Faculty Rank: Associate Professor
Medical or Graduate Education:
Federal University of Rio Grande do Sul, Brazil
State University of New York at Buffalo - Neurological Surgery
State University of New York at Buffalo - Endovascular Neurosurgery
Carotid endarterectomy and stenting
Magnetic navigation system surgery
Transient ischemic attack
Minimally invasive treatment of vascular disease
University Neurosurgery Professional Building 1725 W. Harrison St. Suite 855 Chicago, IL 60612 Phone: (312) 942-6644 Fax: (312) 942-2176
View Larger Map • Driving Directions
Below is a list of scientific publications for which this practitioner was either the primary author or a contributor. Citations come from PubMed, a database of biomedical literature, life science journals and online books. PubMed is a service of the US Library of Medicine at the National Institutes of Health. Click on the title of the cited work for more information (this will take you directly to PubMed.gov). Listings go back five years.
High Cervical Spinal Subdural Hemorrhage as a Harbinger of Craniocervical Arteriovenous Fistula - An Unusual Clinical Presentation. Kasliwal MK, Moftakhar R, O'Toole JE, Lopes DK Spine J 2015 Feb 25 :. Persistent aneurysm growth following pipeline embolization device assisted coiling of a fusiform vertebral artery aneurysm: a word of caution! Kerolus M, Kasliwal MK, Lopes DK Neurointervention 2015 Feb 10(1):28-33. Utilization of Pipeline embolization device for treatment of ruptured intracranial aneurysms: US multicenter experience. Lin N, Brouillard AM, Keigher KM, Lopes DK, Binning MJ, Liebman KM, Veznedaroglu E, Magarik JA, Mocco J, Duckworth EA, Arthur AS, Ringer AJ, Snyder KV, Levy EI, Siddiqui AH J Neurointerv Surg 2014 Sep 17 :. Delayed Vascular Claudication Following Diagnostic Cerebral Angiography: A Rare Complication of the AngioSeal Arteriotomy Closure Device. Corley JA, Kasliwal MK, Tan LA, Lopes DK J Cerebrovasc Endovasc Neurosurg 2014 Sep 16(3):275-80. Successful mechanical thrombectomy in a 2-year-old male through a 4-French guide catheter. Stidd DA, Lopes DK Neurointervention 2014 Sep 9(2):94-100. "Contrast-less" stent-assisted coiling of an A1 aneurysm. Munich SA, Theessen H, Johnson AK, Lopes DK J Stroke Cerebrovasc Dis 2014 Oct 23(9):2283-6. The Pipeline Embolization Device for the treatment of posterior circulation fusiform aneurysms: lessons learned at a single institution. Munich SA, Tan LA, Keigher KM, Chen M, Moftakhar R, Lopes DK J. Neurosurg. 2014 Nov 121(5):1077-84. Recovery of pituitary function following treatment of an unruptured giant cavernous carotid aneurysm using Surpass flow-diverting stents. Tan LA, Sandler V, Todorova-Koteva K, Levine L, Lopes DK, Moftakhar R J Neurointerv Surg 2014 May 8 Current utility of diagnostic catheter cerebral angiography. Sawiris N, Venizelos A, Ouyang B, Lopes D, Chen M J Stroke Cerebrovasc Dis 2014 Mar 23(3):e145-50. Long-term radiographic results of stent-assisted embolization of cerebral aneurysms. Lopes DK, Johnson AK, Kellogg RG, Heiferman DM, Keigher KM Neurosurgery 2014 Mar 74(3):286-91. Symptomatic Cerebral Air Embolism During Stent-assisted Coiling of an Unruptured Middle Cerebral Artery Aneurysm: Intraoperative Diagnosis and Management of a Rare Complication. Tan LA, Keigher KM, Lopes DK J Cerebrovasc Endovasc Neurosurg 2014 Jun 16(2):93-7. Ultrasound-guided posterolateral approach for midline calcified thoracic disc herniation. Tan LA, Lopes DK, Fontes RB J Korean Neurosurg Soc 2014 Jun 55(6):383-6. Feasibility and Safety of Pipeline Embolization Device in Patients with Ruptured Carotid Blister Aneurysms. Yoon JW, Siddiqui AH, Dumont TM, Levy EI, Hopkins LN, Lanzino G, Lopes DK, Moftakhar R, Billingsley JT, Welch BG, Boulos AS, Yamamoto J, Tawk RG, Ringer AJ, Hanel RA, Neurosurgery 2014 Jul 3 Outcome following intracranial hemorrhage associated with novel oral anticoagulants. Kasliwal MK, Panos NG, Munoz LF, Moftakhar R, Lopes DK, Byrne RW J Clin Neurosci 2014 Jul 24 Frameless neuronavigation based only on 3D digital subtraction angiography using surface-based facial registration. Stidd DA, Wewel J, Ghods AJ, Munich S, Serici A, Keigher KM, Theessen H, Moftakhar R, Lopes DK J. Neurosurg. 