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Studies

To explore Kaiser Permanente Northern California studies search keywords, find by program, find by specialty or find by study status.

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Rapid Analytics Unit

Return to work following arthroscopic partial meniscectomy in Workers’ Compensation patients

Zhiqiang Chen, Marilyn Kwan, Eric Elkin | Rapid Analytics Unit | 2026 Ongoing

Reducing Hospitalization and Healthcare Utilization through Optimizing Cardiac and Renal Protective Medications in Hospitalized Patients with CHF and AKI

Sijie Zheng, Cynthia Campbell, Lusine Gigoyan | Rapid Analytics Unit | 2026 Ongoing

​​The optimal outpatient follow-up time to minimize need to re-access acute care in neurological diagnoses

Sonam Mohan Andy Avins, Yuching Ni | Rapid Analytics Unit | 2026 Ongoing

Improving surgical shared decision making on repeat transurethral resection of bladder tumor for non-invasive and non-muscle invasive bladder cancer

William Tu, Marilyn Kwan | Rapid Analytics Unit | 2025 Ongoing

Very Early Mobility Safety after Acute Stroke Reperfusion Therapies

Sheila Chan, Julie Schmittdiel, Lusine Gigoyan | Rapid Analytics Unit | 2025 Ongoing

Cost of Microhematuria Workup Based on Contaminated Urinalysis Results

Aeen Asghar, Julie Schmittdiel, Michael Hartmann | Rapid Analytics Unit | 2025 Ongoing

Evaluation of the TPMG JAMM Measure

Amanjot Sethi, Andy Avins, Abigail Eaton | Rapid Analytics Unit | 2025 Ongoing

Risk associated with type of neuromuscular blockade in patients with chronic kidney disease

Kevin Ng, Mary Reed, Lusine Gigoyan | Rapid Analytics Unit | 2025 Ongoing

Is KP’s integrated care setting a “blue zone” for better health and lower mortality: a comparison of predicted mortality and preventable causes of death

Tori Finch, Doug Corley, Rika Alavi | Rapid Analytics Unit | 2025 Ongoing

Impact of structured reporting of incidental renal masses found on cross sectional imaging and ultrasound

Jay Belani, Andy Avins | Rapid Analytics Unit | 2025 Ongoing

Assessing the effect of a reduction in endoscopic clip usage during outpatient colonoscopy on post-colonoscopy bleeding and post-colonoscopy perforation

Gene Ma, Julie Schmittdiel, Lusine Gigoyan | Rapid Analytics Unit | 2025 Ongoing

Lung cancer risk of small incidental pulmonary nodules

Thomas Urbania, Cynthia Campbell, Michael Hartmann | Rapid Analytics Unit | 2024 Ongoing

Risk of Pancreatic Cancer in Indeterminate Pancreatic Cysts

Eleanor Ormsby, Marilyn Kwan, Michael Hartmann | Rapid Analytics Unit | 2024 Ongoing

Impact of a population health program on bone health and fracture risk in prostate cancer patients treated with androgen deprivation therapy

Michael Shulman, Andy Avins, Brandon Horton | Rapid Analytics Unit | 2024 Ongoing

Branch and Central Retinal Artery Occlusion – Natural History, Presentation Patterns, Associated Risk of Vascular Events, and Role of Thrombolysis in Management

Robin Vora, Mary Reed, Rika Alavi | Rapid Analytics Unit | 2024 Ongoing

Variance in management and outcomes among patients with severe hyponatremia

Dustin Mark, Mary Reed, Rika Alavi | Rapid Analytics Unit | 2024 | View Summary Completed

Safety of SGLT2 antagonist use in the periop / periprocedural period for non-emergent interventions.

