Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where John Massman is active.

Publication


Featured researches published by John Massman.


Journal of The American College of Surgeons | 2015

Small Bowel Obstruction Is a Surgical Disease: Patients with Adhesive Small Bowel Obstruction Requiring Operation Have More Cost-Effective Care When Admitted to a Surgical Service

Phillip Bilderback; John Massman; Ryan K. Smith; Danielle La Selva; W. Scott Helton

BACKGROUND Adhesive small bowel obstruction (ASBO), although a potential surgical emergency, is increasingly being managed by medical hospitalists due to the likelihood these patients will not require operation. However, the value of care delivered by medical hospitalists to patients with ASBO has not been reported. STUDY DESIGN We hypothesized that patients admitted to the medical hospitalist service (MHS) for presumed ASBO have increased length of stay (LOS) and charges compared with patients admitted to the surgical service (SS). There were 555 consecutive admissions with presumed ASBO from 2008 to 2012; these were reviewed and grouped according to admitting service and whether an operation was performed. Group medians were compared and multivariate analysis was performed to identify variables independently associated with increased LOS, time to operation (TTO), and charges. RESULTS Median LOS among patients whose ASBO resolved nonoperatively was similar for those on SS and MHS (2.85 days vs 2.98 days; p = 0.49). In patients without nonoperative resolution of ASBO, those admitted to MHS had longer median LOS when compared with those admitted to SS (9.57 days vs 6.99 days; p = 0.002) and higher median charges (


Journal of Surgical Oncology | 2018

Initiation of adjuvant therapy following surgical resection of pancreatic ductal adenocarcinoma (PDAC): Are patients from rural, remote areas disadvantaged?

Kimberly A. Bertens; John Massman; Scott Helton; Samuel Garbus; Margaret M. Mandelson; Bruce S. Lin; Vincent J. Picozzi; Thomas Biehl; Adnan Alseidi; Flavio G. Rocha

38,800 vs


Urology Practice | 2016

Selecting an Electronic Data Capture System

Cameron B. Alavi; John Massman

30,100; p = 0.025). Patients admitted to MHS who had an operation, had a greater median TTO than operative patients on SS (51.72 hours vs 8.4 hours; p < 0.001). Multivariate analysis did not identify factors independently predictive of increased LOS, TTO, or charges. CONCLUSIONS Adhesive small bowel obstruction patients are treated in a heterogeneous fashion in our hospital, causing disparate outcomes depending on admitting service when patients undergo operation. Admitting all suspected ASBO patients to SS has the potential to dramatically decrease LOS and reduce waste in those requiring operation, thereby reducing health care expenditures.


The Journal of Urology | 2016

Prostate Needle Biopsy Outcomes in the Era of the U.S. Preventive Services Task Force Recommendation against Prostate Specific Antigen Based Screening

John S. Banerji; Erika M. Wolff; John Massman; Katherine Odem-Davis; Christopher R. Porter; John M. Corman

Although race and socioeconomic status have been shown to affect outcomes in pancreatic ductal adenocarcinoma (PDAC), the impact of rural residence on the delivery of adjuvant therapy (AT) has not been studied.


The Journal of Urology | 2017

MP43-20 RATES OF NON-DEFINITIVE MANAGEMENT FOR LOW AND INTERMEDIATE RISK PROSTATE CANCER ARE SIMILAR BETWEEN AFRICAN AMERICANS AND CAUCASIANS

John R. Burns; John Paul Flores; Mazen Alsinnawi; Sydney Akapame; John Massman; Christopher R. Porter

