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Papers authored by Richards HK

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Efficacy of antibiotic-impregnated shunt catheters in reducing shunt infection: data from the United Kingdom Shunt Registry.

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Richards HK, Seeley HM, and Pickard JD

Journal of neurosurgery. Pediatrics 4(4):389-93, 2009 Oct - Who cited this? | PubMed ID: 19795972 | Fulltext

Use of drains versus no drains after burr-hole evacuation of chronic subdural haematoma: a randomised controlled trial.

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Santarius T, Kirkpatrick PJ, Ganesan D, Chia HL, Jalloh I, Smielewski P, Richards HK, Marcus H, Parker RA, Price SJ, Kirollos RW, Pickard JD, and Hutchinson PJ

Lancet 374(9695):1067-73, 2009 Sep 26 - Who cited this? | PubMed ID: 19782872 | Fulltext

Acute systemic erythropoietin therapy to reduce delayed ischemic deficits following aneurysmal subarachnoid hemorrhage: a Phase II randomized, double-blind, placebo-controlled trial.

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Tseng MY, Hutchinson PJ, Richards HK, Czosnyka M, Pickard JD, Erber WN, Brown S, and Kirkpatrick PJ

Journal of neurosurgery 111(1):171-80, 2009 Jul - Who cited this? | PubMed ID: 19344224 | Fulltext

Critical closing pressure: comparison of three methods.

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López-Magaña JA, Richards HK, Radolovich DK, Kim DJ, Smielewski P, Kirkpatrick PJ, Pickard JD, and Czosnyka M

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 29(5):987-93, 2009 May - Who cited this? | PubMed ID: 19293823 | Fulltext

Modelling human drug abuse and addiction with dedicated small animal positron emission tomography.

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Dalley JW, Fryer TD, Aigbirhio FI, Brichard L, Richards HK, Hong YT, Baron JC, Everitt BJ, and Robbins TW

Neuropharmacology 56 Suppl 1:9-17, 2009 - Who cited this? | PubMed ID: 18614184 | Fulltext

Statin Use Was not Associated with Less Vasospasm or Improved Outcome after Subarachnoid Hemorrhage.

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Tseng MY, Hutchinson PJ, Turner CL, Czosnyka M, Richards HK, Pickard JD, and Kirkpatrick PJ

Neurosurgery 63(6):E1209, 2008 Dec - Who cited this? | PubMed ID: 19057289 | Fulltext

Magnetic field interactions in adjustable hydrocephalus shunts.

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Lavinio A, Harding S, Van Der Boogaard F, Czosnyka M, Smielewski P, Richards HK, Pickard JD, and Czosnyka ZH

Journal of neurosurgery. Pediatrics 2(3):222-8, 2008 Sep - Who cited this? | PubMed ID: 18759607 | Fulltext

Investigation of the hydrodynamic properties of a new MRI-resistant programmable hydrocephalus shunt.

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Allin DM, Czosnyka M, Richards HK, Pickard JD, and Czosnyka ZH

Cerebrospinal fluid research 5:8, 2008 - Who cited this? | PubMed ID: 18426562 | Fulltext

Strategy for improved [(11)C]DAA1106 radiosynthesis and in vivo peripheral benzodiazepine receptor imaging using microPET, evaluation of [(11)C]DAA1106.

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Probst KC, Izquierdo D, Bird JL, Brichard L, Franck D, Davies JR, Fryer TD, Richards HK, Clark JC, Davenport AP, Weissberg PL, and Warburton EA

Nuclear medicine and biology 34(4):439-46, 2007 May - Who cited this? | PubMed ID: 17499734 | Fulltext

Nucleus accumbens D2/3 receptors predict trait impulsivity and cocaine reinforcement.

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Dalley JW, Fryer TD, Brichard L, Robinson ES, Theobald DE, Lääne K, Peña Y, Murphy ER, Shah Y, Probst K, Abakumova I, Aigbirhio FI, Richards HK, Hong Y, Baron JC, Everitt BJ,

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Science (New York, N.Y.) 315(5816):1267-70, 2007 Mar 2 - Who cited this? | PubMed ID: 17332411 | Fulltext

Laboratory study on "intracranial hypotension" created by pumping the chamber of a hydrocephalus shunt.

