Objective: To investigate in an animal model of Pulmonary Hypertension (PH) by monocrotaline whether a lower exercise intensity, which has lower potential to provoke dyspnea symptoms, could prevent the increase the right ventricle pressure and the decrease in respiratory compliance.
Setting: A research laboratory. ANIMALS: twenty-one Wistar rats were randomized to the groups: Control (CO; saline solution); PH-sedentary; PH-low and PH-moderate intensity of exercise training (ET).
Interventions: They received a single saline or monocrotaline subcutaneous injection (50 mg/kg). The exercise program was performed during 3-weeks.
Main Outcome Measures: Rats were evaluated by their morphometric and hemodynamic changes and by the respiratory mechanic responses induced by the exercise protocols.
Results: Both protocols of ET significantly (p < 0.05) attenuated the increase in the right ventricular systolic pressure. However, the lower intensity was more effective to prevent the impairment in the respiratory and quasi-static compliance.
Conclusion: Collectively, our results showed for the first time the benefits of ET to the respiratory system mechanics. We also demonstrated that intensity is crucial in PH, probably due to the difficulty to match VO2 capacity and O2 demand during exercise. The improvement in quasi-static compliance not only might improve the ability to breathe, and capture oxygen, but also welfare.
Idiopathic Pulmonary Fibrosis (IPF) is a chronic and progressive disease without treatment that leads to death. Therefore, to control its progression to pulmonary hypertension is still a challenge. Moreover, there is no study that has investigated the Renin-Angiotensin System in patients with IPF.
Objective: Verify the plasma concentrations of Angiotensin I, Angiotensin II (AngII), Angiotensin-(1-7) [Ang- (1-7)] and Alamandine in patients with IPF.
Methods: Ten IPF patients, with or without PH, were included, and ten controls matched by sex and age. Quantitative plasma peptide concentrations (PPC) were expressed as mean and standard deviation or median and interquartile range. The Student Newman-Keuls t test was used for parametric data, Mann-Whitney for nonparametric data and, to compare proportions, the Fisher exact test was performed. The associations between clinical variables and the PPC were evaluated by Pearson or Spearman correlation coefficients. A p ≤ 0.05 was considered statistically significant.
Results: The Alamandine plasma concentration was significantly (365%) lower in the IPF group and positively associated (r = 0.876) with pulmonary artery pressure (PAP). In addition, only in control group, the forced expiratory volume (FEV1%) was positively associated (p = 0.758) with Ang-(1-7).
Conclusion: This study showed, for the first time, that there is a decrease in Alamandine participation in patients with IPF. The ACE-AngII-AT1 axis may be more active in this disease. In addition, our results suggest that Alamandine might be compensating the increase in PAP, as well as the Ang-(1-7) is improving the forced expiratory volume.
Antiphospholipid syndrome may present in various ways from cutaneous manifestation, obstetric complications, neurological manifestation, and cardiac manifestation to renal involvement. There are many cardiac complication of anti-phospholipid syndrome, among them are valvular dysfunction, pulmonary hypertension, myocardial infarction, intracardiac thrombi, and ventricular dysfunction . The most common cardiac manifestation is valvular abnormalities ranging from 11.6-32% [2-5].
Introduction: Pulmonary hypertension (PH) is prevalent in hemodialysis (HD). In the general population, more women than men have PH due to left ventricular (LV) disease with preserved ejection fraction (EF). Little is known about the gender-specific prevalence of PH and associated LV abnormalities in patients with end stage renal disease (ESRD) on HD. Our aim was to evaluate gender differences and LV structural and functional changes in PH among ESRD patients on HD.
Methods: Ninety-four patients (ages 23-77 years) underwent echocardiography after HD. Patients were divided based on estimated pulmonary artery systolic pressure (PASP) (Group A PASP < 40 mm Hg, Group B PASP ≥ 40 mm Hg). LV measurements included LV mass, LV internal dimensions, and LV ejection fraction (EF). LV diastolic function (LVDF) was assessed from mitral inflow deceleration time (DT) and E/A ratio.
Results: Fifty-five patients (59%) had PH, including 32 of 49 men (65%) and 23 of 45 women (51%). LVEF was lower in Group B (46.4 ± 17.6 vs. 62.4 ± 14.4%, p < 0.001). Men with PH had higher LVIDd, cm (5.52 ± 0.89 vs 4.78 ± 0.75, p < 0.001), LVIDs, cm (3.75 ± 0.94 vs 3.14 ± 0.91, p = 0.03) LV mass, g (236 ± 74vs 189 ± 56, p = 0.02) and lower LVEF (40.0 ± 16.7 vs 52.0 ± 15.6, p = 0.008) than women.
