Abstract
Although it is known that rhythmic coughing can preserve consciousness during ventricular fibrillation, the arterial pressure transients which result have not yet been shown to reflect forward blood flow in man. The effectiveness of cough in causing forward flow in eight normal volunteers with bradycardia was studied. They coughed between cardiac cycles, using an audio and visual display of the electrocardiogram. The force of the cough was varied and measured with an oesophageal balloon. Blood flow was recorded with a Döppler velocity probe over the radial artery and a finger or ear photoplethysmograph. Motion artefact on the Döppler record due to coughing was excluded by transiently obstructing the brachial artery. We compared the areas under 5-10 consecutive Döppler and photoplethysmograph pulse flow tracings due to the cough and heart beat with those due to the immediately preceding heart beat alone. They were significantly increased. This augmentation was greater in those flow pulses accompanied by a more vigorous cough. It is concluded that coughing is associated with an effort dependent forward flow pulse in the arterial circulation.
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Selected References
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- Cobb L. A., Werner J. A., Trobaugh G. B. Sudden cardiac death. II. Outcome of resuscitation; management, and future directions. Mod Concepts Cardiovasc Dis. 1980 Jul;49(7):37–42. [PubMed] [Google Scholar]
- Criley J. M., Blaufuss A. H., Kissel G. L. Cough-induced cardiac compression. Self-administered from of cardiopulmonary resuscitation. JAMA. 1976 Sep 13;236(11):1246–1250. [PubMed] [Google Scholar]
- KOUWENHOVEN W. B., JUDE J. R., KNICKERBOCKER G. G. Closed-chest cardiac massage. JAMA. 1960 Jul 9;173:1064–1067. doi: 10.1001/jama.1960.03020280004002. [DOI] [PubMed] [Google Scholar]
- MILIC-EMILI J., MEAD J., TURNER J. M., GLAUSER E. M. IMPROVED TECHNIQUE FOR ESTIMATING PLEURAL PRESSURE FROM ESOPHAGEAL BALLOONS. J Appl Physiol. 1964 Mar;19:207–211. doi: 10.1152/jappl.1964.19.2.207. [DOI] [PubMed] [Google Scholar]
- Rosborough J. P., Hausknecht M., Niemann J. T., Criley J. M. Cough supported circulation. Crit Care Med. 1981 May;9(5):371–372. doi: 10.1097/00003246-198105000-00009. [DOI] [PubMed] [Google Scholar]
- Rudikoff M. T., Maughan W. L., Effron M., Freund P., Weisfeldt M. L. Mechanisms of blood flow during cardiopulmonary resuscitation. Circulation. 1980 Feb;61(2):345–352. doi: 10.1161/01.cir.61.2.345. [DOI] [PubMed] [Google Scholar]
- WEALE F. E., ROTHWELL-JACKSON R. L. The efficiency of cardiac massage. Lancet. 1962 May 12;1(7237):990–992. doi: 10.1016/s0140-6736(62)92031-7. [DOI] [PubMed] [Google Scholar]