Results 31 to 40 of about 52,661 (244)

The variations of pressure in the pulmonary artery [PDF]

Experimental Biology and Medicine, 1912
The systolic and diastolic pressures existing in the pulmonary artery of naturally breathing dogs have not been heretofore investigated. By means of a sensitive pulse pressure instrument capable of standardization against maximal and minimal valves,1 it has been possible to fill this gap in the physiology of the circulation.
openaire   +2 more sources

Pulmonary artery pressures with tension pneumothorax [PDF]

Canadian Journal of Anaesthesia, 1990
Five hours following an uneventful coronary artery bypass graft operation, an otherwise healthy 54-yr-old man developed a pneumothorax while his lungs were being ventilated in the recovery room. Neither arterial blood gas analysis, ventilatory variables, nor clinical examination had suggested this diagnosis, which was made subsequent to a chest ...
P. Y. H. Yu, L. W. Lee
openaire   +3 more sources

Usefulness of pulmonary artery diameter in diagnosing pulmonary hypertension in patients admitted to tuberculosis intensive care unit

International Journal of Mycobacteriology, 2016
Objective/background: Pulmonary hypertension (PH) can be a complication of patients with severe pulmonary tuberculosis (TB). We aimed to study the correlation between pulmonary artery (PA) diameter (PAD) as measured by computed tomography (CT) and mean ...
Armin Nowroozpoor, Seyed Mohammadreza Hshemian, Majid Malekmohammad, Majid Marjani, Payam Tabarsi, Hamidreza Jamaati, Batoul Khoundabi, Afshin Moniri   +7 more
doaj   +1 more source

Selective parenchymal clamping in open partial nephrectomy: Early experience with a low cost, reusable novel parenchymal clamp

BJUI Compass, Volume 4, Issue 1, Page 88-95, January 2023., 2023
Abstract Objectives The objective of this study is to present our initial experience with a novel parenchymal clamp (NPC) developed to allow partial nephrectomies (PN) to be performed without whole kidney ischaemia. We compare patients who underwent PN with the NPC with those undergoing standard PNs. Methods The NPC applies pressure only to the portion
James Macneil, Shuo Liu, Ramiz Iqbal, Finlay Macneil   +3 more
wiley   +1 more source

Parameter inference in a computational model of hemodynamics in pulmonary hypertension [PDF]

arXiv, 2021
Pulmonary hypertension (PH), defined by a mean pulmonary arterial pressure (mPAP) $>$ 20 mmHg, is characterized by increased pulmonary vascular resistance and decreased pulmonary arterial compliance. There are few measurable biomarkers of PH progression, but a conclusive diagnosis of the disease requires invasive right heart catheterization (RHC ...
arxiv  

Hemodynamic rounds: Dilemma in the management of disconnected pulmonary arteries with double arterial ducts

Annals of Pediatric Cardiology, 2022
Segmental pulmonary arterial hypertension occurs when the right and left pulmonary arteries are nonconfluent and receive blood supply from different sources.
Kothandam Sivakumar, Ashish Ranjan Mohakud   +1 more
doaj   +1 more source

Application and reduction of a nonlinear hyperelastic wall model capturing ex vivo relationships between fluid pressure, area and wall thickness in normal and hypertensive murine left pulmonary arteries [PDF]

arXiv, 2022
Pulmonary hypertension is a cardiovascular disorder manifested by elevated arterial blood pressure together with vessel wall stiffening and thickening due to alterations in collagen, elastin and smooth muscle cells. Hypoxia-induced (type 3) pulmonary hypertension can be studied in animals exposed to a low oxygen environment for prolonged time periods ...
arxiv  

Poor expression of miR‐195‐5p can assist the diagnosis of cerebral vasospasm after subarachnoid hemorrhage and predict adverse outcomes

Brain and Behavior, Volume 12, Issue 12, December 2022., 2022
Abstract Objective Patients with spontaneous subarachnoid hemorrhage (SAH) may develop refractory arterial cerebral vasospasm (CVS), which is the leading cause of death in SAH patients. This study explored the clinical diagnostic value of serum miR‐195‐5p levels in CVS after SAH (SAH + CVS) and its relationship with the prognosis of SAH + CVS.
Yong Li, Senyuan Yang, Xiaobin Zhou, Runlong Lai   +3 more
wiley   +1 more source

Function of sildenafil on diseases other than urogenital system: An umbrella review

Frontiers in Pharmacology, 2023
Background: To investigate the function of sildenafil on diseases other than urogenital system, an umbrella review was conducted.Methods: Meta-analysis and systematic reviews on this topic were comprehensively evaluated in this umbrella review.
Zeyu Chen, Zeyu Chen, Yin Huang, Yin Huang, Dehong Cao, Shi Qiu, Bo Chen, Bo Chen, Jin Li, Jin Li, Yige Bao, Qiang Wei, Ping Han, Liangren Liu   +13 more
doaj   +1 more source

Numerical predictions of shear stress and cyclic stretch in the healthy pulmonary vasculature [PDF]

arXiv, 2021
Isolated post-capillary pulmonary hypertension (Ipc-PH) occurs due to left heart failure, which contributes to 1 out of every 9 deaths in the United States. In some patients, through unknown mechanisms, Ipc-PH transitions to combined pre-/post-capillary PH (Cpc-PH), diagnosed by an increase in pulmonary vascular resistance and associated with a ...
arxiv