Invited Lectures


September 29 - October 2, 2016
Christopher Duma, MD guest speaker - ISCT Meeting - Oral Presentation session 1 & 2 - Memphis, Tennessee

September, 24- 28, 2016
Christopher Duma, MD guest speaker - 2016 Annual CNS Meeting - San Diego, CA

May 15-19, 2016
Christopher Duma, MD guest speaker- The 18th Annual   International Leksell Gamma Knife Society Meeting - “ Pathophysiology of Gliomas Leading Edge Radiosurgery Emerging Approaches” -Amsterdamn, NL 18th Annual Leksell Gamma Knife Society Meeting Amsterdam - Panel Debate- Pathophysiology of Gliomas Leading Edge Radiosurgery Emerging Approaches Martin van den Bent Erasmus MC Kanker Instituut (Rotterdam, the Netherlands)Christopher Duma Hoag Hospital (Newport Beach, US; Roger Stupp UniversitätsSpital Zürich (Zurich, Switzerland)

May 3, 2016
Christopher Duma, MD guest speaker- TED Talk - “LeadingEdge Pinpoint Radiation Technique on Glioblastoma.” - Valencia, CA

March 1, 2016
Christopher Duma, MD - North County dinner talk, “ResultsBased on Modern Brain and Pituitary Surgery.” Anahein, CA

February 9, 2016
Christopher Duma, MD guest speaker @ South County dinnertalk - Arroyo Trabuco Golf Club, CA

September 18-21 , 2015
Christopher Duma, MD guest speaker @ The 13th International   
Symposium on Neural Transplantation and Repair(Intra13)Beijing International Convention Center, Beijing, China; HTTP://intra13.csp.escience.cn

 May 20, 2015
Brain Tumor Support Group, 3rd Floor conference room, Hoag Hospital, Newport Beach

March 20, 2015
Christopher Duma, MD guest speaker -  2nd Annual ParkinsonsDisease Patients & Caregivers Symposium,

August 22, 2014
Christopher Duma, MD guest speaker -USC lecture, Grand Rounds

June 19, 2014
Parkinsons PD Basic Lecture, Hoag Hospital, Irvine, CA

January 16, 2013
Christopher Duma, MD guest speaker @ Brain Tumor Support group - Neuro Conference Room, Hoag Hospital, Newport Beach

September 11, 2012
Presentation of Infection Stats to QICB hospital board

June 28, 2013
Christopher Duma, MD guest speaker @ Aliso Viejo Country Club, “Managing you Parkinsons disease w/ Dr. Duma & Dr. Martinez.”

March 25-29 2012
16th Annual Leksell Gammaknife Meeting, Sydney Australia

November 17-20, 2011
Society of Neurooncology, Hyatt Regency, Garden Grove

November 16, 2011
Christopher Duma, MD Speaker- Brain Tumor Support Group Modern Treatment For Brain Tumors"  - Vaccines & Immunotherapy, Neuroscience Conf Room, Hoag Hospital- Newport Beach, CA

Oct 18, 2011
Christopher Duma MD, speaker “Surgical Intervention for Parkinsons Disease.”
Rehab dept, Hoag, Newport Beach

Oct. 7, 2011
Christopher Duma, MD, speaker “Nurses Conference”
Hoag Hospital, Conference center, Newport Beach

Oct. 3 & 4, 2011
Christopher Duma, MD. “Annual CNS Conference”
Washington, D.C. 2011 – Waalter E. Washington Convention Center.

Sept. 29, 2011
Christopher Duma MD. Invited Speaker – “Deep Brain Stimulation Surgery for Parkinsons disease- Update”.
NPFOCC, Claremont Club – Claremont, CA

Sept. 19, 2011
Christopher Duma MD Invited Speaker – “Deep Brain Stimulation Surgery for Parkinson’s disease- Update”.
NPFOCC, Huntington Beach Landmark Community Center.

Jan. 5, 2011
Christopher Duma, MD speaker: “Glioblastoma Multiforme and Hyperbaric Treatment”
Center for New Medicine, Irvine, CA

June 8, 2010
Christopher Duma, MD. Invited speaker: Annual Neurosciences Symposium, moderator, David Larsen, MD: “Modern Management of Brain Tumors.”
Fremont Hospital, Fremont California

May, 2010
Christopher Duma, MD speaker: “MRI Imaging for Gamma Knife Treatment using a Verio 3T MRI”.
Leksell Gamma Knife Society, 15th International Meeting. Athens, Greece. (R. Mackintosh, M. BZ, C.Duma, M. Plunkett, et al.

