SURG NOTES

SKIN & SHIT

  • Pyoderma Gangrenosum vs Ecythema gangernosum
    • Pyoderma gangernosum β‡’ associated systemic disease (IBD-heme-arthro)
      • dx of exclusion
      • debridement is avoided due to potential of pathergy induction
      • management corticosteroids systemic/local
      • Biopsy of margins reveal β†’ neutrophils infiltrate
    • Ecythema gangernosum β‡’ Pseudomonas
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  • Burns
    • < 5 days β†’ staph
    • > 5 days β†’ Pseudomonas or Candida
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    • Management:
        1. Stabilization (ABC)
        1. Resusitation (Fluids)
        1. Catheterization
        1. Burn Care: Irrigation, gentle gauze debridement + application of topical abx + nonstick dressing
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    • What signs in a burn patient warrants a diagnosis of sepsis?
      • Any patient with high TBSA burn, should be observed for sepsis. Findings that warrant a diagnosis are:
          1. < 36.5C or > 39C
          1. Tachycardia (>90) or Tachypnea (>30) or refractory hypotension
          1. New Lab abnormalities (Leukocytosis/Leukopenia/Thrombocytopenia)
          1. Organ dysfunction (Oliguria - new onset enteral Feeding intolerance - GI hypomobility & ileus)
      • If suspected β†’ cultures + empiric antibiotics
    • At risk of hypermetabolic syndrome
      • TO offset & decrease its risk β†’ start enteral feeding within 24 hours of burn
        • Enteral > Parenteral
        • Dextrose has low calories
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MAMMILIAN BITES
  1. Wound care β†’ irrigation and debridement + leave it for secondary repair (EXCEPT FOR COSMETIC causes or deep muscle/blood supply affection)
  1. Imaging IF fracture/fb suspected
  1. Infection β†’
    1. Tetanus if ≀ 5 years since last vaccination
    2. Amoxicillin-clavulinic acid if cat bite, involves face/hand/foot/joint/genitalia, or if immunocompromised or if primary closure is done
    3. Consider rabies toxin
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Basal Cell Carcinoma (BCC):
  • Management depends on high-risk vs low-risk tumors:
    • Low Risk (size ≀ 2 cm; on trunk or extremities, EXCLUDING hands & feet)
    • High Risk: [ttt β†’ Mohs microscopic surgery]
      • Lesions on face, neck, hands, feet, genitalia (especially if β‰₯ 1cm)
      • Any lesion β‰₯2 cm in any location
      • Lesions with aggressive histology or poorly defined borders.
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Melanoma
  • Sus lesions should undergo full-thickness excisional biopsy with initial margins of 1-3mm of normal tissue.
  • Visual Assessment of Melanomas
    • ABCDE Criteria (β‰₯1 is sus)
      • Asymmetry
      • Border Irregularity
      • Color variation (within lesion or compared to others)
      • Diameter β‰₯6 mm
      • Evolving appearance overtime
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    • 7-Point Check List (β‰₯1 major OR β‰₯ 3 minor is sus)
      • Major β†’ Change in appearance (Color, Size, Shape)
      • Minor β†’ Diameter β‰₯7 mm, Local Inflammation, Bleeding/Crusting, or sensory symptoms
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    • Ugly Duckling Sign β†’ One lesion is significantly different from others on the patient
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LUNGS & SHIT