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Bromby A, Czosnyka Z, Allin D, Richards HK, Pickard JD, and Czosnyka M

Cerebrospinal fluid research 4:2, 2007 - Who cited this? | PubMed ID: 17386089 | Fulltext

Imaging endothelin ET(B) receptors using [18F]-BQ3020: in vitro characterization and positron emission tomography (microPET).

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Johnström P, Rudd JH, Richards HK, Fryer TD, Clark JC, Weissberg PL, Pickard JD, and Davenport AP

Experimental biology and medicine (Maywood, N.J.) 231(6):736-40, 2006 Jun - Who cited this? | PubMed ID: 16740990 | Fulltext

In vitro hydrodynamic properties of the Miethke ProGAV hydrocephalus shunt.

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Allin DM, Czosnyka ZH, Czosnyka M, Richards HK, and Pickard JD

Cerebrospinal fluid research 3:9, 2006 - Who cited this? | PubMed ID: 16808836 | Fulltext

Positron emission tomography using 18F-labelled endothelin-1 reveals prevention of binding to cardiac receptors owing to tissue-specific clearance by ET B receptors in vivo.

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Johnström P, Fryer TD, Richards HK, Harris NG, Barret O, Clark JC, Pickard JD, and Davenport AP

British journal of pharmacology 144(1):115-22, 2005 Jan - Who cited this? | PubMed ID: 15644875 | Fulltext

Dynamic in vivo imaging of receptors in small animals using positron emission tomography.

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Johnström P, Fryer TD, Richards HK, Barret O, and Davenport AP

Methods in molecular biology (Clifton, N.J.) 306:217-32, 2005 - Who cited this? | PubMed ID: 15867471 | Fulltext

Evaluation of three new models of hydrocephalus shunts.

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Czosnyka ZH, Czosnyka M, Richards HK, and Pickard JD

Acta neurochirurgica. Supplement 95:223-7, 2005 - Who cited this? | PubMed ID: 16463854 | Fulltext

Normal-pressure hydrocephalus.

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Czosnyka M, Richards HK, Czosnyka Z, and Pickard JD

Journal of neurosurgery 101(6):1083-4; author reply 1084, 2004 Dec - Who cited this? | PubMed ID: 15597776 | Fulltext

In vivo imaging of cardiovascular endothelin receptors using the novel radiolabelled antagonist [18F]-SB209670 and positron emission tomography (microPET).

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Johnström P, Fryer TD, Richards HK, Barret O, Clark JC, Ohlstein EH, Pickard JD, and Davenport AP

Journal of cardiovascular pharmacology 44 Suppl 1:S34-8, 2004 Nov - Who cited this? | PubMed ID: 15838315 | Fulltext

Relationship between flow-metabolism uncoupling and evolving axonal injury after experimental traumatic brain injury.

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Chen SF, Richards HK, Smielewski P, Johnström P, Salvador R, Pickard JD, and Harris NG

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 24(9):1025-36, 2004 Sep - Who cited this? | PubMed ID: 15356423 | Fulltext

Hydrodynamic properties of extraventricular drainage systems.

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Czosnyka M, Czosnyka ZH, Richards HK, and Pickard JD

Neurosurgery 52(3):619-23; discussion 623, 2003 Mar - Who cited this? | PubMed ID: 12590687 | Fulltext

A prospective study of discordance in diagnosis of osteoporosis using spine and proximal femur bone densitometry.

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O'Gradaigh D, Debiram I, Love S, Richards HK, and Compston JE

Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA 14(1):13-8, 2003 Jan - Who cited this? | PubMed ID: 12577180 | Fulltext

Laboratory testing of hydrocephalus shunts -- conclusion of the U.K. Shunt evaluation programme.

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Czosnyka Z, Czosnyka M, Richards HK, and Pickard JD

Acta neurochirurgica 144(6):525-38; discussion 538, 2002 Jun - Who cited this? | PubMed ID: 12111485 | Fulltext

Transcranial Doppler identification of changing autoregulatory thresholds after autoregulatory impairment.

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Czosnyka M and Richards HK

Neurosurgery 49(6):1484-5, 2001 Dec - Who cited this? | PubMed ID: 11859831 | Fulltext

Cerebral venous blood outflow: a theoretical model based on laboratory simulation.

