All Content

Root cause analysis is a commonly used tool to identify systems-related factors that contributed to an adverse event. This study assessed a system-based approach, (i.e., collaborative case reviews (CCR) co-led by radiology and an institutional patient safety program) to identify contributing factors and explore the strength of recommended actions in the radiology department at a large academic medical center. Stronger action items, such as standardization of processes, were implemented in 41% of events, and radiology had higher completion rates than other hospital departments.

Incomplete or delayed referrals from primary care providers to specialty care can cause diagnostic delays and patient harm. A systems engineering analysis was conducted to identify vulnerabilities in the referral process and develop a framework to close the loop between primary and specialty care. Low reliability processes, such as workarounds, were identified and human factors approaches were recommended to improve successful referral rates.

Radiofrequency identification (RFID) technology has been most commonly used in perioperative settings to improve patient safety. This study explored whether RFID technology can improve process measures in laboratory settings, such as order tracking, specimen processing, and test result communication. Findings indicate that RFID-tracked orders were more likely to have completed testing process milestones and were completed more quickly.

Autopsies are an important tool for identifying diagnostic errors. This retrospective study of 821 pediatric cancer deaths found that 10% had a major diagnostic discrepancy between antemortem and postmortem diagnoses. These discrepancies primarily consisted of missed infections, missed cancer diagnoses, and organ complications.

Delayed diagnosis is a critical patient safety concern. This cohort study, consisting of 3,500 patients with tuberculosis (TB) over a 17-year period, found that more than three-quarters of patients experienced at least one missed opportunity for a diagnosis in the year before they were finally diagnosed with TB. The average duration of the diagnostic delay was nearly 32 days. Missed opportunities occurred most commonly in outpatient settings. A previous WebM&M commentary discusses patient harm resulting from a missed TB diagnosis.

Delays in diagnosis and treatment during after-hours care pose serious threats to patient safety. This case-control study compared missed acute coronary syndrome (ACS) cases to other cases with chest discomfort occurring during out-of-hours services in primary care. Predictors of missed ACS included the use of cardiovascular medication, non-retrosternal chest pain, and consultation of the supervising general practitioner.   

Patient safety in primary care is an emerging focus. This cross-sectional study across primary care clinics in England explored the main factors contributing to patient-reported harm experiences. Factors included incidents related to communication, care coordination, and incorrect or delayed; diagnosis and/or treatment.

This study surveyed 9,206 adults across the United States about their perceptions of medical errors occurring in ambulatory care settings. Thirty-six percent of respondents perceived that their doctor has ever made a mistake, provided an incorrect diagnosis, or given an incorrect (or delayed) treatment. According to these findings, patient-perceived medical errors and harms occurred most commonly in women and those in poor health with comorbid conditions.  

The COVID-19 pandemic has led to patients delaying or forgoing necessary health care.  Comparing the same 10-week period in 2018, 2019 and 2020, researchers used data from seven hospitals in northern-central Italy to assess the impact of COVID-19 on cancer diagnoses. Compared to prior years, cancer diagnoses overall fell by 45% in 2020. Researchers noted the largest decrease in cancer diagnoses among skin, colorectal, prostate, and bladder cancers.  

Diagnostic errors, including missed diagnoses of adolescent depression, elevated blood pressure, and delayed response to abnormal lab results, are common in pediatric primary care. Building upon previous work, this study used root cause analyses to identify the failure points and contributing factors to these errors. Omitted process steps included failure to screen for adolescent depression, failure to recognize and act on abnormal blood pressure values, and failure to notify families of abnormal lab results. Factors contributing most commonly to these errors were patient volume, inadequate staffing, clinic environment, electronic and written communication, and provider knowledge.

Radiological exams are often ordered but go unscheduled, which can delay diagnoses and lead to other medical errors. In this retrospective study at one academic institution, the clinical necessity of 700 unscheduled radiologic examination orders (100 from each of seven different radiographic modalities) was examined. Study results indicate that, except for CT, obstetric ultrasound and fluoroscopy radiologic tests, the majority of unscheduled orders are clinically necessary and that 7% of all radiologic examination orders remain unscheduled a month or more after the order was placed.

