Chapters
- 00:00:14Primary care doctors are really the gatekeepers to this puzzle,
- 00:00:18because they’re looking at the whole patient.
- 00:00:20A primary care doctor should start thinking about cardiac amyloidosis,
- 00:00:25AL amyloidosis, when they see signs of worsening heart failure,
- 00:00:30worsening dyspnea on exertion,
- 00:00:32worsening ascites and pedal edema,
- 00:00:35along with signs of other organ involvement.
- 00:00:38So, they will commonly see nephrotic syndrome— a lot of protein in the urine.
- 00:00:43They will commonly see acquired Factor X deficiency.
- 00:00:46They will see patients developing bruising under their eyes, so-called "raccoon eyes".
- 00:00:51They will start noticing that a patient is getting light-headed when they stand up.
- 00:00:55And then, they will start thinking about where to send the patient
- 00:00:59and a lot of times they’ll refer the patient to a cardiologist or a nephrologist.
- 00:01:04So, I think the primary care doctor actually is key to
- 00:01:07an early diagnosis of cardiac amyloidosis
- 00:01:10because they will be the first person to see this disease.
- 00:01:13The other test that they might start doing is, you know,
- 00:01:15looking for a plasma cell dyscrasia with serum-free light chains
- 00:01:18and urine-free light chains, and things of that nature.
- 00:01:21And, all of this can also be done in consultation with a haematologist.
- 00:01:26But, the most important test, I think, for a primary care doctor to order
- 00:01:30when somebody has worsening heart failure symptoms,
- 00:01:33is an echocardiogram and an electrocardiogram, an ECG.
- 00:01:37So, it is crucial that the primary care doctor considers
- 00:01:42this diagnosis as an emergency
- 00:01:46before organ dysfunction progresses and the organs fail.
- 00:01:59The 75-year-old lady
- 00:02:02who presented to primary care doctor with symptoms of
- 00:02:05congestive heart failure with reduced exercise tolerance,
- 00:02:10shortness of breath with exertion, and swelling of her legs.
- 00:02:15The primary care doctor called me personally,
- 00:02:19and asked what workup should be done, and I suggested her to get the
- 00:02:24plasma cell dyscrasia markers done
- 00:02:27and I would see her in my clinic.
- 00:02:29The plasma cell dyscrasia markers were already obtained before
- 00:02:33the patient came to my clinic,
- 00:02:35and they were significantly abnormal; with elevated serum-free light chain levels,
- 00:02:42as well as immunofixation, which was positive.
- 00:02:46So, by the time the patient arrived in my clinic, which was three weeks later,
- 00:02:51the patient already had the diagnosis of plasma cell dyscrasia
- 00:02:56with infiltrative cardiomyopathy,
- 00:02:59and I just needed to do an abdominal fat pad aspiration in my clinic
- 00:03:04and subject it to Congo red staining, which came back as positive.
- 00:03:09And, she has already begun treatment for her AL amyloidosis
- 00:03:15within three weeks from her initial presentation.
- 00:03:19So, this again speaks very highly of the primary care doctor,
- 00:03:24who did not wait for the consult to go through electronic medical records,
- 00:03:30to be seen by a doctor in cardiology, seen by a doctor in haematology,
- 00:03:35seen by a doctor in echocardiography.
- 00:03:38But, she took it upon herself to make the phone calls so that
- 00:03:43her diagnosis was obtained in a timely fashion to
- 00:03:47prevent further deterioration of her congestive heart failure and cardiac involvement.