2014 Jul 18 :1-6. Y-stent-assisted coil embolization of cerebral aneurysms. Tan LA, Johnson AK, Keigher KM, Moftakhar R, Lopes DK Neurosurg Focus 2014 Jul 37(1 Suppl):1. Endovascular transarterial embolization of cerebral arteriovenous malformation with ethylene-vinyl alcohol copolymer. Tan LA, Johnson AK, Keigher KM, Moftakhar R, Lopes DK Neurosurg Focus 2014 Jul 37(1 Suppl):1. Endovascular treatment of acute ischemic stroke: the end or just the beginning? Mokin M, Khalessi AA, Mocco J, Lanzino G, Dumont TM, Hanel RA, Lopes DK, Fessler RD, Ringer AJ, Bendok BR, Veznedaroglu E, Siddiqui AH, Hopkins LN, Levy EI Neurosurg Focus 2014 Jan 36(1):E5. The "Spot Sign" secondary to a ruptured lenticulostriate artery aneurysm. Tan LA, Kasliwal MK, Johnson AK, Lopes DK Clin Imaging 2014 Feb 28 Thromboembolic complications with Pipeline Embolization Device placement: impact of procedure time, number of stents and pre-procedure P2Y12 reaction unit (PRU) value. Tan LA, Keigher KM, Munich SA, Moftakhar R, Lopes DK J Neurointerv Surg 2014 Feb 19 Manual Aspiration Technique to Retrieve a Prematurely Detached Coil during Cerebral Aneurysm Embolization. Stidd DA, Johnson AK, Lopes DK Neurointervention 2014 Feb 9(1):21-5. Aneurysm coil embolization using a 1.5-fr distal outer diameter microcatheter. Stidd DA, Lopes DK, Chen M Neurointervention 2014 Feb 9(1):39-44. Recovery of pituitary function following treatment of an unruptured giant cavernous carotid aneurysm using Surpass flow-diverting stents. Tan LA, Sandler V, Todorova-Koteva K, Levine L, Lopes DK, Moftakhar R BMJ Case Rep 2014 2014:. Recanalization of acute carotid stent occlusion using Penumbra 4Max aspiration catheter: technical report and review of rescue strategies for acute carotid stent occlusion. Munich S, Moftakhar R, Lopes D J Neurointerv Surg 2013 Oct 22 Treatment of a ruptured vertebrobasilar fusiform aneurysm using pipeline embolization device. Tan LA, Moftakhar R, Lopes DK. J Cerebrovasc Endovasc Neurosurg. 2013 2013 Mar 15(1):30-3. doi: 10.7461/jcen.2013.15.1.30. Epub 2013 Mar 31. Progressive Deconstruction: A Novel Aneurysm Treatment Using the Pipeline Embolization Device for Competitive Flow Diversion. Wajnberg E, Silva TS, Johnson AK, Lopes DK Neurosurgery 2013 Jun 19 Endovascular repair of a double-lumen dissecting aneurysm. Johnson AK, Gerard CS, Lopes DK J Neurointerv Surg 2013 Jun 12 Solitaire Flow Restoration Thrombectomy for Acute Ischemic Stroke: Retrospective Multicenter Analysis of Early Postmarket Experience After FDA Approval. Mokin M, Dumont TM, Veznedaroglu E, Binning MJ, Liebman KM, Fessler RD 2nd, To CY, Turner RD 4th, Turk AS, Chaudry MI, Arthur AS, Fox BD, Hanel RA, Tawk RG, Kan P, Gaughen JR Jr, Lanzino G, Lopes DK, Chen M, Moftakhar R, Billingsley JT, Ringer AJ, et al. Neurosurgery. 2013 2013 Jul 73(1):19-26. Stent-assisted embolization of 100 middle cerebral artery aneurysms. Johnson AK, Heiferman DM, Lopes DK. J Neurosurg. 2013 2013 Feb 8. [Epub ahead of print] Solitaire FR Thrombectomy for Acute Ischemic Stroke: Retrospective Multicenter Analysis of Early Postmarket Experience after FDA Approval. Mokin M, Dumont TM, Veznedaroglu E, Binning MJ, Liebman KM, Fessler RD 2nd, To CY, Turner RD 4th, Turk AS, Chaudry MI, Arthur AS, Fox BD, Hanel RA, Tawk RG, Kan P, Gaughen JR Jr, Lanzino G, Lopes DK, Chen M, Moftakhar R, Billingsley JT, Ringer AJ, et al. Neurosurgery. 2013 2013 Feb 25. [Epub ahead of print] Pipeline for Uncoilable or Failed Aneurysms: Results from a Multicenter Clinical Trial. Becske T, Kallmes DF, Saatci I, McDougall CG, Szikora I, Lanzino G, Moran CJ, Woo HH, Lopes DK, Berez AL, Cher DJ, Siddiqui AH, Levy EI, Albuquerque FC, Fiorella DJ, Berentei Z, Marosfoi M, Cekirge SH, Nelson PK. Radiology. 