Exam 2 CARDIOTHORACIC/VASCULAR EMERGENCIES Flashcards
Aneurysm is?
Abn vessel dilation
Dissection is?
Tear in intima of vessel wall
Blood into media -> splits creating false channel
Artherosclerotic Aneurysm U located?
Preceding sxs?
U a/w?
abdominally
U none before rupture
Comorbidities: CAD, PVD, COPD, DM, Renal fail
AAA diagnostics? (2)
US for dx and follow (always do US for abd complaint)
CT/MRI for plan
AAA intervention determination?
< 5.5, not enlarging, asympt =
US Q 6-12 mo
> 5.5, rapid expansion or sympt =
intervention
AAA presentation? (6)
Abd pain P Flank/Back pain Pulsatile abd mass Tender HypoTN Hemodynamic instability
Ruptured or Sympt AAA management?
ABCs 2 large bore IVs Type/Cross 10u PRBC Pain mgmt BP @ 80-100 US To OR
TRIAD of Aortic Dissection- CONSTELLATION
- Abrupt onset of thoracic or abdominal PAIN w/a sharp, tearing quality
- mediastinal &/or aortic WIDENING on chest radiograph
- HTN +/- discrepant BP or pulse (absence of a proximal extremity)
Aortic Dissection (AD) U located?
Risk factors? (4)
thoracic
age
HTN
CT dz
Preggos
AD presentation? (7)
EMERGENCY Chest pain Back pain b/w shoulder blades Neuro ∆s Distal ischemia (limb, gut, kidney) Acute cardiac failure (aortic regurg, ischemia) HypoTN Shock w/ rupture
AD preceding signs/sxs? (6)
HTN Discrepant BP b/w extremities Widen mediastinum Pleural capping Pleural effusion Hoarseness
AD Type A?
In ascending aorta
Most C
Emergent surgery for all
High mortality
AD Type A complications?
Aortic rupture
Tamponade
Acute aortic regurg
Acute coronary ischemia
AD Type B Uncomplicated?
Not involving ascending aorta
No rupture or ischemia
Surgical or endovascular tx
AD Type B Complicated or Failed Mgmt sxs?
Persistent pain
Progress to dissection
Marfans
AD imaging? (3)
Spiral CT = standard of care
MRI
TEE
AD initial mgmt? (3)
1) ↓ SBP < 100
2) ↓ LV dP/dT (contractility)
3) Pain mgmt
w/ β-block then vasodilator (Nipride)
Thoracic Aortic Aneurysm invasive tx:
Ascending and/or Arch?
Descending?
asc = Sternotomy w/ surgical repair, P aortic valve
des = Thoractomy w/ surgical repair or endovasc graft
Thoracic Aorta injury: Transection caused by?
U from rapid deceleration
???? slide 30
Thoracic Aortic injury: Transection diagnosis?
Mishaped mediastinum Blurred aortic knob Wide mediastinum 2nd rib fracture Pleural effusion Apical capping
CXR then Spiral CT
Thoracic Aortic injury: Transection mgmt?
Open or endocardial repair
High risk of paraplegia
Blunt cardiac injury: Cardiac Rupture?
U pulmonary hilum
Blunt cardiac injury: Myocardial Contusion?
similar sxs to MI (pain, N/V, SOB, arryh)
P Rv or RA infarct or rupture
Serial ECG/telem
Serial enz
ECHO
watch for 48 hrs
Traumatic Diaphragmatic Hernia?
U Male and L sided
Resp distress ↓ Breath Sounds BS in chest Abd pain Paradox resp
Tx w/ transabdominal repair
Penetrating Chest Trauma signs/sxs? (5)
Hemoptysis Pneumothor SQ emphysema (air in skin on chest/neck) Mediastinal emphysema Beck's Triad
Penetrating Chest Trauma work-up?
Helical CT
Echo
Angiography
Penetrating Chest Trauma: Emergent L Thoracotomy when?
Hemodyn unstable
Witnessed arrest despite resuscitation
Esoph Rupture/Boerhaave Synd location?
