Cardiology
Expert discussions on heart failure, arrhythmias, interventional procedures, and cardiovascular risk management.
Recent Discussions
How do you think about using contraction alkalosis as a mark of achieving goal diuresis?
Thank you for your insightful question. Residual congestion at discharge for patients treated for decompensated heart failure is associated with increased rates of readmission and mortality. While I do occasionally use the development of metabolic alkalosis as a marker of decongestion, a review of t...
Do you recommend checking urine sodium 2 hours after loop diuretic administration to determine the need for dose adjustment in a patient with acute decompensated heart failure?
I know that is maybe a more physiologic way, but I can tell if it is working just by the urine output. The urine output is not going to increase following a loop diuretic without a natriuresis. And what good id an increased urine Na if the volume of urine is insufficient? If I am diuresing in decom...
Would you consider a secondary prevention ICD in a patient who had a cardiac arrest deemed attributable to a spontaneous coronary artery dissection (SCAD), with no intervention performed?
In patients who experience a cardiac arrest attributed to spontaneous coronary artery dissection (SCAD), the decision to pursue secondary prevention ICD implantation requires careful consideration of the reversibility of the underlying cause and the presence of any residual arrhythmogenic substrate....
How do you approach the management of aortic stenosis in an elderly, frail patient with multiple comorbidities who is symptomatic but considered high risk for surgical aortic valve replacement?
In an older patient with severe aortic stenosis (AS) who is not a candidate for surgery, there are 3 treatment options – TAVR, balloon aortic valvuloplasty (BAV), and medical management.In the original PARTNER trial, 358 patients with severe AS who, in the judgement of at least 2 cardiac surgeons, w...
What is a reasonable protocol for how long to hold warfarin and/or DOACs before cardiac catheterization?
Thanks for bringing up this question Dr. @Dr. First Last. This is one of the most common questions my nurses ask me when scheduling cardiac catheterizations and other procedures. Here is my answer based on experience and literature. As such, there is no formal study, but the risk of thromboembolism ...
How do you approach the risk/benefit ratio of pericardiocentesis as opposed to close observation with serial TTEs in a hemodynamically stable elderly patient on anticoagulation with a large circumferential pericardial effusion?
Core principle: balance the diagnostic and therapeutic benefits of drainage against procedural risks heightened by anticoagulation and patient frailty. Key Considerations: Indication for pericardial drainage: Diagnostic: uncertainty regarding malignancy, infection, or hemopericardium. Therapeutic:...
Do you prefer CTA or MRA for further imaging in patients with ascending aortic dilatation detected on TTE?
The first question you need to ask yourself is whether or not any further evaluation of the aorta is needed at all. Depending on why the echo was ordered in the first place, the finding of the dilated aorta may be a serendipitous finding unrelated to the indication for the echo, and easily explainab...
In patients presenting to the hospital with atrial fibrillation of >/= 48 hours and are started on anticoagulation, provided they spontaneously convert with AV nodal blocking agents but then revert back into AF, would you need LAA imaging before a rhythm control strategy with AADs or cardioversion?
I would approach this the same way as if the patient had never spontaneously converted. There is a risk of stroke with chemical as well as electrical cardioversion, so should factor in CHA2DS2-VASc when making that decision. If CHA2DS2-VASc is 0 and no other high-risk features (rheumatic disease, HC...
Do you recommend avoiding radial artery access for cardiac catheterization to preserve potential future dialysis access sites in patients with advanced CKD?
With Radial arterial catheterization ( RA-CA), structural damage to the artery manifests as intimal tears and medial dissection along the length of the vessel. Further, even though 2-30% of the arteries will thrombose, about 50% of these will recanalize at 1 month. In spite of this, endothelial func...
How do you approach the management of extremely low LDL levels in older adult patients receiving statin therapy for primary prevention of cardiovascular disease?
In the absence of side effects, I am not concerned about very low LDL levels (e.g., less than 20 mg/dL), as there is a fairly linear association between LDL and CV risk, and there is no convincing evidence that even extremely low LDL levels are associated with cognitive impairment, intracranial hemo...