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Dive into the research topics where Christ Ordookhanian is active.

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Featured researches published by Christ Ordookhanian.


World Neurosurgery | 2018

“Crimes against the Nervous System”: Neurological References During the Nuremberg Doctors’ Trials

Julio C. Nunes; Caio M. Perret; Christ Ordookhanian; Paul E. Kaloostian; Saleem I. Abdulrauf; Tobias A. Mattei

The Nuremberg Trials were a sequence of tribunal sessions held by the Allied Forces between November 1945 and October 1946 with the intent of prosecuting prominent representatives of the Nazi Party for crimes committed before and during the war. Because medical experiments in human prisoners were among the most heinous offenses, a specific series of court cases, known as the Doctors Trials (the USA vs. Karl Brandt etxa0al), was carried out. A considerable part of the official documents of the Nuremberg Trials has been recently made publicly available through the Nuremberg Trials Project, an initiative of the Harvard Law School Library. We performed a comprehensive analysis of the Doctors Trials original documents (NMT 1: Medical Case) as well as other available academic and historical sources focusing on references to the nervous system, neurosurgical, and neurologic diseases. Besides providing a brief glance of a unique source of original historical documents, this historical vignette also attempts to fulfill, at least in some limited sense, the moral duty toward the Holocaust victims laid on our generation by remembering their fate.


Journal of surgical case reports | 2018

Concomittant fibrous dysplasia with aneurysmal bone cyst formation within the skull, humerus and rib

Sean W Kaloostian; Tara K Vartanian; Christ Ordookhanian; Talia Vartanian; Paul E.Kaloostian

Abstract Polyostotic fibrous dysplasia (FD) is a rare pathology characterized by the abnormal and gradual replacement of normal bone (calcium hydroxylapatite of osteoid matrix) with fibrous connective tissue. Aneurysmal bone cyst (ABC) is a tumor-like benign lesion with blood-filled cavities that can affect virtually any bone in the body. We report on a 20-year-old male presenting with an extremely rare pathology of FD with ABC formation of the skull, fourth rib and humerus. Our case report represents a novel literary addition to rare FD with ABC pathologies. Optimal diagnosis of this rare pathology can be achieved by a full body evaluation for clinical and radiographic FD with or without ABC, and optimal treatment for this rare pathology is the maximum surgical excision of the tumor and/or soft tissue.


Cureus | 2018

Anti-coagulation Drug Warfarin Contributes to Severe Adverse Outcomes in Prolonged Unsupervised Use: A Double-edged Sword

Christ Ordookhanian; Sean W Kaloostian; Paul E. Kaloostian

Anti-coagulation medications are widely used in clinical practice, especially in the United States as cardiac-related emergencies are on the rise. An overarching caveat in using anti-coagulation drugs as a long-term treatment regimen, such as warfarin, is that patients are closely monitored by their primary care provider. Routine monthly laboratory examinations are strictly required to assess the international normalized ratio (INR) which measures prothrombin time (PT), providing insight into how long it takes for blood to clot. A 58-year-old Caucasian male presented with non-traumatic acute quadriplegia with cord compression starting at the 3rd cervical (C3) level and continuing throughout the entire spinal cord. Radiological studies revealed severe cervical stenosis from C3 to C7 resulting from a posterior spinal mass, thoracic and lumbar spine studies revealed a compressive posterior acute epidural hematoma (EDH) compressing the thoracic spinal cord from T6 to T10 with signal change, as well as a L4-S1 posterior acute epidural hematoma compressive of the cauda equina. Upon detailed review of our patient’s history it became evident that our patient had been on a prolonged and unsupervised warfarin (Coumadin) regimen for congestive heart failure without primary care follow-up or routine laboratory testing. Our patient was a prime surgical candidate for an immediate two-stage decompression, hematoma evacuation and instrumentated fusion surgery. Post-operatively, our patient regained leg strength to 2/5 and arm strength to 4+/5.


