Ecosystem Interactions Class Discussion Presentation in Blue Green Lined Styl...
Electrocardiography,cvp,blood pressure
1. JJM MEDICAL COLLEGE DAVANGERE DEPARTMENT OF ANAESTHESIOLOGY SEMINAR ON Blood pressure , ECG , Central venous pressure CHAIRPERSON PRESENTED BY DR.RAVISHANKAR . R B DR.RAVIVARMA.D PROFESSOR PG IN ANAESTHESIA DEPT OF ANAESTHESIA
3. “ Not everything that counts can be counted. And not everything that can be counted counts.” - Albert Einstein adapted from THE ICU BOOK by PAUL MARINO
5. “Of all the procedures done in clinical medicine that have important consequences, measurement of blood pressure is likely the one that is done most haphazardly” – kaplan,M.D adapted from THE ICU BOOK by PAUL MARINO
8. “It should be clearly recognized that arterial pressure cannot be measured with precision by means of sphygmomanometers” – American heart association 1951
22. “It is what we think we know already that often prevents us from learning” - Claude Bernard
23.
24.
25. Lowest hearing frequency – 16 Htz“ A situation exists where the human ear being used to measure BP is, at best, basically deaf to some sound it should be detecting” adapted from Am J Cardiol 1989;63:983-985
28. Since korotkoff sound is in the lower frequency BELL should be used for BP measurementRecommendations for blood pressure measurement. Circulation 2005;111:697-716
29. SBP decreases by 8 mm DBP increases by 5 mm SBP increases by 8 mm DBP decreases by 5 mm
30.
31. In case of slow heart rate it is 1 mm per pulse
32. When the rate is greater than 3 mm per secSystolic is underestimated and diastolic is over estimated
35. When this occurs, the sounds may not be heard at first and this will result in falsely low recordings for the systolic bloodpressure.Cohn JN. Blood pressure measurement in shock. JAMA 1967; 119:118.
36.
37. When an inflated cuff is placed over an artery, the pulsatilepressure changes in the artery will be transmitted to the inflated cuff, producing similar changes in cuff pressure.
38.
39.
40. It is most evident in the popularity of pressor or vasoconstrictor agents in the management of clinical shock.
41.
42. When vascular impedance (i.e., compliance and resistance) is increased the velocity of the flow wave is decreased.
80. Prognostic value of routine preoperative ECG “ Due to improvement in accuracy of clinical cardiac risk factors to identify patients who are at increased risk of peri operative cardiac events, the routine use of ECG in all patients is of questionable value” noordzij et al: Am J Cardiol 2006;97:1103-1106
81.
82.
83. Most modern electrocardiographic monitors allow the operator a choice of several bandwidths. (1) a diagnostic mode with a bandwidth of 0.05 to 130 Hz (2) a monitoring mode with a bandwidth of 0.5 to 40 Hz (3) a filter mode with a bandwidth of 0.5 to 20 Hz.
120. He who works with his hands is a laborer. He who works with his head and his hands is a craftsman. - St. Francis of Assisi adapted from THE ICU BOOK by PAUL MARINO