The Experts below are selected from a list of 246 Experts worldwide ranked by ideXlab platform
L. Mohankrishna - One of the best experts on this subject based on the ideXlab platform.
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Prospective angiographic study of the abnormalities of systemic venous connections in congenital and acquired heart disease.
Catheterization and cardiovascular diagnosis, 1996Co-Authors: S. R. Parikh, K. Prasad, R. N. Iyer, N. Desai, L. MohankrishnaAbstract:UNLABELLED Angiographic definition of systemic venous connections was obtained prospectively in 780 consecutive patients with congenital heart disease and 102 patients with acquired valvular heart disease undergoing cardiac catheterization. Attempts were made to enter the innominate vein and perform a balloon occlusion angiogram in each patient. In patients with congenital heart disease, bilateral superior vena cava were present in 32/771 patients (approximately 4%) with Levocardia and 3/9 patients with dextrocardia. Among patients with bilateral superior vena cava (n = 35), an innominate vein of variable size that could be entered was present in six patients. Small tributaries connecting the right and left superior vena cava were found and entered in six patients. The superior vena cava was entered via its connection to morphologic left atrium in five patients and via the coronary sinus in 17 patients. Abnormalities of the inferior vena cava were seen in 7/780 patients. The following abnormalities of the inferior vena cava were noted: azygous continuation of rightsided inferior vena cava in Levocardia -- 3 patients, hemiazygos continuation of the leftsided inferior vena cava in Levocardia -- 1 patient, azygos continuation of the leftsided inferior vena cava in dextrocardia -- 1 patient, interruption of inferior vena cava below the liver with a plexus of veins joining the azygos vein -- 1 patient, and an inferior vena cava draining into the leftward aspect of the common atrium -- 1 patient. Abnormalities of the systemic venous connections were seen in 2/102 patients with acquired heart disease: bilateral superior vena cava in 1 patient and bilateral inferior vena cava in 1 patient. CONCLUSIONS Abnormalities of systemic venous connections were seen in approximately 5% patients with congenital heart disease and approximately 2% patients with acquired heart disease. Small tributaries or an innominate vein of variable size often connect left and right superior vena. Contrast material can be injected into these connections to document the presence of bilateral superior vena cava.
Qichang Zhou - One of the best experts on this subject based on the ideXlab platform.
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prenatal ultrasonic diagnosis of fetal isolated Levocardia
Chinese Journal of Ultrasonography, 2017Co-Authors: Yifan Shi, Shi Zeng, Jia Zhou, Weiyuan Shi, Qichang Zhou, Ming Zhang, Jiawei ZhouAbstract:Objective To investigate the clinical application valve of prenatal ultrasound in diagnosis of fetal isolated Levocardia(IL). Methods Thirty-eight IL fetuses diagnosed in three prenatal diagnosis centers from 2000 to 2016 were reviewed with their prenatal ultrasound features and cardiac and extracardiac malformations. Results Thirty-eight IL cases included 19 cases of left isomerism(LI), 14 cases of right isomerism(RI) and 5 non-classified cases. The overall incidence of malformations in IL patients was 97.4% with 94.7% in LI patients and 100% in RI patients. The incidence of cardiac malformations was 92.1% with 84.2% in LI patients and 100% in RI patients. The most common congenital heart diseases were: right ventricle outlet obstruction, univentricular physiology and atrioventricular septal defect. Anomalous pulmonary venous connection was more commonly seen in LI patients than in RI patients. The most common extracardiac malformation was duodenal obstruction(86.9%). Inferior vena cava interruption and polysplenia were more commonly seen in LI patients.Juxtaposition of aorta and inferior vena cava and asplenia were more commonly seen in RI patients. Conclusions IL is very rarely seen in population with high incidence of congenital heart diseases and extracardiac malformations. Key words: Ultrasonography, prenatal; Isolated Levocardia; Heart defect, congenital; Fetal malformation
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Comparing Levocardia and dextrocardia in fetuses with heterotaxy syndrome: prenatal features, clinical significance and outcomes.
BMC pregnancy and childbirth, 2017Co-Authors: Xiaofang Wang, Yifan Shi, Shi Zeng, Jiawei Zhou, Jia Zhou, Hongxia Yuan, Lin Wang, Weiyuan Shi, Qichang ZhouAbstract:To investigate the differences in cardiovascular disease, extracardiac anomalies and outcomes between fetuses with Levocardia and dextrocardia. Clinical demographics, prenatal features, postnatal characteristics and the outcomes of fetuses with Levocardia or dextrocardia were recorded and analyzed. Sixty-five fetuses with dextrocardia and thirty-eight fetuses with Levocardia were enrolled. Right ventricle outlet obstruction, atrioventricular septal defect and intestinal malrotation were common in both groups. Univentricular physiology, transposition of the great arteries and esophageal atresia were more frequent in fetuses with Levocardia, whereas abnormal pulmonary venous connection, double outlet of right ventricle, left ventricle outlet obstruction and brain abnormalities were more frequent in the dextrocardia group. The accuracy of evaluating cardiac malformations was high, but the sensitivity in assessing extracardiac abnormalities was low. Although the disorders have certain overlapping features, there are several differences between fetuses with Levocardia and dextrocardia. These findings might improve patient counseling and perinatal management.
