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Turning the tide in heart failure: A case report of one-year improvement in a CRT-P super-responder with HFrEF and LBBB

Heart Science Journal · Vol. 7 No. 4 (2026) · hlm. 90–94

DOI
10.21776/ub.hsj.2026.007.04.16
ISSN
2721-9984, 2721-9976
Terbit
2026-10-13
Penerbit
Universitas Brawijaya
Bahasa
en
Lisensi
creativecommons.org/licenses/by/4.0

Abstrak

Background: Cardiac resynchronization therapy (CRT) is an established treatment for heart failure with reduced ejection fraction (HFrEF) and electrical dyssynchrony, especially in patients with left bundle branch block (LBBB). In symptomatic patients with LVEF ≤35%, sinus rhythm and LBBB with a QRS duration ≥130 ms despite optimal treatment, CRT is suggested according to the 2021 ESC Guidelines to enhance symptoms, quality of life, and survival. In older patients who are not candidates for a defibrillator, cardiac resynchronization therapy pacemaker (CRT-P) is generally used. Response rates are generally 55% to 70% in large trials, with optimal outcomes in patients with LBBB and QRS duration ≥150 ms. Case Presentations: A 76-year-old woman physician with hypertension and dyslipidaemia, despite optimal treatment, presented with NYHA class III. ECG revealed complete LBBB in sinus rhythm. Echocardiography demonstrated an LVEF of 28%, left ventricular dilation, and significant functional mitral regurgitation. Coronary angiography was negative for obstructive coronary artery disease. CRT-P was implanted. At 6 months, the patient was still a non-responder with persistent systolic dysfunction, adverse remodelling, diastolic dysfunction and residual regurgitation. Echocardiography-guided device optimization adjusting AV delay by transmitral Doppler to preserve atrial contribution, VV delay by LVOT VTI and strain analysis to improve synchronization and reduce regurgitation. At One-year follow-up, the patient showed significant improvement in NYHA class I–II and improved exercise tolerance. Echocardiography showed significant reverse remodelling, and LVEF was improved to 67%. Device interrogation revealed ongoing thresholds and >99% biventricular pacing. Conclusions: This case illustrates a CRT-P super-responder outcome, the role of guideline-directed selection, close follow-up, and tailored optimization to maximize both clinical and structural benefits.

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Rekan penulisOrganisasiArtikel bersama
Mohammad Saifur RohmanUniversity of Brawijaya21
Anna Fuji RahimahUniversity of Brawijaya18
Indra PrasetyaUniversity of Brawijaya13
Sasmojo WiditoUniversity of Brawijaya10
Novi KurnianingsihUniversity of Brawijaya10
Setyasih AnjarwaniUniversity of Brawijaya10
Heny MartiniUniversity of Brawijaya9
Cholid Tri TjahjonoUniversity of Brawijaya6
Valerinna YogibuanaAfiliasi tidak diketahui6
Djanggan SargowoUniversity of Brawijaya5
Adhika Prastya WikanandaUniversity of Brawijaya4
Yoga WaranugrahaUniversity of Brawijaya4
N KaputrinUniversity of Brawijaya4
Budi SatrijoUniversity of Brawijaya3
Icmi Dian RochmawatiUniversity of Brawijaya3
Valerinna Yogibuana Swastika PutriUniversity of Brawijaya3
Nikhen NoverikeUniversity of Brawijaya3
Gebryel Dennis SaerangUniversity of Brawijaya3
Vemmy Lian SaputriUniversity of Brawijaya3
Puspa LestariUniversity of Brawijaya2
Olivia HandayaniUniversity of Brawijaya2
Fahmy RusnantaUniversity of Brawijaya2
Anita Surya SantosoAfiliasi tidak diketahui2
Fitranti Suciati LaitupaUniversity of Brawijaya2
Muhammad Saifur RohmanAfiliasi tidak diketahui2
Tri AstiawatiUniversity of Brawijaya2
Cik KahadiUniversity of Brawijaya2
Putri Annisa KamilaUniversity of Brawijaya1
Djanggan SargowoAfiliasi tidak diketahui1
Jonny Karunia FajarUniversity of Brawijaya1
Aditha Satria MaulanaUniversity of Brawijaya1
Aris Munandar Zulkifli IsmailUniversity of Brawijaya1
Anna Fuji RahimahAfiliasi tidak diketahui1
Aris Munandar ZIAfiliasi tidak diketahui1
Tonny AdriyantoUniversity of Brawijaya1
Seprian WidasmaraUniversity of Brawijaya1
Faris Wahyu NugrohoUniversity of Brawijaya1