  • Pulmonary Contusion < 24hr post-infusion in lung trauma patient
    • most likely anterior β†’ anterior infiltration not specified anatomically
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  • 24-72hr post inticing event (Ortho procedure - Long bone fracture - Pancreatitis)
    • Resp Distress (>90%) β‡’ Hypoxemia, Tachypnea, Dyspnea
    • Neuro dysfunction (>50%) β‡’ AMS, Seizures, Strokes
    • Petechial Rash (<50%)
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  • Flail Chest
    • Happens when >3 continuous ribs in >2 spaces cause an isolated flail chest that moves paradoxically to chest wall during respiration.
      • It causes hypoxia via:
          1. Impaired generation of negative intrathoracic pressure during inspiration & increased dead space during expiration
          1. Associated pulmonary contusion due to Blunt trauma
          1. Fracture-related pain
    • management β†’ mech ventilator + positive pressure which can force the flail segment to move outwards with the chest during inspiration
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  • Persistent large air leakage despite secure chest tube in a patient with hx of trauma β†’ check for tracheobronchial injury via bronchoscopy
    • Can present as air leakage, persistent pneumomediastinum, pneumothorax, Subcutaneous emphysema DESPITE tube thoracostomy
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  • Hemothorax management
    • Hemothorax + hypotension + tracheal deviation β‡’ MASSIVE HEMOTHORAX (>1500mL)
    • Management of hemothorax is chest tube (thoracostomy), which if yields >1500mL or >20mL/kg β‡’ EMERGENT Surgical Thoracotomy
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  • Bronchial Carcinoid Tumor
    • Most common lung tumor is young adults/teens, especially NON-SMOKERS.
    • Presentation β†’ Hemoptysis, air way obstruction, recurrent pneumonia
    • Dx β†’ Contrast-enhanced tumor with endobronchial component
      • Confirmation with bronchoscopy & biopsy
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Pneumothorax management
  1. tension→ needle decompression & chest tube
  1. Spontaneous
    1. Small <2cm β†’ O2
    2. Large >2cm
      1. Stable β†’ needle decompression
      2. Unstable β†’ emergency chest tube
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TB
  • Came from an endemic area + hemoptysis + CXR shows upper lobe opacity
  • If patient is stable β†’ Resp Isolation
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Hemoptysis
Algo
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if bronchoscopy fails β†’ Pulmonary Angio embolization β†’ if fails: Thoracotomy
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The patient should be placed with the bleeding lung in the dependent position (lateral position) to avoid blood collection in the airways of the opposite lung.
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Foreign Body Aspiration
  • Can cause
    • Atelectasis
    • Unilateral hyperinflation with mediastinal shift
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Mucus Plugging
  • Surgery (anesthesia) + Smoking β‡’ Increases the risk of mucus plugging.
    • Causes atelectasis (collapse) β†’ Ipsilateral mediastinal shift, Dullness to percussion, diffuse opacity, narrower rib spacing
    • management:
      • Minor β†’ Chest Physiotherapy
      • Large β†’ Bronchoscopy
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TRALI
  • 6hr after transfusion starts β†’ Tachycardia, hypotension +/- fever + CXR shows bilateral pulmonary infiltrates
  • Management β†’ Cessation of transfusion + Resp Support
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Empyema Managament:
  • Free Flowing β‡’ Chest Tube +/- Intrapleural fibrinolytic therapy (tPA/DNase)
  • Loculated/Highly Fibrotic β‡’ Surgical Decortication
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Blunt Chest Trauma Management:
Show Pic
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Diaphragmatic Hernia
  • Follows Blunt Thoracoabdominal trauma
  • CXR shows NGT (correcty positioned along the greater curvature of the stomach) is in the Left-Side of the CHEST not the abdomen. β‡’ CT TO CONFIRM DX.
    • ttt β‡’ Surgical Repair (as it can cause intestinal strangulation and death)
  • Complications:
    • Lung Compression β†’ Few days after trauma, the patient still feels SOB +/- cough
    • Bowel Obstruction β†’ Few days after trauma, patient develops NV and Abdominal Pain
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Lung Resection
  • Indications β†’ Cancer, Severe COPD, persistent infection despite medical ttt
  • BEST INDICATOR OF POST-OP PULMONARY MORBIDITY /OUTCOMES β‡’ FEV1 & DLCO

URO & SHIT

  • Testicular Torsion
    • Testicle can be swollen, erythematous, tender + the usual buzzy elevated/horizontal position/absent cremasteric reflex
    • Can be associated with mild hydrocele
    • heterogenous echotexture β†’ late finding that indicates necrosis
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  • Varicocele
    • Sites:
      • Most common left
      • Bilateral is also common
      • Isolated right side is suspicious for tumor or thrombosis
    • Dx β†’ US
    • Complications β†’ Infertility & Testicular Atrophy
    • ttt β†’
      • Older β†’ NSAIDs + support
      • Younger β†’ follow-up for signs of atrophy or semen analysis changes β†’ Gonadal vein ligation
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  • BPH can recur after TURP as it doesn’t remove all the prostatic tissue
    • Physical examination is not reliable & can show a normal prostate, despite having BPH
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  • Symptomatic Ureteral Stone management
    • Show pic
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      UTI = dysuria & frequence or pyelonephritis (Fever + CPA tenderness)
      AKI = lactic acidosis or high creatinine
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      < 5mm β‡’ Conservative alone (fluids - analgesics)
      5-10mm β‡’ alpha 1 antagonist (tamsulosin)
      >10 mm β‡’ urological intervention (lithotripsy or stent)
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  • Patient with MVA + pelvic fracture + blood at meatus. Dx?
    • Answer
      Dx β†’ PUI
      • Blood at meatus + high riding prostate due to injury of bulbomembranous junction + inability to void + perineal bruising
      • RETROGRADE URETHROGRAPHY must be done BEFORE cathetarization or surgery
        • PUI surgery can be delayed (vs AUI cannot)
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  • Peyronie Disease
    • Usually resolves over 1-2years
    • If active/progressive β‡’ NSAIDs (for pain) + Pentoxifylline (for fibrosis) + Injection of collagenase
    • If Refractory β‡’ SURGEYR
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HEART & SHIT

