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Items: 1 to 50 of 327

1.

Improved White Matter Cerebrovascular Reactivity after Revascularization in Patients with Steno-Occlusive Disease.

McKetton L, Venkatraghavan L, Rosen C, Mandell DM, Sam K, Sobczyk O, Poublanc J, Gray E, Crawley A, Duffin J, Fisher JA, Mikulis DJ.

AJNR Am J Neuroradiol. 2019 Jan;40(1):45-50. doi: 10.3174/ajnr.A5912. Epub 2018 Dec 20.

PMID:
30573457
2.

Mrs. Robinson's Revenge: Pete Seeger, Earl Robinson, and the Medicare Protest Song.

Duffin J, Pater JL.

Can Bull Med Hist. 2018 Fall;35(2):413-436. doi: 10.3138/cbmh.243-122017.

PMID:
30365373
3.

Mrs. Robinson's Revenge: Pete Seeger, Earl Robinson, and the Medicare Protest Song.

Duffin J, Pater JL.

Can Bull Med Hist. 2018 Oct 1:1-24. doi: 10.3138/cbmh.243-012018. [Epub ahead of print]

PMID:
30274527
4.

The effect of acute morphine on obstructive sleep apnoea: a randomised double-blind placebo-controlled crossover trial.

Rowsell L, Wong KKH, Yee BJ, Eckert DJ, Somogyi AA, Duffin J, Grunstein RR, Wang D.

Thorax. 2019 Feb;74(2):177-184. doi: 10.1136/thoraxjnl-2018-211675. Epub 2018 Aug 30.

PMID:
30166422
5.

The aging brain and cerebrovascular reactivity.

McKetton L, Sobczyk O, Duffin J, Poublanc J, Sam K, Crawley AP, Venkatraghavan L, Fisher JA, Mikulis DJ.

Neuroimage. 2018 Nov 1;181:132-141. doi: 10.1016/j.neuroimage.2018.07.007. Epub 2018 Jul 5.

PMID:
29981482
6.

Cerebrovascular Resistance: The Basis of Cerebrovascular Reactivity.

Duffin J, Sobczyk O, McKetton L, Crawley A, Poublanc J, Venkatraghavan L, Sam K, Mutch WA, Mikulis D, Fisher JA.

Front Neurosci. 2018 Jun 19;12:409. doi: 10.3389/fnins.2018.00409. eCollection 2018.

7.

Long-term changes in cerebrovascular reactivity following EC-IC bypass for intracranial steno-occlusive disease.

Rosen C, McKetton L, Russell J, Sam K, Poublanc J, Crawley A, Han JS, Sobczyk O, Duffin J, Mandell DM, Tymianski M, Fisher JA, Mikulis DJ, Venkatraghavan L.

J Clin Neurosci. 2018 Aug;54:77-82. doi: 10.1016/j.jocn.2018.06.009. Epub 2018 Jun 12.

PMID:
29907385
8.

Importance of Collateralization in Patients With Large Artery Intracranial Occlusive Disease: Long-Term Longitudinal Assessment of Cerebral Hemodynamic Function.

McKetton L, Venkatraghavan L, Poublanc J, Sobczyk O, Crawley AP, Rosen C, Silver FL, Duffin J, Fisher JA, Mikulis DJ.

Front Neurol. 2018 Apr 6;9:226. doi: 10.3389/fneur.2018.00226. eCollection 2018.

9.

Paediatric obstructive sleep apnoea: is our operative management evidence-based?

Pabla L, Duffin J, Flood L, Blackmore K.

J Laryngol Otol. 2018 Apr;132(4):293-298. doi: 10.1017/S002221511800021X. Epub 2018 Feb 21. Review.

PMID:
29463325
10.

Doctors as Stewards of medicare, or not: CAMSI, MRG, CDM, DRHC and the thin alphabet soup of physician support.

Duffin J.

Health Econ Policy Law. 2018 Jul;13(3-4):450-474. doi: 10.1017/S1744133117000470. Epub 2018 Feb 20.

PMID:
29460710
11.

Paediatric obstructive sleep apnoea: can our identification of surgical candidates be evidence-based?

Pabla L, Duffin J, Flood L, Blackmore K.

J Laryngol Otol. 2018 Apr;132(4):284-292. doi: 10.1017/S0022215118000208. Epub 2018 Feb 14. Review.

PMID:
29439747
12.

Patient-Specific Alterations in CO2 Cerebrovascular Responsiveness in Acute and Sub-Acute Sports-Related Concussion.

