KaiFrerichsMD

Neurosurgery • Boston, MA

Assistant Professor of Surgery, Brigham and Women's Hospital

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Office
75 Francis St
Brigham And Women's Hospital
Boston, MA 02115
Phone+1 617-525-8148
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Education & Training

Brigham and Women's Hospital/Children's HospitalResidency, Neurological Surgery, 1993 - 2000
Brigham and Women's HospitalResidency, Surgery, 1993 - 1994
Ludwig Maximilian University of Munich Faculty of MedicineClass of 1988

Certifications & Licensure

MA State Medical License 1997 - 2026
NY State Medical License 2000 - 2007
American Board of Neurological Surgery Neurological Surgery

Awards, Honors, & Recognition

Regional Top Doctor Castle Connolly, 2014
Meaningful Use Stage 1 Certification Centers for Medicare & Medicaid Services, 2012
Super Doctor SuperDoctors.com
Fellow (FAANS) American Association of Neurological Surgeons
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Publications & Presentations

PubMed

Randomized Clinical Trials in Cerebrovascular Neurosurgery From 2018 to 2022.
Nguyen, H., Kappel, A., Frerichs, K., Patel, N., Aziz-Sultan, M., Du, R.> ;Cureus. 2024 Jan 1
A Transcriptomic Comparative Study of Cranial Vasculature.
Jianing Zhang, Jee-Yeon Ryu, Selena-Rae Tirado, Lawrence D Dickinson, Aviva Abosch, M Ali Aziz-Sultan, Alan S Boulos, Daniel L Barrow, H Hunt Batjer, Tamar R Binyamin,...> ;Translational Stroke Research. 2023 Aug 23
5 citations
Asymptomatic Moyamoya Disease in a North American Adult Cohort.
Pui Man Rosalind Lai, Santiago Gomez-Paz, Nirav J Patel, Kai U Frerichs, Ajith J Thomas, M Ali Aziz-Sultan, Aman B Patel, Christopher S Ogilvy, Rose Du> ;World Neurosurgery. 2022 May 1
2 citations
Seizure Outcomes After Interventional Treatment in Cerebral Arteriovenous Malformation-Associated Epilepsy: A Systematic Review and Meta-Analysis.
Asad M Lak, Christian D Cerecedo-Lopez, Julia Cha, Mohammad Ali Aziz-Sultan, Kai U Frerichs, William B Gormley, Rania A Mekary, Rose Du, Nirav J Patel> ;World Neurosurgery. 2022 Apr 1
Cannabis Use and Increased Nonaneurysmal Subarachnoid Hemorrhage in the Past Decade.
Pui Man Rosalind Lai, Isaac Ng, William B. Gormley, Nirav J. Patel, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;World Neurosurgery. 2021 Oct 1
17 citations
Direct vs Indirect Revascularization in a North American Cohort of Moyamoya Disease
Pui Man Rosalind Lai, Nirav J. Patel, Kai U. Frerichs, Aman B. Patel, M. Ali Aziz-Sultan, Christopher S. Ogilvy, Rose Du> ;Neurosurgery. 2021 Jul 15
10 citations
Periprocedural intracranial hemorrhage after embolization of cerebral arteriovenous malformations: a meta-analysis
Yosuf W. Subat, Hormuzdiyar H. Dasenbrock, Bradley A. Gross, Nirav J. Patel, Kai U. Frerichs, Rose Du, M. Ali Aziz-Sultan> ;Journal of Neurosurgery. 2020 Nov 1
2 citations
Familial Predisposition and Differences in Radiographic Patterns in Spontaneous Nonaneurysmal Subarachnoid Hemorrhage.
Pui Man Rosalind Lai, Isaac Ng, William B. Gormley, Nirav J. Patel, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;Neurosurgery. 2021 Jan 13
3 citations
Adverse events after clipping of unruptured intracranial aneurysms: the NSQIP unruptured aneurysm scale
Hormuzdiyar H. Dasenbrock, Robert F. Rudy, Timothy R. Smith, William B. Gormley, Nirav J. Patel, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;Journal of Neurosurgery. 2020 Apr 1
15 citations
Insulin in the Management of Acute Ischemic Stroke: A Systematic Review and Meta-Analysis
Christian D. Cerecedo-Lopez, Alejandra Cantu-Aldana, Nirav J. Patel, M. Ali Aziz-Sultan, Kai U. Frerichs, Rose Du> ;World Neurosurgery. 2020 Jan 16
15 citations
Predictive Score of Adverse Events After Carotid Endarterectomy: The NSQIP Registry Carotid Endarterectomy Scale
Hormuzdiyar H. Dasenbrock, Timothy R. Smith, William B. Gormley, Joseph P. Castlen, Nirav J. Patel, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;Journal of the American Heart Association. 2019 Nov 5
14 citations