  • Patient with Valvular Heart Disease undergoing surgery management?
    • Show Pic
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      What are the low vs intermediate vs high-risk surgeries?
      • low-risk β†’ cataract
      • intermediate-risk β†’ GI surgery WITHOUT resection
      • high-risk β†’ transplant surgery
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  • Surgery Indication of chronic severe MR
    • Primary MR valve REPAIR (> prosthetic valve replacement)
      • Symptomatic
      • LV dilation or LVEF ≀ 60% (regardless of symptoms)
      • NOTE 1β†’ MR patients usually have high LVEF as regurgitation causes increased SV, this is why ≀60% is early indicator of LV dysfunction.
        NOTE 2 β†’ Patients with severe MR with EF >60% should be considered for repair even if asymptomatic due to expected LV dysfunction progression
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  • Surgery Indications of severe AS
    • Severe AS = [Aortic jet velocity β‰₯4 m/sec OR Mean Transvalvular pressure gradient β‰₯40mmHg OR valve area ≀ 1 cm]
    • Severe AS + β‰₯1 of the following:
      • Symptomatic
      • LV EF <50% (Regardless of symptoms)
      • Undergoing another cardiac surgery
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  • Pregnancy Contraindications [Should be ttt first prior to pregnancy]
      1. Symptomatic MS
      1. Symptomatic AS
      1. Symptomatic HF LVEF <30%
      1. Pul HTN
      1. Bicuspid Aortic valve with Ascending Aorta enlargement >50mm
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Aortic Regurg Murmur Site:
  • Valvular AR β†’ LSB
  • Root dilation AR β†’ RSB
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Prosthetic Valve Dysfunction:
  • Types:
    • If Mechanical valve β†’ most common is Paravalvular Leak
    • If Bioprosthetic valve β†’ most common is Transvalvular Regurgitation (especially TAVI)
    • Pannus Valve Obstruction
    • Valve Thrombosis (more common in mechanical β†’ stenosis)
  • Features β†’ New onset murmur OR HF symptoms OR MAHA OR Systemic thromboembolism (last 2 β†’ mechanical)
  • Initial management β‡’ ECHO
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  • Aortic Dissection Management
    • Management
      notion image
    • Type?
      • Type A β†’ Ascending Aorta involved β‡’ EMERGENCY, refer to surgery NOW
      • Type B β†’ Not.
    • ttt?
      • Pain control
      • BB (fast acting β†’ esmolol)
        • If SBP > 120 after BB β‡’ Na Nitroprusside
      Tuner Syndrome + chest pain that radiates to the back + HTN
      Aortic Dissection (due to presence of bicuspid aortic valve & co-Arc)
      Complications β†’ spread to mesenteric artery β†’ severe abdominal pain (with low tenderness) + high amylase
      Dx β†’ CT Angio
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  • Blunt Aortic Injury
    • Fall > 10 ft (3m) followed by rapid deceleration β†’ BTAI
      • EMERGENCY CXR β†’ Widening of mediastinum, Left-sided effusion(can present as decerased breath sounds), change in aortic contour
      • Dx β†’ CT angio if stable; TEE if unstable
    • Incomplete tear β†’ patient is stable & normotensive/hypertensive
      • Can cause false lumen (similar to AD)
      • Can cause a flap obstruction (pseudocoarctation) β†’ UL hypertension with LL hypotension/absent pulse
      • Expansion to surrounding structures β†’ RLN (hoarseness)
    • Complete tear β†’ Sudden death
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  • Fluoroquinolones are relatively contraindicated in patients with Aortic Aneurysms, or its risk factors (Marfan - ED Syndrome - Severe atherosclerosis - uncontrolled HTN)
    • Adverse Effects β†’ Achillis Tendon Rupture - Retinal detachment - Aortic Aneurysm Rupture
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Post-MI Complications
  1. Free Wall Rupture
      • Most common ~5 days post-MI, up to 2 weeks.
      • Most commonly affects LV (LAD occlusion) β†’ rupture β†’ Cardiac Tamponade (Beck’s Triad)
      • Risk increases with delayed reperfusion or no reperfusion (via cath)
      • ECG shows β†’ PEA (pulseless electrical activity) with a junctional rhythm (potentially perfusing rhythm)
      • Dx β†’ ECG
      • Management β†’ Rapid Pericardiocentesis & surgical repair
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  • Patient had an MI + developed arrest + got defibrillated + got amiodarone injection. Then LFTs > 1000. What is cause?
    • Answer
      Hepatic Ischemia cause necrosis of Zone III hepatocytes β†’ > 1000 LFTs
      Amiodarone causes cholestasis (increased bilirubin) NOT Acute Liver Failure.
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Post-CABG Wound Dehiscence
  • Soft tissue dehiscence β†’ only superficial tissue is seperated (ms, skin) β†’ no signs of sternal instability
    • ttt β†’ local care & debridement + primary closure
  • Sternal dehiscence β†’ sternal instability & nonunion, characterized by clicking or rocking of the sternum on palpation.
    • EMERGENCY β†’ Sternal Rewiring
ANY PATIENT WITH STERNAL WOUND DRAINAGE SHOULD BE EVALUATED WITH CHEST & STERNAL IMAGING (CT) TO EXCLUDE MEDIASTINITIS
  • ttt β†’ emergency debridement, culture, and IV abx
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Infective Endocarditis (IE)
  • Most common cause of death is Heart Failure, so it is an indication of urgent surgical intervention.
    • IE diagnosed β†’ severe MR, causing HF (Acute PE & LL edema)
        1. Blood Culture & empirical abx
        1. O2
        1. Surgical Consultation
    • Other indications of surgical consultation are:
      • (local damage) HF
      • (systemic damage) localized extension of infection β†’ abscess, fistula, HB
      • difficult to treat organisms (multi-drug resistant - fungal)
      • very high risk of embolism (>1cm vegetation - persistent embolization despite abx)
    • Prophylaxis:
      • To patients with prosthetic/mech valve, px IEC, or CHD (residual or unrepaired)
      • Dental or Gingival manipulation (Amoxicillin)
      • Resp mucosa incision (tonsillectomy or bronchoscopy w biopsy) β‡’ Amoxicillin
      • Skin or Muscle Surgery in infected area (Cellulitis or Abscess) β‡’ Vanocomycin
      • GI or GU procedure in infected area (UTI instrumentation or Diverticulitis) β‡’ Ampicillin
    • NO NEED FOR PROPHYLAXIS FOR:
      • Colonoscopy/Endoscopy
      • Vaginal/CS
      • Dental X-ray, fillings, orthodontics
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While doing noncardiac surgery in a patient with HOCM, maintaining the preload (iv hydration) is essential.
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Malignant pleural effusions are drained via pericardiocentesis, however the accumulate rapidly, so the insertion of a percardial window or prolonged pericardial catheter drainage
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VASCULAR & SHIT

