Total Arterial Revascularization: Replacing an Artery with an Artery

If a frozen elephant trunk has not been done, the alternative is EVAR, endovascular aortic repair, sealing off the re-entry tear with a stent graft placed through the groin. In the thoracic aorta this is straightforward because there are no major branch vessels to route around. In the abdominal aorta, where the gastroepiploic, superior mesenteric, renal and inferior mesenteric arteries branch off, patient-specific imaging has to be sent to a stent graft manufacturer so they can build a graft with branches positioned at the right levels before it is deployed.

Complexity is determined by the workup, not by symptoms alone. Watch the troponin and creatine kinase trend: if enzymes keep rising, or symptoms have not improved after 72 to 96 hours of conservative therapy, antiplatelet medication, or thrombolysis where that pathway was used, that is the signal to make a specialist referral so a senior physician can perform an angiogram and determine disease severity directly.

One ECG showing borderline bradycardia, combined with a two-year history that has defeated standard testing, points toward right coronary artery disease, which is notoriously difficult to pick up outside direct angiography. Pending access to a coronary angiogram, start dual antiplatelet therapy, 75 mg of clopidogrel and 150 mg of aspirin daily, plus a statin at 40 mg daily to stabilize the plaque, and check cardiac enzymes at his next chest pain episode. A positive enzyme without an ECG change would classify him as unstable angina, since that diagnosis only requires a troponin derangement alongside chest pain, not an ECG change. A strong maternal family history of cardiac illness is relevant here even though he is young and does not smoke or drink.

RFCL is an old scoring system we do not use anymore; it produces more false negatives than anything useful. Score this patient with a EuroSCORE now, and a SYNTAX score once an angiogram is available.

Before 45, women have high estrogen and regular cycles, giving them roughly one-eighth the coronary risk of a man. After menopause, that risk is still about half of a man's, but it rises four-fold from her own prior baseline. The presentation also changes: expect a longer course, days rather than hours, with softer symptoms, a flu-like feeling or mild chest tightness, that get mistaken for a common cold. The best test in this group is a CT coronary angiogram, because women tend to have a lower coronary calcium load, which gives CT angiography a strong positive predictive value for them specifically. Diabetics have a parallel but distinct problem: autonomic nerve involvement blunts the pain signal, so they report less chest pain for the same severity of disease while still showing the nausea, fatigue and cold extremities of an infarction. Physicians need to actively look for the disease in diabetics rather than wait for classic pain.

A bypass technique that uses grafts built entirely from arteries harvested from the chest wall, rather than veins taken from the leg, on the principle that a coronary artery is best replaced with an artery.

In a cited dataset of close to 4,000 patients treated between 2011 and 2018, CABG showed roughly 13 percent mortality against roughly 26 percent for stenting, and roughly half the rate of major adverse cardiovascular and cerebrovascular events.

A stabilizing device known as an octopus, which immobilizes the section of heart being grafted while the arterial connections are made.

That the patient be considered for total arterial revascularization wherever it is even remotely feasible, since the choice affects patient outcomes over decades rather than years.