Age-Dependent Radiographic Vasospasm and Delayed Cerebral Ischemia in Women After Aneurysmal Subarachnoid Hemorrhage.
Pui Man Rosalind Lai, William B. Gormley, Nirav J. Patel, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;World Neurosurgery. 2019 Oct 1
7 citations
Frameless Stereotactic Navigation during Insular Glioma Resection using Fusion of Three-Dimensional Rotational Angiography and Magnetic Resonance Imaging.
Hormuzdiyar H. Dasenbrock, Alfred P. See, Robert Smalley, Wenya Linda Bi, Parviz Dolati, Kai U. Frerichs, Alexandra J. Golby, E. Antonio Chiocca, M. Ali Aziz-Sultan> ;World Neurosurgery. 2019 Jun 1
28 citations
Comparison of flow diversion with clipping and coiling for the treatment of paraclinoid aneurysms in 115 patients.
Michael A Silva, Alfred P. See, Priyank Khandelwal, Ashutosh Mahapatra, Kai U. Frerichs, Rose Du, Nirav J. Patel, Mohammad Ali Aziz-Sultan> ;Journal of Neurosurgery. 2019 May 1
12 citations
Noninfectious Fever in Aneurysmal Subarachnoid Hemorrhage: Association with Cerebral Vasospasm and Clinical Outcome
Pui Man Rosalind Lai, Alfred P. See, Michael A Silva, William B. Gormley, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;World Neurosurgery. 2019 Feb 1
15 citations
The Timing of Tracheostomy and Outcomes After Aneurysmal Subarachnoid Hemorrhage: A Nationwide Inpatient Sample Analysis
Hormuzdiyar H. Dasenbrock, Robert F. Rudy, William B. Gormley, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;Neurocritical Care. 2018 Oct 8
Treatment of Ruptured and Unruptured Cerebral Aneurysms in the USA: A Paradigm Shift
Ning Lin, Robert M Friedlander, Kai U Frerichs, Kevin S Cahill, Elizabeth B Claus> ;Emergency Medicine Journal. 2018 Jul 25
24 citations
Cigarette smoking and outcomes after aneurysmal subarachnoid hemorrhage: a nationwide analysis
Hormuzdiyar H. Dasenbrock, Robert F. Rudy, Pui Man Rosalind Lai, Timothy R. Smith, Kai U. Frerichs, William B. Gormley, M. Ali Aziz-Sultan, Rose Du> ;Journal of Neurosurgery. 2017 Oct 27
20 citations
Readmission After Aneurysmal Subarachnoid Hemorrhage: A Nationwide Readmission Database Analysis
Hormuzdiyar H. Dasenbrock, Frederico Angriman, Timothy R. Smith, William B. Gormley, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;Stroke. 2017 Sep 1
26 citations
The impact of body habitus on outcomes after aneurysmal subarachnoid hemorrhage: a Nationwide Inpatient Sample analysis
Hormuzdiyar H. Dasenbrock, Michael O Nguyen, Kai U. Frerichs, Donovan Guttieres, William B. Gormley, M. Ali Aziz-Sultan, Rose Du> ;Journal of Neurosurgery. 2017 Jul 1
3 citations
Stent deployment protocol for optimized real-time visualization during endovascular neurosurgery.
Michael A Silva, Alfred P. See, Hormuzdiyar H. Dasenbrock, Ramsey Ashour, Priyank Khandelwal, Nirav J. Patel, Kai U. Frerichs, Mohammad Ali Aziz-Sultan> ;Journal of Neurosurgery. 2017 May 1
39 citations
The impact of aspirin and anticoagulant usage on outcomes after aneurysmal subarachnoid hemorrhage: a Nationwide Inpatient Sample analysis
Hormuzdiyar H. Dasenbrock, Sandra C. Yan, Bradley A. Gross, Donovan Guttieres, William B. Gormley, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;Journal of Neurosurgery. 2017 Feb 1
2 citations
Hemodynamic Impact of a Spontaneous Cervical Dissection on an Ipsilateral Saccular Aneurysm.
Alfred P. See, Bradley A. Gross, David L. Penn, Rose Du, Kai U. Frerichs> ;Journal of Cerebrovascular and Endovascular Neurosurgery. 2016 Jun 30
48 citations
Hospital-Acquired Infections after Aneurysmal Subarachnoid Hemorrhage: A Nationwide Analysis
Hormuzdiyar H. Dasenbrock, Robert F. Rudy, Timothy R. Smith, Donovan Guttieres, Kai U. Frerichs, William B. Gormley, M. Ali Aziz-Sultan, Rose Du> ;World Neurosurgery. 2016 Apr 1
11 citations
Clostridium difficile Infection After Subarachnoid Hemorrhage: A Nationwide Analysis.
Hormuzdiyar H. Dasenbrock, Arthur R. Bartolozzi, William B. Gormley, Kai U. Frerichs, M. Ali Aziz-Sultan, Rose Du> ;Neurosurgery. 2016 Mar 1
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