Bradley Cohn, Julie Schmittdiel, Michael Hartmann | Rapid Analytics Unit | 2024 | View Summary Completed

Effectiveness of telephonic wellness coaching on post-operative smoking cessation rates

Jafer Jeelani, Julie Schmittdiel, Teresa Lin | Rapid Analytics Unit | 2024 | View Summary Completed

Improving antibiotic selection for urinary tract infection in the ambulatory setting

William Tu, Abigail Eaton | Rapid Analytics Unit | 2024 Ongoing

Impact of fundoscopic cameras on emergency department evaluation and management of patients with vision loss

Dana Sax, Mary Reed, Rika Alavi | Rapid Analytics Unit | 2024 | View Summary Completed

Early Developmental Screening and Treatment Engagement

Meghan Davignon, Cynthia Campbell, Abigail Eaton | Rapid Analytics Unit | 2023 | View Summary Completed

Skin Cancer Screening in Solid Organ Transplant Recipients

David Lee, Marilyn Kwan | Rapid Analytics Unit | 2023 | View Summary Completed

Improved Outcomes with Home-Based Cardiac Rehabilitation-Experience from a Large Integrated Heathcare System

Uma Vadlakonda, Mary Reed, Brandon Horton | Rapid Analytics Unit | 2023 | View Summary Completed

Vancomycin area under the curve-guided dosing and monitoring in the outpatient setting

Meredith Silverman, Cynthia Campbell, Rika Alavi | Rapid Analytics Unit | 2023 | View Summary Completed

Reducing Blood Culture Contamination and Subsequent Healthcare Reutilization in Pediatrics

Kelsey Childress, Marilyn Kwan, Michael Hartmann | Rapid Analytics Unit | 2023 | View Summary Completed

Perioperative VTE risk in total joint patients who had COVID-19

John Cox, Andy Avins, Lusine Gigoyan | Rapid Analytics Unit | 2023 | View Summary Completed

Dropless Cataract Surgery

Naveen Chandra, Marilyn Kwan, Rika Alavi | Rapid Analytics Unit | 2022 | View Summary Completed

Surgical Epilepsy Center Referral Time Within an Integrated Health Care Network

Josiah Ambrose, Cynthia Campbell | Rapid Analytics Unit | 2022 | View Summary Completed

Remote Patient Monitoring Assessment

Mehreen Khan, Mary Reed, Lusine Gigoyan | Rapid Analytics Unit | 2022 | View Summary Completed

Effect of Screening for Hepatocellular Carcinoma on cancer-related and all-cause mortality in patients with cirrhosis-a population-based case control study

Sreepriya Balasubramanian, Julie Schmittdiel, Michael Hartmann | Rapid Analytics Unit | 2022 | View Summary Completed

Improving Diagnostic Efficiency of Adult Neck Masses

Kevin Wang, Andy Avins, Bradley Frueh | Rapid Analytics Unit | 2022 Ongoing

Optimizing Acne Care: What is the Impact of Isotretinoin?

Veena Vanchinathan, Andy Avins, Michael Hartmann | Rapid Analytics Unit | 2022 | View Summary Completed

The impact of ACEs and resilience on Obstetric health outcomes

Carey Watson, Cynthia Campbell, Abigail Eaton | Rapid Analytics Unit | 2022 | View Summary Completed

Cancer outcomes with KPNC vs. national community averages: an overview study

Raymond Liu, Julie Schmittdiel, Liyan Liu | Rapid Analytics Unit | 2022 Completed

Trends in the use of computed tomographic cerebral angiography for emergency department patients with headache

Dustin Mark, Mary Reed, Brandon Horton | Rapid Analytics Unit | 2022 | View Summary Completed

Assessing the Impact of a Mobile Application Based Supervised Exercise Therapy (SET) Program for Peripheral Arterial Disease (PAD)

Nayan Sivamurthy, Julie Schmittdiel, Bradley Frueh | Rapid Analytics Unit | 2022 | View Summary Completed

Stroke EXPRESS: Transition to TNKase

Jeff Klingman, Abigail Eaton | Rapid Analytics Unit | 2022 | View Summary Completed

Integration of mobile health (mHealth) based interventions in mental health

Samuel Ridout, Cynthia Campbell, Theresa Lin, Kathryn Ridout and Honor Hsin | Rapid Analytics Unit | 2021 | View Summary Completed