Mutch WAC, Ellis MJ, Ryner LN, McDonald PJ, Morissette MP, Pries P, Essig M, Mikulis DJ, Duffin J, Fisher JA.

Front Neurol. 2018 Jan 24;9:23. doi: 10.3389/fneur.2018.00023. eCollection 2018.

13.

Measurement of Cerebrovascular Reactivity as Blood Oxygen Level-Dependent Magnetic Resonance Imaging Signal Response to a Hypercapnic Stimulus in Mechanically Ventilated Patients.

Venkatraghavan L, Poublanc J, Han JS, Sobczyk O, Rozen C, Sam K, Duffin J, Mikulis DJ, Fisher JA.

J Stroke Cerebrovasc Dis. 2018 Feb;27(2):301-308. doi: 10.1016/j.jstrokecerebrovasdis.2017.08.035. Epub 2017 Sep 28.

PMID:
28967593
14.

Evaluation of Cerebrovascular Reactivity in Subjects with and without Obstructive Sleep Apnea.

Ryan CM, Battisti-Charbonney A, Sobczyk O, Mikulis DJ, Duffin J, Fisher JA, Venkatraghavan L.

J Stroke Cerebrovasc Dis. 2018 Jan;27(1):162-168. doi: 10.1016/j.jstrokecerebrovasdis.2017.08.015. Epub 2017 Sep 13.

PMID:
28918088
15.

A Novel Stress-Diathesis Model to Predict Risk of Post-operative Delirium: Implications for Intra-operative Management.

El-Gabalawy R, Patel R, Kilborn K, Blaney C, Hoban C, Ryner L, Funk D, Legaspi R, Fisher JA, Duffin J, Mikulis DJ, Mutch WAC.

Front Aging Neurosci. 2017 Aug 18;9:274. doi: 10.3389/fnagi.2017.00274. eCollection 2017.

16.

Mobile App to Streamline the Development of Wearable Sensor-Based Exercise Biofeedback Systems: System Development and Evaluation.

O'Reilly M, Duffin J, Ward T, Caulfield B.

JMIR Rehabil Assist Technol. 2017 Aug 21;4(2):e9. doi: 10.2196/rehab.7259.

17.

A non-invasive magnetic resonance imaging approach for assessment of real-time microcirculation dynamics.

Ganesh T, Estrada M, Yeger H, Duffin J, Cheng HM.

Sci Rep. 2017 Aug 7;7(1):7468. doi: 10.1038/s41598-017-06983-6.

18.

The role of vascular resistance in BOLD responses to progressive hypercapnia.

Duffin J, Sobczyk O, Crawley A, Poublanc J, Venkatraghavan L, Sam K, Mutch A, Mikulis D, Fisher J.

Hum Brain Mapp. 2017 Nov;38(11):5590-5602. doi: 10.1002/hbm.23751. Epub 2017 Aug 7.

PMID:
28782872
19.

Assessing cerebrovascular reactivity by the pattern of response to progressive hypercapnia.

Fisher JA, Sobczyk O, Crawley A, Poublanc J, Dufort P, Venkatraghavan L, Sam K, Mikulis D, Duffin J.

Hum Brain Mapp. 2017 Apr 3. doi: 10.1002/hbm.23598. [Epub ahead of print]

PMID:
28370825
20.

Hospitals of Rome in the Early Nineteenth Century: The Apostolic Visit of 1825.

Duffin J.

Can Bull Med Hist. 2016 Fall;33(2):517-553. doi: 10.3138/cbmh.33.2.163-26062015. Epub 2016 Sep 7.

PMID:
28155425
21.

High quality epitaxial graphene by hydrogen-etching of 3C-SiC(111) thin-film on Si(111).

Mondelli P, Gupta B, Betti MG, Mariani C, Duffin JL, Motta N.

Nanotechnology. 2017 Mar 17;28(11):115601. doi: 10.1088/1361-6528/aa5a48. Epub 2017 Jan 18.

PMID:
28099157
22.

The interwoven history of mercury poisoning in Ontario and Japan.

Mosa A, Duffin J.

CMAJ. 2017 Feb 6;189(5):E213-E215. doi: 10.1503/cmaj.160943. Epub 2016 Dec 5. No abstract available. Erratum in: CMAJ. 2017 Mar 27;189(12 ):E475.

23.

Cerebrovascular reactivity and white matter integrity.

Sam K, Peltenburg B, Conklin J, Sobczyk O, Poublanc J, Crawley AP, Mandell DM, Venkatraghavan L, Duffin J, Fisher JA, Black SE, Mikulis DJ.