  • Lower Extremity Proximal DVT
    • Risk Factors β†’ Px DVT, Cancer, Immobilization (>3 days), Drug injection, Obesity, pregnancy, COC/HRT
      • Drug injection (in femoral artery) can cause iliofemoral DVT
    • Features β†’ Swollen Leg, Calf>3cm, pitting edema, collateral veins, Localized tenderness along vein distribution
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    • Management?
      • Show Pic
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  • Upper Extremity DVT
    • Risk Factors
        1. peripherally inserted CVC (eg. patient taking chemo + has erythema, swelling, no discharge) [to exclude infection]
        1. weightlifting β†’ scalene/subclavius muscle hypertrophy
        1. repetitive arms motion β†’ injury to the axillosubclavian vein
        1. Malignancy
        1. Thoracic Outlet Syndrome (Cervical Rib) β†’ injury to the axillosubclavian vein
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    • Manifestations β†’ hours after motion: arm swelling, pain, erythema, warmth, and heaviness
      • Nearby superficial veins dilate (as they act as collaterals)
    • Pain
      • Improves with rest & elevation to heart level
      • Worsens with activity & elevation above the head
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    • Dx β†’ Doppler or Duplex
    • ttt β†’ 3m of anticoagulant therapy or thrombolysis
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Leriche Syndrome
  • Triad of Bilateral hip, gluteal, and thigh claudications - ED - absent/diminished femoral pulses
    • ED (either due to aortoiliac or internal iliac or internal peudendal artery occlusion) warrants a warning of substantial risk of CAD. ED usually precedes symptomatic CAD by 3-5 years.
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Femoral Artery Aneurysm
  • Pulsatile mass in the groin are β€œunder the inguinal ligament” that causes anterior thigh pain
    • Pain is due to compression of nerve
    • Usually associated with AAA
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Local Vascular Complications of Cardiac Cath
  1. AVF β†’ continuous bruit with NO mass
    1. ttt: small (observation/US-guided compression); large (surgical repair)
  1. Pseudoaneurysm β†’ pulsatile mass with systolic bruit
  1. Hematoma β†’ No bruit +/- mass
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ENT & SHIT