Oct. 4, 2010
Christopher Duma MD, speaker – Gk talk, Saddleback Hospital

May 14, 2008
Christopher Duma, MD speaker: CME activity, leading edge talk “Update on Leading Edge Radiosurgery for Glioblastoma Multiforme.”
UCIMC, Orange, CA

April 19, 2008
Christopher Duma MD. Speaker: Modern Management of Acoustic Neuromas. Acoustic Neuroma Association
Hoag Hospital’s Radiation Oncology Library. Newport Beach, Ca.

April 17, 2008
Christopher Duma MD. Speaker: Club House for Parkinson CME with Janet Chance, Costa Mesa, Ca

March 25, 2008
Christopher Duma, MD. Assess OC Physician Advisory Group. Irvine, California.

Feb 21, 2008
Chris Duma. Speaker Brain Tumor Support Group at Hoag Hospital. Newport Beach, California.

Jan 29, 2008
Chris Duma, Speaker. Brain Tumor lecture Meeting. Seal Beach, California.

Sept 27, 2007
Chris Duma, Speaker. CME Talk- Advanced technique and brain Tumor Surgery. Orange County, California

Sept 26, 2007
Chris Duma, Intro to Robin Ellis, RN (Speaker). Brain Tumor Lecture Meeting. Ayres Hotel, Seal Beach, California.

July 31, 2007
Brain Tumor Educational Meeting. Seal Beach, California.

June 26, 2007
Chris Duma, Invited Speaker. Gamma-knife leading edge. ISRS, San Francisco, California.

June 21, 2007
Chris Duma, MD. Guest Speaker. Cancer Committee Meeting

June 13, 2007
Chris Duma, Keynote Speaker. Endowment Council Meeting. Hoag Conference Center, Newport Beach, California.

April 21, 2007
Chris Duma, Speaker. Parkinson’s Disease Meeting with Janet Reno

Feb 2-3, 2007
Leading Edge Proposal at RTOG Conference, Tampa, Florida.

Jan 30, 2007
“Understanding Brain Tumors- Signs, Symptoms and Diagnostic Tools”.
North County Meeting, Ayres Hotel, Seal Beach, California.

Jan 19-22, 2007
Leading Edge Proposal at RTOG Conference, Miami, Florida.

Oct 9-11, 2006
Invited Speaker GK leading Edge. CNS, Chicago, Illinois.

May 19-28, 2006
Gamma-knife Users Group Meeting, Seol, Korea.

Sept 1-16, 2005
Invited Lecturer, Gamma Knife. ISRS, Belgium, Brussels.

June 11, 2005
Christopher Duma, MD. Speaker. UCI Department of Neurosurgery Symposium on Vascular Malformations; Kusske Chair
Annual Symposium. “Radiosurgery for Arteriovenous Malformations.”
Irvine, California.

May 14, 2005
Christopher Duma, MD. Faculty, Texas Medical Association, Texas Neurosurgical Association Annual Symposium, “Radiosurgery for Trigeminal Neuralgia”
Gaylord Convention Center, Grapevine, Texas.

May 13, 2005
Christopher Duma, MD. Faculty, Texas Medical Association, Texas Neurosurgical Association Annual Symposium, “GBM is a Local Disease, Rationale for Radiosurgery”
Gaylord Convention Center, Grapevine, Texas.

April 21, 2005
Christopher Duma, MD. Faculty, Ayres Hotel, Laguna Hills, CA: “Brain Tumors: Signs, Symptoms and Imaging.”
South Orange County Brain Tumor Support Group.

March 25, 2005
Christopher Duma, MD. Faculty, UC Irvine School of Medicine, Department of Neurosurgery Grand Rounds: “Glioblastoma Multiforme is a Local Disease”
Irvine, California.

