When Heart Failure Hits Home: Partners Report Low Sexual Satisfaction, Study Finds

Heart failure is usually described as a disease of the heart muscle, but a new study from northern Iran suggests that its consequences ripple far beyond the patient’s chest. When clinicians measure the damage caused by a failing heart, they typically track ejection fractions, sodium levels, and exercise tolerance. What they rarely measure is what happens in the bedroom — and, crucially, what happens to the spouse. A cross-sectional study conducted at Fatemeh Zahra Hospital in Sari, Iran, and published in Discover Social Science and Health, has now put numbers on an aspect of cardiac care that is almost universally overlooked: the sexual satisfaction of the partners of people living with heart failure. The results are sobering. On a standardized questionnaire, partners scored an average of 74.58 out of a possible 100, with a standard deviation of 6.32 — a level the researchers classify as low sexual satisfaction.

The study, led by Safa Mousavi of Tabriz University of Medical Sciences together with colleagues at Mazandaran University of Medical Sciences, recruited 219 partners of patients with confirmed heart failure between February 2022 and January 2023. Participants were drawn from both inpatient wards and outpatient clinics using consecutive sampling, a technique in which every eligible person who presents during the recruitment window is invited to take part. To qualify, partners had to have been married to the patient for at least one year and be willing to participate. The researchers recorded the patient’s left ventricular ejection fraction — the percentage of blood the left ventricle pumps out with each contraction, and the single most important number in classifying heart failure severity — splitting cases into those with an ejection fraction of 30 percent or less and those above 30 percent.

Sexual satisfaction was measured with Larson’s Sexual Satisfaction Questionnaire, a validated instrument that asks respondents to rate multiple dimensions of their sexual relationship, including communication, affection, and the frequency and quality of sexual activity. The team then applied a battery of statistical tests: independent t-tests to compare group means, one-way analysis of variance to compare multiple groups, Pearson correlation to measure linear associations between continuous variables, and multiple linear regression to isolate which factors independently predicted satisfaction scores. A p-value of 0.05 or below was treated as statistically significant throughout. This layered approach matters, because simple correlations can be misleading — older couples tend to have been married longer, for instance, so teasing apart which variables carry independent weight requires regression modeling.

The correlational findings painted a consistent picture. Sexual satisfaction declined significantly as the partner’s age rose (a correlation coefficient of −0.196, with a p-value of 0.004), as the patient’s age rose (−0.197, p = 0.003), and as the duration of the marriage increased (−0.211, p = 0.002). These coefficients are modest in magnitude but statistically robust, and they align with a broader clinical literature showing that both aging and chronic illness erode sexual wellbeing. In heart failure, the physiological mechanisms are well documented: reduced cardiac output limits blood flow to the genital vasculature, medications such as beta-blockers and diuretics can dampen libido and arousal, and the fear of triggering dyspnea, arrhythmia, or chest pain during exertion casts a psychological shadow over intimacy for both members of the couple.

But the most striking results emerged from the multivariable regression, which controlled for the overlapping effects of age, marriage length, and illness severity. Three factors stood out as independent predictors of sexual satisfaction: whether the couple had children, the type of marriage, and the partner’s employment status. The presence of children was the dominant signal. Partners without children scored an average of 80.69 on the satisfaction scale, compared with 73.38 for those with children — a gap of more than seven points that was highly significant, with a p-value below 0.0001. The authors suggest that psychosocial and family-related burdens, including caregiving demands and the diversion of emotional and physical energy into parenting, may compound the strain that heart failure already places on a couple’s intimate life.

The other two independent predictors are equally revealing. Type of marriage — a variable with particular cultural salience in Iran, where arranged and self-chosen marriages coexist — reached significance at p = 0.012, indicating that the circumstances under which a couple formed their bond shape how well their sexual relationship weathers chronic illness. Employment status of the partner was also independently associated with satisfaction (p = 0.004), plausibly reflecting differences in stress, fatigue, financial pressure, and the time available for the relationship. Notably, the patient’s ejection fraction category did not emerge as an independent driver of partner satisfaction in the regression, a finding that challenges the intuitive assumption that a weaker heart automatically means a less satisfying intimate life. The subjective and relational context, the data suggest, may matter as much as the pump itself.

Why does this matter clinically? Sexual dysfunction is one of the most common yet least discussed consequences of cardiovascular disease. Surveys across cardiology settings consistently show that patients want to talk about sexual problems but rarely do, and clinicians rarely ask — a mutual silence that leaves a treatable aspect of quality of life unaddressed. This study extends that conversation to the partner, who is often the patient’s primary caregiver and whose own wellbeing is tightly coupled to the patient’s recovery and adherence to treatment. A partner experiencing low sexual satisfaction may also be experiencing depression, caregiver burnout, or relational distress, all of which can undermine the home-based support system on which heart failure management depends. Heart failure care is, in a real sense, delivered at home, and the home’s emotional climate is a clinical variable.

The study’s design carries caveats that readers should keep in mind. As a cross-sectional analysis, it captures a single moment in time and cannot establish causation: it cannot tell us whether low sexual satisfaction follows heart failure, precedes it, or arises from shared underlying factors such as aging or socioeconomic strain. The sample came from a single hospital in Sari, a city in Mazandaran province, and cultural norms in northern Iran may shape both how participants experience intimacy and how willing they are to report on it honestly, even on an anonymous questionnaire. Consecutive sampling from one center also limits how far the findings generalize to other regions and health systems. The self-reported nature of the satisfaction measure introduces the possibility of social desirability bias, particularly on a topic that remains sensitive in many communities.

Even with those limitations, the work fills a genuine gap. Most research on sexuality and heart disease focuses on the patient — typically on erectile dysfunction in men with coronary artery disease — while the partner’s experience is treated as an afterthought. By quantifying partner satisfaction and identifying modifiable correlates such as family structure, employment, and marital context, the Iranian team gives clinicians a concrete checklist for a conversation that almost never happens. The authors argue that their findings highlight the importance of addressing psychosocial and family-related factors in the care of heart failure patients and their partners, and the data back that argument: the strongest predictors of low satisfaction were not measures of cardiac function but measures of family life.

The practical implications are straightforward. Cardiac rehabilitation programs, which already monitor exercise capacity, diet, and mood, could incorporate brief sexual health screenings for both patients and partners, normalized as part of routine follow-up. Counseling that addresses fear of exertion during intimacy — much of which is based on outdated risk perceptions — has been shown in other cardiac populations to restore confidence and activity. And recognizing that couples with children and employed partners face distinct pressures could help tailor support services. The study received no external funding, was approved by the ethics committee of Mazandaran University of Medical Sciences, and was conducted in accordance with the Declaration of Helsinki, with informed consent from all participants. Its message, however, costs nothing to act on: the heart fails in one body, but the consequences are shared by two people, and good cardiac care should count both of them.

Subject of Research: Sexual satisfaction among partners of patients with heart failure

Article Title: Sexual satisfaction among partners of patients with heart failure: a cross-sectional study in Sari, Iran

Article References: Mousavi, S., Valipourkoleti, A., Malekrah, A., & Nouri, B. (2026). Sexual satisfaction among partners of patients with heart failure: a cross-sectional study in Sari, Iran. Discover Social Science and Health. https://doi.org/10.1007/s44155-026-00485-5

Image Credits: AI Generated

DOI: 10.1007/s44155-026-00485-5

Keywords: heart failure, sexual satisfaction, partners, cross-sectional study, Iran, sexual dysfunction, cardiology, psychosocial factors, Larson questionnaire, caregivers, quality of life, marital relationship