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14 results on '"Michael Ansstas"'

1. Mutation clearance and complete radiologic resolution of immunotherapy relapsed metastatic melanoma after treatment with nivolumab and olaparib in a patient with homologous recombinant deficiency: any role for PARP inhibitors and checkpoint blockade?

Author

Michael Ansstas, George Ansstas, John Visconti, and Karam Khaddour

Subjects
Mutation, business.industry, Poly ADP ribose polymerase, medicine.medical_treatment, Hematology, Immunotherapy, medicine.disease_cause, law.invention, Olaparib, Blockade, chemistry.chemical_compound, Oncology, chemistry, law, Recombinant DNA, Homologous chromosome, Cancer research, Medicine, Nivolumab, business
Published
2021
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2. Tu1159 MULTICENTER EVALUATION OF THE PERFORMANCE OF PARTIALLY VERSUS FULLY COVERED SELF-EXPANDING METAL STENTS (SEMS) AND IMPACT ON NUTRITIONAL STATUS IN PATIENTS WITH MALIGNANT ESOPHAGEAL OBSTRUCTION

Author

Gregory G. Ginsberg, Daniel Mullady, Vinay Chandrasekhara, Sherif Elhanafi, Kimberly A. Forde, Thomas Hollander, Michael L. Kochman, Michael Ansstas, Gabriel Lang, Vladimir Kushnir, Nuzhat A. Ahmad, Jeffrey A. Elsner, Michael Rajala, and Koushik K. Das

Subjects
medicine.medical_specialty, business.industry, Gastroenterology, medicine, Radiology, Nuclear Medicine and imaging, Nutritional status, In patient, business, Esophageal Obstruction, Surgery
Published
2018
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4. Incidence of Sedation-Related Complications With Propofol Use During Advanced Endoscopic Procedures

Author

Robert M. Hovis, Lawrence Waldbaum, Michael Ansstas, Sreenivasa S. Jonnalagadda, Gregory A. Cote, Steven A. Edmundowicz, Riad R. Azar, Daniel Mullady, and Dayna S. Early

Subjects
Adult, Male, Endoscopic ultrasound, Enteroscopy, medicine.medical_specialty, Attitude of Health Personnel, medicine.medical_treatment, Sedation, Body Mass Index, Sex Factors, Risk Factors, medicine, Humans, Intubation, Endoscopy, Digestive System, Prospective Studies, Propofol, Aged, Anesthetics, Endoscopic retrograde cholangiopancreatography, Hepatology, medicine.diagnostic_test, business.industry, Incidence, Gastroenterology, Middle Aged, Endoscopy, Surgery, Anesthesia, Female, Deep Sedation, medicine.symptom, Respiratory Insufficiency, Airway, business, medicine.drug
Abstract

Propofol is an effective sedative in advanced endoscopy. However, the incidence of sedation-related complications is unclear. We sought to define the frequency of sedation-related adverse events, particularly the rate of airway modifications (AMs), with propofol use during advanced endoscopy. We also evaluated independent predictors of AMs.Patients undergoing sedation with propofol for advanced endoscopic procedures, including endoscopic retrograde cholangiopancreatography, endoscopic ultrasound, and small-bowel enteroscopy, were studied prospectively. Sedative dosing was determined by a certified registered nurse anesthetist with the goal of achieving deep sedation. Sedation-related complications included AMs, hypoxemia (pulse oximetry [SpO(2)]90%), hypotension requiring vasopressors, and early procedure termination. AMs were defined as chin lift, modified face mask ventilation, and nasal airway. We performed a regression analysis to compare characteristics of patients requiring AMs (AM+) with those who did not (AM-).A total of 799 patients were enrolled over 7 months. Procedures included endoscopic ultrasound (423), endoscopic retrograde cholangiopancreatography (336), and small-bowel enteroscopy (40). A total of 87.2% of patients showed no response to endoscopic intubation. Hypoxemia occurred in 12.8%, hypotension in 0.5%, and premature termination in 0.6% of the patients. No patients required bag-mask ventilation or endotracheal intubation. There were 154 AMs performed in 115 (14.4%) patients, including chin lift (12.1%), modified face mask ventilation (3.6%), and nasal airway (3.5%). Body mass index, male sex, and American Society of Anesthesiologists class of 3 or higher were independent predictors of AMs.Propofol can be used safely for advanced endoscopic procedures when administered by a trained professional. Independent predictors of AMs included male sex, American Society of Anesthesiologists class of 3 or higher, and increased body mass index.

