Search Results - "Penning, D H"

Extracellular glutamate levels and neuropathology in cerebral white matter following repeated umbilical cord occlusion in the near term fetal sheep by Loeliger, M, Watson, C.S, Reynolds, J.D, Penning, D.H, Harding, R, Bocking, A.D, Rees, S.M

“…Umbilical cord occlusion causes fetal hypoxemia which can result in brain injury including damage to cerebral white matter. Excessive glutamate release may be…”
Get full text

Variation in caregiver perceptions of teamwork climate in labor and delivery units by Sexton, J B, Holzmueller, C G, Pronovost, P J, Thomas, E J, McFerran, S, Nunes, J, Thompson, D A, Knight, A P, Penning, D H, Fox, H E

“…To test the psychometric soundness of a teamwork climate survey in labor and delivery, examine differences in perceptions of teamwork, and provide benchmarking…”
Get full text

Does early administration of epidural analgesia affect obstetric outcome in nulliparous women who are in spontaneous labor? by Chestnut, D H, McGrath, J M, Vincent, Jr, R D, Penning, D H, Choi, W W, Bates, J N, McFarlane, C

“…Some studies suggest that epidural analgesia prolongs labor and increases the incidence of cesarean section, especially if it is administered before 5 cm…”
Get full text

Antenatal corticosteroids: is more better? by Smith, GN, Kingdom, JC, Penning, DH, Matthews, SG

“…A Cochrane systemic review indicates that a single antenatal course of corticosteroids reduces the occurrence of respiratory distress syndrome,…”
Get full text

An evaluation of the effect of anesthetic technique on reproductive success after laparoscopic pronuclear stage transfer : propofol/nitrous oxide versus isoflurane/nitrous oxide by VINCENT, R. D, SYROP, C. H, VAN VORRHIS, B. J, CHESTNUT, D. H, SPARKS, A. E. T, MCGRATH, J. M, CHOI, W. W, BATES, J. N, PENNING, D. H

“…Laparoscopic pronuclear stage transfer (PROST) is the preferred method of embryo transfer after in vitro fertilization in many infertility programs. There are…”
Get full text

How much labor is in a labor epidural? Manpower cost and reimbursement for an Obstetric analgesia service in a teaching institution by BELL, E. D, PENNING, D. H, COUSINEAU, E. F, WHITE, W. D, HARTLE, A. J, GILBERT, W. C, LUBARSKY, D. A

“…Some anesthesiologists avoid provision of obstetric analgesia services (OAS) because of low reimbursement rates for the work involved. This study defines the…”
Get full text

Glutamate release from the ovine fetal brain during maternal hemorrhage : a study using chronic in utero cerebral microdialysis by PENNING, D. H, CHESTNUT, D. H, DEXTER, F, HRDY, J, PODUSKA, D, ATKINS, B

“…Glutamate has been implicated in the pathophysiology of neuronal injury associated with cerebral hypoxia-ischemia. A model using chronic in utero microdialysis…”
Get full text

Neuropathology of the near-term and midgestation ovine fetal brain after sustained in utero hypoxemia by Penning, Donald H., Grafe, Marjorie R., Hammond, Robert, Matsuda, Yoshio, Patrick, John, Richardson, Bryan

“…OBJECTIVE: The neuropathologic mechanisms of the ovine fetal brain in response to several hours of sustained hypoxemia with variable degrees of metabolic…”
Get full text

Magnesium Sulfate Adversely Affects Fetal Lamb Survival and Blocks Fetal Cerebral Blood Flow Response During Maternal Hemorrhage by Reynolds, James D., Chestnut, David H., Dexter, Franklin, McGrath, Joan, Penning, Donald H.

