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111 results on '"Ahmann, Peter"'

1. Placebo-controlled evaluation of ritalin side effects

Author

Ahmann, Peter A., Waltonen, Stuart J., Olson, Kurt A., Theye, Fred W., van Erem, Alayne J., and LaPlant, Robert J.

Subjects
Ritalin (Medication) -- Adverse and side effects, Attention-deficit hyperactivity disorder -- Drug therapy, Methylphenidate hydrochloride -- Adverse and side effects
Abstract

The Barkley Side Effects Questionnaire (BSEQ) may be an effective method for monitoring side effects of Ritalin in children with attention deficit hyperactivity disorder (ADHD). ADHD is a mental disorder characterized by restlessness, easy distractibility, impatience and other types of disruptive behavior. Parents used the BSEQ to monitor 206 children with ADHD who were treated with Ritalin and with a placebo, an inactive substance, over two separate two-week periods. The incidence of certain types of side effects increased during treatment with Ritalin. These included insomnia, appetite disturbance, stomachache, headache and dizziness. Behaviors that decreased during treatment with Ritalin included staring and daydreaming, irritability, anxiety and nail biting.

Published
1993

4. Contributing Authors

Author

ADLER, STUART P., primary, AHMANN, PETER A., additional, BRANN, ALFRED W., additional, CHUTORIAN, ABE M., additional, DYKES, FRANCINE D., additional, FELTON, WARREN L., additional, GARRETTSON, LORNE K., additional, GAUS, LISA M., additional, HARBISON, JOHN W., additional, HUSSEY, ROBERT, additional, KAPLOWITZ, PAUL B., additional, KERKERING, THOMAS M., additional, LESHNER, ROBERT T., additional, MICKELL, JOHN J., additional, DOUGLAS MILLER, J., additional, MYER, EDWIN C., additional, ORRISON, WILLIAM W., additional, PAINTER, MICHAEL J., additional, PARMELEE, DEAN X., additional, PAVLAKIS, STEVEN G., additional, PELLOCK, JOHN M., additional, PUGA, WILLIAM, additional, RIZZO, WILLIAM B., additional, SCHWARTZ, JAMES F., additional, SELHORST, JOHN B., additional, SNEAD, RONALD W., additional, SOLOMON, GAIL E., additional, SUTER, CARY G., additional, TEASLEY, JEAN E., additional, TOOR, SVINDOR, additional, VANNUCCI, ROBERT C., additional, WARD, JOHN D., additional, WASIEWSKI, WARREN W., additional, and WILLIAMSON, SUSAN L., additional

Published
1993
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11. Relationship Between Pressure Passivity and Subependymal'Intraventricular Hemorrhage as Assessed by Pulsed Doppler Ultrasound.

Author

Ahmann, Peter A., Dykes, Francine D., Lazzara, Anthony, Holt, Philip J., Giddens, Don P., and Carrigan, Timothy A.

Subjects
*LASER Doppler velocimeter, *CEREBRAL circulation, *PREMATURE infant physiology, *HEMORRHAGIC disease of newborn, *PHYSIOLOGY
Abstract

Abstract. A prospective study was undertaken using a range-gated, pulsed Doppler velocimeter to study flow-pressure relationships in the anterior cerebral artery. Serial velocity and pressure studies were performed with each infant serving as his or her own control. The hypothesis tested was that ill preterm infants sustaining subependymal/intraventricular hemorrhage would have absent autoregulation. The hypothesis has been tested in 88 studies on 32 infants. Of 32 infants studied, 15 were judged to be pressure passive; nine of these children bled. The other 17 infants were not pressure passive; eight of these children bled (P > .05). From these studies, it may be concluded that the pressure passive state is not the final common link in the genesis of subependymal/intravertricular hemorrhage. Pulsed Doppler ultrasound may provide an extremely useful noninvasive technique for studing both the arterial and venous sides of the cerebral circulation. [ABSTRACT FROM AUTHOR]

Published
1983
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12. Clinical Predictability of Intraventricular Hemorrhage in Preterm Infants.

Author

Lazzara, Anthony, Ahmann, Peter, Dykes, Francine, Brann Jr., Alfred W., and Schwartz, James

Subjects
*TOMOGRAPHY, *HEMORRHAGIC disease of newborn, *NEONATAL diseases, *HEMATOCRIT
Abstract

Abstract. Ninety-eight infants of less than 35 weeks' gestation, consecutively admitted to a regional neonatal intensive care unit, were followed prior to computerized tomography (CT) scan for clinical signs of subependymal and/or intraventricular hemorrhage. The presence or absence of intracerebral hemorrhage was confirmed by CT scan in all patients, and the severity of hemorrhage was quantitated as mild, moderate, or marked. Thirty-seven out of 98 infants (38%) demonstrated intracerebral hemorrhage on CT scan; 20 of 37 (54%) were predicted clinically. Clinical predictability was related to severity of hemorrhage as quantitated by CT scan. Clinical signs that were found helpful in predicting subependymal and/ or intraventricular hemorrhage were fall in hematocrit, failure of rise in hematocrit with transfusion of packed red blood cells, tight fontanel, decrease in spontaneous activity, decreased tone, abnormal eye signs, and seizures. [ABSTRACT FROM AUTHOR]

