Choosing Wisely and the climate crisis: a role for clinicians

Why We Should, and How We Can, Reduce the Climate Toxicity of Cancer Care

Climate change is like cancer, delayed action leads to more suffering for patients.

Urology on a changing planet: links between climate change and urological disease

Urological diseases and their varied forms of management warrant special attention in the setting of climate change. Regarding urological cancers, climate change will probably increase the incidence and severity of cancer diagnoses through exposures to certain environmental risk factors, while simultaneously disrupting cancer care delivery and downstream outcomes. Regarding benign urological diseases, a burgeoning body of work exists on climate-related heat waves, dehydration, urolithiasis, renal injury and infectious and vector-borne diseases. Adding to the potential effect on disease pathogenesis, many patients with urological diseases undergo high-tech, resource-intensive interventions, such as robotic surgery, and entail intensive longitudinal assessments over many years. These features incur a considerable carbon footprint, generate substantial waste, and can introduce vulnerabilities to climate-related weather events. Links exist between planetary health (the health of humans and the natural systems that support our health), climate change and urological disease and urological care providers face many challenges in the era of anthropogenic climate change. The next steps and priorities for research, management, and health care delivery include identification and prioritization of health care delivery strategies to minimize waste and carbon emissions, while supporting climate resilience. Examples include supporting telemedicine, limiting low-value care, and building resilience to minimize impacts of climate-related disasters to prepare for the challenges ahead.

Toward value-based care using cost mining: cost aggregation and visualization across the entire colorectal cancer patient pathway

BACKGROUND

The aim of this study is to develop a method we call "cost mining" to unravel cost variation and identify cost drivers by modelling integrated patient pathways from primary care to the palliative care setting. This approach fills an urgent need to quantify financial strains on healthcare systems, particularly for colorectal cancer, which is the most expensive cancer in Australia, and the second most expensive cancer globally.

METHODS

We developed and published a customized algorithm that dynamically estimates and visualizes the mean, minimum, and total costs of care at the patient level, by aggregating activity-based healthcare system costs (e.g. DRGs) across integrated pathways. This extends traditional process mining approaches by making the resulting process maps actionable and informative and by displaying cost estimates. We demonstrate the method by constructing a unique dataset of colorectal cancer pathways in Victoria, Australia, using records of primary care, diagnosis, hospital admission and chemotherapy, medication, health system costs, and life events to create integrated colorectal cancer patient pathways from 2012 to 2020.

RESULTS

Cost mining with the algorithm enabled exploration of costly integrated pathways, i.e. drilling down in high-cost pathways to discover cost drivers, for 4246 cases covering approx. 4 million care activities. Per-patient CRC pathway costs ranged from $10,379 AUD to $41,643 AUD, and varied significantly per cancer stage such that e.g. chemotherapy costs in one cancer stage are different to the same chemotherapy regimen in a different stage. Admitted episodes were most costly, representing 93.34% or $56.6 M AUD of the total healthcare system costs covered in the sample.

CONCLUSIONS

Cost mining can supplement other health economic methods by providing contextual, sequence and timing-related information depicting how patients flow through complex care pathways. This approach can also facilitate health economic studies informing decision-makers on where to target care improvement or to evaluate the consequences of new treatments or care delivery interventions. Through this study we provide an approach for hospitals and policymakers to leverage their health data infrastructure and to enable real time patient level cost mining.

Primary healthcare's carbon footprint and sustainable strategies to mitigate its contribution: a scoping review

BACKGROUND

The escalating climate crisis poses a significant threat to global public health. The healthcare sector, designed to protect human health is a major contributor to greenhouse gas emissions, and thus, a key driver of climate degradation. This paradox endangers both planetary and human health, making the decarbonization of healthcare, including primary care, critical. However, research on primary care's contribution to emissions and strategies for mitigation remains limited.

AIM

This scoping review aimed to map how primary care contributes to healthcare's environmental footprint and determine contributing factors. Additionally, it sought to identify existing and innovative strategies to reduce the carbon footprint of primary healthcare.

METHODS

A comprehensive strategy was developed to systematically search both published databases and grey literature. Key terms were identified and employed in the exploration of relevant databases and internet search engines.

RESULTS

An initial search yielded 246 published articles and 25 grey literature sources. 14 additional articles were included following forward and backward searching of prominent authors and key articles. After screening and full-text review, 39 articles and 12 reports/toolkits were included. The majority of sources were opinion pieces, with limited quantitative, observational, or qualitative studies. Primary care's carbon footprint can be classified into clinical and non-clinical sources, with significant impacts from pharmaceuticals and inhaler propellant gases. Contributing factors include limited knowledge of emission sources, lack of awareness of sustainable practices, low prioritization of sustainability, barriers including ethical concerns and over-medicalization. Identified strategies to reduce emissions include decarbonization of patient care, increasing education and awareness, implementing non-clinical decarbonization efforts, and conducting more research to support sustainable initiatives. Developing metrics to track progress and securing policy supports to improve adoption and implementation were also highlighted as critical.