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Comparing Levocardia and dextrocardia in fetuses with heterotaxy syndrome: prenatal features, clinical significance and outcomes
BMC, 2017Co-Authors: Xiaofang Wang, Yifan Shi, Shi Zeng, Jiawei Zhou, Jia Zhou, Hongxia Yuan, Lin Wang, Weiyuan Shi, Qichang ZhouAbstract:Abstract Background To investigate the differences in cardiovascular disease, extracardiac anomalies and outcomes between fetuses with Levocardia and dextrocardia. Methods Clinical demographics, prenatal features, postnatal characteristics and the outcomes of fetuses with Levocardia or dextrocardia were recorded and analyzed. Results Sixty-five fetuses with dextrocardia and thirty-eight fetuses with Levocardia were enrolled. Right ventricle outlet obstruction, atrioventricular septal defect and intestinal malrotation were common in both groups. Univentricular physiology, transposition of the great arteries and esophageal atresia were more frequent in fetuses with Levocardia, whereas abnormal pulmonary venous connection, double outlet of right ventricle, left ventricle outlet obstruction and brain abnormalities were more frequent in the dextrocardia group. The accuracy of evaluating cardiac malformations was high, but the sensitivity in assessing extracardiac abnormalities was low. Conclusions Although the disorders have certain overlapping features, there are several differences between fetuses with Levocardia and dextrocardia. These findings might improve patient counseling and perinatal management
Sylvia Nelsen - One of the best experts on this subject based on the ideXlab platform.
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An Unusual Case of Levocardia with Situs Inversus
The FASEB Journal, 2019Co-Authors: Cam Walker, Mark H. Hankin, Sylvia NelsenAbstract:Introduction Recently, an unusual case of situs inversus (SI) with Levocardia (left-sided apex of heart) was recognized in a 98-year-old female body donor at Oregon Health & Science University (OHS...
Akira Imamura - One of the best experts on this subject based on the ideXlab platform.
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Left Preureteral Vena Cava (Retrocaval or Circumcaval Ureter) Associated with Partial Situs Inversus
The Journal of urology, 1991Co-Authors: Morihiro Watanabe, Shunzo Kawamura, Teruhiro Nakada, Nobuhisa Ishii, Kazuhiko Hirano, Kazuo Numasawa, Akira ImamuraAbstract:We present a rare case of left preureteral vena cava associated with partial situs inversus. A 68-year-old woman was referred to our clinic for further study of left hydronephrosis on computerized tomography. The abdominal viscera were in mirror image and the heart was Levocardia. The middle portion of the left ureter was dorsal to the left inferior vena cava. The left ureter was reanastomosed ventral to the inferior vena cava. To our knowledge, coexistence of preureteral vena cava and partial situs inversus has not been reported previously in the literature.
S. R. Parikh - One of the best experts on this subject based on the ideXlab platform.
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Prospective angiographic study of the abnormalities of systemic venous connections in congenital and acquired heart disease.
Catheterization and cardiovascular diagnosis, 1996Co-Authors: S. R. Parikh, K. Prasad, R. N. Iyer, N. Desai, L. MohankrishnaAbstract:UNLABELLED Angiographic definition of systemic venous connections was obtained prospectively in 780 consecutive patients with congenital heart disease and 102 patients with acquired valvular heart disease undergoing cardiac catheterization. Attempts were made to enter the innominate vein and perform a balloon occlusion angiogram in each patient. In patients with congenital heart disease, bilateral superior vena cava were present in 32/771 patients (approximately 4%) with Levocardia and 3/9 patients with dextrocardia. Among patients with bilateral superior vena cava (n = 35), an innominate vein of variable size that could be entered was present in six patients. Small tributaries connecting the right and left superior vena cava were found and entered in six patients. The superior vena cava was entered via its connection to morphologic left atrium in five patients and via the coronary sinus in 17 patients. Abnormalities of the inferior vena cava were seen in 7/780 patients. The following abnormalities of the inferior vena cava were noted: azygous continuation of rightsided inferior vena cava in Levocardia -- 3 patients, hemiazygos continuation of the leftsided inferior vena cava in Levocardia -- 1 patient, azygos continuation of the leftsided inferior vena cava in dextrocardia -- 1 patient, interruption of inferior vena cava below the liver with a plexus of veins joining the azygos vein -- 1 patient, and an inferior vena cava draining into the leftward aspect of the common atrium -- 1 patient. Abnormalities of the systemic venous connections were seen in 2/102 patients with acquired heart disease: bilateral superior vena cava in 1 patient and bilateral inferior vena cava in 1 patient. CONCLUSIONS Abnormalities of systemic venous connections were seen in approximately 5% patients with congenital heart disease and approximately 2% patients with acquired heart disease. Small tributaries or an innominate vein of variable size often connect left and right superior vena. Contrast material can be injected into these connections to document the presence of bilateral superior vena cava.