2013 2013 Feb 15. [Epub ahead of print] Massive cerebral involvement in fat embolism syndrome and intracranial pressure management. Kellogg RG, Fontes RB, Lopes DK J. Neurosurg. 2013 Aug 16 Recanalization of acute carotid stent occlusion using Penumbra 4Max aspiration catheter: technical report and review of rescue strategies for acute carotid stent occlusion. Munich S, Moftakhar R, Lopes D BMJ Case Rep 2013 2013:. Endovascular repair of a double-lumen dissecting aneurysm. Johnson AK, Gerard CS, Lopes DK BMJ Case Rep 2013 2013:. Stent assisted embolization of 64 anterior communicating artery aneurysms. Johnson AK, Munich SA, Heiferman DM, Lopes DK. J Neurointerv Surg. 2012 2012 Sep 21. [Epub ahead of print] Intervention for intracranial atherosclerosis after SAMMPRIS. Ringer AJ, Khalessi AA, Mocco J, Boulos A, Welch B, Siddiqui AH, Lopes D, Bendok B, Arthur A, Levy E, Veznedaroglu E; Endovascular Neurosurgery Research Group (ENRG). World Neurosurg. 2012 2012 Nov 78(5):409-12. doi: 10.1016/j.wneu.2012.07.009. Epub 2012 Jul 20. No abstract available. Double wire technique for stenting tortuous cerebral vessels. Lopes DK, Johnson AK, Schreiner CA. J Stroke Cerebrovasc Dis. 2012 2012 Nov 21(8):905.e7-10. doi: 10.1016/j.jstrokecerebrovasdis.2011.06.002. Epub 2011 Jul 20. Evaluation of cerebral artery perforators and the pipeline embolization device using optical coherence tomography. Lopes DK, Johnson AK. J Neurointerv Surg. 2012 2012 Jul 4(4):291-4. doi: 10.1136/neurintsurg-2011-010102. Epub 2011 Sep 20. Initial Experience with Neuroform EZ in the Treatment of Wide-neck Cerebral Aneurysms. Mangubat EZ, Johnson AK, Keigher KM, Lopes DK. Neurointervention. 2012 2012 Feb 7(1):34-9. doi: 10.5469/neuroint.2012.7.1.34. Epub 2012 Feb 29. Venous sinus manometry and intervention using the PrimeWire Prestige pressure guidewire: technique and initial experience. Lopes DK, Johnson AK, Tan LA. J Neurointerv Surg. 2012 2012 Aug 31. [Epub ahead of print] Gender differences in cerebral aneurysm location. Ghods AJ, Lopes D, Chen M. Front Neurol. 2012 2012 3:78. doi: 10.3389/fneur.2012.00078. Epub 2012 May 21. Should we use stents in subarachnoid hemorrhage? Lopes D, Mangubat E, Keigher K, Cogan C. J Neurosurg Sci 2011 Mar 55(1):35-8 Moyamoya syndrome in an adult with essential thrombocythemia. Lazzaro MA, Cochran EJ, Lopes DK, Prabhakaran S. Neurol Int. 2011 2011 Jun 3(1):e3. doi: 10.4081/ni.2011.e3. Epub 2011 Apr 28. Transfer delay is a major factor limiting the use of intra-arterial treatment in acute ischemic stroke. Prabhakaran S, Ward E, John S, Lopes DK, Chen M, Temes RE, Mohammad Y, Lee VH, Bleck TP. Stroke. 2011 2011 Jun 42(6):1626-30. doi: 10.1161/STROKEAHA.110.609750. Epub 2011 Apr 28. High-dose intra-arterial nicardipine results in hypotension following vasospasm treatment in subarachnoid hemorrhage. Rosenberg N, Lazzaro MA, Lopes DK, Prabhakaran S. Neurocrit Care. 2011 2011 Dec 15(3):400-4. doi: 10.1007/s12028-011-9537-4. Erratum. Mericle RA, Simon SD, Lopes DK. Neurosurgery. 2011 2011 Apr 27. [Epub ahead of print] No abstract available. Hemodynamic changes following wingspan stent placement--a quantitative magnetic resonance angiography study. Prabhakaran S, Wells KR, Jhaveri MD, Lopes DK. J Neuroimaging. 2011 2011 Apr 21(2):e109-13. doi: 10.1111/j.1552-6569.2009.00425.x. Use of intracranial stenting to secure unstable liquid embolic casts in wide-neck sidewall intracranial aneurysms Simon SD, Lopes DK, Mericle RA Neurosurgery 2010 Mar 66(3 Suppl Operative):92-7; discussion 97-8 Onyx embolization of arteriovenous malformations using 2 microcatheters. Lopes DK, Bagan B, Wells K. Neurosurgery. 2010 2010 Mar 66(3):616-8; discussion 618-9. doi: 10.1227/01.NEU.0000365368.08451.08. Use of intracranial stenting to secure unstable liquid embolic casts in wide-neck sidewall intracranial aneurysms. Simon SD, Lopes DK, Mericle RA. Neurosurgery. 2010 2010 Mar 66(3 Suppl Operative):92-7; discussion 97-8. doi: 10.1227/01.NEU.0000350983.03348.06. Erratum in: Neurosurgery. 