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Piechnik SK, Czosnyka M, Richards HK, Whitfield PC, and Pickard JD

Neurosurgery 49(5):1214-22; discussion 1222-3, 2001 Nov - Who cited this? | PubMed ID: 11846915 | Fulltext

Uncoupling of cerebral blood flow and metabolism after cerebral contusion in the rat.

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Richards HK, Simac S, Piechnik S, and Pickard JD

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 21(7):779-81, 2001 Jul - Who cited this? | PubMed ID: 11435789 | Fulltext

Laboratory evaluation of the phoenix CRx diamond valve.

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Czosnyka ZH, Czosnyka M, Richards HK, and Pickard JD

Neurosurgery 48(3):689-93; discussion 693-4, 2001 Mar - Who cited this? | PubMed ID: 11270563 | Fulltext

Principles of quality management in medicine: the British concept.

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Pickard JD and Richards HK

Acta neurochirurgica. Supplement 78:45-52, 2001 - Who cited this? | PubMed ID: 11840730 | Fulltext

A clinical audit of the Hakim programmable valve in patients with complex hydrocephalus.

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Kay AD, Fisher AJ, O'Kane C, Richards HK, Pickard JD, and United Kingdom and Ireland Medos Shunt Audit Group

British journal of neurosurgery 14(6):535-42, 2000 Dec - Who cited this? | PubMed ID: 11272031 | Fulltext

Clinical cerebral microdialysis: a methodological study.

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Hutchinson PJ, O'Connell MT, Al-Rawi PG, Maskell LB, Kett-White R, Gupta AK, Richards HK, Hutchinson DB, Kirkpatrick PJ, and Pickard JD

Journal of neurosurgery 93(1):37-43, 2000 Jul - Who cited this? | PubMed ID: 10883903 | Fulltext

Vascular components of cerebrospinal fluid compensation.

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Czosnyka M, Richards HK, Czosnyka Z, Piechnik S, Pickard JD, and Chir M

Journal of neurosurgery 90(4):752-9, 1999 Apr - Who cited this? | PubMed ID: 10193621 | Fulltext

Assessment of critical closing pressure in the cerebral circulation as a measure of cerebrovascular tone.

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Richards HK, Czosnyka M, and Pickard JD

Acta neurochirurgica 141(11):1221-7 discussion 1226-7, 1999 - Who cited this? | PubMed ID: 10592124 | Fulltext

Posture-related overdrainage: comparison of the performance of 10 hydrocephalus shunts in vitro.

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Czosnyka Z, Czosnyka M, Richards HK, and Pickard JD

Neurosurgery 42(2):327-33; discussion 333-4, 1998 Feb - Who cited this? | PubMed ID: 9482183 | Fulltext

Increase in transcranial Doppler pulsatility index does not indicate the lower limit of cerebral autoregulation.

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Richards HK, Czosnyka M, Whitehouse H, and Pickard JD

Acta neurochirurgica. Supplement 71:229-32, 1998 - Who cited this? | PubMed ID: 9779192 | Fulltext

Contribution of mathematical modelling to the interpretation of bedside tests of cerebrovascular autoregulation.

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Czosnyka M, Piechnik S, Richards HK, Kirkpatrick P, Smielewski P, and Pickard JD

Journal of neurology, neurosurgery, and psychiatry 63(6):721-31, 1997 Dec - Who cited this? | PubMed ID: 9416805 | Fulltext

Changes in transcranial Doppler flow velocity waveform following inhibition of nitric oxide synthesis. Experimental study in anaesthetised rabbits.

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Richards HK, Kozniewska E, Czosnyka M, and Pickard JD

Acta neurochirurgica 139(1):63-9; discussion 69-70, 1997 - Who cited this? | PubMed ID: 9059714 | Fulltext

Relationship between transcranial Doppler-determined pulsatility index and cerebrovascular resistance: an experimental study.

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Czosnyka M, Richards HK, Whitehouse HE, and Pickard JD

Journal of neurosurgery 84(1):79-84, 1996 Jan - Who cited this? | PubMed ID: 8613840 | Fulltext

Uncoupling of LCBF and LCGU in two different models of hydrocephalus: a review.

