Are there sex-related differences in specialized, multidisciplinary congestive heart failure clinics?

Gender differences in characteristics and outcomes in heart failure patients referred for end-stage treatment

Aims

Despite signals from clinical trials and mechanistic studies implying different resilience to heart failure (HF) depending on gender, the impact of gender on presentation and outcomes in patients with HF remains unclear. This study assessed the impact of gender on clinical presentation and outcomes in patients with HF referred to a specialised tertiary HF service.

Methods and results

Consecutive patients with HF referred to a specialised tertiary HF service offering advanced therapy options including left ventricular assist devices (LVAD) and heart transplantation were prospectively enrolled from August 2015 until March 2018. We assessed clinical characteristics at baseline and performed survival analyses and age‐adjusted Cox regression analyses in men vs. women for all‐cause death and a combined disease‐related endpoint comprising death, heart transplantation, and LVAD implantation. Analyses were performed for the overall study population and for patients with HF with reduced ejection fraction (HFrEF). Of 356 patients included, 283 (79.5%) were male. The median age was 58 years (interquartile range 50–67). Two hundred and fifty‐one (74.5%) patients had HFrEF. HF aetiology, ejection fraction, functional status measures, and most of the cardiac and non‐cardiac comorbidities did not differ between men and women. In a median follow‐up of 3.2 years, 50 patients died (45 men, 5 women), 15 patients underwent LVAD implantation, and 8 patients heart transplantation. While all‐cause death was not significantly different between both genders in the overall population [16.9 vs. 6.0%, P = 0.065, hazard ratio (HR) 2.29 (95% confidence interval 0.91–5.78), P = 0.078], in the HFrEF subgroup, a significant difference between men and women was observed [20.7% vs. 3.9%, P = 0.017, HR 3.67 (95% confidence interval 1.13–11.91), P = 0.031]. The combined endpoint was more often reached in men than in women in both the overall population [21.6% vs. 9.0%, P = 0.053, HR 2.51 (1.08–5.82), P = 0.032] and the HFrEF subgroup [27.1% vs. 7.7%, P = 0.015, HR 3.58 (1.29–9.94), P = 0.014].

Conclusions

Patients referred to a specialised tertiary HF service showed a similar clinical profile without relevant gender differences. In the mid‐term follow‐up, more male than female patients died or underwent heart transplantation and LVAD implantation. These findings call for independent validation and for further research into gender‐specific drivers of HF progression.

Referral and access to heart function clinics: A realist review

RATIONALE, AIM, AND OBJECTIVES

Heart failure (HF) clinics are highly effective, yet not optimally utilized. A realist review was performed to identify contexts (eg, health system characteristics, clinic capacity, and siting) and underlying mechanisms (eg, referring provider knowledge of clinics and referral criteria, barriers in disadvantaged patients) that influence utilization (provider referral [ie, of all appropriate and no inappropriate patients] and access [ie, patient attends ≥1 visit]) of HF clinics.

METHODS

Following an initial scoping search and field observation in a HF clinic, we developed an initial program theory in conjunction with our expert panel, which included patient partners. Then, a literature search of seven databases was searched from inception to December 2019, including Medline; Grey literature was also searched. Studies of any design or editorials were included; studies regarding access to cardiac rehabilitation, or a single specialist for example, were excluded. Two independent reviewers screened the abstracts, and then full-texts. Relevant data from included articles were used to refine the program theory.

RESULTS

A total of 29 papers from five countries (three regions) were included. There was limited information to support or refute many elements of our initial program theory (eg, referring provider knowledge/beliefs, clinic inclusion/exclusion criteria), but refinements were made (eg, specialized care provided in each clinic, lack of patient encouragement). Lack of capacity, geography, and funding arrangements were identified as contextual factors, explaining a range of mechanistic processes, including patient clinical characteristics and social determinants of health as well as clinic characteristics that help to explain inappropriate and low use of HF clinics (outcome).

CONCLUSION

Given the burden of HF and benefit of HF clinics, more research is needed to understand, and hence overcome sub-optimal use of HF clinics. In particular, an understanding from the perspective of referring providers is needed.

