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- W1990746077 abstract "Will the electrocardiogram differentiate between types of chronic airway obstruction? This study was done to determine if there was any significant difference in the electrocardiogram of those patients with chronic airway obstruction who had relatively pure bronchitis or emphysema at postmortem examination. Utilizing the present standard electrocardiographic criteria for right ventricular hypertrophy plus new criteria we developed in a previous report, electrocardiograms of eight patients who had relatively pure bronchitis and 17 who had relatively pure chronic emphysema were reviewed for differentiating criteria. The most significant difference between electrocardiograms in the two groups was the presence of “P-pulmonale” in 13 of 17 emphysema patients. It was not found in any of the bronchitis patients. Two other suggestive differences were a greater degree of counterclockwise posterior rotation of the horizontal QRS vector and a greater clockwise rightward rotation (beyond 90°) of the frontal QRS vector in the emphysema group. Will the electrocardiogram differentiate between types of chronic airway obstruction? This study was done to determine if there was any significant difference in the electrocardiogram of those patients with chronic airway obstruction who had relatively pure bronchitis or emphysema at postmortem examination. Utilizing the present standard electrocardiographic criteria for right ventricular hypertrophy plus new criteria we developed in a previous report, electrocardiograms of eight patients who had relatively pure bronchitis and 17 who had relatively pure chronic emphysema were reviewed for differentiating criteria. The most significant difference between electrocardiograms in the two groups was the presence of “P-pulmonale” in 13 of 17 emphysema patients. It was not found in any of the bronchitis patients. Two other suggestive differences were a greater degree of counterclockwise posterior rotation of the horizontal QRS vector and a greater clockwise rightward rotation (beyond 90°) of the frontal QRS vector in the emphysema group." @default.
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- W1990746077 date "1971-10-01" @default.
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- W1990746077 title "The Electrocardiogram in Chronic Airways Obstruction" @default.
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- W1990746077 doi "https://doi.org/10.1378/chest.60.4.335" @default.
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