Cureus | 2018

Trauma-induced Acute Epidural Hematoma: The Rising Sun in a Progressively Lethargic Man

Christ Ordookhanian; Paul E. Kaloostian

A young adult, 18 years of age, presented to the emergency department with severe traumatic brain injury (TBI) resulting from a bicycle versus vehicle head-on collision. The patient initially presented in a promising condition but quickly deteriorated into a state of unconsciousness with no meaningful responses to stimuli or coordinated voluntary movement. Stat computed tomography (CT) revealed a large, right-sided, acute epidural hematoma (EDH) with mass-effect and a severe midline shift indicative of immediate surgery. This case highlights the importance of closely monitoring traumatic brain injury patients regardless of initial presentation and neurological exam results, as the patients condition may drastically and rapidly change without much warning. Additionally, it is key to utilize regular radiological studies on these patients, to detect any neurological changes as close to onset as possible. Lastly, it is imperative that neurosurgeons closely monitor the patients/ state of consciousness as a rapid decline serves as a key diagnostic indicator of the need for immediate surgery.


Research and Review Insights | 2017

Identifying optimal treatment of common and complex sciatica pain

Christ Ordookhanian; Samer Ghostine; Paul E. Kaloostian

Received: June 05, 2017; Accepted: June 22, 2017; Published: June 23, 2017 Sciatica is one of the most common disorders affecting the peripheral nervous system, 90% of which is associated with a herniated disc and nerve compression. Vast majority of sciatica patients experience a favorable prognosis, with only ~30% experiencing a reoccurrence within their lifetime. Patients often present with unilateral lower extremity pain in the distribution of the L5 or S1 dermatome, originating from acute or chronic descent. Sciatica is traditionally diagnosed within patients presenting with primary complaints of unrelenting sharp pain, which travels profusely down the leg. Cases of mild to moderate sciatica are witnessed but at a much rarer occurrence, with patients presenting with mild to moderate pain and paresthesias [1-10]. Ordinary patients may present with or without neurological deficits such as numbness and weakness of the leg and/ or foot, in more severe cases patients may present with foot weakness causing difficulty and/or inability to ambulate. The etiology for sciatica is quite commonly a lumbar disc herniation, as briefly mentioned, that puts pressure upon the descending S1 nerve root. Magnetic resonance imaging (MRI) is typically utilized to obtain high resolution images leading to the diagnosis by which a physician identifies the offending agent compressing the nerve root. Given how commonly this pathology presents to primary care physicians and neurosurgeons, it is of no surprise that lumbar microdiscectomy remains as one of the most popular surgical procedures performed within the United States. Patients presenting with sciatica endure copious amounts of pain during most forms of physical activity, thus leading to their inability to work for extended periods of time. Utilization of healthcare resources and inability to work both integrate to cause significant depletion in healthcare resources while increasing treatment-costs and unemployment-subsidies all of which adversely affect the United States economic status [1-6].


Journal of Kidney Cancer and VHL | 2017

Management Strategies and Outcomes for VHL-related Craniospinal Hemangioblastomas

Christ Ordookhanian; Paul E. Kaloostian; Samer Ghostine; Philippe E. Spiess; Arnold B. Etame

Hemangioblastomas are rare and benign tumors accounting for less than 2% of all central nervous system (CNS) tumors. The vast majority of hemangioblastomas occur sporadically, whereas a small number of cases, especially in younger patients, are associated with Von Hippel–Lindau (VHL) syndrome. It is thought that loss of tumor suppressor function of the VHL gene results in stabilization of hypoxia-inducible factor alpha with downstream activation of cellular proliferative and angiogenic genes that promote tumorigenesis. VHL-related hemangioblastomas predominantly occur in the cerebellum and spine. Lesions are often diagnosed on contrast-enhanced craniospinal MRIs, and the diagnosis of VHL occurs through assessment for germline VHL mutations. Surgical resection remains the primary treatment modality for symptomatic or worrisome lesions, with excellent local control rates and neurological outcomes. Stereotactic radiotherapy can be employed in patients who are deemed high risk for surgery, have multiple lesions, or have non-resectable lesions. Given the tendency for development of either new or multiple lesions, close radiographic surveillance is often recommended for asymptomatic lesions.