Accuracy of Prenatal Detection of Clinically Significant Congenital Heart Disease Among Still- and Live-Births at Kaiser Permanente Northern California

Kavin Desai, Julie Schmittdiel, Rika Alavi | Rapid Analytics Unit | 2021 | View Summary Completed

Safety and Efficacy of Corticosteroid Choice in Trigger Finger Injection

Todd Theman, Julie Schmittdiel, Bradley Frueh | Rapid Analytics Unit | 2021 | View Summary Completed

Identifying Surgical Timing to Optimize Outcomes for Early-Stage Lung Cancer Surgery

Jeffrey Velotta, Julie Schmittdiel, Liyan Liu | Rapid Analytics Unit | 2021 Completed

Association of Nerve Blocks with Hospital Length of Stay for Surgical Abdominal Procedures

Jonathan Khersonsky, Cynthia Campbell, Rika Alavi | Rapid Analytics Unit | 2021 | View Summary Completed

Neurotrophic keratopathy: Incidence, presentation, utilization, and outcomes before adoption of corneal neurotization

Catherine J. Choi, Lisa Herrinton, Liyan Liu | Rapid Analytics Unit | 2021 | View Summary Completed

PAN #3: Efficacy and Value

Kourosh Kojouri, Lisa Herrinton, Teresa Lin | Rapid Analytics Unit | 2021 | View Summary Completed

Association Between Injected Corticosteroids and Risk for Influenza and COVID-19

Joshua Rittenberg, Julie Schmittdiel, Brandon Horton | Rapid Analytics Unit | 2020 | View Summary Completed

Outcomes of telemedicine in Ophthalmology

I-Hui (Elaine) Wu, Mary Reed, Bradley Frueh | Rapid Analytics Unit | 2020 | View Summary Completed

Assessing variation in the incidence of myocardial injury after non-cardiac surgery (MINS) across medical centers and over time

Edward Yap, Lisa Herrinton, Rika Alavi | Rapid Analytics Unit | 2020 | View Summary Completed

The Impact of California Shelter-In-Place on Incidence of Gynecologic Emergencies in a Community-Based Population

Eve Zaritsky, Andy Avins, Rika Alavi | Rapid Analytics Unit | 2020 | View Summary Completed

Incidence of outpatient thromboembolism in patients with SARS-CoV-2 infections

Nareg Roubinian, Julie Schmittdiel, Jenny Dusendang | Rapid Analytics Unit | 2020 | View Summary Completed

Epidemiologic Analysis of Chilblains Eruptions at the time of COVID19

Patrick McCleskey, Lisa Herrinton, Liyan Liu | Rapid Analytics Unit | 2020 | View Summary Completed

The impact of the use of anticoagulants and antiplatelets on the risk of hospitalization and mortality in patients with COVID-19

Ashok Pai, Gwendolyn Ho, Julie Schmittdiel, Jenny Dusendang | Rapid Analytics Unit | 2020 | View Summary Completed

How COVID Changed Our Practice: Telehealth in TPMG Surgical Cancer Care

Gillian Kuehner , Mary Reed, Teresa Lin | Rapid Analytics Unit | 2020 | View Summary Completed

COVID-19 Complications Are Not More Common Among Immunosuppressed Populations in KPNC

Fernando Velayos, Julie Schmittdiel, Jenny Dusendang | Rapid Analytics Unit | 2020 | View Summary Completed

Mental Health Service Demand in the face of COVID-19

Kathryn Ridout, Esti Iturralde, Rika Alavi | Rapid Analytics Unit | 2020 | View Summary Completed

Evaluating the impact of cancer on COVID-19 diagnoses and outcomes

Andrea Harzstark, Julie Schmittdiel, Archana Anantharaman, Jenny Dusendang | Rapid Analytics Unit | 2020 | View Summary Completed

Characteristics of ED Patients Who Test Positive for SARS-CoV-2 in a Community Health Setting

Dale Cotton, Mary Reed, Liyan Liu | Rapid Analytics Unit | 2020 | View Summary Completed

Characteristics and Clinical Trajectory of COVID-19 Patients Admitted from the Emergency Department