Presentation? (6)
L postlateral distal esoph
Retrosternal/Up abd pain Tachy Dyspnea Fever Odynophagia Hamman's Sign (crunching, rasping sound synchronous w/ heart beating against air-filled tissues)
Boerhaave Synd diagnostics? (3)
Tx? (4)
CXR = free air in mediastinum
CT
Esophogram w/ gastrograffin
FATAL if not caught (still high mortality)
ABCs
Fluids
ABX
Surgery
PeriMyocardial Infarct Emergencies include? (3)
Acute VSD (Ventricular Septal Defect)
Acute Mitral Regurg
Acute Mesenteric Ischemia
Acute VSD (C) a/w?
Exam finding? (3)
Transmural Anterolat MI
2-5 days post
Harsh, holosystolic murmur
+/- thrill
↓ hemodynamics
Acute VSD study?
Tx?
Echo w/ color flow
Thrombolytics
URGENT SURG REPAIR
Acute Mitral Regurg caused by?
Papillary mm rupture in acute MI
U postmedial
~13 hrs post
Acute Mitral Regurg exam findings?
Tx?
Acute pulmonary edema
Pansystolic murmur, apex to axilla
↓ afterload
U surgery necessary
Acute Mesenteric Ischemia caused by Arterial Embolism?
C 2° to cardiac thromboembolism (Afib)
U location is SMA, IMA least
Acute Mesenteric Ischemia caused by Arterial Thrombus?
U from progression of preexist atherosclerosis
C involvement of 2 vessels following dehydration, hypercoag state
Acute Mesenteric Ischemia caused by Non-occlusive events: Types of causes?
Severe/Prolonged vasoconstrict
Low CO
α-agonists, digoxin, ergots, cocaine
Acute Mesenteric Ischemia exam findings?
If SMA involvement?
Early dx critical (< 12 hrs)
Severe abd pain w/o many abd findings,
N/V/D and ileus (P) + guaiac
TRIAD of SMA embolism:
GI emptying
Abd pain
Underlying cardiac dz
Acute Mesenteric Ischemia labs? (3)
CBC = Leukocytosis D-Dimer = ↑ LDH = ↑
All are non-specific
Acute Mesenteric Ischemia management? (6)
ABC Cardiac monitor O2 IV access/fluids Abx Pain mgmt
Acute Mesenteric Ischemia imaging?
Multi-detector CT
Angiography
Acute Mesenteric Ischemia tx?
Papaverine Infusion
Embolectomy
Intraarterial Thrombolysis
Bypass or Reimplant
Aorto-Iliac Occlusive Dz is?
EMERGENCY
Saddle embolism at bifurcation OR
In-situ thrombosis of already dz’d segment
Aorto-Iliac Occlusive Dz presentation?
Neuro deficit including paralysis,
Absent femoral pulses
Aorto-Iliac Occlusive Dz tx?
Quick imaging
Surgery
Acute Arterial Obstruction is?
EMERGENCY
Sudden stop of blood to extremity
Acute Arterial Obstruction cause by? (4)
Embolism U from heart or aorta
Thrombus in situ from trauma or ↓ flow
Hypercoag state
External compression of artery
Acute Arterial Obstruction from Embolism U result of? (5)
Afib LV thrombus Cardiac myxoma (benign tumor) Valve dz Plaque, fat, air
Acute Arterial Obstruction from In-situ Thrombus result of? (5)
Catheter Stent/graft Popliteal aneur Hypercoag or low flow states Arterial dissection
6 P’s of Acute Obstruction?
Pain Pallor Paresthesia Paralysis Pokilothermia Pulselessness
Acute Arterial Obstruction tx?
Emergency surg Heparin Thrombolytics Thrombus removal Embolectomy or Bypass
Compartment Syndrome C after what?
6 Ps of Compartment Synd?
Reperfusion of ischemic limb (U) calf
Pain out of proportion Pain w/ passive stretch Paresthesia Paralysis Pokilothermia Pulselessness
Compartment Syndrome diagnosed how?
Untreated w/i 8hrs P results in?
Clinically
P pressure measurement > 25 mmHg
Permanent nn damage
Limb loss
Death
Compartment Syndrome tx?
Fasciotomy