Key result
Urgent alcohol septal ablation eliminates LVOT gradient and improves hemodynamics in a shocked HOCM patient.
Why the study?
The management of distributive shock worsened by obstructive shock in patients with hypertrophic obstructive cardiomyopathy in acute settings is challenging and not well established.
Does urgent alcohol septal ablation improve haemodynamics in a patient with HOCM and combined distributive/obstructive shock?
Case Report (n=1)
Does urgent alcohol septal ablation improve haemodynamics in a patient with HOCM and combined distributive/obstructive shock?
Urgent alcohol septal ablation may provide immediate haemodynamic improvement in patients with HOCM experiencing combined distributive and obstructive shock, though overall survival depends on the underlying critical illness.
Hypothesis-generating for urgent septal ablation in HOCM shock; controlled studies needed to confirm benefit and survival impact.
A 69-year-old man, known with hypertrophic obstructive cardiomyopathy (HOCM), was referred to our hospital because of progressive hypoxaemia and sepsis after admission for respiratory infection. Once at the emergency department, cardiopulmonary resuscitation, intubation and mechanical ventilation were necessary. Despite vasopressors and colloids the patient remained haemodynamically unstable. Because of the conviction that the distributive shock, caused by sepsis, was worsened by an associated obstructive shock related to the HOCM, an alcohol septal ablation (ASA) was attempted in these acute circumstances. Immediately after the ASA the gradient over the left ventricular outflow tract disappeared and the mean arterial pressure and oxygenation increased. Despite his cardiovascular recuperation the patient died a couple of days later. Nevertheless we achieved an improvement of the haemodynamic situation of this patient with HOCM by performing an urgent ASA.
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Galle et al. (2010) conducted a case report in Hypertrophic obstructive cardiomyopathy (HOCM) with shock (n=1). Alcohol septal ablation (ASA) was evaluated on Haemodynamic improvement (gradient over left ventricular outflow tract, mean arterial pressure, and oxygenation). Urgent alcohol septal ablation successfully eliminated the left ventricular outflow tract gradient and improved mean arterial pressure and oxygenation in a patient with HOCM and shock.
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