Dale Cotton, Mary Reed | Rapid Analytics Unit | 2020 | View Summary Completed

Natural history of body weight changes with gastrostomy feeding tube, jejunostomy feeding tube, esophageal stent, or no intervention in patients with esophageal cancer who start chemotherapy and chemoradiation

Jeffrey Velotta, Lisa Herrinton, Jenny Dusendang | Rapid Analytics Unit | 2019 | View Summary Completed

Implementation and Outcomes Following Regionalization of Adrenal Surgery

Reza Rahbari, Lisa Herrinton, Rika Alavi | Rapid Analytics Unit | 2019 | View Summary Completed

Delivery of Inpatient Pediatric Eating Disorder Care in a Large Integrated Health Care Delivery System

Josephine Lau, Julie Schmittdiel, Abigail Eaton | Rapid Analytics Unit | 2019 | View Summary Completed

Rapid case ascertainment and review for bladder cancer

Andrea Harzstark, Liyan Liu | Rapid Analytics Unit | 2019 | View Summary Completed

Benefits of Hepatitis C Virus Cure

Varun Saxena, Julie Schmittdiel, Brandon Horton | Rapid Analytics Unit | 2019 | View Summary Completed

Outcomes of laparoscopic pediatric hernia repair compared with the open approach

Albert Chong, Lisa Herrinton, Helene Fevrier | Rapid Analytics Unit | 2019 | View Summary Completed

Identification and management of familial hypercholesterolemia in an integrated health care delivery system.

Richard Birnbaum | Rapid Analytics Unit | 2019 | View Summary Completed

Improving Human Papilloma Virus Immunization Rates

Janet Lai, Kevin Wang, Andy Avins, Abigail Eaton | Rapid Analytics Unit | 2019 | View Summary Completed

ViTelemedicine (Compared to in-Person Gastroenterology Visits) Had High Patient Satisfaction and Comparable Physician Decision-Making

Craig Munroe, Doug Corley, Teresa Lin | Rapid Analytics Unit | 2019 | View Summary Completed

Implementation of Familial Hypercholesterolemia and template transition protocol

Richard Birnbaum, Andy Avins, Brandon Horton | Rapid Analytics Unit | 2019 Completed

Implementation of Evidence-Based Surgery for Pediatric Hernia Repair

Albert Chong, Lisa Herrinton, Rika Alavi | Rapid Analytics Unit | 2019 | View Summary Completed

Evaluation of structured reporting of lung nodules detected on chest CT

Tom Urbania, Lisa Herrinton, Jenny Dusendang | Rapid Analytics Unit | 2019 | View Summary Completed

Manual of Procedures and Pilot-testing a Cluster Randomized Study of the Effectiveness of a Deprescribing Intervention (aka Deprescribing Phase II)

Maisha Draves, Lisa Herrinton | Rapid Analytics Unit | 2019 Completed

Implementation of Post-Mastectomy Home Recovery Program in a Large, Integrated Health Delivery System

Brooke Vuong, Julie Schmittdiel, Jenny Dusendang | Rapid Analytics Unit | 2019 | View Summary Completed

An Organized Hepatitis B Surveillance Program increases Patient Identification and Optimizes Management

Krisna Chai, Joanna Ready, Andy Avins, Brandon Horton | Rapid Analytics Unit | 2019 | View Summary Completed

Rapid Case Ascertainment for pancreatic cancer

Tilak Sundaresan, Liyan Liu | Rapid Analytics Unit | 2019 | View Summary Completed

Impact of Opioid Safety Initiative Education on Emergency Department Opioid Prescribing

Mamata Kene, Mary Reed, Abigial Eaton | Rapid Analytics Unit | 2019 | View Summary Completed

Time Trends in Therapies and Outcomes for a Community-based Population of Adults with Acute Myeloid Leukemia, 2013-2017

Lisa Law, Lisa Herrinton | Rapid Analytics Unit | 2018 | View Summary Completed

Changes in utilization, staging, and treatment after implementation of regionalized care for upper gastrointestinal cancer

