What is the clinical evidence from this study?

Study design: Case Report. Population: Papillary muscle rupture after delayed inferior STEMI (n=1). Intervention: Impella CP device and emergent surgery.

What question did this study set out to answer?

This research focuses on the challenges of diagnosing and treating papillary muscle rupture following myocardial infarction, especially in delayed presentations.

May 20, 2026American Journal of Respiratory and Critical Care Medicine

B50-10 Papillary Muscle Rupture After Delayed Inferior St-Segment Elevation Myocardial Infarction: Rapid Diagnosis and Impella-Assisted Surgical Rescue

Q: What does this research mean for the field?

Impella CP-assisted stabilization combined with emergent surgery can successfully rescue patients presenting with cardiogenic shock due to papillary muscle rupture following delayed inferior STEMI. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

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Key result

Impella CP and emergent surgery rescue a patient in cardiogenic shock from post-STEMI papillary muscle rupture.

Why the study?

Despite advances in reperfusion therapy, delayed presentation of myocardial infarction complicated by papillary muscle rupture continues to pose diagnostic and management challenges.

Key Points

This research focuses on the challenges of diagnosing and treating papillary muscle rupture following myocardial infarction, especially in delayed presentations.
A 68-year-old male with prior health issues and chest pain underwent multimodal imaging including CTA, coronary angiography, and TEE for diagnosis.
An Impella CP device was used for hemodynamic support prior to emergent surgery.
The patient underwent mitral valve replacement and CABG with postoperative follow-up using echocardiography.
Papillary muscle was completely ruptured at its base during surgery with preserved left ventricular systolic function and inferior wall hypokinesia.
Postoperatively, the patient was successfully weaned off inotropes within 48 hours, confirming normal biventricular function.
Multimodal imaging and coordination among care teams significantly reduced mortality related to this complication.

Study Design

Type

Case Report (n=1)

Structured PICO

Population

A 68-year-old man with prior thoracic aortic aneurysm repair and daily tobacco use presenting with delayed inferior STEMI complicated by cardiogenic shock and posteromedial papillary muscle rupture (n=1).

Intervention

Multimodal imaging (CTA, coronary angiography, TEE), Impella CP mechanical circulatory support, followed by emergent mitral valve replacement and double-vessel CABG.

Outcome

Survival and postoperative recovery (weaning from inotropes and biventricular function).

Rapid multimodal imaging and temporary mechanical circulatory support with Impella CP can successfully stabilize patients with post-MI papillary muscle rupture for emergent surgical repair.

Discussion

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Implication

Emphasizes urgent surgical referral for post-MI shock; reinforces consensus on mechanical complication management despite reperfusion advances.

Cite This Study

Tarakji et al. (2026) conducted a case report in Papillary muscle rupture after delayed inferior STEMI (n=1). Impella CP device and emergent surgery was evaluated. Impella CP-assisted stabilization and emergent surgery successfully rescued a 68-year-old man presenting with cardiogenic shock due to papillary muscle rupture after delayed inferior STEMI.

synapsesocial.com/papers/6a0d4fecf03e14405aa9b6d7 https://doi.org/10.1093/ajrccm/aamag162.1403

Topics

STEMI management

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Implication

Emphasizes urgent surgical referral for post-MI shock; reinforces consensus on mechanical complication management despite reperfusion advances.

B50-10 Papillary Muscle Rupture After Delayed Inferior St-Segment Elevation Myocardial Infarction: Rapid Diagnosis and Impella-Assisted Surgical Rescue

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Topics

B50-10 Papillary Muscle Rupture After Delayed Inferior St-Segment Elevation Myocardial Infarction: Rapid Diagnosis and Impella-Assisted Surgical Rescue

Key Points

Study Design

Structured PICO

Discussion

Implication

Cite This Study

Also Consider

Topics

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