CONCLUSION

The identification of sources of carbon hotspots in primary care is an essential precursor to enable the development of targeted decarbonization strategies. Decarbonizing primary care requires a multifaceted approach that addresses the underlying factors driving unsustainable practices. This would allow healthcare professionals to effectively balance the provision of high-quality patient care, while reducing their environmental impact, ultimately improving both human and planetary health.

Diagnostic Excellence in the Context of Climate Change: A Review

Climate change is leading to a rise in heat-related illnesses, vector-borne diseases, and numerous negative impacts on patients' physical and mental health outcomes. Concurrently, healthcare contributes about 4.6% of global greenhouse gas emissions. Low-value care, such as overtesting and overdiagnosis, contributes to unnecessary emissions. In this review, we describe diagnostic excellence in the context of climate change and focus on two topics. First, climate change is affecting health, leading to the emergence of certain diseases, some of which are new, while others are increasing in prevalence and/or becoming more widespread. These conditions will require timely and accurate diagnosis by clinicians who may not be used to diagnosing them. Second, diagnostic quality issues, such as overtesting and overdiagnosis, contribute to climate change through unnecessary emissions and waste and should be targeted for interventions. We also highlight implications for clinical practice, research, and policy. Our findings call for efforts to engage healthcare professionals and policymakers in understanding the urgent implications for diagnosis in the context of climate change and reducing global greenhouse gas emissions to enhance both patient and planetary outcomes.

Medical Practice and the Climate Crisis

This JAMA Insights discusses the significant role that health care plays in the climate crisis and provides strategies to assist clinicians with improving patient care while also protecting the environment.

Improving Access to Care, Patient Costs, and Environmental Impact Through a Community Outreach Lung Cancer Rapid Assessment Clinic

PURPOSE

In Southeastern Ontario, increased patient distance from the regional lung cancer diagnostic assessment program (LDAP) is associated with a lower likelihood of patient care via LDAP while receiving care via LDAP is associated with improved survival. We implemented an LDAP outreach clinic to provide specialist assessment for patients with suspected lung cancer at a regional community hospital and assessed the impact on timeliness and accessibility of care.

MATERIALS AND METHODS

The Kingston Health Sciences Centre LDAP team engaged with community hospital partners to develop and launch the LDAP outreach clinic. We performed a retrospective chart review of LDAP patients (N = 1,070) before (August-November 2021; n = 234) and after implementation of the outreach clinic (November 2021-October 2022; n = 836). Descriptive data are reported as No. (%). Unpaired t tests and statistical process control charts assess for significance. A cost analysis of out-of-pocket patient costs related to travel and parking is presented in 2022 Canadian dollars (CAD).

RESULTS

Compared with a 3-month matched time period before (August-October 2021) and after outreach clinic (August-October 2022), the mean time from referral to assessment and time from referral to diagnosis decreased from 20.3 to 14.4 days (P = .0019) and 40.0 to 28.9 days (P = .0007), respectively. Over 12 months, the total patient travel was reduced by 8,856 km, which combined with parking cost-savings, resulted in patient out-of-pocket savings of CAD $5,755.60 (CAD $47.60/patient). Accounting for physician travel, the total travel saved was 5,688 km, corresponding to reduced CO2 emissions by 1.9 tCO2.

CONCLUSION

Implementation of a lung cancer outreach clinic led to improved timeliness of care, patient cost-savings, and reduced carbon footprint while serving patients in their community.

Understanding medication recycling practices in Canadian hospitals

BACKGROUND

Medication recycling within hospitals has proven financial and possible environmental benefits according to local evaluations done in British Columbia. Despite this, the extent of medication recycling in Canadian hospitals remains unclear in the literature.

OBJECTIVE(S)

To determine if Canadian hospitals recycle medications, provide an estimate of how much medication is recycled by dosage form, and identify medication recycling barriers through the distribution of a cross-sectional survey.

METHODS

A nine-question survey was distributed to 171 hospital pharmacy departments across Canada that consented to complete the survey. The survey identified whether sites recycled unused medications, an estimate of how much is recycled based on dosage form, and barriers to recycling.

KEY FINDINGS

Of 62 respondents, the majority indicated they do have medication recycling procedures; however, the frequency of recycling is suboptimal (30-50% of medications are not recycled), and not all medication types are always recycled. Individually packaged oral tablets were most often recycled, and oral liquid medications were least often recycled. Many multi-dose medications were not tamper-proofed. Most respondents selected "sanitization/infection control" and "resource constraint" as reasons for not recycling all medications.

CONCLUSIONS

Among respondents, the proportion and type of unused medicines that are recycled varied. For sites that did not respond, this might suggest that medication recycling is not a priority. This could represent a missed opportunity to standardize practices and increase medication recycling in hospitals, both of which could represent a meaningful step towards responsible use of medications and reduction of negative impacts on human health and the environment.

Choosing Wisely Italy, and the role of doctors in containing the climate emergency

The philosopher of science, Telmo Pievani, in his beautiful and passionate presentation on 30 September 2023, at the conclusion of the 60th National Congress of the Italian Association of Hospital Dermatologists (ADOI) held in Vicenza, reminded us with simple words and concrete examples of the devastating impact of human behavior on the environment and biodiversity, highlighting the growing deterioration of the delicate natural balances that preserve terrestrial ecosystems and with them life on our planet [...]