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https://www.readbyqxmd.com/read/29226900/diffuse-hypoplasia-of-the-aortic-arch-and-isthmus-in-a-patient-with-williams-syndrome
#1
İsmihan Selen Onan, Erkut Öztürk, Aylin Demirel Başgöze, Ayse Çicek, Burak Onan
Williams syndrome is a rare neurodevelopmental disorder characterized by mental retardation, growth deficiency, hypercalcemia, cardiac defects, and a distinctive facial appearance. Cardiovascular abnormalities are present in approximately 80% of Williams syndrome patients. Surgical treatment is generally performed for supravalvular aortic stenosis, aortic coarctation, pulmonary artery stenosis, or ventricular septal defect. In rare cases, diffuse hypoplasia of the aortic arch with a normal left ventricular outflow tract and ascending aorta may be diagnosed in early childhood...
December 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29226891/the-relationship-between-right-ventricular-outflow-tract-fractional-shortening-and-pulmonary-embolism-severity-index-in-acute-pulmonary-embolism
#2
Ekrem Şahan, Murat Karamanlıoğlu, Suzan Şahan, Murat Gül, Ahmet Korkmaz, Omaç Tüfekçioğlu
OBJECTIVE: Right ventricular (RV) functions are clinically important in acute pulmonary embolism (APE). Measurement of systolic function of the right ventricular outflow tract (RVOT) with echocardiography is a simple method to evaluate RV function. The aim of this study was to determine the relationship between RVOT systolic function and the Pulmonary Embolism Severity Index (PESI). METHODS: A total of 151 patients diagnosed with APE by pulmonary computed tomography angiography or ventilation/perfusion scintigraphy were included...
December 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29226623/distortion-of-kb-estimates-of-endothelin-1-eta-and-etb-receptor-antagonists-in-pulmonary-arteries-possible-role-of-an-endothelin-1-clearance-mechanism
#3
James A Angus, Richard J A Hughes, Christine E Wright
Dual endothelin ETA and ETB receptor antagonists are approved therapy for pulmonary artery hypertension (PAH). We hypothesized that ETB receptor-mediated clearance of endothelin-1 at specific vascular sites may compromise this targeted therapy. Concentration-response curves (CRC) to endothelin-1 or the ETB agonist sarafotoxin S6c were constructed, with endothelin receptor antagonists, in various rat and mouse isolated arteries using wire myography or in rat isolated trachea. In rat small mesenteric arteries, bosentan displaced endothelin-1 CRC competitively indicative of ETA receptor antagonism...
December 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/29226460/ct-pulmonary-angiogram-for-assessing-the-treatment-outcome-of-acute-pulmonary-embolism
#4
Hai-Ting Zhou, Wen-Ying Yan, De-Li Zhao, Hong-Wei Liang, Guo-Kun Wang, Zai-Sheng Ling, Jin-Ling Zhang
OBJECTIVE: To discuss the value of CT pulmonary angiogram (CTPA) for assessing the treatment outcome of acute pulmonary embolism (APE). MATERIALS AND METHODS: CT pulmonary angiogram data and other clinical data were collected for 28 cases diagnosed as APE and analyzed retrospectively. The number and positions of emboli in the pulmonary artery, pulmonary artery obstruction index, right ventricular/left ventricular diameter ratio, main pulmonary artery/ascending aorta diameter ratio and blood oxygen saturation, and pulmonary arterial pressure were compared before and after treatment...
December 11, 2017: Echocardiography
https://www.readbyqxmd.com/read/29226357/atrial-deformation-correlated-with-functional-capacity-in-mitral-stenosis-patients
#5
Chen-Yu Chien, Chih-Wei Chen, Tin-Kwang Lin, Yu Lin, Jnnu-Wen Lin, Yi-Da Li, Chi-Hsien Chen, Wei-Chuan Tsai
BACKGROUND: Left atrial (LA) dysfunction, expressed as impaired LA deformation using two-dimensional (2D) strain imaging, has been observed in association with rheumatic mitral stenosis (MS). However, the clinical role of speckle tracking echocardiography (STE)-derived LA strain has rarely been studied in MS. AIM: This study aimed to identify the determinants of New York Heart Association (NYHA) functional class in patients with mitral stenosis and to investigate the relationship between left atrial deformation as measured by two-dimensional STE-derived LA strain and heart failure symptoms...
