Respiratory muscle weakness increases dead ‐space ventilation ratio aggravating ventilation–perfusion mismatch during exercise in patients with chronic heart failure

ConclusionRespiratory muscle weakness was associated with an increased dead ‐space ventilation ratio aggravating ventilation–perfusion mismatch during exercise in patients with CHF.
Source: Respirology - Category: Respiratory Medicine Authors: Tags: Original Article Source Type: research

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Conclusion Discordance with stress myocardial blood flow in the corresponding flow territory was found in 32% of the fractional flow reserve-measurements. Patients with reduced stress myocardial blood flow but normal fractional flow reserve showed significantly reduced stress myocardial blood flow in all coronaries and a trend towards more cardiac adverse events.
Source: Nuclear Medicine Communications - Category: Nuclear Medicine Tags: Original Articles Source Type: research
Publication date: Available online 14 January 2020Source: Journal of Clinical NeuroscienceAuthor(s): Antonio Ciacciarelli, Giuliano Sette, Franco Giubilei, Francesco OrziAbstractDespite the large body of data available, chronic cerebral hypoperfusion lacks an operative definition. In a tautological way, the term hypoperfusion is being referred to conditions of “inadequate blood flow”, “defects of perfusion” or “dysfunction of autoregulation”. The chronicity refers to sustained conditions or wavering states characterized by repeated phases of inefficient functional hyperemia. The phenomen...
Source: Journal of Clinical Neuroscience - Category: Neuroscience Source Type: research
AbstractBackgroundPatients with atrial fibrillation (AF) and dementia experience reduced quality of life and increased mortality. Technetium 99m ECD brain perfusion single-photon emission computed tomography (99mTc-ECD brain perfusion SPECT) is a beneficial modality for diagnosing dementia and identifying high-risk patients with mild cognitive impairment. The aim of this study was to evaluate the prognostic value of brain perfusion using99mTc-ECD SPECT in patients with AF and dementia.MethodsOf a total of 405 consecutive patients diagnosed with AF as cardiac outpatients with dementia using the Mini-Mental State Examination...
Source: EJNMMI Research - Category: Radiology Source Type: research
Although depressive symptoms increased mortality and hospitalization in chronic heart failure (CHF) patients, the underlying mechanism remains unclear. The aim of this study was to investigate whether an alteration in hippocampal perfusion, which is the neural substrate of depressive symptoms, is associated with changes in cardiac structures and/or functions in CHF patients.
Source: International Journal of Cardiology - Category: Cardiology Authors: Source Type: research
Publication date: Available online 6 January 2020Source: Journal of Critical CareAuthor(s): Lukas Lannemyr, Gudrun Bragadottir, Bengt Redfors, Sven-Erik RickstenAbstractPurposeEarly postoperative heart failure is common after cardiac surgery, and inotrope treatment may impact renal perfusion and oxygenation. We aimed to study the renal effects of the inodilator milrinone when used for the treatment of heart failure after weaning from cardiopulmonary bypass (CPB).Material and methodsIn 26 patients undergoing cardiac surgery with CPB, we used renal vein catheterization to prospectively measure renal blood flow (RBF), glomeru...
Source: Journal of Critical Care - Category: Gastroenterology Source Type: research
Conclusion: Due to the increased incidence of dementia and cardiovascular diseases, the coexistence of the two will cause more threat to public health, warranting much more attention. Here, we will update recent reports on dementia, AD, and cardiovascular diseases and discuss the causal relationship between dementia and heart dysfunction. PMID: 31897470 [PubMed - as supplied by publisher]
Source: Acta Biochimica et Biophysica Sinica - Category: Biochemistry Authors: Tags: Acta Biochim Biophys Sin (Shanghai) Source Type: research
CONCLUSION: The results of this national survey of public attitudes towards cardiac DCDD will inform the implementation of cardiac DCDD programs in a manner that is consistent with public values. PMID: 31898773 [PubMed - as supplied by publisher]
Source: Canadian Journal of Anaesthesia - Category: Anesthesiology Authors: Tags: Can J Anaesth Source Type: research
ConclusionThe results of this national survey of public attitudes towards cardiac DCDD will inform the implementation of cardiac DCDD programs in a manner that is consistent with public values.
Source: Canadian Journal of Anesthesia - Category: Anesthesiology Source Type: research
MD+DI has taken a hard look at the private medtech sector and developed this list of 20 private companies we will be paying particularly close attention to in the new year. It was not an easy task. There are so many interesting private companies in the industry right now that we started with a much longer list and whittled it down to the 20 companies that stood out most to us. So without further ado, here are the 20 companies that made the cut: 4C Medical is developing the AltaValve, a transcatheter mitral valve replacement (TMVR) platform designed to address mitr...
Source: MDDI - Category: Medical Devices Authors: Tags: Business Source Type: news
MD+DI has taken a hard look at the private medtech sector and developed this list of 20 private companies we will be paying particularly close attention to in the new year. It was not an easy task. There are so many interesting private companies in the industry right now that we started with a much longer list and whittled it down to the 20 companies that stood out most to us. So without further ado, here are the 20 companies that made the cut: 4C Medical is developing the AltaValve, a transcatheter mitral valve replacement (TMVR) platform designed to address mitr...
Source: MDDI - Category: Medical Devices Authors: Tags: Business Source Type: news
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