14 April 2009

Two Models of Medical Error Reduction Programs in Radiation Oncology



Two Models of Medical Error Reduction Programs in Radiation Oncology
by
Ed Kline
RadPhysics Services LLC
Albuquerque, NM, © RPS


Introduction

* This presentation describes the design, implementation, and results of two QA/medical error reduction programs
* Both programs are designed for
o Reducing preventable systems-related medical errors (i.e., sentinel events, “near misses”)
o Preventing violations of regulatory requirements (i.e., State/NRC)
o Ensuring compliance with recommended standards (i.e., JCAHO, ACR, ACRO, etc.)

History

* Institute of Medicine (IOM) report5
o Focused a great deal of attention on the issue of medical errors and patient safety
o 44,000 to 98,000 deaths per year in U.S. hospitals each year as the result of medical errors
o 10,000 deaths per year in Canadian hospitals
o Exceeds annual death rates from road accidents, breast cancer, and AIDS combined in U.S.


To Err is Human: Building a Safer Health System.


* Key legislation
o Patient Safety Quality Improvement Act9
+ Certifies patient safety organizations in each State to collect data and report on medical errors
o State Patient Safety Centers
+ In past 5 years, 6 states have enacted legislation supporting creation of state patient safety centers
+ 5 of the 6 states now operate patient safety centers
+ Separate mandatory reporting systems for serious adverse events
+ Centers are housed within state regulatory agencies



Reducing Medical Errors, Issue Module, Kaiser EDU.org, Accessed through www.kaiseredu.org.

* Patient safety centers include10
o The Florida Patient Safety Corporation
o The Maryland Patient Safety Center
o The Betsy Lehman Center for Patient Safety and Medical Error Reduction (Massachusetts)
o The New York Center for Patient Safety
o The Oregon Patient Safety Commission
o The Pennsylvania Patient Safety Authority


State Patient Safety Centers: A New Approach to Promote Patient Safety, The Flood Tide Forum, National Academy for State Health Policy, 10/04, Accessed through www.nashp.org.

Read more...

Principles of Radiation Oncology



Principles of Radiation Oncology
by
Michael Underbrink, MD
Anna Pou, MD

Introduction

* Increasing use for head and neck cancer
* Combined or as single modality
* Outline basic principles, radiobiology
* General treatment approach
* Common complications

Radiation Physics

* Basis – ionizing particles interact with cellular molecules
* Relies on transfer of energy created by secondary charged particles (usually electrons)
* Break chemical bonds
* External beam vs. Brachytherapy
* Radiant energy is discrete yet random

External Beam Irradiation

* Dual-energy linear accelerators generate:
o Low energy megavoltage x-rays (4-6 MeV)
o High energy x-rays (15-20 MeV)
o Photon energy
* Particle Radiation (electrons, protons, neutrons)
* Photon therapy advantages
o Skin sparing, penetration, beam uniformity
* Head and Neck sites – 4-6 MeV x-ray or Co60 gamma ray radiation

External Beam Irradiation
Brachytherapy

* Radioactive source in direct contact with tumor
o Interstitial implants, intracavitary implants or surface molds
* Greater deliverable dose
* Continuous low dose rate
* Advantage for hypoxic or slow proliferators
* Shorter treatment times

Brachytherapy

* Limitations
o Tumor must be accessible
o Well-demarcated
o Cannot be only modality for tumors with high risk of regional lymph node metastasis

Read more...

Challenges in Optimal Delivery of Radiation in Head and Neck Cancers



Challenges in Optimal Delivery of Radiation in Head and Neck Cancers
by
Dr. J P Agarwal, Associate Professor
Department of Radiation Oncology
Tata Memorial Hospital, India

Head and Neck Squamous Cell Carcinoma
General Management Guidelines for H & N Cancers
Head And Neck Radiotherapy
Optimal Dose Delivery With Minimum Acute And Long Term Toxicity
The changing paradigm Wide field radiation Conformal radiation
Head and Neck Immobilization devices
Verification Of Patient Positioning
Immobilization and Set Up Uncertainties
Guidelines For Target Volume Delineation
Heterogeneity In Target Volume Delineation
PET CT Fusion And Effect On PTV

and more topics are in this presentation.


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