“…Magnesium sulfate is commonly used in high-risk pregnancies, even though its actions in the fetus during maternal/fetal stress are not completely understood…”
Get full text

Dose-dependent effects of acute in vivo ethanol exposure on extracellular glutamate concentration in the cerebral cortex of the near-term fetal sheep by Reynolds, J D, Penning, D H, Dexter, F, Atkins, B, Hrdy, J, Poduska, D, Chestnut, D H, Brien, J F

“…The cerebral cortex is a target site of ethanol teratogenesis. L-Glutamate is a major excitatory neurotransmitter that plays an important neurotrophic role in…”
Get more information

Flumazenil does not affect the increase in rat hippocampal extracellular glutamate concentration produced during thioacetamide-induced hepatic encephalopathy by MCARDLE, P, PENNING, D. H, DEXTER, F, REYNOLDS, J. D

“…Hepatic encephalopathy (HE) is a neuropsychiatric disorder that often occurs as a consequence of acute or chronic liver failure. Previous reports have…”
Get full text

Ethanol increases uterine blood flow and fetal arterial blood oxygen tension in the near-term pregnant ewe by Reynolds, James D., Penning, Donald H., Dexter, Franklin, Atkins, Barry, Hrdy, Jim, Poduska, Dan, Brien, James F.

“…Fetal hypoxia is a hypothesized mechanism of ethanol teratogenesis. The objective of this study was to test this hypothesis by determining the effects of…”
Get full text

Ethanol-Induced Changes in Prostaglandin E Concentration in the Intact Cerebral Cortex of Preterm and Near-term Fetal Sheep by Reynolds, James D., Penning, Donald H., Kimura, Karen A., Dexter, Franklin, Henderson, Janice L., Atkins, Barry, Poduska, Daniel, Brien, James F.

“…Ethanol‐induced changes in fetal prostaglandin E (PGE) concentration may play a role in the toxic effects of prenatal ethanol exposure. Using the novel…”
Get full text

Bolus Maternal Cocaine Administration Does Not Produce a Large Increase in Fetal Sheep Cerebral Cortical Glutamate Concentration by Penning, Donald H, Dexter, Franklin, Henderson, Janice L, Chestnut, David H, Reynolds, James D

“…Human cocaine use during pregnancy may result in postnatal neurologic dysfunction and abnormal behavior. l-Glutamate, the major excitatory neurotransmitter in…”
Get full text

Epidural analgesia in parturients with previous spinal irradiation by HILTON, A. B. R, LOCKHART, E. M, PENNING, D. H

“…To present two successful cases of labour analgesia in patients who had been treated with radiation to the lumbar spine for neuroblastomas and to discuss the…”
Get full text

Effect of exposure in vitro to ethanol and hypoxia on gamma-aminobutyric acid efflux in the hippocampus of the fetal and adult guinea-pig by Catlin, M C, Penning, D H, Brien, J F

“…The objective of this study was to determine the effects of acute direct exposure to ethanol, hypoxia or ethanol plus hypoxia on K+-stimulated…”
Get more information

Use of an automated anesthesia information system to determine reference limits for vital signs during cesarean section by DEXTER, F, PENNING, D. H, LUBARSKY, D. A, DELONG, E, SANDERSON, L, GILBERT, B. C, BELL, E, REVES, J. G

“…We evaluated whether automated anesthesia information systems can be used to calculate reference limits (population-based "normal values") for vital signs. We…”
Get full text

Effect of hypoxia on glutamate efflux and synaptic transmission in the guinea pig hippocampus by Penning, D H, Goh, J W, el-Beheiry, H, Brien, J F

“…Simultaneous assessment of synaptic activity and glutamate efflux in guinea pig hippocampal brain slices was made before, during and after a 10-min period of…”
Get more information

Management of a parturient with an uncorrected atrioventricular canal defect by Goldsmith, R.J., Henderson, J.L., Reynolds, J.D., Penning, D.H.

“…A 24-year-old woman at 37 weeks gestation, with an uncorrected atrioventricular canal defect and incipient congestive heart failure is presented. This rare…”
Get full text

Obstetrical analgesia in a parturient with antithrombin III deficiency by PATTEE, C. L, PENNING, D. H

“…Antithrombin III (AT III) deficiency is a rare inherited disorder which predisposes patients to thrombotic complications. Anticoagulation is necessary to…”
Get full text