Helena Dreher

Helena Dreher

*This is an algorithmically generated author record based on publicly available information.

Current Organizations / Institutes

The organizations/institutes from the scholar's latest article


Helena Dreher has a total of 45 co-authors. Here are the top co-authors by number of shared publications:

  • Ann-Sophie Kaemmerer-Suleiman

    Department of Cardiac Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany

    2 shared publications
  • Anna Engel

    Department of Cardiology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany

    2 shared publications
  • Annika Freiberger

    International Center for Adults with Congenital Heart Disease, Department of Congenital Heart Disease and Paediatric Cardiology, TUM University Hospital, German Heart Center Munich, 80636 Munich, Germany

    2 shared publications
  • Christian Meierhofer

    Congenital Heart Disease and Pediatric Cardiology, German Heart Center Munich, Technical University of Munich, 80636 Munich, Germany

    2 shared publications
  • Christopher Hohmann

    University of Cologne, Faculty of Medicine and University Hospital of Cologne, Department III of Internal Medicine, Heart Center, Kerpener Straße 62, D-50931, Cologne, Germany

    2 shared publications
  • Fabian von Scheidt

    Internationales Zentrum für Erwachsene mit angeborenen Herzfehlern, Klinik für Angeborene Herzfehler und Kinderkardiologie, Deutsches Herzzentrum München, TUM Universitätsklinikum, München, Deutschland

    2 shared publications

Latest Publications

  • Open Access

    Genetic Syndromes and Multimorbidity in Adults with Congenital Heart Disease and Heart Failure: Insights from the PATHFINDER-CHD Registry

    by Ann-Sophie Kaemmerer-Suleiman, Fritz Mellert, Stephan Achenbach, Pinar Bambul-Heck, Robert Cesnjevar, Oliver Dewald, Helena Dreher, Andreas Eicken, Anna Engel, Peter Ewert, et al.

    Background/Objectives: Progress in diagnostic and therapeutic strategies has resulted in an increasing prevalence of adults with congenital heart disease (ACHD), including those involving genetically determined syndromes. This study aimed to characterize prevalence, congenital phenotypes, heart failure (HF) stages, comorbidity burden, and current medical management of ACHD and concomitant genetically determined syndromes enrolled in a prospective HF-focused registry. Methods: The PATHFINDER-CHD Registry is a German-based (est. 2022) multicenter observational registry. This web-based platform consecutively tracks ACHD patients across the heart failure spectrum, including those with current or prior HF, as well as those at high structural or functional risk. HF stage was classified using a modified ACC/AHA scheme adapted for CHD; functional capacity was graded according to the Perloff classification. Baseline demographics, CHD anatomy, prior surgical/interventional treatment, cardiac and extracardiac comorbidities, and medication were collected from medical records. Results: Among 1987 enrolled ACHD, 107 (5.4%) had a genetic syndrome (n = 65, 60.7% women; mean age 33.5 ± 9.4 years; range 18–68). Most common syndromes were trisomy 21 (n = 49; 45.8%) and 22q11.2 deletion (n = 27; 25.2%); 31 patients (30.0) had rarer syndromes. Predominant CHD diagnoses were atrioventricular septal defect (n = 42, 39.3%), tetralogy of Fallot (n = 19, 17.8%), and pulmonary atresia with ventricular septal defect (n = 7, 6.5%). A systemic left ventricle was present in 102 (95.3%); 40 (37.4%) had primarily cyanotic CHD, and 7 (6.5%) an Eisenmenger physiology. Most patients (n = 71; 66.4%) had undergone definite surgical repair; 25 patients (23.3%) had at least one catheter intervention, including transcatheter valve implantation in 17 cases (15.9%). HF stage was mainly B (n = 30, 28.0%) or C (n = 75, 70.1%). Perloff functional class I/II was present in 97 (90.7%). Leading cardiac comorbidities included intrinsic aortopathy (n = 49, 45.8%), pulmonary arterial hypertension (n = 12, 11.2%), and arrhythmias (n = 10, 9.3%). Frequent extracardiac comorbidities were thyroid dysfunction (n = 34, 31.8%), kidney disease (n = 16, 15.0%), hyperuricemia (n = 13, 12.1%), and depression (n = 15, 14.0%). Pharmacotherapy was used in 66 patients (61.7%). Beta-blockers (n = 25, 23.4%) were common, while ACEi/ARB (n = 9, 8.4%), diuretics (n = 10, 9.3%), MRAs (n = 8, 7.5%), and SGLT2 inhibitors (n = 3; 2.8%) were infrequently prescribed; no patient received ARNI or digitalis. For targeted treatment of pulmonary arterial hypertension, phosphodiesterase-5 inhibitors (n = 7, 6.5%), endothelin receptor antagonists (n = 6, 5.6%), or prostacyclin analogues (n = 1, 0.9%) were used. As oral anticoagulants, vitamin K antagonists or direct oral anticoagulants (DOACs) were prescribed in 17 cases (15.9%). Forty-one patients (38.3%) received thyroid hormone replacement. Conclusions: Syndromic ACHD constitute a small but clinically high-risk subgroup within an HF-oriented registry, marked by complex CHD, substantial cardio–extracardiac multimorbidity (notably aortopathy, PAH, thyroid disease, renal dysfunction, depression), and low utilization of contemporary HF therapies. These data support specialized, interdisciplinary, longitudinal care pathways and prospective studies addressing outcomes and evidence-based HF management in syndromic ACHD.