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Richards HK, Bucknall RM, Jones HC, and Pickard JD

Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery 11(5):288-92, 1995 May - Who cited this? | PubMed ID: 7648570 | Fulltext

Early metabolic changes during m-Dinitrobenzene neurotoxicity and the possible role of oxidative stress.

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Romero IA, Lister T, Richards HK, Seville MP, Wylie SP, and Ray DE

Free radical biology & medicine 18(2):311-9, 1995 Feb - Who cited this? | PubMed ID: 7744316 | Fulltext

Estimation of laser-Doppler flux biological zero using basilar artery flow velocity in the rabbit.

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Richards HK, Czosnyka M, Kirkpatrick PJ, and Pickard JD

The American journal of physiology 268(1 Pt 2):H213-7, 1995 Jan - Who cited this? | PubMed ID: 7840265 | Fulltext

Changes in neuronal metabolism in hypothalamic periventricular regions following acute alteration of cerebrospinal fluid composition in conscious rats.

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Wells T, Achaaban MR, Richards HK, and Forsling ML

Neuroscience letters 165(1-2):93-6, 1994 Jan 3 - Who cited this? | PubMed ID: 8015745 | Fulltext

Local cerebral blood flow in rats with congenital hydrocephalus.

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Jones HC, Richards HK, Bucknall RM, and Pickard JD

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 13(3):531-4, 1993 May - Who cited this? | PubMed ID: 8478411 | Fulltext

Functional/metabolic modulation of the brain stem lesions caused by 1,3-dinitrobenzene in the rat.

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Ray DE, Brown AW, Cavanagh JB, Nolan CC, Richards HK, and Wylie SP

Neurotoxicology 13(2):379-88, 1992 - Who cited this? | PubMed ID: 1436756 | Fulltext

Blood flow in portal systems with special reference to the rat pituitary gland.

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Lees PD, Lynch DT, Richards HK, Lovick AH, Perry S, and Pickard JD

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 12(1):128-38, 1992 Jan - Who cited this? | PubMed ID: 1727134 | Fulltext

Directional and compartmentalised drainage of interstitial fluid and cerebrospinal fluid from the rat brain.

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Zhang ET, Richards HK, Kida S, and Weller RO

Acta neuropathologica 83(3):233-9, 1992 - Who cited this? | PubMed ID: 1373020 | Fulltext

Plasma active and acid-activatable renin during the development of one-kidney, one-clip and two-kidney, one-clip hypertension in the rabbit.

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Noble AR and Richards HK

Canadian journal of physiology and pharmacology 69(9):1375-80, 1991 Sep - Who cited this? | PubMed ID: 1756441 | Fulltext

Cerebral blood flow in the anaesthetized immature sheep fetus and the response to hypercapnia.

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Habgood MD, Jones SE, Maroni JM, Pickard JD, Richards HK, and Saunders NR

Experimental physiology 76(4):495-505, 1991 Jul - Who cited this? | PubMed ID: 1910757 | Fulltext

The uptake of [14C]deoxyglucose into brain of young rats with inherited hydrocephalus.

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Richards HK, Bucknall RM, Jones HC, and Pickard JD

Experimental neurology 103(2):194-8, 1989 Feb - Who cited this? | PubMed ID: 2912763 | Fulltext

Temporary blood flow stasis with degradable starch microspheres (DSM) for liver metastases in a rat model.

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Flowerdew AD, Richards HK, and Taylor I

Gut 28(10):1201-7, 1987 Oct - Who cited this? | PubMed ID: 3678948 | Fulltext

A modification of the method for the measurement of cerebral blood flow using [14C]iodoantipyrine in small animals.

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Richards HK, Lovick AH, and Pickard JD

Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 7(1):124-6, 1987 Feb - Who cited this? | PubMed ID: 3805160 | Fulltext

Local cerebral glucose utilisation in experimental chronic hydrocephalus in the rat.

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Richards HK, Pickard JD, and Punt J

Zeitschrift fur Kinderchirurgie : organ der Deutschen, der Schweizerischen und der Osterreichischen Gesellschaft fur Kinderchirurgie = Surgery in infancy and childhood 40 Suppl 1:9, 1985 Dec - Who cited this? | PubMed ID: 3841440 | Fulltext

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Papers authored by Richards HK

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