Ludwig Angina
  • Cellulitis of submandibular & sublingual spaces β†’ tender & edematous mouth floor β†’ β€˜hard’ & displaced tongue posteriorly β‡’ ACUTE AIRWAY OBSTRUCTION
  • associated features β†’ woody/brawny neck with no lymphadenopathy
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Acute Suppurative Parotitis
  • Elderly with decreased fluid intake & NPO (pre-op) presenting with severe parotid swelling (pre-auricular tenderness & swelling) + pain on jaw movement +/- radiation to ipsilateral half of face.
  • Can be due to dehydration/decreased oral hygiene (dementia patients) or stone or neoplasm
  • Dx β†’ clinically + followed by CT to exclude stone/neoplasm
  • ttt β†’ abx, hydration, sialagogues, massage
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Nasal Trauma
  • Any patient with nasal trauma should be evaluated for a septal hematoma (soft swelling; vs hard β†’ deviated septum)
    • Complications of nontreated hematoma β†’ Infection (abscess) & avascular necrosis (septal perforation)
    • ttt β†’ immediate drainage β†’ anterior packing β†’ ice + NSAIDs + abx & reevaluation later
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Septal Perforation
  • Whistling sound post-rhinoplasty is buzzy for septal perforation from a septal hematoma
  • Other causes:
    • Cocaine use
    • Syphilis - TB - Sarcoidosis
    • Nose Picking - Wegner’s
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NEURO & SHIT

CSF Rhinorrhea
  • Diagnostic β†’ CSF-specific proteins (B-2transferrin, B-trace protein)
  • To find exact site β†’ Imaging (with intrathecal contrast) or Endoscopy (with intrathecal fluorescein dye)
  • Management β†’ Inpatient observation (bed rest - head elevation - frequent neuro exams)
    • Complication β†’ Meningitis
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40F + stroke + 170 BP + 5mm pupils reactive + CT scan shows thalamic Hge. Etiology?
  • Cocaine.
  • Strokes are classically β‰₯ 60 years & with hx of chronic HTN
  • Sympathetic activation β†’ mydriasis, HTN, tachycardia hints to cocaine use
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  • Meningioma
    • Risk Factors
      • Ionizing Radiation, Old Age, Female, Genes (NF2)
        • Radiation has a latency period of >20 years
    • Management:
      • Small (<2cm) & asymptomatic β‡’ Observation/Serial Imaging
      • Large or Symptomatic or associated brain edema β‡’ Surgery
      • Unresectable or Comorbidities β‡’ Radiation
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Spinal Epidural Abscess (SEA)
  • buzzy keyword is = fluid collection with peripheral enhancement on MRI
  • Classic presentation β†’ fever (not always ~50%), focal back pain, neuro findings
  • EMERGENCY β†’ IV abx & emergency laminectomy & decompression (<24hr of onset of neurologial deficit)
    • if delayed = permanent deficits
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Central Cord Syndrome
  • Rear-ended MVA β†’ weakness/decreases sensation in UL > LL.
  • management:
      1. Cervical X-Ray β‡’ Normal/Cervical Spondylosis
      1. Cervical Myelogram is Diagnostic
  • ttt β†’ steroids and/or surgery
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VHL patient
  • screen for associated symptoms:
    • RCC β†’ abdominal MRI
    • Pheochromocytoma β†’ metanephrines
    • Cerebellar hemangioblastomas β†’ MRI brain
    • Retinal hemangioblastoma β†’ eye/retinal exam
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Cerebellar Hemorrhage
  • Caused by HTN, Aspirin,
  • Surgical Decompression IF:
      1. Signs of Neurological Deterioration (lethargy, obtunded, coma)
      1. Radiological Evidence (β‰₯3 cm, BS compression, Obstructive Hydrocephalus)
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Brain Herniation:
  • Subfalcine β†’ NO cranial nerve affection/Resp Centers/Coma.
    • Symptoms as LL weakness that can progress to bilateral as ACA is compressed
  • Uncal β†’ Signs of BS compression (irregular resp, unconsciousness) + IPSILATERAL FIXED DILATED PUPIL
  • Tonsillar β†’ Signs of BS compression (irregular resp, unconsciousness) + FIXED MIDPOSITION PUPILS
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RENAL & SHIT

