomatic improvement can be achieved by construction of a Blalock–Taussig shunt in older subjects, and the risks of surgery are low. Later repair may be feasible in some patients, but adverse cardiac events may follow the increased volume load on the systemic ventricle.

Balloon dilation recanalization of completely occluded modified Blalock-Taussig shunt

1994 ◽  
Vol 4 (2) ◽  
pp. 178-180 ◽  
Author(s):  
Omar Galal ◽  
Shakeel A. Qureshi
Keyword(s):  
Pulmonary Artery ◽  
Cardiac Catheterization ◽  
Doppler Echocardiography ◽  
Guide Wire ◽  
Pulmonary Atresia ◽  
Balloon Dilation ◽  
Shunt Flow ◽  
Angioplasty Balloon ◽  
Blalock Taussig Shunt

SummaryA two-month-old boy, with complex pulmonary atresia, became increasingly cyanosed 10 days after a modified 5 mm right Blalock-Taussig shunt. There was no shunt flow on auscultation or Doppler echocardiography. Despite anticoagulation with heparin, the shunt remained occluded. After demonstration of the occluded shunt at angiography, a guide wire was easily passed through the occlusion and into the pulmonary artery. Balloon dilation was then successfully accomplished with a 6 mm diameter angioplasty balloon resulting in a patent shunt. The shunt was still widely patent at cardiac catheterization six months later.

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