Published
1980

15. Platelet-monoamine oxidase activity in Reye's syndrome.

Author

Faraj, Bahjat A., Newman, Stephen L., Caplan, Daniel B., Ahmann, Peter A., Kutner, Michael, Ali, Farouk M., Lindahl, Julie A., Faraj, B A, Newman, S L, Caplan, D B, Ahmann, P A, Kutner, M, Ali, F M, and Lindahl, J A

Published
1985

18. Letters to the Editor.

Author

Christoffel, Katherine K., Clark, Aleta V., Esterly, Nancy, Koval, Janice, Ruiz, Bruni, Chandler, Alma Buckner, Chacko, Donna, Elson, Sally, Aylward, Glen P., Aylward, Paul C., Young, Paul C., Volpe, Joseph J., Ahmann, Peter A., Lazzara, Anthony, Dykes, Francince, Silverboard, Gerald, Hollis, Robert E., Hallerstein, Stanley, Duggan, Eileen, and Zion, Ben

Published
1981

23. Evidence for a novel gene for familial febrile convulsions, FEB2, linked to chromosome 19p in an extended family from the Midwest.

Author

Johnson, Eric W., Dubovsky, Jan, Rich, Stephen S., O, Cormac A., Orr, Harry T., Anderson, V. Elving, Gil‐Nagel, Antonio, Ahmann, Peter, Dokken, Charles G., Schneider, Derek T., and Weber, James L.

Abstract

Shows significant evidence for linkage between the telomeric end of the human chromosome 19p and FEB2, a gene for familial febrile convulsions (FCs). Genetics of familial FCs; Seizure onset and frequency and phenotypic evaluation in the K4 family; Localization of the FEB2 gene on chromosome 19p.

Published
1998
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24. Breath Amplitude Modulation of Heart Rate Variability in Normal Full Term Neonates

Author

Dykes, Francine D, Ahmann, Peter A, Baldzer, Karin, Carrigan, Timothy A, Kitney, Richard, and Giddens, Don P

Abstract

ABSTRACT. The relationship between heart rate variability and respiration patterns was investigated using spectral analysis techniques in nine full-term infants whose ages ranged from 39-75 h. All the infants were studied during sleep, although no attempt was made to classify rapid eye movement or nonrapid eye movement states prospectively. The data obtained were examined to determine which aspects of neonatal breathing patterns are correlated with heart rate variability. Three spectral regions of heart rate variability could be identified: a very low frequency region below 0.02 Hz; a low frequency region from 0.02-0.20 Hz; and a high frequency region above 0.20 Hz. The dominant heart rate variability activity in these neonates was seen in the very low and low frequency regions, with little activity in the high frequency regions. In contrast to older infants and adults, respiration and heart rate variability were not strongly related through a high frequency region respiratory sinus arrhythmia but rather through a breath amplitude sinus arrhythmia which occurs in the low frequency region of the spectrum. The prominent very low frequency activity and the low frequency activity ascribed to breath amplitude modulation may result from autonomic nervous system mediation of chemoregulation.

Published
1986
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25. Neurologic Outcome Following Pediatric Resuscitation

Author

Davies, Cheryl R., Carrigan, Timothy, Wright, Jean A., Ahmann, Peter A., and Watson, Cynthia

Abstract

This study reports the survival rate and shortterm neurologic outcome of children who sustained cardiac arrests at Henrietta Egleston Hospital for Children, a pediatric teaching hospital. A commonly held belief in pediatric centers has been that children tolerate the insult of cardiac arrest better than adults.

Published
1987

28. Letters to the Editor

Author

Ahmann, Peter A., primary, Lazzara, Anthony, additional, Dykes, Francine, additional, and Silverboard, Gerald, additional

Published
1981
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30. Cerebral Blood Flow

Author

AHMANN, PETER A., primary, DYKES, FRANCINE D., additional, LAZZARA, ANTHONY, additional, WILCOX, W. DEAN, additional, CARRIGAN, TIMOTHY, additional, and GIDDENS, DON P., additional

Published
1983
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32. PEDIATRIC CARDIAC ARREST

Author

Wright, Jean A., primary, Ahmann, Peter A., additional, Carrigan, Timothy A., additional, Davies, Cheryl, additional, and Goncalves, Barbara A., additional

Published
1986
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48. Transient Diffuse Computed Tomographic Scan Enhancement in Multifocal Seizures

Author

Schub, Howard S., Ahmann, Peter A., Steele, J. Richard, and Hoffman, James C.

Abstract

• Previous reports have documented transient angiographic and nucleotide brain scan abnormalities in patients with focal seizures. We describe transient, diffuse cortical computed tomographic scan enhancement in a 1-year-old infant with repetitive multifocal seizures. Similar scan abnormalities may be seen in certain asphyxiated infants and occasionally in victims of child abuse. The implications of these findings are discussed.(Am J Dis Child 1981;135:799-801)

Published
1981
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