Neurology. 2016 Nov 29;87(22):2333-2339. Epub 2016 Oct 28.

24.
25.

Vascular Dysfunction in Leukoaraiosis.

Sam K, Crawley AP, Poublanc J, Conklin J, Sobczyk O, Mandell DM, Duffin J, Venkatraghavan L, Fisher JA, Black SE, Mikulis DJ.

AJNR Am J Neuroradiol. 2016 Dec;37(12):2258-2264. Epub 2016 Aug 4.

26.

Longitudinal Brain Magnetic Resonance Imaging CO2 Stress Testing in Individual Adolescent Sports-Related Concussion Patients:‚ÄČA Pilot Study.

Mutch WA, Ellis MJ, Ryner LN, Morissette MP, Pries PJ, Dufault B, Essig M, Mikulis DJ, Duffin J, Fisher JA.

Front Neurol. 2016 Jul 8;7:107. doi: 10.3389/fneur.2016.00107. eCollection 2016.

27.

Impaired dynamic cerebrovascular response to hypercapnia predicts development of white matter hyperintensities.

Sam K, Conklin J, Holmes KR, Sobczyk O, Poublanc J, Crawley AP, Mandell DM, Venkatraghavan L, Duffin J, Fisher JA, Black SE, Mikulis DJ.

Neuroimage Clin. 2016 May 14;11:796-801. doi: 10.1016/j.nicl.2016.05.008. eCollection 2016.

28.

Development of White Matter Hyperintensity Is Preceded by Reduced Cerebrovascular Reactivity.

Sam K, Crawley AP, Conklin J, Poublanc J, Sobczyk O, Mandell DM, Venkatraghavan L, Duffin J, Fisher JA, Black SE, Mikulis DJ.

Ann Neurol. 2016 Aug;80(2):277-85. doi: 10.1002/ana.24712.

PMID:
27352039
29.

The case for an essential medicines list for Canada.

Eom G, Grootendorst P, Duffin J.

CMAJ. 2016 Dec 6;188(17-18):E499-E503. doi: 10.1503/cmaj.160134. Epub 2016 Jun 13. No abstract available.

30.

Peter Beighton on Rapa Nui (Easter Island), 1964 - 1965.

Duffin J.

S Afr Med J. 2016 May 23;106(6 Suppl 1):S21-2. doi: 10.7196/SAMJ.2016.v106i6.10984. No abstract available.

PMID:
27245517
31.

Clamping end-tidal carbon dioxide during graded exercise with control of inspired oxygen.

Farra SD, Kessler C, Duffin J, Wells GD, Jacobs I.

Respir Physiol Neurobiol. 2016 Sep;231:28-36. doi: 10.1016/j.resp.2016.05.013. Epub 2016 May 26.

PMID:
27236039
32.

Neuroimaging Assessment of Cerebrovascular Reactivity in Concussion: Current Concepts, Methodological Considerations, and Review of the Literature.

Ellis MJ, Ryner LN, Sobczyk O, Fierstra J, Mikulis DJ, Fisher JA, Duffin J, Mutch WA.

Front Neurol. 2016 Apr 29;7:61. doi: 10.3389/fneur.2016.00061. eCollection 2016. Review.

33.

T2* and T1 assessment of abdominal tissue response to graded hypoxia and hypercapnia using a controlled gas mixing circuit for small animals.

Ganesh T, Estrada M, Duffin J, Cheng HL.

J Magn Reson Imaging. 2016 Aug;44(2):305-16. doi: 10.1002/jmri.25169. Epub 2016 Feb 13.

PMID:
26872559
34.

Identifying Significant Changes in Cerebrovascular Reactivity to Carbon Dioxide.

Sobczyk O, Crawley AP, Poublanc J, Sam K, Mandell DM, Mikulis DJ, Duffin J, Fisher JA.

AJNR Am J Neuroradiol. 2016 May;37(5):818-24. doi: 10.3174/ajnr.A4679. Epub 2016 Feb 4.

35.

Sequential gas delivery provides precise control of alveolar gas exchange.

Fisher JA, Iscoe S, Duffin J.

Respir Physiol Neurobiol. 2016 May;225:60-9. doi: 10.1016/j.resp.2016.01.004. Epub 2016 Feb 1. Review.

PMID:
26840836
36.

AltitudeOmics: Resetting of Cerebrovascular CO2 Reactivity Following Acclimatization to High Altitude.

Fan JL, Subudhi AW, Duffin J, Lovering AT, Roach RC, Kayser B.

Front Physiol. 2016 Jan 8;6:394. doi: 10.3389/fphys.2015.00394. eCollection 2015.

