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Marfan Syndrome and Aortic Dissection. Briefly: What is it? A single gene mutation causing defective production of fibrillin in the extracellular matrices.

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Presentation on theme: "Marfan Syndrome and Aortic Dissection. Briefly: What is it? A single gene mutation causing defective production of fibrillin in the extracellular matrices."— Presentation transcript:

1 Marfan Syndrome and Aortic Dissection

2 Briefly: What is it? A single gene mutation causing defective production of fibrillin in the extracellular matrices of body systems.

3 Uh Huh? So what does that mean?

4 Skeletal? Ophthalmology? Pulmonary? Cardiology? Others? What does it mean to you as a Paramedic?

5 A child with Marfan Syndrome

6 Case Study! A 38 y.o. man comes to the ED two hours after eating in a restaurant with his wife. He c/o severe abdominal pain, nausea, and just had a loose BM. He had a couple of cocktails at dinner. He has a hx of HTN but can’t remember the name of his medication. On further questioning he states that the pain started in his chest but now has moved to his mid-abdomen. His BP is 160/110, HR is 90, RR is 18. His abdomen is tender on deep palpation.

7 Lets Start! What causes it? A single gene mutation of the FBN1 gene on chromosome 15, which encodes a glycoprotein called fibrillin-1. Hereditary ~ No one race or gender seems to be affected more ~Estimates of 60,000-200,000 (1:1500-5000) people in the US alone have Marfan Syndrome ~One of the most common hereditary disorders ~The most common single gene mutation disorder ~ Increasing age of father shown to increase likelihood of Marfan Syndrome

8 The odds of getting it? Dominant inheritance gene Or New mutation (1:4) Fun Fact! The average person has 8 genetic mutations!

9 Important!  Don’t count on seeing all or even some signs of Marfan Syndrome.  There are many different levels of affectedness. With that said, here’s what to look for!

10 Skeletal Features (Picture time) ~Tall and thin (dolichostenomelia) Longer limbs Shorter thorax, Arm span greater than height Increased metabolism (thin)

11 Skeletal Features ~ Long fingers (arachnodactyly) Thin “weak looking wrists”

12 Skeletal Features ~Scoliosis Gives the characteristic shorter upper body

13 Skeletal Features ~Pidgeon Chested (Pectus Excavatum) or Protrussion of the sternum ( Pectus Carinatum)

14 Skeletal Features (other)  Flat Feet  Joint hyper mobility  Malocclusions (misaligned teeth)  Stooped Shoulders  High Palate  Can’t straighten at elbows (deep set sockets)  Hernias (from underdeveloped musculature)  Unexplained stretch marks (sometimes your only clue)  Dural Ectasia Look for speech disorders caused by misaligned teeth, high palates, and small jaws.

15 Ophthalmology of Marfans Lens Problems! Diagnosed using a slit lamp biomicroscope at optometrist

16 Eye Features Dislocated lens or retinal detachment

17 Eye Features Early onset cataracts A person with cataracts will have a blurred center of vision.

18 Other Eye Features  Flat cornea  Myopia  Early Glaucoma

19 Pulmonary  Spontaneous pneumothorax! As a paramedic, keep an eye out for sudden chest, back, and arm pain, shortness of breath, and cyanosis Breath sounds?

20 Cardiology  Aortic enlargement  Aortic aneurysm  Aortic valve regurgitation  Mitral valve prolapse  Murmurs As paramedics, this is what you’ll need to worry about! (that’s why they wanted me to talk about this)

21 Aortic Enlargement and Aneurysm  Aorta and major arteries have the highest concentration of elastic connective “stretch” tissues in the body.  Diagnosed with many forms of X-Ray/Contrast Scans  AAA most common type of aortic aneurysm because amount of protein fibers reduce the farther away from the heart the aorta is.  S/S?  Pulses? Pulsating above umbilicus Aortic bruits Pain in abdomen, back or flank. Hypertension (compensation) Pain/hypertension/mass triad Acute, severe, constant pain. Tearing/ stabbing pain “Never felt this before” Feeling of doom Migrating

22 Aneurysm to Rupture

23 Aortic Dissection/Rupture  Free flowing accumulation of blood in abdomen  85% survival when diagnosed and treated.

24 Misdiagnosis Huge opportunity for misdiagnosis  Chest pain- MI, Pulmonary Embolism, Pleurisy…  Abdominal – Flu, food poisoning, Ulcers…  Back- Kidney stones, back/spinal injury… 50% of untreated dissections won’t last 48 hours. 1% survival rate drop per hour.

25 Aortic Repair Risk of future aneurysm ~ 50% or Dacron material

26 Mitral valve Prolapse  http://www.youtube.com/watch?v=IBBC u3x_TKo http://www.youtube.com/watch?v=IBBC u3x_TKo  Complications of infection and sepsis  Complicates aortic repair surgeries

27 Why Marfans Syndrome? 250 times more likely to experience aortic dissection! Average life expectancy of person with Marfans is 35 – 45 years

28 Treatment? Stabilize patient ABC’s, give Oxygen Get to a certified emergency department that can handle a trauma surgery. Blood pressure?

29 Drugs?  Beta Blockers Woman with Marfans syndrome can now become pregnant thanks to beta blockers. Previously, pregnancy put to much stress on the aorta.

30 Famous People?  Abe Lincoln? Nope! “multiple endocrine neoplasia Type 2B”  Flo Hyman – Professional volleyball player, died during a match against Japan of aortic dissection.  Arsenio Hall - Comedian  Johnny Appleseed (speculative)  Joey Ramone of “The Ramones” died of lymphoma  Osama Bin Laden (speculative)  Johnathon Larson – Composer of Rent

31 Wrap-Up!  Suspect Aortic Dissection for chest, back, or abdomen pain (of any sort)  Recognize connective tissue disorders in people  Communicate your suspicion  Get it DIAGNOSED!

32 http://www.youtube.com/watch? v=UnW1abqM3_s


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