Search Results - "KEENS, T. G"

Hypercapnic Exposure in Congenital Central Hypoventilation Syndrome Reveals CNS Respiratory Control Mechanisms by Harper, R. M, Macey, P. M, Woo, M. A, Macey, K. E, Keens, T. G, Gozal, D, Alger, J. R

“…1 Department of Neurobiology, 2 Department of Radiology, 3 School of Nursing, and the 4 Brain Research Institute, University of California at Los Angeles and 5…”
Get full text

Hypoxia reveals posterior thalamic, cerebellar, midbrain, and limbic deficits in congenital central hypoventilation syndrome by Macey, P. M, Woo, M. A, Macey, K. E, Keens, T. G, Saeed, M. M, Alger, J. R, Harper, R. M

“…Departments of 1 Neurobiology and 2 Radiology and the 3 Brain Research Institute, David Geffen School of Medicine, and 4 School of Nursing, University of…”
Get full text

fMRI signal changes in response to forced expiratory loading in congenital central hypoventilation syndrome by Macey, K. E, Macey, P. M, Woo, M. A, Harper, R. K, Alger, J. R, Keens, T. G, Harper, R. M

“…1 Departments of Neurobiology and 2 Radiology, and 3 School of Nursing, University of California, Los Angeles 90095; and 4 Childrens Hospital, Los Angeles,…”
Get full text

Obstructive sleep apnea in children with down syndrome by MARCUS, C. L, KEENS, T. G, BAUTISTA, D. B, VON PECHMANN, W. S, WARD, L. D

“…Children with Down syndrome have many predisposing factors for the obstructive sleep apnea syndrome (OSAS), yet the type and severity of OSAS in this…”
Get full text

Prognosis in pediatric idiopathic pulmonary hemosiderosis by Saeed, M M, Woo, M S, MacLaughlin, E F, Margetis, M F, Keens, T G

“…Previously, IPH patients have been reported to have an average survival of 2.5 years. However, at our institution, many IPH patients have survived longer than…”
Get more information

Model-based stability assessment of ventilatory control in overweight adolescents with obstructive sleep apnea during NREM sleep by Nava-Guerra, L, Tran, W H, Chalacheva, P, Loloyan, S, Joshi, B, Keens, T G, Nayak, K S, Davidson Ward, S L, Khoo, M C K

“…Obstructive sleep apnea (OSA) involves the interplay of several different factors such as an unfavorable upper airway anatomy, deficiencies in pharyngeal…”
Get full text

Hypoxic and hypercapnic ventilatory responses in Prader-Willi syndrome by Arens, R, Gozal, D, Omlin, K J, Livingston, F R, Liu, J, Keens, T G, Ward, S L

“…Abnormalities of ventilatory control may play a significant role in the pathophysiology of sleep-disordered breathing in patients with the Prader-Willi…”
Get more information

Should children with suspected obstructive sleep apnea syndrome and normal nap sleep studies have overnight sleep studies? by Saeed, M M, Keens, T G, Stabile, M W, Bolokowicz, J, Davidson Ward, S L

“…Overnight polysomnography (ONP) is the "gold standard" for the diagnosis of sleep-disordered breathing, but it is expensive and time-consuming. Thus, daytime…”
Get more information

Determinants of aerobic and anaerobic exercise performance in cystic fibrosis by SHAH, A. R, GOZAL, D, KEENS, T. G

“…We examined aerobic and anaerobic exercise performance in 17 subjects with cystic fibrosis (CF) (age 25+/-10 [SD] yr; 47% females; FEV1 62+/-21% pred) and 17…”
Get full text

Absent peripheral chemosensitivity in Prader-Willi syndrome by Gozal, D, Arens, R, Omlin, K J, Ward, S L, Keens, T G

“…Abnormalities in ventilatory control during wakefulness and sleep have been observed in patients with Prader-Willi syndrome (PWS). The role of peripheral…”
Get more information

How many maneuvers are required to measure maximal inspiratory pressure accurately by Wen, A S, Woo, M S, Keens, T G

“…To determine whether performing more maximal inspiratory pressure (MIP) maneuvers per test provides a more accurate assessment of the true maximal inspiratory…”
Get more information

Peripheral chemoreceptor function in children with the congenital central hypoventilation syndrome by Gozal, D, Marcus, C L, Shoseyov, D, Keens, T G

“…In children with the congenital central hypoventilation syndrome (CCHS), some patients require mechanical ventilation during sleep, whereas others need…”
Get more information

Hypercapnic arousal responses in Prader-Willi syndrome by Livingston, F R, Arens, R, Bailey, S L, Keens, T G, Ward, S L

“…Prader-Willi syndrome (PWS) is characterized by a number of abnormalities of hypothalamic function, such as hyperphagia, short stature, temperature…”
Get more information

Developmental pattern of hypercapnic and hypoxic ventilatory responses from childhood to adulthood by Marcus, C L, Glomb, W B, Basinski, D J, Davidson, S L, Keens, T G

“…The developmental pattern of ventilatory responses, through childhood and puberty into adulthood, is not known. Therefore we studied hypercapnic (HCVR) and…”
Get more information

Clinically unsuspected hypoxia during sleep and feeding in infants with bronchopulmonary dysplasia by GARG, M, KURZNER, S. I, BAUTISTA, D. B, KEENS, T. G

“…Infants with bronchopulmonary dysplasia have a high incidence of sudden, unexplained death in the postneonatal period; yet the cause of these deaths is…”
Get full text

Ventilatory response to consecutive short hypercapnic challenges in children with obstructive sleep apnea by Gozal, D, Arens, R, Omlin, K J, Ben-Ari, J H, Aljadeff, G, Harper, R M, Keens, T G

“…In healthy adults, a ventilatory pattern characterized by progressively increased tidal volume (VT), and decreased respiratory rate (RR) accompany repeated…”
Get more information

Obstacles to discharge of ventilator-assisted children from the hospital to home by DeWitt, P K, Jansen, M T, Ward, S L, Keens, T G

“…Home care for ventilatory-assisted children improves psychosocial development and reduces medical costs compared with hospital care; yet, many…”
Get more information

Frequency, causes, and outcome of home ventilator failure by Srinivasan, S, Doty, S M, White, T R, Segura, V H, Jansen, M T, Davidson Ward, S L, Keens, T G

“…The safety of home ventilators has been questioned. We collected data to study the following: frequency of home ventilator failure, apparent causes for the…”
Get more information

Effects of overnight supplemental oxygen in obstructive sleep apnea in children by Aljadeff, G, Gozal, D, Bailey-Wahl, S L, Burrell, B, Keens, T G, Ward, S L

“…Supplemental oxygen during sleep may be useful as a temporary palliative treatment in children with obstructive sleep apnea syndrome (OSAS) associated with…”
Get more information

Hypoxic arousal responses in normal infants by DAVIDSON WARD, S. L, BAUTISTA, D. B, KEENS, T. G

“…Failure to arouse in response to hypoxia has been described in infants at increased risk for sudden infant death syndrome (SIDS) and has been suggested as a…”
Get full text