Gender Differences in Utilization of Specialized Heart Failure Clinics

BACKGROUND

Although heart failure (HF) prevalence is equally high among men and women, observed differences in the provision of care are still not fully understood. We sought to evaluate gender differences in patient profiles, diagnostic testing, medication prescription, and referrals in specialized multidisciplinary ambulatory HF clinics in Ontario.

MATERIALS AND METHODS

Medical chart abstraction was conducted first by randomly selecting 9 (out of 34) HF clinics in Ontario, and then by randomly selecting 100 patient records in each clinic. Data on patient demographics, comorbidities, diagnostic tests, medication use, and referrals were abstracted, covering a period from the first clinic visit up to 1 year. Descriptive statistics and regression analysis were used to assess gender differences.

RESULTS

Of the 884 patients, only 314 were women (35.5%). At the first clinic visit, women were older, had better systolic function but worse functional status, and had a lower prevalence of hyperlipidemia, diabetes, and smoking than men. There were more women with non-ischemic HF etiology than men (63.9% vs. 43.3%, p < 0.001). Adjusted analysis did not reveal gender differences in the average number of echocardiographic assessments and in the prescription rates of evidence-based medications. Men were twice more likely to be referred to electrophysiology studies than women (18.6% vs. 7.8%, p < 0.001). The rates of dietary counseling and cardiac rehabilitation referrals were similarly low in both groups.

CONCLUSIONS

More men than women are treated in specialized ambulatory HF clinics. Although women differ from men in selected clinical characteristics, no major differences were observed in patient management. The reasons for low enrollment rates of women into the HF ambulatory clinics need further investigation.

Pneumoconiosis increases the risk of congestive heart failure: A nationwide population-based cohort study

The purpose of the study was to determine the relationship between pneumoconiosis and congestive heart failure (CHF).We collected data from the National Health Insurance Research Database in Taiwan. The study sample comprised 8923 patients with pneumoconiosis and 35,692 nonpneumoconiosis controls enrolled from 2000 to 2011. Patients were followed up until the end of 2011 to evaluate the incidence of CHF. The risk of CHF was analyzed using Cox proportional hazard regression models, and the analysis accounted for factors such as sex, age, comorbidities, and air pollutants (μg/m).The overall incidence of CHF was higher in the pneumoconiosis cohort (15.7 per 1000 person-y) than in the nonpneumoconiosis cohort (11.2 per 1000 person-y), with a crude hazard ratio (HR) of 1.40 (P < 0.001). The HR for CHF was 1.38-fold greater in the pneumoconiosis cohort than in the nonpneumoconiosis cohort (P < 0.001) after the model was adjusted for age, sex, various comorbidities, and air pollutants (μg/m). The relative risk for CHF in the sex-specific pneumoconiosis cohort compared with the nonpneumoconiosis cohort was significant for men (adjusted HR = 1.40, 95% confidence interval = 1.21-1.62, P < 0.001). The incidence density rates of CHF increased with age; pneumoconiosis patients had a higher relative risk of CHF for all age group.Patients with pneumoconiosis were at higher risk for developing CHF than patients in the nonpneumoconiosis cohort, particularly in cases with coexisting coronary artery disease, hypertension, and chronic obstructive pulmonary disease.

Access to heart failure care post emergency department visit: do we meet established benchmarks and does it matter?

BACKGROUND

The Canadian Cardiology Society recommends that patients should be seen within 2 weeks after an emergency department (ED) visit for heart failure (HF). We sought to investigate whether patients who had an ED visit for HF subsequently consult a physician within the current established benchmark, to explore factors related to physician consultation, and to examine whether delay in consultation is associated with adverse events (AEs) (death, hospitalization, or repeat ED visit).

METHODS

Patients were recruited by nurses at 8 hospital EDs in Québec, Canada, and interviewed by telephone within 6 weeks of discharge and subsequently at 3 and 6 months. Clinical variables were extracted from medical charts by nurses. We used Cox regression in the analysis.