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RCC
  • Classic triad is hematuria (IDA), flank pain, and palpable abdominal mass in a smoker (triad present in <10% of patients)
  • So, >1 of these warrants an investigation
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Bladder Cancer
  • Smoker (or other risk factor) + hematuria.
  • First β†’ Urinalysis to determine hematuria THEN
  • Dx β†’ Flexible Cystoscopy with biopsy (GS) or urine cytology
  • Staging β†’ TURBT + Upper UT imaging (IVP, MRI, CT)
  • ttt:
    • No muscle invasion β‡’ TURBT & intravesical immunotherapy
    • Muscle invasion β‡’ radical cystectomy + systemic chemo (Muscle invasion usually means tumor has invaded walls)
    • Metastatic β‡’ Systemic Chemo + Immunotherapy
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MSK & SHIT

Patellar Tendon Rupture VS Quadriceps Tendon Rupture
  • Patellar Tendon Rupture β‡’ Patella rides high
  • Quadriceps Tendon Rupture β‡’ Patella rides low
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Best next step after immediate reduction of a dislocation? β‡’ vascular Examination (ABI or duplex) as pulse detection is of limited accuracy
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Rotator cuff tear VS Rotator cuff impingement/tendinopathy
  • Rotator cuff tear
    • Tear β†’ pain/limited range of motion with abduction, external rotation, and raising arms overhead
    • WAEKNESS is present + drop arm sign
    • Usually after a fall on outstretched hand
    • Dx:
      • Initially β†’ Shoulder X-Ray to exclude fractures
      • Diagnostic β†’ MRI of the shoulder
    • ttt β†’ surgery within 6 weeks
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  • Rotator cuff impingement/tendinopathy
    • Same as tear BUT NO weakness
    • Subacromial tenderness is present with normal range of motion
    • positive impingement tests
Adhesive Capsulitis
  • In patients in DM or Hypothyroidism
  • Loss of PASSIVE & ACTIVE ROM (vs arthropathy β†’ loss of active only)
  • Pain & weakness β†’ disuse atrophy & loss of swing
    • ttt β†’ ROM exercises. NO IMAGING NEEDED.
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Foor Infections
  • Deeper Infections should be suspected if?
    • Answer
      1. Long Standing wound >1-2 weeks
      1. Large Ulcer Size β‰₯ 2cm
      1. Systemic Symptoms (Fever, Chills)
      1. Elevated ESR
      1. Palpation/Presence of Bone at ulcer base
  • Infections are usually β†’ Polymicrobial + can cause OM via contagious spread
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Iliotibial Band Syndrome β†’ Lateral knee pain + tenderness over lateral femoral epicondyle (proximal to Lateral Joint line)
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Chronic Osteomyelitis
  • Very common after high velocity tibial fractures
  • Presentation β†’ patient had a RTA fracture β†’ fixation therapy β†’ acute OM presentation (recurrent fevers) that are inadequately treated β†’ chronic osteomyelitis (presentation is nonunion + fragmentation of the bone + irregular fracture line)
    • Risk Factors of malunion (DM - Impaired blood supply [smoking, atherosclerosis] - corticosteroids - infection [OM])
  • SINUS TRACT is buzzy for chronic OM
  • ttt β†’ open surgical debridement & biopsy
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Avascular Necrosis
  • Rest pain + pain on weight bearing + aggravated by forced abduction & internal rotation
  • Pain site β†’ groin is a big one, thigh, or buttocks
  • Skin & labs are negatives for any finding
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Scoliosis
  • Often presents in children age > 10 due to rapid growth
  • Defined as Cobb’s angle > 10 degrees
  • Foreward ben test shows asymmetry
  • 1st step β†’ XRAY to measure cobb’s angle
    • 10-30 degrees β†’ follow-up in 6 months
    • 30-40 in a childβ†’ brace
    • 40-50+ β†’ surgery
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Cervical Radiculopathy
  • Pain increases with ipsilateral neck flexion & Improves with shoulder abduction
  • These signs are specific.
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Shoulder Dislocation
  • Greatest risk β†’ recurrence
  • Avascular necrosis is NOT common in isolated shoulder dislocation, it is associated however with proximal humerus fracture.
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Buckle Fracture
  • FOOSH <10 years β†’ buckle fracture in distal radius
  • Dx is xray seeing 0)
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Compartment Syndrome
  • Causes β†’ crush injury, long bone fracture, rhabdomyolysis, reperfusion, massive fluid resuscitation
    • Presentation or pressure can be normal at first, but as the patient get resuscitated β†’ reperfusion, the syndrome can present
  • C/P
    • Early β†’ progressive pain that increases rapidly + painwith stretchinh
    • Late β†’ decreased sensation + weakness that turns into paralysis +/- loss of pulse (rare)
  • Dx β†’ Delta pressure (diastolic pressure - compartment pressure) ≀ 30 confirms the dx
  • ttt β†’ Emergency Fasciotomy
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Osteosarcoma
  • Lytic lesions with concentric layers (Sunburst & Coddman)
  • Hx of TP53 (Li fraumeni Syndrome) & RB1 (Retinoblastoma)
  • Occurs in older adults with hx of paget & radiation
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Gout Bursitis
  • Acute β†’ Inflammation & Pain
  • Chronic β†’ No pain & inflammation
  • Tophus β†’ cortical bone erosions with overhanging edges
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THE USE OF SUCCHINYLCHOLINE IN A PATIENT AT RISK OF RHABDOMYOLYSIS β†’ CARDIAC ARREST
  • Rhabdo β†’ hyperkalemia
  • succinylcholine (depol NM blocker) β†’ hyperkalemia
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Osteoarthritis
  • management:
      1. Weight loss
      1. Regular moderate activity & NSAIDs
      1. Exercise program to strengthen the Quads
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Care of amputated digit:
  • Saline irrigation of gross debris β†’ wrapped in sterile saline-moistened gauze in a sealed plastic bag β†’ bag is immersed in cool ice water (0 degrees C)
    • This decreases metabolism & O2 demand β†’ decreases risk of ischemia
    • Direct ice contact increases risk of frostbite
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Old patient + Fall + examination shows short LL + externally rotated. What is DD?
Answer
  1. Femoral Neck Fracture (more common) β‡’ presents with no echymosis and has higher risk of avascular necrosis
    1. This is a intracapsular fracture (femoral head and neck)
    2. Extracapsular (sub/intertrochanteric) β‡’ Presents with echymosis
    3. Both require surgical ttt within 48 hours in stable patients
  1. Anterior hip dislocation (vs Posterior hip dislocation: internally rotated)
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NUTRITION & SHIT

