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Acute intermittent hypercapnic hypoxia augments left ventricular contractility
The Journal of Physiology, EarlyView.Abstract figure legend Twenty‐four healthy adults were studied to determine the effects of an acute session of 40 min of intermittent hypercapnic hypoxia on cardiac performance. Cardiac function was assessed via echocardiography at rest and during graded stages of lower‐body negative pressure before and after the intervention to quantify load ...
Scott F. Thrall +8 more
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The Journal of Physiology, EarlyView.Abstract figure legend A sudden decrease in total peripheral resistance (TPR), as observed during vasovagal syncope, leads to a reduction in aortic systolic pressure (AO pressure) and afterload. In healthy individuals, the consequent decrease in left ventricular systolic pressure (LV pressure) lowers stroke work and myocardial energy expenditure.
Martin Dvoulety, Michal Sitina
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The Annals of Thoracic Surgery, 1966
Publication of the interesting report of implantation of a cardiac pacemaker in a 4-month-old infant by Martin, et al. (Pediatrics, 37:323, 1966), raises the question of pacemaker selection for the infant with heart block. The Cordis Atriocor Synchronous type of pacemaker is probably best for this condition because it is possible to vary the ...
+6 more sources
Publication of the interesting report of implantation of a cardiac pacemaker in a 4-month-old infant by Martin, et al. (Pediatrics, 37:323, 1966), raises the question of pacemaker selection for the infant with heart block. The Cordis Atriocor Synchronous type of pacemaker is probably best for this condition because it is possible to vary the ...
+6 more sources
Annals of Internal Medicine, 1977
Excerpt Close follow-up of implanted cardiac pacemakers allows safe complete use of battery life.
C N, Leach, M J, Sands, S, Galle
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Excerpt Close follow-up of implanted cardiac pacemakers allows safe complete use of battery life.
C N, Leach, M J, Sands, S, Galle
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The American Journal of Nursing, 1975
cardiac monitoring equipment such as telemetry units should not be mistaken for a temporary pacemaker. The pacemaker may be completely external or partially implanted (transthoracic, epicardial, endocardial). Completely external temporary pacing, historically the first method used, delivers shocks to the heart through electrode plates taped to the ch ...
E H, Winslow, L B, Marino
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cardiac monitoring equipment such as telemetry units should not be mistaken for a temporary pacemaker. The pacemaker may be completely external or partially implanted (transthoracic, epicardial, endocardial). Completely external temporary pacing, historically the first method used, delivers shocks to the heart through electrode plates taped to the ch ...
E H, Winslow, L B, Marino
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New England Journal of Medicine, 1970
Complications of Pacing Despite nearly a decade of experience with temporary and permanent pacemaker systems, complications and failures are the rule rather than the exception.
B, Lown, B D, Kosowsky
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Complications of Pacing Despite nearly a decade of experience with temporary and permanent pacemaker systems, complications and failures are the rule rather than the exception.
B, Lown, B D, Kosowsky
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2001
The pacemaker current If of the sinoatrial node (SAN) is a major determinant of cardiac diastolic depolarization and plays a key role in controlling heart rate and its modulation by neurotransmitters. Substantial expression of two different mRNAs (HCN4, HCN1) of the family of pacemaker channels (HCN) is found in rabbit SAN, suggesting that the native ...
D. DiFrancesco +3 more
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The pacemaker current If of the sinoatrial node (SAN) is a major determinant of cardiac diastolic depolarization and plays a key role in controlling heart rate and its modulation by neurotransmitters. Substantial expression of two different mRNAs (HCN4, HCN1) of the family of pacemaker channels (HCN) is found in rabbit SAN, suggesting that the native ...
D. DiFrancesco +3 more
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Rechargeable Cardiac Pacemaker
Postgraduate Medicine, 1973A modified space satellite power cell is the rechargeable power source for a new cardiac pacemaker that should last 20 years.
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JAMA: The Journal of the American Medical Association, 1973
To the Editor.— I would question the medical wisdom of having patients use a magnet at home to change their demand pacemaker to the fixed rate (222:1379, 1972). The first time a physician encounters a ventricular fibrillation in a patient and the patient dies, he is going to be liable not only for wrongful death, but for punitive damages, because of ...
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To the Editor.— I would question the medical wisdom of having patients use a magnet at home to change their demand pacemaker to the fixed rate (222:1379, 1972). The first time a physician encounters a ventricular fibrillation in a patient and the patient dies, he is going to be liable not only for wrongful death, but for punitive damages, because of ...
openaire +2 more sources