December 11, 2017: Echocardiography
https://www.readbyqxmd.com/read/29226075/prediction-of-target-genes-for-mir-140-5p-in-pulmonary-arterial-hypertension-using-bioinformatics-methods
#6
Fangwei Li, Wenhua Shi, Yixin Wan, Qingting Wang, Wei Feng, Xin Yan, Jian Wang, Limin Chai, Qianqian Zhang, Manxiang Li
The expression of microRNA (miR)-140-5p is known to be reduced in both pulmonary arterial hypertension (PAH) patients and monocrotaline-induced PAH models in rat. Identification of target genes for miR-140-5p with bioinformatics analysis may reveal new pathways and connections in PAH. This study aimed to explore downstream target genes and relevant signaling pathways regulated by miR-140-5p to provide theoretical evidences for further researches on role of miR-140-5p in PAH. Multiple downstream target genes and upstream transcription factors (TFs) of miR-140-5p were predicted in the analysis...
December 2017: FEBS Open Bio
https://www.readbyqxmd.com/read/29225741/what-is-the-proper-ventilation-strategy-during-laparoscopic-surgery
#7
REVIEW
Youn Yi Jo, Hyun-Jeong Kwak
The main stream of intraabdominal surgery has changed from laparotomy to laparoscopy, but anesthetic care for laparoscopic surgery is challenging for clinicians, because pneumoperitoneum might aggravate respiratory mechanics and arterial oxygenation. The authors reviewed the literature regarding ventilation strategies that reduce deleterious pulmonary physiologic changes during pneumoperitoneum for laparoscopic surgery under general anesthesia and make appropriate recommendations.
December 2017: Korean Journal of Anesthesiology
https://www.readbyqxmd.com/read/29224761/direct-tracheobronchopexy-via-left-lateral-thoracotomy-for-severe-tracheobronchomalacia
#8
Evan J Propst, Faisal Zawawi, Roxanne E Kirsch, Osami Honjo
An infant with pulmonary atresia/ventricular septal defect/major aortopulmonary collateral arteries underwent unifocalization, ventriculoseptal defect closure and placement of a right ventricle to pulmonary artery conduit via median sternotomy. Aortopexy and pulmonary arteriopexy via redo sternotomy were insufficient to allow weaning of continuous positive airway pressure and he required direct tracheobronchopexy via left lateral thoracotomy to alleviate posterior trachealis intrusion along the length of the trachea and left main bronchus...
December 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29224304/-method-for-recording-tension-changes-of-small-pulmonary-artery-and-vein-using-the-isolated-vessel-tension-measurement-system
#9
X T Wu, M D Kuang, X Ouyang, Y Li, M M Yuan, W J Lu, J Wang, Y Q Chen
Objective: To establish a standardized method for isolated pulmonary artery and vein rings with different diameter, pressure and length, which could provide a more scientific method for in vitro study of pulmonary vessel diseases. Methods: Male SD rats were anesthetized, and the right ventricular systolic pressure were measured. Small pulmonary artery and vein rings with 200-400 μm in diameter and 2 mm in length were prepared by dissecting pulmonary arteries and veins. The pulmonary vessel rings were mounted in the organ bath by 2 stainless steel wires with diameter of 40 μm...
December 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/29224269/-surgical-treatment-and-early-mid-follow-up-results-of-complete-atrioventricular-septal
#10
H J Cui, J Zhuang, J M Chen, J Z Cen, G Xu, S S Wen
Objective: To discuss the surgical treatment and early-mid follow-up results of complete atrioventricular septal defect (CAVSD). Methods: The clinic data of 235 cases of CAVSD underwent surgical treatment at Department of Cardiac Surgery, Guangdong General Hospital from June 2009 to June 2016 was analyzed retrospectively (104 male and 131 female patients). The patients were aged 18 days to 58 years (mid age 8.9 months) at surgery, and 2 cases of newborns (0.9%), 24 cases of 1 to 3 months (10.2%), 56 cases of 4 to 6 months (23...
