Computerized tomographic quantification of chronic obstructive pulmonary disease as the principal determinant of frontal P vector

The American Journal of Cardiology
Lovely ChhabraDavid H Spodick

Abstract

Verticalization of the P-wave axis is characteristic of chronic obstructive pulmonary disease (COPD). We studied the correlation of P-wave axis and computerized tomographically quantified emphysema in patients with COPD/emphysema. Individual correlation of P-wave axis with different structural types of emphysema was also studied. High-resolution computerized tomographic scans of 23 patients >45 years old with known COPD were reviewed to assess the type and extent of emphysema using computerized tomographic densitometric parameters. Electrocardiograms were then independently reviewed and the P-wave axis was calculated in customary fashion. Degree of the P vector (DOPV) and radiographic percent emphysematous area (RPEA) were compared for statistical correlation. The P vector and RPEA were also directly compared to the forced expiratory volume at 1 second. RPEA and the P vector had a significant positive correlation in all patients (r = +0.77, p <0.0001) but correlation was very strong in patients with predominant lower lobe emphysema (r = +0.89, p <0.001). Forced expiratory volume at 1 second and the P vector had almost a linear inverse correlation in predominantly lower lobe emphysema (r = -0.92, p <0.001). DOPV positively corre...Continue Reading

References

Aug 1, 1995·American Journal of Respiratory and Critical Care Medicine·P A GevenoisJ C Yernault
Jul 1, 1996·American Journal of Respiratory and Critical Care Medicine·P A GevenoisJ C Yernault
May 15, 1998·Respiration; International Review of Thoracic Diseases·M HaraguchiK Shirato
Mar 20, 1999·Clinical Cardiology·R Baljepally, David H Spodick
Mar 1, 1960·The American Journal of Cardiology·D LITTMANN
May 12, 2006·The American Journal of Geriatric Cardiology·David H Spodick
Jan 20, 2010·Radiographics : a Review Publication of the Radiological Society of North America, Inc·Shin MatsuokaHiroto Hatabu
Feb 11, 2011·The American Journal of Cardiology·Anish J ThomasDavid H Spodick

Citations

Feb 5, 2013·International Journal of Chronic Obstructive Pulmonary Disease·Rishi BajajDavid H Spodick
May 22, 2013·International Journal of Chronic Obstructive Pulmonary Disease·Lovely ChhabraDavid H Spodick
Dec 3, 2013·International Journal of Chronic Obstructive Pulmonary Disease·Swapnil S LanjewarDavid H Spodick
Sep 24, 2015·International Journal of Cardiology·Goudis A Christos
Aug 25, 2015·International Journal of Cardiology·N Gurukripa Kowlgi, Lovely Chhabra
Mar 29, 2019·Respiratory Research·Peter AlterRudolf A Jörres

Related Concepts

Electrocardiographic Recorders
Focal Emphysema
Tomography, X-Ray Computerized Axial
Chronic Airflow Obstruction
Pathological Accumulation of Air in Tissues
Genetic Vectors
Respiratory Physiology
X-Ray Computed Tomography
Extent
Scanning

Related Feeds

Cardiovascular Diseases: Risk Factors

Cardiovascular disease is a significant health concern. Risk factors include hypertension, obesity, dyslipidemia and smoking. Women who are postmenopausal are at an increased risk of heart disease. Here is the latest research for risk factors of cardiovascular disease.

Related Papers

The American Journal of Cardiology
Anish J ThomasDavid H Spodick
International Journal of Chronic Obstructive Pulmonary Disease
Rishi BajajDavid H Spodick
© 2021 Meta ULC. All rights reserved