Search Results - "Ditchey, R V"

Failure of epinephrine to improve the balance between myocardial oxygen supply and demand during closed-chest resuscitation in dogs by DITCHEY, R. V, LINDENFELD, J

“…Although large doses of epinephrine increase coronary perfusion pressure and flow during cardiopulmonary resuscitation, epinephrine also increases myocardial…”
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Human right ventricular end-systolic pressure-volume relation defined by maximal elastance by BROWN, K. A, DITCHEY, R. V

“…This study was undertaken to determine 1) whether a combined radionuclide-hemodynamic technique could define the right ventricular end-systolic pressure-volume…”
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Myocardial oxygen requirements during experimental cardiopulmonary resuscitation by Ditchey, R V, Goto, Y, Lindenfeld, J

“…The aims were to determine myocardial oxygen requirements during cardiopulmonary resuscitation (CPR), and to test the hypothesis that endogenous catecholamines…”
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Thermodilution method overestimates low cardiac output in humans by van Grondelle, A, Ditchey, R V, Groves, B M, Wagner, Jr, W W, Reeves, J T

“…We compared 57 cardiac output measurements by the thermodilution and Fick methods in 26 patients and found that thermodilution values were higher in all 16…”
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Potential adverse effects of volume loading on perfusion of vital organs during closed-chest resuscitation by DITCHEY, R. V, LINDENFELD, J

“…To determine whether expansion of blood volume improves vital organ perfusion pressures and blood flow during closed-chest cardiopulmonary resuscitation in…”
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Relative lack of coronary blood flow during closed-chest resuscitation in dogs by Ditchey, R V, Winkler, J V, Rhodes, C A

“…Recent studies have shown that blood flow during closed-chest cardiopulmonary resuscitation (CPR) results primarily from generalized changes in intrathoracic…”
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Volume-dependent effects of positive airway pressure on intracavitary left ventricular end-diastolic pressure by DITCHEY, R. V

“…To test the hypothesis that the effects of positive end-expiratory airway pressure (PEEP) on intracavitary left ventricular end-diastolic pressure (LVEDP)…”
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Right heart pressure does not equal pericardial pressure in the potassium chloride-arrested canine heart in situ by SLINKER, B. K, DITCHEY, R. V, BELL, S. P, LEWINTER, M. M

“…Recently proposed concepts of pericardial surface pressure, as opposed to liquid pressure, have advanced our understanding of the relationship between…”
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Metabolic evidence of inadequate coronary blood flow during closed-chest resuscitation in dogs by Ditchey, R V, Horwitz, L D

“…Closed-chest cardiopulmonary resuscitation (CPR) produces only small pressure differences across the coronary circulation and relatively little coronary blood…”
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A potential method of correcting intracavitary left ventricular filling pressures for the effects of positive end-expiratory airway pressure by DITCHEY, R. V, LINDENFELD, J, GROGAN, E. W, ZERBE, G. O

“…Based on the observation that positive end-expiratory airway pressure (PEEP) causes comparable increments in intrapericardial and right-sided intracardiac…”
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Effects of apparently nontoxic doses of digoxin on ventricular ectopy after direct-current electrical shocks in dogs by Ditchey, R V, Curtis, G P

“…To determine whether nontoxic doses of digoxin increase the risk of serious ventricular arrhythmias after d.c. cardioversion, studies were made of the effects…”
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Beta-adrenergic blockade reduces myocardial injury during experimental cardiopulmonary resuscitation by Ditchey, Roy V., Rubio-Perez, Ana, Slinker, Bryan K.

“…Objectives. We attempted to determine the effects of beta-adrenergie blockade during cardiopulmonary resuscitation (CPR) on defibrillation rates and…”
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Determinants of the relation between systolic pressure and duration of isovolumic relaxation in the right ventricle by Triffon, Douglas, Groves, Bertron M., Reeves, John T., Ditchey, Roy V.

“…Previous studies have suggested that right ventricular systolic pressure can be predicted from noninvasive estimates of the interval between pulmonary valve…”
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Safety of electrical cardioversion in patients without digitalis toxicity by Ditchey, R V, Karliner, J S

“…To ascertain whether electrical cardioversion increases ventricular ectopy in patients receiving nontoxic doses of digitalis, we recorded continuous…”
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Acute effects of doxorubicin (adriamycin) on left ventricular function in dogs by Ditchey, R V, LeWinter, M M, Higgins, C B

“…Although chronic doxorubicin (adriamycin) cardiotoxicity often is attributed to repeated episodes of acute myocardial injury, the acute effects of doxorubicin…”
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Phenylephrine plus propranolol improves the balance between myocardial oxygen supply and demand during experimental cardiopulmonary resuscitation by Ditchey, R V, Slinker, B K

“…Epinephrine increases coronary blood flow but may not improve the balance between myocardial oxygen supply and demand during cardiopulmonary resuscitation…”
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Reliability of echocardiographic and electrocardiographic parameters in assessing serial changes in left ventricular mass by Ditchey, R V, Schuler, G, Peterson, K L

“…A reliable noninvasive index of left ventricular mass would be useful in following patients with valvular heart disease and left ventricular hypertrophy. We…”
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Effects of direct-current electrical shocks on systolic and diastolic left ventricular function in dogs by Ditchey, R V, LeWinter, M M

“…Although direct-current (DC) electrical shocks do not significantly alter left ventricular systolic performance, their effects on ventricular diastolic…”
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Effects of airway pressure and lung volume on left ventricular transmural pressure-volume relationships in humans by Ditchey, R V, Costello, D, Shabetai, R

“…Positive airway pressure, combined with increased lung volume, decreases left ventricular compliance in dogs. To determine whether airway pressure or lung…”
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Effects of exercise training on left ventricular mass in patients with ischemic heart disease by Ditchey, R V, Watkins, J, McKirnan, M D, Froelicher, V

“…To determine whether exercise training results in increased left ventricular mass in patients with ischemic heart disease, we obtained echocardiograms in 14…”
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