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Pulmonary hypertension

Min-Young Kwon, Narae Hwang, Young-Jun Park, Mark A Perrella, Su Wol Chung
Expression of nucleotide-binding oligomerization domain protein 2 (NOD2) is upregulated in pulmonary artery smooth muscle cells (PASMCs) during hypoxia. To investigate the involvement of NOD2 in the pulmonary vascular response to hypoxia, we subjected wild-type and NOD2-deficient mice to chronic normobaric hypoxic conditions. Compared to wild-type mice, NOD2-deficient mice developed severe pulmonary hypertension with exaggerated elevation of right ventricular systolic pressure, profound right ventricular hypertrophy and striking vascular remodeling after exposure to hypoxia...
February 27, 2018: Oncotarget
Cristian R Astorga, Alejandro González-Candia, Alejandro A Candia, Esteban G Figueroa, Daniel Cañas, Germán Ebensperger, Roberto V Reyes, Aníbal J Llanos, Emilio A Herrera
Background: Chronic hypoxia and oxidative stress during gestation lead to pulmonary hypertension of the neonate (PHN), a condition characterized by abnormal pulmonary arterial reactivity and remodeling. Melatonin has strong antioxidant properties and improves pulmonary vascular function. Here, we aimed to study the effects of melatonin on the function and structure of pulmonary arteries from PHN lambs. Methods: Twelve lambs ( Ovis aries ) gestated and born at highlands (3,600 m) were instrumented with systemic and pulmonary catheters...
2018: Frontiers in Physiology
Michele D'Alto, Yoshiki Motoji, Emanuele Romeo, Paola Argiento, Giovanni Maria Di Marco, Agostino Mattera Iacono, Antonello D'Andrea, Gaetano Rea, Paolo Golino, Robert Naeije
AIM: A fluid challenge with rapid saline infusion during right heart catheterization has been shown to be useful for the differential diagnosis between pre- and post-capillary pulmonary hypertension. The aim of this study was to evaluate the prognostic relevance of fluid challenge-induced changes in pulmonary hemodynamics in patients with pulmonary arterial hypertension (PAH). METHODS: Overall, 118 PAH patients (mean age 57 ± 15 years, 80 female) underwent hemodynamic measurements before and after rapid saline infusion (7 mL/kg in 10 min) and were followed up for 19 ± 4 months...
March 7, 2018: International Journal of Cardiology
Zachary R Smith, Bryan Kelly, Rana L Awdish, Sara Hegab
Treprostinil diolamine is the first oral dosage preparation of a prostacyclin analogue for use in treatment naive pulmonary arterial hypertension (PAH). This case series and review of the available literature describes the experience of patients with PAH receiving treprostinil by intravenous (IV), subcutaneous (SQ), or inhalation route who were transitioned to treprostinil diolamine. At our institution, 3 patients were transitioned to treprostinil diolamine who received treprostinil administered by each of the alternative routes: IV, SQ, and inhalation...
January 1, 2018: Journal of Pharmacy Practice
Jes M Sanders, Alexandra B Steverson, Anna E Pawlowski, Daniel Schneider, Chad J Achenbach, Donald M Lloyd-Jones, Matthew J Feinstein
BACKGROUND: Human Immunodeficiency Virus-Infected (HIV+) persons have elevated risks for various manifestations of cardiovascular disease (CVD). No studies to our knowledge have compared atrial fibrillation (AF) and atrial flutter (AFL) prevalence and associated characteristics for HIV+ persons and matched uninfected controls. METHODS AND FINDINGS: Persons with diagnoses of HIV receiving care at a large urban academic medical center were frequency-matched 1:2 on age, sex, race, zip code, and clinic location with uninfected persons...
2018: PloS One
Berardo Sarubbi, Gaetano Rea, Giuseppe Santoro, Enrico Melillo, Giancarlo Scognamiglio, Maria Giovannna Russo
One of the major complications of radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF) is pulmonary vein stenosis (PVS). The natural history of PVS, especially when it involves more than one vein, leads to severe and irreversible pulmonary hypertension with end-stage right heart failure that can require, in extreme cases, even heart-lung transplantation. We report the case of a young patient who underwent RFCA for a single lasting episode of AF and developed PVS years later. He was treated with ballon venoplasty followed by stent implantation in left pulmonary vein because of PVS relief...
March 9, 2018: Monaldi Archives for Chest Disease, Archivio Monaldi Per le Malattie del Torace
Alexandre de Araujo, Augusto Mantovani, Carlos Thadeu Schmidt Cerski, Antonio Barros Lopes, Luiza Cristina Bortoncello, Marcelo Basso Gazzana, Hugo Cheinquer
A 41-year-old woman diagnosed with idiopathic pulmonary hypertension presented symptoms despite the use of vasodilators, requiring treatment with bosentan. Previously, the patient had no signs of autoimmunity and had normal liver function. After three years of bosentan use, aminotransferase levels increased, without improvement after bosentan suspension, leading to complementary investigation. The diagnosis of autoimmune hepatitis was confirmed by biopsy, already in the stage of cirrhosis. In conclusion, in case of aminotransferase levels that remain persistently elevated, despite the reduction in doses and/or suspension of bosentan, autoimmune hepatitis must be investigated and treated urgently due to possibly rapid progression to cirrhosis...