December 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29224263/-strategies-for-the-prevention-and-control-of-bleeding-due-to-vascular-injury-in-thoracoscopic-lung-surgery
#11
J D Mei, Q Pu, L Ma, C W Liu, L X Liu
The technique of thoracoscopic lung surgery has gradually matured. Nowadays, thoracoscope is recommended as the most preferred approach for surgical treatment of early stage non-small cell lung cancer in different guidelines. However, there are still some cases of accidential major bleeding due to vascular injury during thoracoscopic lung surgery. The wall of the hilum vessels is relatively thin. These vessels often involve a great portion of the cardiac output blood flow. Once the injury happened, the emergent condition may be life-threatening due to massive blood loss...
December 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29224257/models-of-care-for-non-invasive-ventilation-in-the-acute-copd-comparison-of-three-tertiary-hospitals-act3-study
#12
Kerry Parker, Vara Perikala, Ali Aminazad, Zheng Deng, Brigitte Borg, Catherine Buchan, Jo Toghill, Louis B Irving, Jeremy Goldin, David Charlesworth, Ajay Mahal, Suhith Illesinghe, Matthew T Naughton, Alan Young
BACKGROUND AND OBJECTIVE: Non-invasive ventilation (NIV) improves clinical outcomes in hypercapnic acute exacerbations of COPD (AECOPD), but the optimal model of care remains unknown. METHODS: We conducted a prospective observational non-inferiority study comparing three models of NIV care: general ward (Ward) (1:4 nurse to patient ratio, thrice weekly consultant ward round), a high dependency unit (HDU) (1:2 ratio, twice daily ward round) and an intensive care unit (ICU) (1:1 ratio, twice daily ward round) model in three similar teaching tertiary hospitals...
December 10, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29224002/the-protective-effects-of-%C3%AE-opioid-receptor-stimulation-in-hypoxic-pulmonary-hypertension-involve-inhibition-of-autophagy-through-the-ampk-mtor-pathway
#13
Yaguang Zhou, Yuanbo Wang, Xu Wang, Xin Tian, Shumiao Zhang, Fan Yang, Haitao Guo, Rong Fan, Na Feng, Min Jia, Xiaoming Gu, Yuemin Wang, Juan Li, Jianming Pei
BACKGROUND/AIMS: In a previous study, we showed that κ-opioid receptor stimulation with the selective agonist U50,488H ameliorated hypoxic pulmonary hypertension (HPH). However, the roles that pulmonary arterial smooth muscle cell (PASMC) proliferation, apoptosis, and autophagy play in κ-opioid receptor-mediated protection against HPH are still unknown. The goal of the present study was to investigate the role of autophagy in U50,488H-induced HPH protection and the underlying mechanisms...
December 8, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29223846/clinical-features-and-surgical-outcomes-of-pulmonary-artery-sarcoma
#14
Kanhua Yin, Zhiqi Zhang, Rongkui Luo, Yuan Ji, Difan Zheng, Yi Lin, Chunsheng Wang
OBJECTIVE: Pulmonary artery sarcoma is an exceedingly rare malignancy. There is a lack of consensus regarding its diagnosis and treatment. We reviewed our experience in the surgical management of pulmonary artery sarcoma over an 11-year period. METHODS: From January 2005 to February 2016, 12 patients with pulmonary artery sarcoma (age 51 ± 14 years, 5 male) underwent surgical treatment at our center. Nine patients (75%) exhibited pulmonary trunk involvement on computed tomography angiography...
November 10, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29223842/interstage-evaluation-of-homograft-valved-right-ventricle-to-pulmonary-artery-conduits-for-palliation-of-hypoplastic-left-heart-syndrome
#15
Nefthi Sandeep, Rajesh Punn, Sowmya Balasubramanian, Shea N Smith, Olaf Reinhartz, Yulin Zhang, Gail E Wright, Lynn F Peng, Lisa Wise-Faberowski, Frank L Hanley, Doff B McElhinney
OBJECTIVE: Palliation of hypoplastic left heart syndrome with a standard nonvalved right ventricle to pulmonary artery conduit results in an inefficient circulation in part due to diastolic regurgitation. A composite right ventricle pulmonary artery conduit with a homograft valve has a hypothetical advantage of reducing regurgitation, but may differ in the propensity for stenosis because of valve remodeling. METHODS: This retrospective cohort study included 130 patients with hypoplastic left heart syndrome who underwent a modified stage 1 procedure with a right ventricle to pulmonary artery conduit from 2002 to 2015...