Published
2010
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5. S1445: A Randomized Clinical Trial Comparing the Use of a Pancreatic Duct Stent or a Pancreatic Duct Guidewire to Facilitate Bile Duct Cannulation

Author

Christine E. Hovis, Gregory A. Cote, Srinadh Komanduri, Sreenivasa S. Jonnalagadda, Riad R. Azar, Michael Ansstas, Steven A. Edmundowicz, Daniel Mullady, and Rajesh N. Keswani

Subjects
Pancreatic duct, medicine.medical_specialty, Bile duct, business.industry, General surgery, Gastroenterology, Surgery, law.invention, medicine.anatomical_structure, Randomized controlled trial, law, Pancreatic duct stent, medicine, Radiology, Nuclear Medicine and imaging, business
Published
2010
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6. Endoscopic Treatment of Pancreatic Fluid Collections: Role for Debridement with a Nasocystic Drain At the Time of Initial Endoscopy

Author

Daniel Mullady, Michael Ansstas, Sreenivasa S. Jonnalagadda, Gregory A. Cote, Riad R. Azar, and Steven A. Edmundowicz

Subjects
medicine.medical_specialty, Pancreatic Fluid, medicine.diagnostic_test, business.industry, Debridement (dental), medicine.medical_treatment, Gastroenterology, medicine, Radiology, Nuclear Medicine and imaging, business, Endoscopic treatment, Surgery, Endoscopy
Published
2009
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7. 714 A Multicenter, Prospective Comparison of Standard Definition White Light (SDWL) Colonoscopy, High Definition White Light (HDWL) Colonoscopy and Narrow Band Imaging (NBI) Without Magnification in the Real-Time Characterization of Small Polyps

Author

Vikas Singh, Steven A. Edmundowicz, Sachin Wani, Amit Rastogi, Srinivas Gaddam, Michael Ansstas, Dayna S. Early, Prateek Sharma, Neil Gupta, Sreenivasa S. Jonnalagadda, Ajay Bansal, and Christine E. Hovis

Subjects
medicine.medical_specialty, Narrow-band imaging, Hepatology, medicine.diagnostic_test, business.industry, Gastroenterology, Colonoscopy, Magnification, Characterization (materials science), Standard definition, Internal medicine, medicine, White light, High definition, Nuclear medicine, business
Published
2010
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8. S1544: Comparison of Standard Definition White Light (SD-WL), High Definition White Light (HD-WL), and Narrow Band Imaging (NBI) Colonoscopy: Impact on Surveillance Interval Recommendations

Author

Vikas Singh, Ajay Bansal, Neil Gupta, Sachin Wani, Amit Rastogi, Dayna S. Early, Michael Ansstas, Prateek Sharma, Srinivas Gaddam, Sreenivasa S. Jonnalagadda, Steven A. Edmundowicz, and Christine E. Hovis

Subjects
Narrow-band imaging, Standard definition, medicine.diagnostic_test, business.industry, Gastroenterology, White light, Medicine, Colonoscopy, Interval (graph theory), High definition, Radiology, Nuclear Medicine and imaging, business, Nuclear medicine
Published
2010
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9. 1080c: A Multicenter, Prospective, Randomized Controlled Trial Comparing Standard Definition White Light (SDWL), High Definition White Light (HDWL) and Narrow Band Imaging (NBI) Colonoscopy for the Detection of Colon Polyps and Real Time Prediction of Histology

Author

Michael Ansstas, Dayna S. Early, Amit Rastogi, Vikas Singh, Sachin Wani, Steven A. Edmundowicz, Srinivas Gaddam, Christine E. Hovis, Prateek Sharma, Neil Gupta, Sreenivasa S. Jonnalagadda, and Ajay Bansal

Subjects
medicine.medical_specialty, medicine.diagnostic_test, business.industry, Gastroenterology, Colonoscopy, Histology, Real time prediction, medicine.disease, Surgery, Colon polyps, law.invention, Randomized controlled trial, Standard definition, law, medicine, White light, High definition, Radiology, Nuclear Medicine and imaging, Radiology, business
Published
2010
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12. Deep Sedation in Advanced Endoscopy: Frequency and Clinical Characteristics of Patients Who Require Airway Modifications

Author

Robert M. Hovis, Gregory A. Cote, Michael Ansstas, Riad R. Azar, Steven A. Edmundowicz, Sreenivasa S. Jonnalagadda, Lawrence Waldbaum, and Daniel Mullady

Subjects
medicine.medical_specialty, medicine.diagnostic_test, business.industry, Anesthesia, Sedation, Gastroenterology, medicine, Radiology, Nuclear Medicine and imaging, medicine.symptom, Airway, business, Endoscopy, Surgery
Published
2009
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13. Fiducial Placement for Stereotactic Radiation Using Endoscopic Ultrasound: Feasibility Using a Marker Compatible with a Standard 22 Gauge FNA Needle

Author

Gregory A. Cote, Parag J. Parikh, Jeffrey D. Bradley, Michael Ansstas, and Riad R. Azar

Subjects
Endoscopic ultrasound, medicine.medical_specialty, Stereotactic radiation, medicine.diagnostic_test, business.industry, Gauge (instrument), Gastroenterology, medicine, Radiology, Nuclear Medicine and imaging, Radiology, business, Fiducial marker
Published
2009
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14. Risk of Post-ERCP Pancreatitis with Placement of Self-Expandable Metallic Stents: A Retrospective, Cohort Analysis

Author

Michael Ansstas, Riad R. Azar, Daniel Mullady, Nitin Kumar, Sreenivasa S. Jonnalagadda, Andrew R. Reinink, Steven A. Edmundowicz, and Gregory A. Cote

Subjects
medicine.medical_specialty, Self-expandable metallic stent, business.industry, Gastroenterology, Medicine, Radiology, Nuclear Medicine and imaging, Retrospective cohort study, Post ercp pancreatitis, business, Surgery
Published
2009
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