March 2018: Journal of Gastrointestinal and Liver Diseases: JGLD
Rushi V Parikh, Jack Boyd, David P Lee, Ronald Witteles
Methamphetamine abuse is an increasingly prevalent cause of pulmonary artery hypertension in the United States. Conversely, an atrial septal defect rarely presents late as pulmonary artery hypertension. We present the case of a 44-year-old methamphetamine abuser who had a 3-month history of worsening fatigue and near-syncope. She had elevated cardiac enzyme levels and right-sided heart strain. Angiographic findings suggested methamphetamine-induced pulmonary artery hypertension; however, we later heard S2 irregularities that raised suspicion of an atrial septal defect...
February 2018: Texas Heart Institute Journal
Qian Zhang, Le Wang, Hongbing Zeng, Yongman Lv, Yi Huang
BACKGROUND: Pulmonary hypertension (PH) is a rare disease often associated with high mortality and is recently recognized as a common complication secondary to chronic kidney disease (CKD). Epidemiological data for this disorder across the spectrum of CKD is poorly understood. METHODS: We retrospectively analyzed 705 CKD patients with complete clinical records from July 2013 to September 2015. All the patients were estimated by echocardiography and PH was defined as pulmonary artery systolic pressure (PASP) > 35 mmHg...
March 20, 2018: BMC Nephrology
Ketul R Chaudhary, Duncan J Stewart
No abstract text is available yet for this article.
March 15, 2018: Cardiovascular Research
Mingjie Zhang, Zhiyu Feng, Rui Huang, Chongrui Sun, Zhuoming Xu
BACKGROUND Establishing a shunt-induced pulmonary arterial hypertension (PAH) model in mice would be of great scientific value, but no such models have been reported to date. Here, we established a shunt-associated PAH in mice to investigate the characteristics of pulmonary vascular remodeling, which provides a new platform for the in-depth study of PAH associated with congenital heart disease (CHD). MATERIAL AND METHODS Eighty mice were randomly divided into the heavy shunt group (n=32), the small shunt group (n=32), the sham operation group (n=8), and the control group (n=8)...
March 19, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Naoki Masaki, Yuriko Saiki, Masato Endo, Kay Maeda, Osamu Adachi, Masatoshi Akiyama, Shunsuke Kawamoto, Yoshikatsu Saiki
BACKGROUND: Pulmonary hypertension (PH) is more progressive in trisomy 21 patients. However, pulmonary arteriopathic lesions in these patients have not been fully characterized histopathologically.Methods and Results:A retrospective review of a lung biopsy registry identified 282 patients: 188 patients with trisomy 21 (Group D) and 94 without (Group N). The mean age at lung biopsy was 3 and 7 months (P<0.0001). Pulmonary arterial pressure (PAP) and pulmonary vascular resistance were similar between the 2 groups...
March 16, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
Susanne Korff, Patricia Enders-Gier, Lorenz Uhlmann, Matthias Aurich, Sebastian Greiner, Kristof Hirschberg, Hugo A Katus, Derliz Mereles
Pulmonary hypertension is a marker of disease severity. Exercise Doppler echocardiography (EDE) has proven to be feasible and reliable to assess pulmonary pressure. Increase in systolic pulmonary artery pressure (sPAP) has diagnostic and prognostic value in controlled studies. However, its value when assessed during routine examination in patients with cardiopulmonary diseases and resting sPAP > 35 mmHg is not clearly defined. Clinical documentation and offline reevaluation of digitally stored EDE examinations of patients with appropriate clinical indications for EDE were analyzed...
March 19, 2018: International Journal of Cardiovascular Imaging
Jochen Steppan, Natalia Diaz-Rodriguez, Viachaslau M Barodka, Daniel Nyhan, Erica Pullins, Traci Housten, Rachel L Damico, Stephen C Mathai, Paul M Hassoun, Dan E Berkowitz, Bryan G Maxwell, Todd M Kolb
Morbidity and mortality risk increase considerably for patients with pulmonary hypertension (PH) undergoing non-cardiac surgery. Unfortunately, there are no comprehensive, evidence-based guidelines for perioperative evaluation and management of these patients. We present a brief review of the literature on perioperative outcomes for patients with PH and describe the implementation of a collaborative perioperative management program for these high-risk patients at a tertiary academic center.