Conclusion: Patients on HD have a high prevalence of PH. PH was not associated with clear LV structural changes. There was a depression in LV systolic function without changes in LVDF. PH patients were more often men with hypertrophied LV with depressed LV systolic function.
Background: Macitentan significantly improves pulmonary hemodynamics and survival in patients with primary pulmonary hypertension (PPH). Its beneficial effect, however, may be blunted due to the adverse impacts such as anemia and peripheral edema. Pulmonary arterial hypertension (PAH) is a significant consequence of congenital heart disease (CHD). Its presence and severity are associated with increased morbidity and mortality. We tried to evaluate that the effectiveness of the macitentan in patients with late-onset pulmonary hypertension after atrial septal defect operation in our center.
Methods: The effect of a single dose of macitentan (10 mg) on pulmonary hemodynamics, functional capacity was examined in four patients with late-onset pulmonary hypertension after atrial septal defect operation.
Results: The macitentan significantly improved mean pulmonary artery pressure (MPAP), cardiac output (CO), tricuspid annular plane systolic excursion (TAPSE), right ventricle systolic wave(RVS’), 6-minute walking test and NT-proBNP levels compared with before treatment.
Conclusions: Macitentan can be used in patients with late-onset pulmonary hypertension after shunt operation especially atrial septal defect.
The case is that of 83 year-old African American man with hypertension, hepatitis C induced decompensated cirrhosis with ascites, end-stage renal disease (ESRD) on hemodialysis, fluid overload with peripheral edema and chronic hypotension. The patient was referred to the dialysis access center of Pittsburgh, PA for evaluation of his prolonged bleeding from the left upper arm brachial-basilic arterial-venous fistula (BBAVF).
Objectives: We describe the clinical course and management of two patients with post-capillary pulmonary hypertension due to diffuse pulmonary venous baffle calcification decades post-Mustard procedure.Background: From the late 1950s to the early 1990s, the definitive surgical repair for children with D-transposition of the great vessels (D-TGA) was an atrial switch procedure (either Senning or Mustard operation) which utilizes atrial-level baffles to shunt pulmonary venous blood to the morphologic right (systemic) ventricle and caval blood to the morphologic left (sub-pulmonary) ventricle. From a hemodynamic standpoint, baffle leaks and stenoses as well as precapillary pulmonary hypertension have all been described as both early and late complications . Recently, delayed post-capillary pulmonary hypertension (in the absence of discrete baffle obstruction) decades post-atrial switch has also been described . The underlying pathophysiology for this postcapillary pulmonary hypertension is unclear but is theorized to involve impaired diastology referable to the pulmonary venous baffle. Methods/Results: Using hemodynamic and imaging data, we describe two patients with extensive pulmonary venous baffle calcification and resultant pulmonary hypertension from the so-called “stiff left atrial (LA) syndrome.” This problem can be difficult to treat medically and is not amenable to catheter-based interventions. We hypothesize that this is an underlying mechanism for pulmonary hypertension in at least some post-Mustard and Senning patients. Conclusion: We describe the treatments and clinical course for each of these patients, and in particular describe how the surgical revision of the pulmonary venous baffle in one case led to the complete resolution of symptoms.
In pregnancy, the incidence of pulmonary embolism (PE) is increased fivefold when compared to nonpregnant women of the same age, and PE is one of the leading causes of death during pregnancy.However, the diagnosis of PE among pregnant women is complicated by concerns regarding radiation exposure. Systemic lupus erythematosus (SLE) is an autoimmune disorder with a wide array of presentations and a predilection to affect women of certain ethnic backgrounds. The hallmark of the disease is multisystem involvement, dispersed in time and severity. Usual pulmonary involvement includes pleuritis, pleural effusions, pneumonitis, shrinking lung syndrome, pulmonary hypertension, and alveolar hemorrhage. Pulmonary embolism (PE) is a relatively unusual presentation of SLE. We report the case of a 20-year-old primi at 21 weeks gestation with an acute PE with central chest pain and shortness of breath. The absence of overt signs and symptoms and traditional risk factors prompted a fragmentary workup. This led to the detection of antibodies sensitive for SLE, in the absence of overt signs and symptoms. We revive the concept of latent lupus, a condition construed as early lupus. We firmly suspect direct causation between SLE and PE. Further studies are needed to establish pathogenesis to facilitate early diagnosis and prevent morbidity and mortality from PE. Due to persistent hypotension, thrombolytic therapy with streptokinase was administered and the clinical and hemodynamic response was excellent, with no maternal or fetal hemorrhagic complications. The clinical presentation of pulmonary embolism is sometimes camouflaged by the physiological changes that occur in pregnancy and diagnosis is often delayed by a reluctance to expose the fetus to ionizing radiation.