RESULTS

We enrolled 410 patients (mean age 74.9 ± 11.1 years, 53% males) with a confirmed primary diagnosis of HF. Only 30% consulted with a physician within 2 weeks post-ED visit. By 4 weeks, 51% consulted a physician. Over the 6-month follow-up, 26% returned to the ED, 25% were hospitalized, and 9% died. Patients who were followed up within 4 weeks were more likely to be older and have higher education and a worse quality of life. Patients who consulted a physician within 4 weeks of ED discharge had a lower risk of AEs (hazard ratio 0.59, 95% CI 0.35-0.99).

CONCLUSION

Prompt follow-up post-ED visit for HF is associated with lower risk for major AEs. Therefore, adherence to current HF guideline benchmarks for timely follow-up post-ED visit is crucial.

Referral and use of heart failure clinics: what factors are related to use?

BACKGROUND

Heart failure (HF) clinics have been shown to reduce hospital readmissions and generally have favourable effects on quality of life, survival, and care costs. This study investigated the rates of referral and use of HF clinics and examined factors related to program use.

METHODS

This study represents a secondary analysis of a larger prospective cohort study conducted in Ontario. In hospital, 474 HF inpatients from 11 hospitals across Ontario completed a survey that examined predisposing, enabling, and need factors affecting HF clinic use. Then 1 year later, 271 HF patients completed a mailed survey that assessed referral to and use of HF clinics.

RESULTS

Forty-one patients (15.2%) self-reported referral, and 35 (13%) self-reported attending an HF clinic. Generalized estimating equations showed that factors related to greater program use were having an HF clinic at the site of hospital recruitment (odds ratio [OR] = 8.40; P = 0.04), referral to other disease management programs (OR = 4.87; P = 0.04), higher education (OR = 4.61; P = 0.02), lower stress (OR = 0.93; P = 0.03), and lower functional status (OR = 0.97; P = 0.03).

CONCLUSION

Similar to previous research, only one-seventh of HF patients were referred to and used an HF clinic. Both patient-level and health-system factors were related to HF clinic use. Given the benefits of HF clinics, more research examining how equitable access can be increased is needed. Also, the appropriateness and cost repercussions of use of multiple disease management programs should be investigated.

Severity at entry to specialized heart failure clinics: discrepancies between health-related quality of life and function in men and women

BACKGROUND

We compared severity of heart failure (HF) between men and women at entry to the multidisciplinary HF clinic based on 3 measures: New York Heart Association functional class, norm-referenced 6-minute walk distance, and health-related quality of life.

METHODS

Newly admitted patients to 1 of 6 HF clinics were enrolled. Data were collected from a clinical database, questionnaires were administered to patients, and tests were administered by clinic nurses. We compared men and women with respect to the 3 severity indicators at entry to the clinic.

RESULTS

In adjusted analyses, women had a lower health-related quality of life (P = 0.04) but did not have lower norm-referenced 6-minute walk distance or lower New York Heart Association functional class on entry to the clinic. Having more comorbid conditions, being on medication, and having visited the emergency department or been admitted to hospital in the past 6 months were associated with higher severity at entry according to all 3 indicators.

CONCLUSIONS

Women report a lower health-related quality of life at entry to the clinic, although functional capacity does not seem to differ between women and men. Reasons for these discrepancies will need to be elucidated to better address women's health needs.

The 2010 Canadian Cardiovascular Society guidelines for the diagnosis and management of heart failure update: Heart failure in ethnic minority populations, heart failure and pregnancy, disease management, and quality improvement/assurance programs

Since 2006, the Canadian Cardiovascular Society heart failure (HF) guidelines have published annual focused updates for cardiovascular care providers. The 2010 Canadian Cardiovascular Society HF guidelines update focuses on an increasing issue in the western world - HF in ethnic minorities - and in an uncommon but important setting - the pregnant patient. Additionally, due to increasing attention recently given to the assessment of how care is delivered and measured, two critically important topics - disease management programs in HF and quality assurance - have been included. Both of these topics were written from a clinical perspective. It is hoped that the present update will become a useful tool for health care providers and planners in the ongoing evolution of care for HF patients in Canada.