Robert Li, Lisa Herrinton, Teresa Lin | Rapid Analytics Unit | 2018 | View Summary Completed

The association between ERAS implementation and changes in post-discharge opioid use

Vinnie Liu, Andy Avins, Abigail Eaton | Rapid Analytics Unit | 2017 | View Summary Completed

Risk factors for conversion of hip arthroscopy to total hip arthroplasty

David Ding, Adrian Hinman, Andy Avins, Brandon Horton | Rapid Analytics Unit | 2017 | View Summary Completed

Hepatocellular carcinoma and interventional radiology

Maud Morshedi, Lisa Herrinton, Rika Alavi | Rapid Analytics Unit | 2017 | View Summary Completed

Mesothelioma: rapid case ascertainment

Jennifer (Marie) Suga, Lisa Herrinton | Rapid Analytics Unit | 2017 Completed

Tele-dermatology and care processes

Sangeeta Marwaha, Lisa Herrinton | Rapid Analytics Unit | 2017 Completed

Epithelial ovarian cancer: rapid case ascertainment

Chunnan Liu, Lisa Herrinton | Rapid Analytics Unit | 2017 Completed

An evaluation of the StrokeEXPRESS phase II – thrombectomy program

Mai Nguyen-Huynh, Andy Avins | Rapid Analytics Unit | 2017 | View Summary Completed

Minimally invasive esophagectomy

Simon Ashiku, Andy Avins, Brandon Horton | Rapid Analytics Unit | 2017 | View Summary Completed

T- and NK- cell lymphomas: rapid case ascertainment

Lisa Law, Lisa Herrinton | Rapid Analytics Unit | 2017 | View Summary Completed

Gastric cancer: rapid case ascertainment

Yan Li, Lisa Herrinton | Rapid Analytics Unit | 2016 Completed

Hodgkin’s lymphomas: rapid case ascertainment

Antoine Sayegh, Lisa Herrinton | Rapid Analytics Unit | 2016 Completed

All-Stage melanoma: rapid case ascertainment

Tatjana Kolevska, Lisa Herrinton | Rapid Analytics Unit | 2016 Completed

KPNC Stroke EXPRESS program: analysis and dissemination

Mai Nguyen-Huynh, Andy Avins | Rapid Analytics Unit | 2016 Completed

Surgical resection of hepatic metastasis in patients with colorectal cancer

CK Chang, Andy Avins | Rapid Analytics Unit | 2016 Completed

Sarcoma: rapid case ascertainment

Minggui Pan, Lisa Herrinton | Rapid Analytics Unit | 2015 Completed

Cancer Wizard

David Baer, Tracy Lieu | Rapid Analytics Unit | 2015 Completed

Testicular cancer: rapid case ascertainment

Andrea Harzstark, Lisa Herrinton | Rapid Analytics Unit | 2015 Completed

Efficient triaging of adnexal masses (3 phases)

Betty Suh-Burgmann, Lisa Herrinton | Rapid Analytics Unit | 2015 Completed

Proposal for evaluation of an asthma sensor system

Imran Junaid, Tracy Lieu | Rapid Analytics Unit | 2015 Completed

Familial hypercholesterolemia II – manuscript

Richard Birnbaum, Andy Avins, Brandon Horton | Rapid Analytics Unit | 2013

Deprescribing: phase 1 activities to support development and testing of the intervention and its supporting information system

Maisha Draves, Lisa Herrinton | Rapid Analytics Unit | 2013

Breast reconstruction surgery: comparison of three techniques

Dan Jacobs, Lisa Herrinton | Rapid Analytics Unit | 2013

Physician Researcher Program proposal development

Doug Corley, Andy Avins & Lisa Herrinton | Rapid Analytics Unit | 2013

COVID-19 Lattice Swab Evaluation Study

Doug Corley | Rapid Analytics Unit | 2013

Incidence of peri-implant fracture in the humerus

Zachary Mallon | Rapid Analytics Unit | 2013

Improving Preventive Health Efforts Among Young Adults

Nicole Tran | Rapid Analytics Unit | 2013

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