airflow (Panel A, normal flow; Panel B, reduced flow). Residual volume may account for as much as 60 to 70% of predicted total lung capacity. Patients with COPD must breathe at larger lung volumes to optimize expirato...
COPD患者早期即会出现气道陷闭;随着气道受限的持续进展,出现过度充气。肺功能检查表现为肺总量(total lung capacity,TLC)、功能残气量(functional residual capacity,FRC)和残气量(residual volume,RV)增加,肺活量(vital capacity,VC)降低,残气量/肺总量比值...
Lung volumes in COPD: not only the total lung capacity.Obstructive sleep apneaAnimal modelAirway obstructionInflammationComment on Chest. 2010 May;137(5):1108-15. Chest. 1999 Jan;115(1):68-74.doi:10.1378/chest.10-0045Scarlata, Simone
Total lung capacity (TLC), functional residual capacity, residual volume, and corresponding 95% confidence intervals were measured in 245 healthy nonsmokin... RO Crapo,AH Morris,PD Clayton,... - 《Bull Eur Physiopathol Respir》 被引量: 1257发表: 1982年 Improvement in resting inspiratory capacity...
RV/TLC(残气量/肺总量),CC/TLC(闭合容量/肺总量),一向被认为是判断小气道功能的灵敏指标,但在COPD病人并无判定意义,为进一步证实这一结论,我们选60岁以上健康老年人51名和116名有典型COPD病史及体征的住院病人,使用Chest-25F电子肺功能机进行坐位肺功能检查,苹果Ⅱ型电子计算机处理数据.由于RV/TLC,CC/TLC与性别...
,18,Normal,FRC,TLC,IC,IC,20,40,60,80,100,120,Lung Volume(%Pred Total Lung Capacity),COPD,TV,COPD-功能残气量增加,TV,COPD气流受限呼气期为主,导致呼气末气体潴留功能残气量增加; 吸气末肺容积接近肺总量,须克服更高肺、胸廓弹性阻力。,0,19,COPD实验室检查,X线:两肺纹理紊乱。胸廓扩张、膈低平、...
包括:深吸气量(IC): inspiratory capacity IC=VT+IRV有力/肺活量(FVC/VC): forced /vital capacity VC=IC+ERV=(VT+IRV)+ERV 功能残气量(FRC):function residual capacity FRC=ERV+RV肺总量(TLC): total lung capacity TLC=VC+RV=(VT+IRV)+ERV+RV22慢性阻塞性肺病COPD概念、病理和治疗措施 肺总量...
TLC:肺总量, total lung capacity FRC:功能残气量,functional residual capacity RV:残气量, residual volume ERV:补呼气量,expiratory reserve volume IC:深吸气量,inspiratory capacity VT:潮气量, tidal volume IRV:补吸气量, inspiratory reserve volumeCOPD * 首先我们来看一下,气道反复收缩扩张所带来的危害。
As a gaseous pollutant, its primary target tissue is the lung and breathing slightly elevated concentr... IS Mudway,FJ Kelly - 《Molecular Aspects of Medicine》 被引量: 410发表: 2000年 Plasma Antioxidants Are Associated with Impaired Lung Function and COPD Exacerbations in Smokers Low molecule ...
结论 1、按照我国现有 PEF 预计值公式计算,60 以上成年男性 PEF 预计值低于实际 测定值。 2、PEF 能够较好的检测到 COPD 患者的气流受限,其敏感性和特异性均高于 单纯依靠临床症状判断。 3、PEF 可以作为基层与社区初步筛选 COPD 气流受限的手段。参考文献 Global Initiative for Chronic Obstructive Lung Disease....