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Sumber metadata: OAI-PMH (metadata jurnal) https://heartscience.ub.ac.id/index.php/heartscience/oai, pertama di-harvest 8 Nov 2026, terakhir terlihat 8 Nov 2026.
Metadata asli (oai_dc)
<oai_dc:dc xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/  http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
	<dc:title xml:lang="en">Turning the tide in heart failure: A case report of one-year improvement in a CRT-P super-responder with HFrEF and LBBB</dc:title>
	<dc:creator xml:lang="en">Ramadhan, Fitri Febrianti</dc:creator>
	<dc:creator xml:lang="en">Rizal, Ardian</dc:creator>
	<dc:creator xml:lang="en">Karolina, Wella</dc:creator>
	<dc:subject xml:lang="en">Cardiac Resynchronization Therapy</dc:subject>
	<dc:subject xml:lang="en">Cardiac Pacing</dc:subject>
	<dc:subject xml:lang="en">Heart Failure</dc:subject>
	<dc:subject xml:lang="en">Left Bundle Branch Block</dc:subject>
	<dc:description xml:lang="en">Background: Cardiac resynchronization therapy (CRT) is an established treatment for heart failure with reduced ejection fraction (HFrEF) and electrical dyssynchrony, especially in patients with left bundle branch block (LBBB). In symptomatic patients with LVEF ≤35%, sinus rhythm and LBBB with a QRS duration ≥130 ms despite optimal treatment, CRT is suggested according to the 2021 ESC Guidelines to enhance symptoms, quality of life, and survival. In older patients who are not candidates for a defibrillator, cardiac resynchronization therapy pacemaker (CRT-P) is generally used. Response rates are generally 55% to 70% in large trials, with optimal outcomes in patients with LBBB and QRS duration ≥150 ms. Case Presentations: A 76-year-old woman physician with hypertension and dyslipidaemia, despite optimal treatment, presented with NYHA class III. ECG revealed complete LBBB in sinus rhythm. Echocardiography demonstrated an LVEF of 28%, left ventricular dilation, and significant functional mitral regurgitation. Coronary angiography was negative for obstructive coronary artery disease. CRT-P was implanted. At 6 months, the patient was still a non-responder with persistent systolic dysfunction, adverse remodelling, diastolic dysfunction and residual regurgitation. Echocardiography-guided device optimization adjusting AV delay by transmitral Doppler to preserve atrial contribution, VV delay by LVOT VTI and strain analysis to improve synchronization and reduce regurgitation. At One-year follow-up, the patient showed significant improvement in NYHA class I–II and improved exercise tolerance. Echocardiography showed significant reverse remodelling, and LVEF was improved to 67%. Device interrogation revealed ongoing thresholds and &amp;gt;99% biventricular pacing. Conclusions: This case illustrates a CRT-P super-responder outcome, the role of guideline-directed selection, close follow-up, and tailored optimization to maximize both clinical and structural benefits.</dc:description>
	<dc:publisher xml:lang="en">Universitas Brawijaya</dc:publisher>
	<dc:date>2026-10-13</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
	<dc:type>info:eu-repo/semantics/publishedVersion</dc:type>
	<dc:format>application/pdf</dc:format>
	<dc:identifier>https://heartscience.ub.ac.id/index.php/heartscience/article/view/20781</dc:identifier>
	<dc:identifier>10.21776/ub.hsj.2026.007.04.16</dc:identifier>
	<dc:source xml:lang="en">Heart Science Journal; Vol. 7 No. 4 (2026): Navigating High-Risk Cardiovascular Subsets: Premature Disease, Plaque Complexity, and Precision Interventions; 90-94</dc:source>
	<dc:source>2721-9984</dc:source>
	<dc:source>2721-9976</dc:source>
	<dc:source>10.21776/ub.hsj.2026.007.04</dc:source>
	<dc:language>en</dc:language>
	<dc:relation>https://heartscience.ub.ac.id/index.php/heartscience/article/view/20781/627</dc:relation>
	<dc:rights xml:lang="en">Copyright (c) 2026 Fitri Febrianti Ramadhan, Ardian Rizal, Wella Karolina</dc:rights>
	<dc:rights xml:lang="en">http://creativecommons.org/licenses/by/4.0</dc:rights>
</oai_dc:dc>