February 5, 2005
Christopher Duma, MD. Faculty, Conference Center, Hoag Memorial Hospital Presbyterian, Newport Beach, CA: The Modern Treatment of Trigeminal Neuralgia. “Radiosurgery for trigeminal neuralgia”

December 13, 2004
Christopher Duma, MD. Invited Speaker, Villa Valencia Assisted Living, Aliso Viejo, CA, “The Surgical Management of Parkinson’s Disease”

December 9, 2004
Christopher Duma, MD. Invited Speaker, 552 Club Board Meeting, Hoag Memorial Hospital Presbyterian, Newport Beach, CA. “Update on Neurosciences at Hoag”

November 17, 2004
Christopher Duma, MD. Invited Speaker, South Coast Medical Center, Laguna Beach, CA, “Surgical Management of Parkinson’s Disease”

November 6, 2004
Christopher Duma, MD. Invited Speaker, South Coast Medical Center, Laguna Beach, CA, “Surgical Management of Parkinson’s Disease”

October 15, 2004
Christopher Duma, MD. Invited Speaker, Conference Center, Hoag Memorial Hospital Presbyterian, Newport Beach, CA: “Surgical Management of Parkinson’s Disease”

May 1, 2004
Christopher Duma, MD. Faculty: Contemporary Management of Movement Disorders. AANS Practical San Francisco, California. “Radiosurgery for Movement Disorders”

October 31, 2003
Christopher Duma, MD. Invited speaker: Medical Grand Rounds, South Coast Medical Center, Laguna Beach, CA: “Modern Management of Brain Tumors.”

October 19, 2003
Christopher Duma, MD. Faculty: Contemporary Management of Movement Disorders. CNS Practical Clinic, Denver, Colorado, “Radiosurgery for Movement Disorders”

October 20, 2003
Christopher Duma, MD. Faculty: Management of Acoustic Neuroma, Luncheon Seminar, Congress of Neurological Surgeons. “Gamma Knife radiosurgery for acoustic neuromas”

October 10, 2003
Christopher Duma, MD. Invited Lecturer: “Modern Stereotactic Radiosurgery: Tools, Tricks, and Complication Avoidance.” UCI Medical Center, Neurosurgery Grand Rounds, Orange, CA

September 23, 2003
Christopher Duma, MD. Invited Speaker: “Contemporary Management of Movement Disorders”. South Coast Medical Center, Laguna Beach, CA

May 10, 2003
Christopher Duma, MD. Invited Speaker, Cancer Center, Hoag Memorial Hospital Presbyterian: “Modern Brain Surgery”, Newport Beach, CA

April 26, 2003
Christopher Duma, MD. Faculty: Contemporary Management of Movement Disorders. AANS Practical Clinic, San Diego, California. “Radiosurgery for Movement Disorders”

February 6, 2003
Christopher Duma, MD. Chairman and Faculty: Update on the Management of Brain Tumors, Long Beach Aquarium, Long Beach, CA. “Modern Surgical Management of Brain Tumors.”

November 12, 2002
Christopher Duma, MD. Invited Speaker: “Contemporary Management of Movement Disorders”. Cedars-Sinai Medical Center, Los Angeles, CA

October 18, 2001
Christopher Duma, MD. Invited Speaker, Cancer Center, Hoag Memorial Hospital Presbyterian: “Modern Brain Surgery”, Newport Beach, CA

October 27, 2001
Christopher Duma, MD. Invited Speaker, Hoag Memorial Hospital Presbyterian, Essential Tremor Support Group Meeting: “The Surgical Management of Essential Tremor”, Newport Beach, CA

October 1, 2001
Christopher Duma, MD. Invited Speaker, Medical Oncologists of Palm Springs. “Gamma Knife Radiosurgery – 11 years experience.”

September 13, 2001
Christopher Duma, MD. Invited Speaker, “The War on Cancer”, Hoag Memorial Hospital Presbyterian, “Gamma Knife Radiosurgery for Malignant Tumors.” Newport Beach, CA

June 8, 2001
Christopher Duma, MD. Invited Speaker, ISRS (International Stereotactic Radiosurgical Society) 2001. Panelist and guest lecturer: “Leading edge Gamma Knife radiosurgery for Glioblastoma Multiforme” Las Vegas, NV

June 7, 2001
Christopher Duma, MD. Invited Speaker, ISRS (International Stereotactic Radiosurgical Society) 2001. Panelist and guest lecturer: “Gamma Knife radiosurgery for pediatric low grade astrocytomas” Las Vegas, NV

February 25, 1999
Christopher Duma, MD. Invited Speaker, ISRS (International Stereotactic Radiosurgical Society) 1999. Panelist and guest lecturer: “Gamma Knife radiosurgery for movement disorders” Sydney, Australia

February 25, 1999
Christopher Duma, MD. Invited Panelist, ISRS (International Stereotactic Radiosurgical Society) 1999. Panelist: “Functional Radiosurgery” Sydney, Australia

February 26, 1999
Christopher Duma, MD. Invited Speaker and Panelist, ISRS (International Stereotactic Radiosurgical Society) 1999. Panelist and guest lecturer: “Frontiers in Functional Radiosurgery” Breakfast Seminar, Sydney, Australia.