November 8, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29223748/is-tricuspid-annuloplasty-increasing-surgical-mortality-and-morbidity-during-mitral-valve-replacement-a-single-centre-experience
#16
Constance Verdonk, Arthur Darmon, Claire Cimadevilla, Laurent Lepage, Richard Raffoul, Patrick Nataf, Alec Vahanian, David Messika-Zeitoun
BACKGROUND: Performance of tricuspid annuloplasty (TA) in patients undergoing mitral valve surgery is recommended based on the degree of tricuspid regurgitation and tricuspid annulus size, but is often underused. AIM: To evaluate the impact of combined TA on in-hospital outcome in patients undergoing mitral valve replacement (MVR). METHODS: We selected all consecutive patients who underwent MVR for native valve disease. Clinical, echocardiographic and in-hospital complications were obtained from chart review...
December 6, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/29223470/reveal-risk-scores-applied-to-riociguat-treated-patients-in-patent-2-impact-of-changes-in-risk-score-on-survival
#17
Raymond L Benza, Harrison W Farber, Adaani Frost, Hossein-Ardeschir Ghofrani, Miguel A Gómez-Sánchez, David Langleben, Stephan Rosenkranz, Dennis Busse, Christian Meier, Sylvia Nikkho, Marius M Hoeper
BACKGROUND: The Registry to Evaluate Early and Long-term PAH Disease Management (REVEAL) risk score (RRS) calculator was developed using data derived from the REVEAL registry, and predicts survival in patients with pulmonary arterial hypertension (PAH) based on multiple patient characteristics. Herein we applied the RRS to a pivotal PAH trial database, the 12-week PATENT-1 and open-label PATENT-2 extension studies of riociguat. We examined the effect of riociguat vs placebo on RRS in PATENT-1, and investigated the prognostic implications of change in RRS during PATENT-1 on long-term outcomes in PATENT-2...
November 11, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/29223256/prostacyclin-therapy-for-pulmonary-arterial-hypertension-evolves-again-with-the-development-of-an-implantable-delivery-system
#18
EDITORIAL
Joel A Wirth, Harold I Palevsky
No abstract text is available yet for this article.
December 2017: Chest
https://www.readbyqxmd.com/read/29222289/what-is-the-role-of-screening-for-pulmonary-hypertension-in-adults-and-children-with-sickle-cell-disease
#19
REVIEW
Shaina M Willen, Mark T Gladwin
Patient case: An 18-year-old male patient with homozygous hemoglobin SS disease was evaluated for progressive dyspnea and elevated tricuspid regurgitant jet velocity (TRV) on echocardiography. The patient's case is described in detail in Lancet1 He had been treated with regular transfusions since childhood for stroke, had rare episodes of vaso-occlusive pain episodes, and did not take narcotic pain medications. He presented with progressive severe dyspnea on exertion and lower extremity edema. His laboratory tests were notable for a total hemoglobin level of 11...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/29222288/cardiovascular-complications-in-patients-with-sickle-cell-disease
#20
REVIEW
Mark T Gladwin
Sickle cell disease (SCD) is an autosomal recessive disease in which homozygosity for a single point mutation in the gene encoding the β-globin chain produces hemoglobin S molecules that polymerize within the erythrocyte during deoxygenation; the result is sustained hemolytic anemia and vaso-occlusive events. As patients live to adulthood, the chronic impact of sustained hemolytic anemia and episodic vaso-occlusive episodes leads to progressive end-organ complications. This scenario culminates in the development of 1 or more major cardiovascular complications of SCD for which there are no approved or consensus therapies...
December 8, 2017: Hematology—the Education Program of the American Society of Hematology
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