Cureus | 2017

Improving C1-C2 Complex Fusion Rates: An Alternate Approach

Samer Ghostine; Paul E. Kaloostian; Christ Ordookhanian; Sean W Kaloostian; Parham Zarrini; Terrence Kim; Stephen Scibelli; Scott J Clark-Schoeb; Srinath Samudrala; Carl Lauryssen; Amandip S. Gill; Patrick Johnson

The surgical repair of atlantoaxial instabilities (AAI) presents complex and unique challenges, originating from abnormalities and/or trauma within the junction regions of the C1-C2 atlas-axis, to surgeons. When this region is destabilized, surgical fusion becomes of key importance in order to prevent spinal cord injury. Several techniques can be utilized to provide for the adequate fusion of the atlantoaxial construct. Nevertheless, many individuals have less than ideal rates of fusion, below 35%-40%, which also involves the C2 nerve root being sacrificed. This suboptimal and unavoidable iatrogenic complication results in the elevated probability of complications typically composed of vertebral artery injury. This review is a retrospective analysis of 87 patients from Cedars Sinai Medical Center in Los Angeles, California, who had the C1-C2 surgical fusion procedure performed within the time frame from 2001 to 2008, with a mean follow-up period of three years. These patients had presented with typical AAI symptoms of fatigability, limited mobility, and clumsiness. Diagnosis of C1-C2 instability was documented via radiographic studies, typically utilizing computed tomography (CT) scans or x-rays. All patients had bilateral C1 lateral masses and C2 pedicle screws. In addition, the C1-C2 joint was accessed by retracting the C2 nerve root superiorly and exposing the joint by utilizing a high-speed burr. The cavity that is developed within the joint is packed with local autologous bone from the cephalad resection of the C2 laminae. Fusion of the C1-C2 joint was achieved in all patients and a final follow-up was conducted approximately three years postoperative. Of the 87 patients, two presented with occipital headaches resulting from the C1 screws impinging on the C2 nerve root. The issue was rectified by removing instrumentation in both patients after documenting complete fusion via radiographic studies, with complete resolution of symptoms. No vertebral artery or spinal cord injuries were reported as a result of the minor complication. Overall, we aim to describe a safe and reliable alternative technique to fuse C1-C2 instability by focusing on intra-articular arthrodesis complementing instrumentation fixation. This methodology is advantageous from a biomechanical standpoint secondary to axial loading, as well as the large surface area available for arthrodesis. Additionally, this technique does not involve the resection of the C2 nerve root, resulting in low risk for vertebral artery or spinal cord injury.


World Neurosurgery | 2018

Taming the Opioid Epidemic: The National Institutes of Health HEAL Initiative

Christ Ordookhanian; Paul E. Kaloostian; Tobias A. Mattei


World Neurosurgery | 2018

“Dear Anesthesiologist, Please Don't Abandon Us”: Excessive Anesthesia Handovers and Adverse Perioperative Outcomes in Neurosurgery

Tobias A. Mattei; Christ Ordookhanian; Paul E. Kaloostian


Archive | 2018

Diffuse Axonal Injury: A Devastating Pathology

Christ Ordookhanian; Katherine Tsai; Sean W Kaloostian; PaulE. Kaloostian

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Samer Ghostine

Loma Linda University Medical Center

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Tobias A. Mattei

Eastern Maine Medical Center

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Arnold B. Etame

University of South Florida

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Philippe E. Spiess

University of South Florida

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Srinath Samudrala

University of Southern California

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Talia Vartanian

University of Southern California

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