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Biomedical subjects

I B Alyn

Publications and source records attributed to I B Alyn.

7 recordsLinked to original sources
PubMed1992

Cardiovascular anatomy and physiology of the fetus, neonate, infant, child, and adolescent.

Practicing cardiovascular nurses are aware that significant differences exist in the cardiac anatomy and physiology of children and adults. Generally, the younger the child the greater these differences are. The cellular anatomy and physiology are markedly different in the fetus, neonate, and infant. As development progresses, cardiac function begins to more closely approximate that of an adult. This article describes the anatomical and physiologic development of the fetus, neonate, infant, child, and adolescent. The developmental differences in preload, afterload, contractility, and heart rate are summarized.

Adolescent↗
PubMed1992

Pharmacologic manipulation of preload, afterload, and contractility in the young.

Cardiovascular nurses who work with the young are faced with the challenge of understanding the specifics of pharmacologic agents that enhance cardiac output. This article is a summary of the drugs commonly used to manipulate preload, afterload, and contractility in the young. Diuretics, vasodilators, and positive inotropes are discussed in the text. The specifics of pharmacokinetics, dosage, and special considerations are summarized in table form in the Appendix.

Cardiac Output↗
PubMedDate not supplied

What is caring?

Explore the source record for details and available documents.

Christianity↗
PubMedDate not supplied

Living with a permanent cardiac pacemaker.

Responses of 30 cardiac pacemaker recipients showed that 90 per cent were aware of warning signs and symptoms prior to pacemaker implantation, but only 37 per cent sought medical attention when the initial warning signs were evident. The group which sought care experienced more symptoms per patient than the other groups which did not seek early treatment. The most commonly occurring symptoms experienced by the patients prior to pacemaker insertion were blackouts and slow regarding pacemaker implantation were made by the physician alone. Patients took inventory after implantation, and 60 per cent reported that they were fortunate to have received a pacemaker. During the inventory and long-term recovery stages, patients who thought they had experienced few life-style changes after receiving a cardiac pacemaker reported positive feelings about living with a cardiac pacemaker. Many of the patients' problems in adjusting to a permanently implanted cardiac pacemaker and participating in its maintenance were related to a lack of accurate information about what to expect or how to assure normal functioning of the pacemaker.

Adult↗