April 25, 1998
Christopher Duma, MD. Faculty, American Association of Neurological Surgeons (AANS) Annual Meeting, “Image-Guided Neurosurgery Workshop.” Seattle, Washington.

June 24, 1997
Invited Speaker, Annual Gamma Knife Users Group Meeting. “Radiosurgical Pallidotomy: Counterpoint” Marseilles, France.

June 25, 1997
Invited Speaker, Annual Gamma Knife Users Group Meeting. “Radiosurgical management of cavernous sinus meningiomas, complications and side-effects” Marseilles, France.

June 28, 1997
Invited Speaker, ISRS (International Stereotactic Radiosurgical Society) 1997. “Functional Radiosurgery” Madrid, Spain.

April 25, 1997
Invited Speaker, Northridge Medical Center, Medical Grand Rounds. “Gamma Knife Stereotactic Radiosurgery, Indications and Results from a 6-Year Experience.” Northridge, California

April 17, 1997
Faculty, Panelist, Breakfast Seminar, American Association of Neurological Surgeons Annual Meeting, “Current and Modern Management of Malignant Gliomas.” Denver, Colorado

April 12, 1997
Faculty, American Association of Neurological Surgeons Annual Meeting, “Image-Guided Neurosurgery Workshop.” Denver, Colorado

February 21, 1997
Invited Speaker, University of Puerto Rico, Neurosurgical Grand Rounds. “Gamma Knife Radiosurgery and Modern Management of Brain Tumors.” San Juan, Puerto Rico

February 5, 1997
Panelist, Speaker, American Association of Neurological Surgeons – Section on Cerebrovascular Surgery. “Stereotactic Radiosurgical Treatment of Arteriovenous Malformations.” Disneyland Hotel, Anaheim, California.

January 15, 1997
Invited Speaker, Guam Medical Board Grand Rounds. “Gamma Knife Radiosurgery and Modern Management of Brain Tumors.” Guam, USA.

November 16, 1996
Invited Speaker, Parkinson’s Support Group, Australia, “Update on Modern Surgical Management of Parkinson’s Disease.” Sydney, Australia

November 15, 1996
Invited Speaker, Neurology Grand Rounds, “Gamma Knife Radiosurgery and an Update on Modern Surgical Management of Parkinson’s Disease.” Sydney, Australia

November 2-3, 1996
Faculty, Advances in Clinical Neurosciences: “Gamma Knife Radiosurgery Update.” “The Use of the Stereotactic Navigational Wand.” Rancho Mirage, California

September 25, 1996
Invited speaker, San Diego Academy of Neurological Surgeons, “Modern neurosurgery using the Gamma Knife and the Elekta navigational Wand,” Embassy Suites, Jolla

September 9, 1996
Invited speaker, Pacific Oncology Network, “Gamma knife stereotactic radiosurgery. Indications and results.” Ocean Avenue Seafood Grill, Santa Monica, California

September 7, 1996
Invited speaker, Trigeminal Neuralgia Society of Orange County, “The Modern Management of Trigeminal Neuralgia: Glycerol Rhizotomy and the Gamma Knife.” Columbia Hospital, Laguna Hills, California

August 10, 1996
Invited speaker, Trigeminal Neuralgia Society of Los Angeles, “The Modern Management of Trigeminal Neuralgia Glycerol Rhizotomy, and the Gamma Knife.” Covina, California

July 25, 1996
Invited speaker, managed care seminar, “Gamma knife stereotactic radiosurgery. Indications and results,” Talbert Medical Group, Riverside, California

June 18, 1996
Invited speaker, Hospital Grand Rounds, “Gamma knife stereotactic radiosurgery. Indications and results.” Valley Presbyterian Hospital, Los Angeles, California

April 27, 1996
Faculty, American Association of Neurological Surgeons Annual Meeting, “Surgical Application of the ISG Wand in Neurosurgery.” Minneapolis, Minnesota

January 29, 1996
Faculty, Course Moderator: “Image Guided Neurosurgery Workshop” Loews Hotel, Santa Monica, California

April 1, 1995
Invited speaker, Hospital Grand Rounds, “Gamma knife stereotactic radiosurgery. Indications and results.” San
Javier Hospital, Guadalajara, Mexico

March 7, 1996
Invited speaker, Hospital Grand Rounds, “Gamma knife stereotactic radiosurgery. Indications and results.” St. John’s Hospital, Santa Monica, California

March 4, 1996
Invited speaker, “Stereotactic neurosurgery and Gamma Knife radiosurgery”, Tumor Board, Glendale Memorial Hospital.