Assia Haddad*, Mohamed Karim Guerchani, Nadia Ould Bessi, Dalila Djermane, Omar Ait Mokhtar, Hakim Himeur and Salim Benkhedda
Published on: 8th September, 2022
Background: Heart Failure with Preserved Ejection Fraction (HFPEF) accounts for more than half of the cases of heart failure.Long regarded as an abnormality of left ventricular diastolic function, recent studies using longitudinal strain (two-dimensional speckle tracking mode) have suggested that left ventricular longitudinal systolic function is altered in HFPEF.Despite these interesting pathophysiological perspectives, the data in the literature on the prognostic value of the alteration of longitudinal strain are controversial. Given these conflicting results, it is difficult to confirm the magnitude and prevalence of impaired LV longitudinal systolic function in patients with HFPEF and its prognostic relevance. Purposes: This work aims to study the prognostic value of Global the left ventricle’s Global Longitudinal Strain (GLS) Algerian cohort of patients with HFPEF. Patients and methods: We conducted a monocentric prospective observational study from April 2018 to April 2020, with a minimum follow-up of 1 year for each recruited patient. We included patients over the age of 18 referred to the echocardiography laboratory for chronic or acute HFpEF, defined according to the criteria of ESC 2016. 153 consecutive patients underwent clinical examination, biological tests, and echocardiography with measurement of GLS at rest, in addition to routine management by the attending physicians.Results: 153 patients were collected. The average age of our patients is 73 +/- 11 years ranging from 42 to 91 years old. The female population is predominant with a rate of 67%. Comorbidities are predominant mainly by arterial hypertension (86%) and diabetes (64%), with a history of atrial fibrillation (46%).63% of patients have impaired GLS (< 16%). Contrary to our hypothesis, GLS was not shown to be a powerful predictor of cardiovascular events in HFPEF patients either in dichotomous analysis (OR = 0.79; p = 0.64) or in continuous analysis (OR = 0.97; p = 0.69).We were able to identify that congestive venous signs, anemia, and pulmonary hypertension, are the main independent prognostic factors in our Algerian population study. Conclusion: We were unable to demonstrate the prognostic role of mpaired GLS in our population of patients with HFPEF.
I hope to ability to make some new investigation and publish in Your Company in future.
I wanna to thank Clinical Journal of Nursing Care and Practice for its effort to review and publish my manuscript. This is reputable journal. Thank you!
“The choice to submit the forensic case study to the Journal of Addiction Therapy and Research was dictated by the match between the content and the potential readership. The publication process proved to be expedient and we were provided with constructive feedback from reviewers. The final article layout is attractive and conforms to standards. All-in-all, it has been a rewarding process.”
Elisabeth H Wiig
It has been a fabulous journey writing articles for your journal because of the encouragement you people provide for writers from developing nations like India. Kindly continue the same. Looking forward for a long term association.
I would like to thank this journal for publishing my Research Article. Something I really appreciate about this journal is, they did not take much time from the day of Submission to the publishing date. Looking forward to have more publications in future.
Your service is very good and fast reply, Also your service understand our situation and support us to publication our articles.
Palestine College of Nursing, Khan Younis, Gaza Strip, Palestine
Ayman M Abu Mustafa
We really appreciate your efforts towards our article, the professional way you handle our request for exemption from charges.
It was a great honor for us to publish in your magazine.
Your journal co-operation is very appreciable and motivational. I am really thankful to your journal and team members for the motivation and collaboration to publish my work.
Assistant Professor, UCLAS Uttaranchal University, Dehradun, India
I like the quality of the print & overall service. The paper looks quite impressive. Hope this will attract interested readers. All of you have our best wishes for continued success.
Once I submitted the manuscript, the response time of the reviewers was very fast. The fine-tuning of the galley proof was likewise prompt. I believe the journal provide a valuable outlet to disseminate physical rehabilitation scientific knowledge to the clinical community.