January 15, 2018: Curēus
Tomonori Watanabe, Shinsuke Miyazaki, Takatsugu Kajiyama, Sadamitsu Ichijo, Takamitsu Takagi, Miyako Igarashi, Hiroaki Nakamura, Hiroshi Taniguchi, Hitoshi Hachiya, Yoshito Iesaka
Persistent iatrogenic atrial septal defects (iASDs) can be observed after intervention requiring a left atria (LA) access, including pulmonary vein isolation (PVI) of atrial fibrillation (AF). We investigated the incidence of iASDs post-second-generation cryoballoon ablation and the pre-procedural predictors. Eighty-three paroxysmal AF patients underwent PVI using second-generation cryoballoons. The LA was accessed with single 15-Fr steerable sheaths following a radiofrequency transseptal puncture, and the iASD was evaluated with transthoracic echocardiography (TTE), a median of 9...
March 17, 2018: Heart and Vessels
Benedetta Vanini, Valentina Grazioli, Antonio Sciortino, Maurizio Pin, Vera N Merli, Anna Celentano, Ilaria Parisi, Catherine Klersy, Lucia Petrucci, Maurizio Salati, Pierluigi Politi, Andrea M D'Armini
BACKGROUND: In this prospective, single-center, observational study, we investigated the association between repeated short periods of circulatory arrest with moderate hypothermia during pulmonary endarterectomy (PEA) in patients with chronic thromboembolic pulmonary hypertension (CTEPH) and different neuropsychological dimensions. METHODS: We examined 70 patients with CTEPH, >18 to 80 years of age, who had been treated with PEA. Neuropsychological testing was performed...
February 19, 2018: Journal of Heart and Lung Transplantation
Douglas A Salguero, Pamela A Barletta, Willaim Sierraalta
BACKGROUND: Multiple myeloma is a hematologic disease with high mortality rates all over the world. The diagnosis has always been challenging since the first case was reported in 1844. For that reason the diagnostic criteria have evolved over years to include the features of the disease more comprehensively. Unusual presentations are infrequent and a diagnostic challenge. For this reason we report this rare case in which diarrhea and abdominal pain were the initial presenting symptoms of multiple myeloma with a plasmacytoma...
March 18, 2018: Journal of Medical Case Reports
Su Mi Kim, Ho Geun Youn, Ji Yeong An, Yoon Young Choi, Sung Hoon Noh, Seung Jong Oh, Tae Sung Sohn, Sung Kim
PURPOSE: The purpose of this study was to estimate surgical outcomes of elderly patients older than 80 years who received laparoscopic or open gastrectomy for gastric cancer and to identify risk factors for postoperative complications. METHODS: Two hundred forty-two elderly patients older than 80 years underwent gastric cancer surgery between January 2010 and December 2016 in three tertiary hospitals. They were divided into two groups: laparoscopic gastrectomy (N = 59) and open gastrectomy (N = 183)...
March 16, 2018: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
Kornelia Johann, Marlen Colleen Reis, Lisbeth Harder, Beate Herrmann, Sogol Gachkar, Jens Mittag, Rebecca Oelkrug
Stimulation of thermogenic pathways appears to be a promising approach to find new ways of tackling metabolic diseases like obesity and diabetes mellitus type 2. Thermogenic, weight reducing and insulin sensitizing effects of phosphodiesterase 5 (PDE 5) inhibitors have recently been postulated, suggesting that modulators of endogenous cGMP signaling have the therapeutic potential to treat metabolic disorders. However, most studies have been performed in vitro or in animals that were not glucose intolerant. We, thus, aimed to test the metabolic effects of the PDE 5 inhibitor sildenafil by treating diet-induced obese (DIO) mice orally for 8 days...
March 13, 2018: Nutrition & Diabetes
Rachael F Grace, Paola Bianchi, Eduard J van Beers, Stefan W Eber, Bertil Glader, Hassan M Yaish, Jenny M Despotovic, Jennifer A Rothman, Mukta Sharma, Melissa M McNaull, Elisa Fermo, Kimberly Lezon-Geyda, D Holmes Morton, Ellis J Neufeld, Satheesh Chonat, Nina Kollmar, Christine M Knoll, Kevin Kuo, Janet L Kwiatkowski, Dagmar Pospíŝilová, Yves D Pastore, Alexis A Thompson, Peter E Newburger, Yaddanapudi Ravindranath, Winfred C Wang, Marcin W Wlodarski, Heng Wang, Susanne Holzhauer, Vicky R Breakey, Joachim Kunz, Sujit Sheth, Melissa J Rose, Heather A Bradeen, Nolan Neu, Dongjing Guo, Hasan Al-Sayegh, Wendy B London, Patrick G Gallagher, Alberto Zanella, Wilma Barcellini
An international, multicenter registry was established to collect retrospective and prospective clinical data on patients with pyruvate kinase (PK) deficiency, the most common glycolytic defect causing congenital non-spherocytic hemolytic anemia. Medical history and laboratory and radiologic data were retrospectively collected at enrollment in 254 patients with molecularly confirmed PK deficiency. Perinatal complications were common, including anemia requiring transfusions, hyperbilirubinemia, hydrops, and prematurity...
March 16, 2018: Blood
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