- Spine and Intervertebral Disc Pathology
- Spinal Fractures and Fixation Techniques
- Pelvic and Acetabular Injuries
- Cervical and Thoracic Myelopathy
- Shoulder Injury and Treatment
- Liver Disease Diagnosis and Treatment
- Cardiac, Anesthesia and Surgical Outcomes
- Hip disorders and treatments
- Shoulder and Clavicle Injuries
- Liver Disease and Transplantation
- Orthopedic Surgery and Rehabilitation
- Spinal Hematomas and Complications
- Total Knee Arthroplasty Outcomes
- Orthopedic Infections and Treatments
- Anesthesia and Pain Management
- Radiology practices and education
- Biliary and Gastrointestinal Fistulas
- Hepatocellular Carcinoma Treatment and Prognosis
- Opioid Use Disorder Treatment
- Renal and Vascular Pathologies
- Cerebrovascular and Carotid Artery Diseases
- Surgical Simulation and Training
- Prostate Cancer Diagnosis and Treatment
- Amoebic Infections and Treatments
- Musculoskeletal pain and rehabilitation
University of Massachusetts Chan Medical School
2025
Northwell Health
2024
Feinstein Institute for Medical Research
2024
Columbia University Irving Medical Center
1994-2024
University of Arizona
2024
Icahn School of Medicine at Mount Sinai
2024
University of Chicago Medical Center
2015-2023
University of Chicago
2015-2023
Beaumont Hospital
2004-2023
Columbia University
1991-2023
Study Design. A prospective longitudinal study was conducted to evaluate dysphagia after anterior cervical spine surgery. Objectives. To the incidence and natural history of surgery, identify risk factors for development postoperative dysphagia. Summary Background Data. The literature contains only retrospective evaluations wide range has been reported in these studies. Methods. Altogether, 249 consecutive patients undergoing surgery were eligible study. These contacted 1, 2, 6, 12 months...
PURPOSE: To determine whether computed tomographic (CT) scans and attenuation measurements on contrast material–enhanced nonenhanced CT could be used to characterize adrenal masses, in particular, these lesions by using washout characteristics at contrast-enhanced CT. MATERIALS AND METHODS: Eighty-six patients (49 men, 37 women; age range, 29–86 years; mean age, 72 years) with 101 depicted underwent delayed (mean, 9 minutes) enhanced scanning. Seventy-eight also Mean diameter of the benign...
Objective: To compare the incidence, prevalence, and rate of improvement dysphagia in patients undergoing anterior cervical spine surgery with two different instrumentation designs. Methods: The study subjects were 156 consecutive plate fixation. We compared incidence among groups both produced by same manufacturer (Medtronic Danek); Atlantis has thicker wider dimensions than Zephir plate. Dysphagia evaluations performed prospectively telephone interviews at 1, 2, 6, 12, 24 months following...
Background— The diagnostic and prognostic values of plasma B-type natriuretic peptide (BNP) testing are established. However, the range BNP levels present in setting chronic, stable systolic heart failure (HF) is unclear. Methods Results— We followed up 558 consecutive ambulatory patients with HF (left ventricular ejection fraction <50%) treated at a specialized outpatient clinic between November 2001 February 2003. Retrospective chart review was performed to determine clinical functional...
This study investigated metabolic and nutritional factors in association with athletic menstrual dysfunction (AMD). Three groups of women were studied: amenorrheic runners (amenorrheic), eumenorrheic (eumenorrheic), sedentary controls (sedentary). Amenorrheic similar age, weight, percent body fat by hydrodensitometry, training pace mileage, best 10 km race time, years running, maximal oxygen consumption. When adjusted for weight or fat-free mass analysis covariance, RMR was significantly...
In Brief Study Design. A retrospective, consecutive case study of 1571 pediatric patients who underwent spinal deformity surgery and had minimum 2-year follow-up. Objective. To identify (1) the rate infection after surgery; (2) number surgeries required to treat a postoperative (3) percentage with require implant removal quantify effect on deformity; (4) microbiology infections surgery. Summary Background Data. Several previous reports have discussed rates for deformity. No quantified...
Propionibacterium acnes, which normally resides in the skin, is known to play a role surgical site infection orthopaedic surgery. Studies have suggested persistence of propionibacteria on skin surface, with rates positive cultures ranging from 7% 29% after preparation. However, as organisms reside dermal layer, these studies may underestimate true prevalence We hypothesized that, preparation, viable remains dermis at much higher rate than previously reported.Ten healthy male volunteers...
Surgical site infection after spine surgery is a well-known complication that can result in poor outcomes, arthrodesis-site nonunion, and neurological injury. We hypothesized higher surgical invasiveness score will increase the risk for following surgery.Data were examined from patients undergoing any type of spinal January 1, 2003, to December 31, 2004, at two academic hospitals. The index previously validated instrument accounts number vertebral levels decompressed, arthrodesed, or...
We present a case of COVID-19 hepatitis in living donor liver allograft recipient whose subsequently tested positive for COVID-19. The patient is female infant with biliary atresia (failed Kasai procedure). She recovered well, improving function tests 4 days. On postoperative day the developed respiratory distress and fever. testing (polymerase chain reaction) was positive. Liver test results increased approximately 5-fold. biopsy showed moderate acute prominent clusters apoptotic...
Sotatercept is an activin receptor type IIA-Fc (ActRIIA-Fc) fusion protein that improves cardiopulmonary function in patients with pulmonary arterial hypertension (PAH) by selectively trapping activins and growth differentiation factors. However, the cellular molecular mechanisms of ActRIIA-Fc action are incompletely understood. Here, we determined through genome-wide expression profiling inflammatory immune responses prominently upregulated lungs a Sugen-hypoxia rat model severe...
PURPOSE: To retrospectively evaluate gastrostomy placement in patients with amyotrophic lateral sclerosis (ALS) to determine the insertion method of choice. MATERIALS AND METHODS: During 3½ years, 36 ALS (19 men, 17 women; mean age, 54 years; age range, 37–69 years) underwent gastrostomy. Twenty were primarily referred for percutaneous endoscopic (PEG) and 16 radiologic (PRG). Gastrostomy method, success rate each technique, reason procedure failure reviewed patient. Forced vital capacity...
Background: The sagittal diameter of the cervical spinal canal is clinical importance in traumatic, degenerative, and inflammatory conditions. A small has been associated with an increased risk injury; however, there a lack reliable normative data on diameters different age groups United States population. purpose this study was to use direct measurement skeletal specimens determine spectrum canal, frequency stenosis general population, prevalence for groups, races, sexes. Methods: Four...
In Brief Study Design. Observational study with retrospective computerized tomography (CT) angiography analysis. Objective. The purpose of this is to examine the vertebral artery's course in V2 segment and define anatomic variations adult population using CT angiography. Summary Background Data. artery (VA) usually extends from transverse processes C6–C2; however, presence abnormal VA has been reported. These may predispose a patient higher risk iatrogenic vascular injury during anterior...
A total of 709 skeletally mature atlas specimens were obtained from the Hamann Todd Collection at Cleveland Museum Natural History. Using digital caliper, thickness vertebral artery groove was measured to determine feasibility potential screw placement.To insertion into lateral mass via posterior arch.The originally described starting point for screws, base mass, can be associated with excessive bleeding and irritation greater occipital nerve. In order avoid such problems, we routinely start...