37.

Brain magnetic resonance imaging CO2 stress testing in adolescent postconcussion syndrome.

Mutch WA, Ellis MJ, Ryner LN, Graham MR, Dufault B, Gregson B, Hall T, Bunge M, Essig M, Fisher JA, Duffin J, Mikulis DJ; Canada North Concussion Network, and; University Health Network Cerebrovascular Reactivity Research Group.

J Neurosurg. 2016 Sep;125(3):648-60. doi: 10.3171/2015.6.JNS15972. Epub 2015 Dec 18.

PMID:
26684777
38.

Relationship between retinal blood flow and arterial oxygen.

Cheng RW, Yusof F, Tsui E, Jong M, Duffin J, Flanagan JG, Fisher JA, Hudson C.

J Physiol. 2016 Feb 1;594(3):625-40. doi: 10.1113/JP271182. Epub 2015 Dec 30.

39.

Limb movement frequency is a significant modulator of the ventilatory response during submaximal cycling exercise in humans.

Caterini JE, Duffin J, Wells GD.

Respir Physiol Neurobiol. 2016 Jan;220:10-6. doi: 10.1016/j.resp.2015.09.004. Epub 2015 Sep 11.

PMID:
26369445
40.

Measuring cerebrovascular reactivity: the dynamic response to a step hypercapnic stimulus.

Poublanc J, Crawley AP, Sobczyk O, Montandon G, Sam K, Mandell DM, Dufort P, Venkatraghavan L, Duffin J, Mikulis DJ, Fisher JA.

J Cereb Blood Flow Metab. 2015 Nov;35(11):1746-56. doi: 10.1038/jcbfm.2015.114. Epub 2015 Jul 1.

41.

The dynamics of cerebrovascular reactivity shown with transfer function analysis.

Duffin J, Sobczyk O, Crawley AP, Poublanc J, Mikulis DJ, Fisher JA.

Neuroimage. 2015 Jul 1;114:207-16. doi: 10.1016/j.neuroimage.2015.04.029. Epub 2015 Apr 16.

PMID:
25891374
42.

Oxygen dissociation curves in altitude and sea-level residents.

Duffin J.

Exp Physiol. 2015 Mar;100(3):341. doi: 10.1113/EP085007. No abstract available.

43.

Rates of carbon monoxide elimination in males and females.

Zavorsky GS, Tesler J, Rucker J, Fedorko L, Duffin J, Fisher JA.

Physiol Rep. 2014 Dec 11;2(12). pii: e12237. doi: 10.14814/phy2.12237. Print 2014 Dec 1.

44.

Non-invasive measurement of cardiac output using an iterative, respiration-based method.

Klein M, Minkovich L, Machina M, Selzner M, Spetzler VN, Knaak JM, Roy D, Duffin J, Fisher JA.

Br J Anaesth. 2015 Mar;114(3):406-13. doi: 10.1093/bja/aeu377. Epub 2014 Dec 8.

45.

Making the Case for History in Medical Education.

Jones DS, Greene JA, Duffin J, Harley Warner J.

J Hist Med Allied Sci. 2015 Oct;70(4):623-52. doi: 10.1093/jhmas/jru026. Epub 2014 Nov 13.

PMID:
25395574
46.

Assessing cerebrovascular reactivity abnormality by comparison to a reference atlas.

Sobczyk O, Battisti-Charbonney A, Poublanc J, Crawley AP, Sam K, Fierstra J, Mandell DM, Mikulis DJ, Duffin J, Fisher JA.

J Cereb Blood Flow Metab. 2015 Feb;35(2):213-20. doi: 10.1038/jcbfm.2014.184. Epub 2014 Nov 12.

47.

Factors affecting the determination of cerebrovascular reactivity.

Regan RE, Fisher JA, Duffin J.

Brain Behav. 2014 Sep;4(5):775-88. doi: 10.1002/brb3.275. Epub 2014 Aug 26.

48.

Palliative Care: The Oldest Profession?

Duffin J.

Can Bull Med Hist. 2014 Fall;31(2):205-228. doi: 10.3138/cbmh.31.2.205.

PMID:
28155344
49.

Comparing the effect of hypercapnia and hypoxia on the electroencephalogram during wakefulness.

Wang D, Yee BJ, Wong KK, Kim JW, Dijk DJ, Duffin J, Grunstein RR.

Clin Neurophysiol. 2015 Jan;126(1):103-9. doi: 10.1016/j.clinph.2014.04.012. Epub 2014 May 2.

PMID:
24875233
50.

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