Introduction: Investigators encounter numerous challenges when initiating a research project, including selecting an appropriate electronic data capture system. Options range from simple stand‐alone spreadsheets to full service, relational databases controlled by certified database administrators. We present an overview of the issues to consider when selecting an electronic data capture system and a survey of available software solutions. We also discuss how to select an electronic data capture system that best meets the data management needs of the study. Methods: We compared software solutions based on several regulatory and budgetary issues that should be considered by investigators. Regulatory issues include HIPAA (Health Insurance Portability and Accountability Act), case report forms and adverse event reports. Technology costs, ease of use and expertise of personnel are examples of budgetary matters. Results: Stand‐alone spreadsheets require extra attention to regulatory matters but are intuitive to investigators. Large‐scale relational database management systems can be configured for all regulatory matters but require dedicated effort from a certified database administrator, greatly increasing data management costs. Low cost, server based solutions sacrifice some of the flexibility of a relational database management system in exchange for being extremely easy to design and manage. Software as a service is a scalable third party solution. Cloud based systems are a new solution that are not widely used in institutional review board approved research. Conclusions: Due to the extensive resources required to implement an electronic data capture system it is important to carefully analyze and understand what options are available. In this way the most informed choice can be made.


The Journal of Urology | 2017

MP43-08 IMPACT OF HIGH VOLUME CENTERS ON MANAGEMENT OF HIGH AND LOW RISK PROSTATE CANCER

John Burns; John Paul Flores; Mazen Alsinnawi; Sydney Akapame; Elliot Blau; John Massman; Christopher R. Porter


The Journal of Urology | 2017

MP43-04 IMPACT OF USPSTF RECOMMENDATION ON RATES OF NON-DEFINITIVE MANAGEMENT IN LOW RISK PROSTATE CANCER UTILIZING THE NATIONAL CANCER DATABASE

John Burns; John Paul Flores; Mazen Alsinnawi; Sydney Akapame; John Massman; Christopher R. Porter


Journal of Clinical Oncology | 2017

Adjuvant therapy (AT) following resection of pancreatic ductal adenocarcinoma (PDAC): Are patients from rural, remote areas disadvantaged?

Kimberly Bertens; John Massman; Samuel Garbus; Margaret T. Mandelson; Bruce S. Lin; Vincent J. Picozzi; Adnan Alseidi; Thomas Biehl; William S. Helton; Flavio G. Rocha


The Journal of Urology | 2016

MP04-09 DOES A CLEAR UNDERSTANDING OF LIFE EXPECTANCY INCREASE DECISIONAL CONFLICT AND ANXIETY FOR MEN WITH NEWLY DIAGNOSED PROSTATE CANCER?

Mazen Alsinnawi; April Slee; John S. Banerji; Kathryn Dahl; Sydney Akapame; John Massman; Erika M. Wolff; John M. Corman


The Journal of Urology | 2016

PD17-06 DOES EMPLOYING A DECISION AID IMPROVE PATIENT EDUCATION AND PERCEPTION OF QUALITY OF CARE

John S. Banerji; Erika M. Wolff; April Slee; Sydney Akapame; Kathryn Dahl; Evan Auerbach; John Massman; Michael C. Soung; Kim R. Pittenger; John M. Corman

Collaboration


Dive into the John Massman's collaboration.

Top Co-Authors

Avatar

Erika M. Wolff

University of Southern California

View shared research outputs
Top Co-Authors

Avatar

Christopher R. Porter

Virginia Mason Medical Center

View shared research outputs
Top Co-Authors

Avatar

Mazen Alsinnawi

Virginia Mason Medical Center

View shared research outputs
Top Co-Authors

Avatar

John S. Banerji

Virginia Mason Medical Center

View shared research outputs
Top Co-Authors

Avatar

Alvaro Lucioni

Virginia Mason Medical Center

View shared research outputs
Top Co-Authors

Avatar

John M. Corman

Virginia Mason Medical Center

View shared research outputs
Top Co-Authors

Avatar

John Paul Flores

Virginia Mason Medical Center

View shared research outputs
Top Co-Authors

Avatar

Kathleen C. Kobashi

Virginia Mason Medical Center

View shared research outputs
Top Co-Authors

Avatar

Adnan Alseidi

University of Illinois at Chicago

View shared research outputs
Top Co-Authors

Avatar

Bruce S. Lin

Virginia Mason Medical Center

View shared research outputs
Researchain Logo
Decentralizing Knowledge