Zinc Deficiency
  • Diarrhea, Peri-oral pustular rash, Alopecia
  • Hypogonadism
  • Impaired wound healing, Impaired taste, Immune dysfunction
  • Risk Factor β‡’ Malabsorptive disease (Celiac - CD), TPN, diarrhea, gastric bypass, bowel resection.

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Copper Deficiency
  • Hair Loss/Brittle Hair
  • Skin Depigmentation
  • Anemia
  • Osteoporosis
  • Neurological Dysfunction (Peripheal Neuropathy β‡’ ATAXIA, ROMBERG POSITIVE, LOSS OF VIBRATION)
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Young patient + osteoporosis, think AN

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ENDOCRINE

THYROID GLAND
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Approach to a thyroid nodule:
  • Cancer Risk Factors should be assessed
  • Examination β†’ Size, Mobility, Firmness, and L.Ns
  • Serum TSH
    • If normal β†’ US
      • If > 2cm β†’ FNA (unless cystic)
      • If > 1cm β†’ Look for high-risk features (Microcalcifications, Irregular margins, internal vascularity) β‡’ FNA
    • If decreased β†’ Radionuclide Scans
Pregnant Women SHOULD NOT receive radioactive iodine, however, FNA is safe.
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Thyroglobulin (Tg) as a tumor maker:
  • Patient underwent thyroidectomy + radioactive iodine treatment + has been taking levothyroxine started having new increase in Tg (thyroglobulin) levels.
    • This is a sign of cancer recurrence
      • Explanation
        Tg is produced by thyroid tissue (gland/cancer) β†’ this patient has no thyroid β†’ so new increase in Tg β‡’ recurrence of cancer.
    • Patient is taking levothyroxine for 2 reasons:
        1. Replace thyroid gland function
        1. negative feedback on pituitary to decrease TSH β†’ decrease stimulation of thyroid tissue growth/cancer recurrence
    • How to test for recurrence?
      • Stop Levothyroxine or give TSH β†’ decrease negative feedback β†’ increase in TSH β†’ increase Tg
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Papillary Thyroid Carcinoma
  • Primary ttt is β†’ surgical resection
    • If small (<2cm) & no evidence of nodal involvement or contralateral thyroid abnormalities β‡’ partial/lobectomy
    • If larger β‡’ Total thyroidectomy
    • If nodal involvement or extrathyroidal invasion β‡’ Lymph nodal dissection (regional/central compartment)
  • AFTER SURGERY β†’ Levothyroxine is given + radioiodine ablation is used in patients with high risk of recurrence (Large - invasion - metastasis - incomplete resection)
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STRESS HYPERGLYCEMIA
  • Usually seen in patients with burns, sepsis, trauma/hge
  • no ttt indicated, unless glucose (>180-200) then short-acting insulin is administed to maintain glucose in slight hyperglycemia
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Primary Hyperparathyroidism
  • High Serum Calcium, Low Serum Phosphate, High PTH, High urinary calcium
  • Next Step after dx β‡’ Parathyroid Imaging & Parathyroidectomy (of PTH adenoma)
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BREAST