  • Open Access

    Dual Disease Burden: Growing Older with Congenital Heart Disease and Hereditary Metabolic and Connective Tissue Disorders—Data from the PATHFINDER-CHD Registry on Heart Failure

    by Ann-Sophie Kaemmerer-Suleiman, Frank Harig, Annika Freiberger, Oliver Dewald, Stephan Achenbach, Aysenur Akyol, Helena Dreher, Anna Engel, Peter Ewert, Sebastian Freilinger, et al.

    Background: Advances in diagnosis and treatment have led to a growing population of adults with congenital heart disease (ACHD). Despite increasing life expectancy, their clinical needs—especially in older age—remain poorly defined. Cardiac and non-cardiac comorbidities are prevalent, and emerging evidence suggests accelerated biological aging compared to the general population. However, data on older patients and geriatric patients with CHD are limited. Objectives: This study aimed to characterize patients with CHD aged ≥50 years, focusing on functional status, comorbidities, sex-specific differences, and therapeutic patterns. Methods: The PATHFINDER-CHD Registry is a prospective, observational, multicenter registry enrolling patients with CHD with manifest heart failure (HF), HF history, or high HF risk. Data include anatomy, prior treatments, comorbidities, and medication use. Results: Among 1935 patients, 297 were ≥50 years old. Most had acyanotic CHD (62%); Tetralogy of Fallot (21%) was the most frequent diagnosis. A morphologic right systemic ventricle was present in 12%, and 5% had univentricular hearts. HF was manifest in 21%; 44% were classified as ACC/AHA stage B, 51% as stage C, yet 77% were in Perloff class I/II. Common cardiovascular comorbidities included aortopathy (55%), hypertension (37%), and arrhythmia (33%). Non-cardiac comorbidities included thyroid dysfunction (25%), renal impairment (18%), and neurological disease (13%). Sex-specific differences were observed. Despite HF burden, SGLT2 inhibitors and ARNIs were used in only 17% and 8.4%, respectively. Conclusions: Older patients with CHD represent a clinically complex cohort with high comorbidity burden. The findings support the concept of accelerated aging and emphasize the need for tailored interdisciplinary care strategies.


  • Open Access

    Symptoms of post-traumatic distress and quality of life in adults with aortopathy and congenital heart defects or hereditary connective tissue diseases

    by Helena Dreher, Oliver Dewald, Annika Freiberger, Sebastian Freilinger, Frank Harig, Nicole Nagdyman, Nina Theresa Strueven, Mathieu Suleiman, Fritz Mellert, Niko Kohls, et al.

    Background: Aortopathies do not only occur in acquired heart disease but are often associated with congenital heart defects (CHD) or hereditary connective tissue disease (HCTD). Individuals diagnosed with these conditions have an increased risk of life-threatening events, such as aortic dissection or rupture. The diagnosis of an aortopathy or the occurrence of complications are life-changing and psychologically stressful events, possibly inducing post-traumatic stress symptoms (PTSS) and a reduced quality of life (QoL). This study aimed to estimate the prevalence of PTSS and QoL related to cardiological parameters in adults with aortopathies and CHD or HCTD. Methods: This retrospective epidemiological cross-sectional study enrolled 137 adults with aortopathies and CHD or HCTD between May 2024 and October 2024. PTSS and QoL were assessed using the Posttraumatic Diagnostic Scale, the Impact of Event Scale-Revised, the Short Form-36, and the Minnesota Living with Heart Failure Questionnaire (MLHFQ). The reasons for PTSS were explored using free-text responses. Descriptive analyses were performed to assess measures of central tendency and distribution. To examine differences and associations, non-parametric tests and Spearman’s rank correlation were applied, and logistic regression models were used to further investigate medical and psychological associations. Results: Overall, 5.8% (n=8) to 7.3% (n=10) of the enrolled patients [mean age: 41.1±10.8 (18 to 63) years; 54% women] showed elevated PTSS indicative of clinical concern related to their aortopathy. Between pre-existing psychological disorders and PTSS, a significant association could be observed (odds ratio: 9.71, P=0.007). Cardiac parameters were not significantly associated with developing PTSS. Free-text responses showed a wide range of distressing events, ranging from anxiety, pain or shock to physical limitations. Overall QoL was good, although patients with PTSS showed a lower QoL (MLHFQ: 12.30 vs. 21.90, P=0.004). Conclusions: Despite the low prevalence of PTSS and generally good QoL, our findings underscore the importance of incorporating psychological screening into standard care for patients with CHD or HCTD with aortopathies. A holistic approach that goes beyond the medical management of aortopathies and includes comprehensive psychological support is essential in optimizing patient outcomes.