Consultation with cardiologists for persons with new-onset chronic heart failure: a population-based study

BACKGROUND

It is recommended that persons recently diagnosed with heart failure consult with a specialist in heart failure.

OBJECTIVES

To determine whether patients who were diagnosed with new-onset chronic heart failure (CHF) by a noncardiologist consulted with a cardiologist, and identify the factors associated with delayed consultation.

METHODS

Physician reimbursement administrative data were obtained for all adults with suspected new-onset CHF in the year 2000 in Quebec, defined operationally as a physician visit for CHF (based on the International Classification of Diseases, 9th Revision diagnostic codes), with no previous physician visit code for CHF in the preceding three years. Among those first diagnosed by a noncardiologist, Cox regression modelling was used to identify patient and physician characteristics associated with time to cardiology consultation.

RESULTS

Of the 13,523 persons coded as having incident CHF, 54.9% consulted a cardiologist within the next 2.5 to 3.5 years, and 67.4% were seen by an internist or cardiologist. Older patients, women, and those with lower comorbidity and socioeconomic status had significantly longer times to cardiology consultation.

CONCLUSION

The data suggest that many patients with suspected new-onset CHF do not receive prompt cardiology care, as stipulated by current recommendations. Equity of access for women and those with lower socioeconomic status appears to be problematic.

Factors related to time to admission to specialized multidisciplinary clinics in patients with congestive heart failure

BACKGROUND

Congestive heart failure (CHF) is a common cause of hospitalization and has a poor prognosis. Specialized multidisciplinary clinics are effective in the management of CHF.

OBJECTIVES

To measure time of admission to the specialized clinics and explore factors related to the time of admission to these clinics.

METHODS

Patients who were newly admitted to one of six CHF multidisciplinary clinics in the province of Quebec were enrolled in the study. Data were collected from the common clinical database used at these clinics as well as from questionnaires administered to the patients.

RESULTS

A total of 531 patients with a mean age of 65.9 years were enrolled. Only 26% were women. The median duration of disease before admission to the CHF clinic was 1.2 years. The majority of patients (62%) were referred by a cardiologist or an internist, while 24% were referred by other specialists, and 14% by general practitioners. One-fifth of patients did not have regular follow-up for their CHF before being admitted to the clinic. Factors associated with shorter disease duration at admission to the clinic were referral by a specialist, not having regular medical follow-up for CHF, having a higher income and having visited the emergency room for CHF.

CONCLUSION

There may be a need to improve dissemination of information regarding availability and benefits of CHF clinics and criteria for referral.

Delay to orthopedic consultation for isolated limb injury: cross-sectional survey in a level 1 trauma centre

OBJECTIVE

To describe referral mechanisms for referral to orthopedic surgery for isolated limb injuries in a public health care system and to identify factors affecting access.

DESIGN

Cross-sectional survey.

SETTING

Orthopedic surgery service in a level 1 trauma centre in Montreal, Que.

PARTICIPANTS

We conducted a prospective study of 166 consecutive adults (mean age 48 years) referred to orthopedic surgery for isolated limb injuries during a 4-month period.

MAIN OUTCOME MEASURES

Self-reported data on the nature of the trauma, the elapsed time between injury and orthopedic consultation, the number and type of previous primary care consultations, sociodemographic characteristics, and the level of satisfaction with care.

RESULTS

Average time between the injury and orthopedic consultation was 89 hours (range 3 to 642), with an average of 68 hours (range 0 to 642) for delay between primary care consultation and orthopedic consultation. A total of 36% of patients with time-sensitive diagnoses had unacceptable delays to orthopedic consultation according to the Quebec Orthopaedic Association guidelines. Lower limb injury, consulting first at another hospital, living far from the trauma centre, patient perception of low severity, and having a soft tissue injury were associated with longer delays.

CONCLUSION

Identifying gaps and risk factors for slower access might help improve referral mechanisms for orthopedic consultation.