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Breast Cyst Management:
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Simple Cyst β†’ thin-walled, fluid filled cyst
Complex Cyst β†’ thick-walled, solid components
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NOTE β†’ US is the preferred imaging modality in women <30 years of age.
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Fat necrosis of the breast
  • Common after breast surgery & trauma (seat belt)
  • Can mimic breast cancer β†’ dimpling & skin retraction + fixed irregular mass + calcification of mammogram
  • US β†’ hyperechoic mass (correlates with benign etiology)
  • Biopsy β†’ fat cells and foamy histiocytes
  • ttt β†’ excision then reassure & routine follow-up
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Pruritic Rash on breast that slowly spread + Edematous breast + Erythematous + enlarged nontender axillary lymph nodes
  • Dx β†’ IBC
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PEDS NECK MASSES

  1. Midline?
      • Moves with tongue β†’ Thyroglossal Cyst
      • DOESN’T move with tongue β†’ Dermoid Cyst
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  1. Lateral?
      • Single mass anterior to SCM β†’ Branchial Cleft Cyst [ttt β†’ resection]
      • Multiple & Tender β†’ Reactive Adenopathy
      • Necrotic/Violaceous Discoloration β†’ M.avium lymphadenitis
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  1. Posterior?
      • Cystic Hygroma
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POST-OP COMPLICATIONS

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Post-op fever timeline:
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Immediate
  • Tissue trauma β†’ observe & symptomatic ttt
    • Fever & Leukocytosis last < 3 days.
  • MH β†’ Dantrolene & cooling.
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Post-op decreased lung volumes & small areas of atelectasis (subsegmental thickening bilaterally) ARE NORMAL POST-OP FINDINGS
Post-op atelectasis due to mucus plugging is common.
  • Causes hypoxia (decreased pO2) and increased RR (decreased pCO2)
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Post-op ileus
  • Causes: Complications (ureteric injury), increased surgery duration, increased bowel manipulation (laparotomy)
  • Ileus > 72 hrs post-op β†’ AXR shows uniformly dilated bowels + decreased sounds + abdominal pain & vomiting
    • Vomiting results in hypokalemic hypochloremic metabolic alkalosis
    • ttt β†’ bowel rest & serial examinations
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OPHTHALMOLOGY

Acute Angle-Closure Glaucoma
  • Dx confirmed with β†’ gonioscopy (to visualize angle) & tonometry (to measure IOP)
  • ttt β†’ topical & systemic IOP lowering drugs
    • Later β†’ Laser iridotomy
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Open Globe Injury
  • Large β‡’ Extrusion of Vitreous
  • Small & No FB visualized β‡’ Eccentric/Peaked/Teardrop pupil (fixed)
  • Management β†’ Eye Shield + Ophthalmologic consultation
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Orbital Compartment Syndrome
  • β€œRock hard induration of eyelids” + RAPD + vision loss following trauma.
  • Emergency Orbital Decompression MUST be done before imaging or any other intervention
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Sympathetic Ophthalmia
  • If injury is severe β†’ enucleation of they eye to pevent sympathetic ophthalmia
  • if some recovery is expected β†’ follow-up; if condition develops β†’ steroids & biologics
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Cataract
  • Usually > 60 years of age.
  • Can present in younger patients with: DM, trauma, steroids use, external radiation, HIV infection
  • ttt β†’ Laser remval
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Hyphema
  • Associated with anisocoria & sluggish pupillay reflex
  • Management:
      1. Opthalmology Consultation:
        1. Monitor IOP DAILY (to prevent glaucoma, as it causes permenant vision loss)
        2. Cycloplegic & Glucocorticoid eye drops (To prevent rebleeding, as it causes worse outcomes)
      1. Eye Shield
      1. Bed Rest (with elevated head)
  • Small Hyphemas self-resolve in days
  • Large/Clotted/Persistent Hyphemas OR non-responsive Glaucoma β‡’ SURGERY

HERNIA

Direct Inguinal Hernia surgery can be postponed if the patient is asymptomatic (increase in size is asymptomatic)
  • Delaying surgery DOESN’T increase risk of complications
  • Most patients will require surgery within the next 10 years
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Femoral Hernias are at a much higher risk of strangulation and incarceration , so surgery is preferred
  • note that femoral hernia are NON-PULSATILE MASSES
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