Document Detail


Central venous pulse pressure analysis using an R-synchronized pressure measurement system.
MedLine Citation:
PMID:  17053869     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: The information derived from central venous catheters is underused. We developed an EKG-R synchronization and averaging system to obtained distinct CVP waveforms and analyzed components of these. METHODS: Twenty-five paralyzed surgical patients undergoing CVP monitoring under mechanical ventilation were studied. CVP and EKG signals were analyzed employing our system, the mean CVP and CVP at end-diastole during expiration were compared, and CVP waveform components were measured using this system. RESULTS: CVP waveforms were clearly visualized in all patients. They showed the a peak to be 1.8+/- 0.7 mmHg, which was the highest of three peaks, and the x trough to be lower than the y trough (-1.6+/- 0.7 mmHg and -0.9+/- 0.5 mmHg, respectively), with a mean pulse pressure of 3.4 mmHg. The difference between the mean CVP and CVP at end-diastole during expiration was 0.58+/- 0.81 mmHg. CONCLUSIONS: The mean CVP can be used as an index of right ventricular preload in patients under mechanical ventilation with regular sinus rhythm. Our newly developed system is useful for clinical monitoring and for education in circulatory physiology.
Authors:
Yoshihisa Fujita; Daisuke Hayashi; Shinya Wada; Naoki Yoshioka; Takeshi Yasukawa; Gunther Pestel
Related Documents :
2791179 - Factors influencing the r-r interval during central venous injection in newborn swine.
5821859 - Early changes in the forearm circulation following transient increase of local external...
2128809 - Age-related changes in the pharmacodynamics of intravenous glyceryl trinitrate.
8891969 - Further investigations of the intraosseous pressure characteristics in necrotic lunates...
1273999 - The concordance of respiratory fluctuations in oesophageal and central venous pressures.
8755079 - Recanalization of aged venous thrombotic occlusions with the aid of a rheolytic system:...
679749 - Experimental myocardial infarction. 14. accelerated myocardial stiffening related to co...
9916609 - Amlodipine, felodipine, and isradipine in the treatment of chinese patients with mild-t...
21677769 - Under pressure: response urgency modulates striatal and insula activity during decision...
Publication Detail:
Type:  Evaluation Studies; Journal Article     Date:  2006-10-20
Journal Detail:
Title:  Journal of clinical monitoring and computing     Volume:  20     ISSN:  1387-1307     ISO Abbreviation:  J Clin Monit Comput     Publication Date:  2006 Dec 
Date Detail:
Created Date:  2006-12-04     Completed Date:  2007-08-15     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9806357     Medline TA:  J Clin Monit Comput     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  385-9     Citation Subset:  IM    
Affiliation:
Department of Anesthesiology & ICM, Kawasaki Medical School, 577 Matsushima, Kurashiki-city, Okayama, 701-0192, Japan. fujitay@med.kawasaki-m.ac.jp
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Blood Pressure Determination / methods*,  statistics & numerical data
Central Venous Pressure*
Electrocardiography / statistics & numerical data
Humans
Monitoring, Physiologic / methods*,  statistics & numerical data

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Fibrin glue as an adjunct to flap repair of anal fistulas: a randomized, controlled study.
Next Document:  Depressive symptoms as a risk factor for osteoporosis and fractures in older Mexican American women.