Clear communication between primary care physicians and the providers to whom they refer patients has important implications for achieving accurate diagnosis and appropriate treatment plans for patients. In this observational study, researchers included 6603 patients from 68 general medical practices in Ireland, randomly selecting 100 patients from each practice and excluding patients without complete records. They analyzed referral documentation and responses received from subspecialists as well as discharge summaries from hospitalizations over a 2-year period, compared with established national standards. Although 82% of referral letters included current medications, only 30% of response letters and discharge summaries contained medication changes and 33% had medication lists. The authors conclude that significant communication gaps exist between primary and secondary care and that further research is needed to understand how to address them. A past PSNet perspective discussed challenges associated with care transitions.

Outpatient safety is gaining recognition as a focus of research and improvement efforts. This project report describes an ambulatory safety program at an academic health system that targeted reporting, safety culture measurement, medication safety, and test result management. Repeated tracking over a 5-year period revealed that failure to request feedback played a role in the modest incident and concern reporting captured by the program. Decentralizing reporting response responsibilities throughout the system significantly increased feedback activity.

Point-of-care test results are often manually transcribed into the electronic health record, which introduces risks of manual transcription errors. The authors of this study took advantage of a redundant workflow in which point-of-care blood glucose results were uploaded and also manually entered by staff. They estimate that 5 in 1000 manually entered results contain clinically significant transcription errors and call for interfacing point-to-care instruments as a patient safety strategy.

This study examined ambulatory follow-up of test results by aggregating multiple types of data—national surveys on safety culture and patient satisfaction; patient complaints; safety reports; and electronic health record audits of provider response times. Researchers found an association between quicker response time for test results and higher patient satisfaction. They conclude that merging these disparate data sources can uncover new levers to improve patient safety.

Gaps in follow-up of abnormal test results are known to contribute to delays in diagnosis in primary care, yet primary care practices still lack standard processes to detect and manage abnormal test results. In this study, investigators identified specific abnormal test results requiring follow-up and tested an escalating strategy of communicating with primary care physicians about test results. The study team first sent a secure email with test results to providers, and if the appropriate diagnostic follow-up action did not occur within one week, they made up to three attempts to reach providers by telephone. Email spurred about 11% of providers to act, and more than two-thirds of providers followed up after receiving telephone calls. For the handful of providers who did not act in response to the email or telephone calls, investigators contacted clinic directors. However, even with this patient-specific communication intervention, follow-up of abnormal test results remained incomplete. These results demonstrate that communicating abnormal results to primary care providers is not sufficient to achieve optimal follow-up. As recommended in the Improving Diagnosis report, team-based results management or technological approaches may be needed to assist primary care providers in tracking and following up on outpatient results to promote timely and accurate diagnosis.

Failure to properly follow up on test results can result in missed or delayed diagnoses. This study from the Veterans Affairs (VA) system reveals the clinical impact of inadequate care processes for patients with urgent follow-up needs. By analyzing 111 root cause analyses of diagnostic error cases in the outpatient setting, the authors determined that poorly coordinated care—arising from a lack of systems to track patients needing urgent evaluation, insufficient follow-up of abnormal test results, and inadequate communication between clinicians—contributed to most of the missed or delayed diagnoses. Although electronic medical records (EMRs) should facilitate responding to abnormal test results, prior VA studies have shown that a small but clinically significant proportion of abnormal laboratory tests and radiology studies are not acted upon in a timely fashion (despite the VA having a fully integrated EMR for more than a decade). The authors advocate for refining EMR systems to better facilitate communication between clinicians and for emphasizing teamwork training in the outpatient setting.

In this study, primary care providers frequently relied on extraordinary actions to overcome system barriers in obtaining their patients' timely and safe cancer evaluations. This finding provides evidence that downstream measures, such as timeliness of diagnosis, may fail to detect major system problems.