Results 1 to 10 of about 329,849 (308)

Influencing factors of pulmonary ventilation function and its relationship with indoor air pollution in rural areas of Gansu Province

环境与职业医学, 2022
BackgroundIndoor air pollution is an important risk factor affecting health of the respiratory system. Studies on indoor air pollution in China are mostly limited to the central and eastern regions, and there are few studies in the rural areas of ...
Xiaoyu TIAN, Hongxia SHI, Sheng LI, Yanjun BAI, Keqin HU, Jun YAN, Baode XUE, Yanlin LI, Jingping NIU, Bin LUO   +9 more
doaj   +1 more source

Hypoxic pulmonary vasoconstriction as a regulator of alveolar-capillary oxygen flux: A computational model of ventilation-perfusion matching.

PLoS Computational Biology, 2021
The relationship between regional variabilities in airflow (ventilation) and blood flow (perfusion) is a critical determinant of gas exchange efficiency in the lungs.
Andrew D Marquis, Filip Jezek, David J Pinsky, Daniel A Beard   +3 more
doaj   +1 more source

Novel pulmonary perfusion imaging using chest digital dynamic radiography for pulmonary artery sarcoma

Respirology Case Reports, 2021
Key message Chest digital dynamic radiography (DDR) is a novel method for evaluating pulmonary perfusion and ventilation. It could depict ventilation–perfusion mismatch in a pulmonary artery sarcoma with severe stenosis in the right pulmonary artery ...
Shota Yamamoto, Fumio Sakamaki, Genki Takahashi, Ryotaro Yuji, Tomohiro Matsumoto, Terumitsu Hasebe   +5 more
doaj   +1 more source

Perioperative lung-protective ventilation strategy reduces postoperative pulmonary complications in patients undergoing thoracic and major abdominal surgery [PDF]

Korean Journal of Anesthesiology, 2016
The occurrence of postoperative pulmonary complications is strongly associated with increased hospital mortality and prolonged postoperative hospital stays.
Sang-Heon Park
doaj   +1 more source

Noninvasive ventilation in stable hypercapnic COPD: what is the evidence?

ERJ Open Research, 2018
Long-term noninvasive ventilation (NIV) to treat chronic hypercapnic respiratory failure is still controversial in severe chronic obstructive pulmonary disease (COPD) patients. However, with the introduction of high-intensity NIV, important benefits from
Marieke L. Duiverman
doaj   +1 more source

Atypical bilateral ventilation/perfusion mismatches in an asymptomatic patient suffering from metastatic thyroid cancer

European Journal of Hybrid Imaging, 2021
Background Pulmonary embolism is indicated by ventilation/perfusion (V/P) mismatches in ventilation/perfusion scintigraphy. However, other pathologies may also evoke segmental or lobar mismatches. Thus, diagnosis can be difficult in asymptomatic patients
David Kersting, Christoph Rischpler, Till Plönes, Clemens Aigner, Lale Umutlu, Ken Herrmann, Hubertus Hautzel   +6 more
doaj   +1 more source

Assessment of Ventilation and Perfusion in Patients with COVID-19 Discloses Unique Information of Pulmonary Function to a Clinician: Case Reports of V/P SPECT

Clinical Medicine Insights: Circulatory, Respiratory and Pulmonary Medicine, 2021
V/P SPECT from 4 consecutive patients with COVID-19 suggests that ventilation and perfusion images may be applied to diagnose or exclude pulmonary embolism, verify nonsegmental diversion of perfusion from the ventilated areas (dead space ventilation ...
Marika Bajc, Fredrik Hedeer, Ari Lindqvist, Elin Trägårdh   +3 more
doaj   +1 more source

Effect of positioning and expiratory rib-cage compression on atelectasis in a patient who required prolonged mechanical ventilation: a case report

Journal of Medical Case Reports, 2022
Background Pulmonary complications can be caused by intraoperative mechanical ventilation. In particular, prolonged mechanical ventilation is associated with a high mortality rate, a risk of pulmonary complications, prolonged hospitalization, and an ...
Takuya Hosoe, Tsuyoshi Tanaka, Honoka Hamasaki, Kotomi Nonoyama   +3 more
doaj   +1 more source

Pulmonary circulation and ventilation [PDF]

Postgraduate Medical Journal, 1974
Summary The pulmonary circuit receives the whole of the cardiac output, and the flow through it is governed by events in the systemic circulation. Its function is gaseous exchange, and the low resistance and high capacitance of the circuit is subservient to this function.
openaire   +2 more sources

Effect of lung protective ventilation on perioperative pulmonary infection in elderly patients with mild to moderate COPD under general anesthesia

Journal of Infection and Public Health, 2020
Objective: The research aims to explore the effects of different ventilation time on postoperative pulmonary infection in elderly patients with the mild and moderate chronic pulmonary obstructive disease (COPD), so as to provide evidence for reducing ...
Xiaochen Ji, Wenbin Cui, Boya Zhang, Shiqiang Shan   +3 more
doaj   +1 more source