2011 Aug;69(2):E518. Stent remodeling technique for coiling of ruptured wide-neck cerebral aneurysms: case report. Lopes DK, Wells K. Neurosurgery. 2009 2009 Nov 65(5):E1007-8; discussion E1008. doi: 10.1227/01.NEU.0000350984.86323.61. The utility of quantitative magnetic resonance angiography in the assessment of intracranial in-stent stenosis. Prabhakaran S, Warrior L, Wells KR, Jhaveri MD, Chen M, Lopes DK. Stroke. 2009 2009 Mar 40(3):991-3. doi: 10.1161/STROKEAHA.108.522391. Epub 2009 Jan 22. Video NeuroImage: symptomatic SUNCT syndrome cured after trigeminal neurovascular contact surgical decompression. Guerreiro R, Casimiro M, Lopes D, Marques JP, Fontoura P. Neurology 2009 Feb 17 72(7):e37 Histopathologic description of Wingspan stent in acute ischemic stroke. Lee VH, Samuels S, Herbst TJ, Gallegos M, Cochran EJ, Chen M, Prabhakaran S, Lopes DK. Neurocrit Care. 2009 2009 Dec 11(3):377-80. doi: 10.1007/s12028-009-9258-0. Defining the risk of retreatment for aneurysm recurrence or residual after initial treatment by endovascular coiling: a multicenter study. Ringer AJ, Rodriguez-Mercado R, Veznedaroglu E, Levy EI, Hanel RA, Mericle RA, Lopes DK, Lanzino G, Boulos AS. Neurosurgery. 2009 2009 Aug 65(2):311-5; discussion 315. doi: 10.1227/01.NEU.0000349922.05350.96. Does angiographic surveillance pose a risk in the management of coiled intracranial aneurysms? A multicenter study of 2243 patients. Ringer AJ, Lanzino G, Veznedaroglu E, Rodriguez R, Mericle RA, Levy EI, Hanel RA, Lopes DK, Boulos AS. Neurosurgery. 2008 2008 Nov 63(5):845-9; discussion 849. doi: 10.1227/01.NEU.0000333261.63818.9C. The OK sign: an unusual angiographic appearance of basilar artery fenestration. Prabhakaran S, Lopes DK. Arch Neurol. 2008 2008 Jun 65(6):836. doi: 10.1001/archneur.65.6.836. No abstract available. Prevalence and risk factors for aspirin and clopidogrel resistance in cerebrovascular stenting Prabhakaran S, Wells KR, Lee VH, Flaherty CA, Lopes DK AJNR Am J Neuroradiol 2008 Feb 29(2):281-5
Profile Video of Demetrius K. Lopes, MD
I think what Rush has provided to us is the ideal platform of having incredible imaging. So we can see the blood vessels very well, and we can see what we are doing during surgery. So having that technology has just been a revolution.
The key though, at the end of the day, is to have that goal of — you have your technology. You have your options. But it’s how you pick which tools you’re going to use to maximize that efficiency of treatment, but also the ability to minimize the impact of quality of life of the patient, so that they can come in with a very significant medical problem — such as a brain aneurysm, vascular malformation or blockage of a blood vessel in the head, like a stroke for example — and be able to get out of this experience, have your disease treated, cured from that, and return to your life in a short period of time. I think it’s an amazing goal, and that’s what we strive for.
Treating Cerebrovascular Conditions
The Benefits of Neuroendovascular Surgery
Patient feedback information is available for physicians employed by Rush University Medical Center who have received
30 or more patient surveys. Responses are measured on a scale of 1 to 5, with 5 being the best score.
Number of Patient Surveys
Friendliness/courtesy of the care provider
Explanations the care provider gave you about your problem or condition
Concern the care provider showed for your questions or worries
Likelihood of your recommending this care provider to others
Care provider's efforts to include you in decisions about your treatment
Information the care provider gave you about medications
Instructions the care provider gave you about follow-up care
Your confidence in this care provider
Degree to which care provider talked with you using words you could understand
Amount of time the care provider spent with you
For more information about patient feedback, see the
section of the Rush University Medical Center website.