November 11, 1995
Invited speaker, managed care seminar, “Gamma knife stereotactic radiosurgery. Indications and results.” Health Care Partners, Los Angeles, California

November 8, 1995
Faculty, Good Samaritan Hospital: “Everything you always wanted to know about Gamma Knife Radiosurgery.” Los Angeles, California.

April 22, 1995
Faculty, American Association of Neurological Surgeons Annual Meeting, “Surgical Application of the ISG Wand in Neurosurgery.” Orlando, Florida.

February 22, 1995
Invited speaker, Neurosurgery Grand Rounds: “Gamma knife stereotactic radiosurgery. Indications and results.” UC Irvine Medical Center, Irvine, California

December 10-12, 1993
Faculty, Advances in Clinical Neurosciences:”GammaKnife radiosurgery for metastases and primary gliomas at the Hospital of the Good Samaritan” and “Combination of open surgery and radiosurgery in the modern management difficult brain tumors.” Rancho Mirage, California

December 4, 1993
Faculty; Stereotactic Neurosurgery in Practice, “Stereotactic neurosurgery for the private practitioner” Princess Hotel, Scottsdale, Arizona

November 19, 1993
Invited Speaker (in French), “Le gamma knife, principe, indications et résultats.” Presented at Avancées Thérapeutiques en Neurochirurgie. Clinique des Cédres, Cornebarrieu, France

November 11, 1993
Neurosciences Grand Rounds: “Stereotactic neurosurgery: the spectrum.” The Hospital of the Good Samaritan, Los Angeles, California

October 12, 1993
Invited speaker, Oncology Grand Rounds: “Gamma knife stereotactic radiosurgery. Indications and results.” City of Hope Cancer Center, Duarte, California

September 27, 1993
Neurosciences Grand Rounds: “Gamma Knife radiosurgery, the 6-year Pittsburgh experience.” The Hospital of the Good Samaritan, Los Angeles, California

May 3, 1993
Neurosurgery Grand Rounds, “Modern Management of Cavernous Sinus Meningiomas.” National Institutes of Health, Bethesda, Maryland.

March 3, 1993
Combined Neurology/Neurosurgery Grand Rounds, “Modern Management of Cavernous Sinus Meningiomas.” Georgetown University Hospital, Washington, DC

February 22, 1993
Neurosurgery Grand Rounds, “Modern Management of Cavernous Sinus Meningiomas.” Brown University and the Rhode Island Hospital, Providence, Rhode Island.

January 30, 1993
Invited Lecturer, Neuraxis Neurosurgical Group, “Gamma Knife Radiosurgery: The University of Pittsburgh Experience”. Orange, California.

November 19-21, 1992
Invited Faculty; Stereotactic Neurosurgery in Practice, Princess Hotel, Scottsdale, Arizona

November 12, 1992
Invited Lecturer, Neurosurgery Grand Rounds, “Gamma Knife Radiosurgery: The University of Pittsburgh Experience”. University of Texas, School of Medicine, Texas Medical Center, Houston, Texas.

May 30, 1992
Invited Lecturer, General Surgery Grand Rounds, “Gamma Knife Radiosurgery: The University of Pittsburgh Experience”. Georgetown University Hospital, Washington, DC

April 12, 1992
Invited Faculty; Practical Clinic: “Stereotactic Radiosurgery AANS Annual Meeting, Moscone Conference Center, San Francisco, California

February 21-22, 1992
Invited Lecturer, National Brain Tumor Foundation – “Future advances in Neurosurgery – The Gamma Knife” and “Workshop – Current treatments using the Gamma Knife”, San Francisco Hyatt, California

November 16-19, 1991
Invited Faculty; Stereotactic Neurosurgery in Practice, Princess Hotel, Scottsdale, Arizona

October 27, 1991
Invited Faculty; Current Treatment of Trigeminal Neuralgia, Marriott World Center, Orlando, Florida

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