Thoracic Flashcards Preview

SCORE+DECKER UAMS > Thoracic > Flashcards

Flashcards in Thoracic Deck (26):
1

Presents with dyspnea, persistent cough w/o purulent sputum, facial fullness and neck pain. Progresses to hoarseness, dysphagia, chest pain, and syncope. Veins of the arms and neck are dilated. What syndrome are you suspecting?

Superior Vena Cava Syndrome

2

Imaging for SVCS: initial, best

Initial: CXR - can reveal upper lobe opacity on symptomatic side

Best: CT w/ contrast - shows mass effect from primary or metastatic cancer or IV thrombus. Sets up for percutaneous biopsy. 

The role of MRI: no visual advantages and more expensive, use if allergic to contrast dye or venous access cannot be obtained. 

3

Indications for tube thoracostomy

  • PTX
  • HTX
  • Effusion
  • Chemical pleurodesis 

4

In patients with pleural adhesions from infection, previous surgery, or past pleurodesis, what should be considered in placement of chest tubes?

CT or US guidance 

5

In patient w/ pleural effusion, what are the indications for diagnostic versus therapeutic thoracentesis?

  • Diagnostic thoracentesis: establish the nature of the effusion (ie, transudate, exudate) and identify potential causes (eg, malignancy, infection).
  • Therapeutic thoracentesis: relieve symptoms of new-onset dyspnea due to a moderate to large pleural effusion (indication for large-volume thoracentesis).

6

Relative contraindications to chest tube placement include...

anticoagulation or bleeding diathesis

7

Relative contraindications for thoracentesis are...

  • anticoagulation
  • bleeding diathesis
  • very small effusion
  • active skin infection (risk of empyema)
  • positive-pressure MV (risk of pneumothorax)

8

Given a patient who requires chest tube insertion, be able to idenfy and prepare all instruments required to perform the procedure

  • Local anesthetic w/ needles/syringes (25 gauge, 18-21 gauge)
  • Scalpel, kelly clamps
  • Chest tube, drainage system
  • Needle driver, heavy suture, straight scissors
  • Petroleum gauze, drain sponges occlusive dressing/elastic tape
  • PPE, sterile drapes, gown, and gloves
  • Chlorhexidine/povidone-iodine

9

Risks of tube thoracostomy

intercostal vessel bleeding, persistent pleural effusion, pneumothorax, and infection

10

In the elderly patient, what anatomy should be considered that can increase the bleeding risk in tube thoracostomy? What can be done to mitigate this risk?

  • Be mindful of intercostal arteries with tortuous course (plan for puncture site lateral to the spine) and collateral arteries that can traverse through the intercostal space
  • Use of color Doppler to identify these vessels should be considered before performing the procedure

11

Be able to accurately describe the anatomic landmarks for the optimal site of chest tube insertion without assistance.

The incision should be made at the fourth to fifth intercostal space (to avoid diaphragmatic injury)—in the anterior or midaxillary line between anterior and posterior axillary folds (pectoralis major and latissimus dorsi).

  • In males, this corresponds to the level of the nipple. 
  • In females, this corresponds to the inframammary crease.

12

Should ultrasound not be available, in patients with a nonloculated, free-flowing effusion, the puncture site is chosen according to the following landmarks after positioning the patient... 

  • Sitting upright, resting arms on a bedside table
  • One to two interspaces below the level at which breath sounds decrease and/or percussion becomes dull
  • Above the ninth rib, to avoid subdiaphragmatic puncture
  • Midway between the spine and the posterior axillary line 

13

Indications for immediate thoracotomy after chest tube insertion include greater than what volume drained?

  • 1500 mL of blood drained initially
  • more than 300 mL/h x3 hrs

14

Other than immediate/ongoing bleeding, what are some indications for thoracotomy s/p thoracostomy tube?

  • Massive air leak with associated pneumothorax 
  • Drainage of esophageal or gastric contents from the chest tube

15

A general guideline is to stop fluid removal when chest discomfort ensues or when the total amount of fluid removed reaches... 

1000 to 1500 mL - re-expansion pulmonary edema

16

When is CXR indicated after thoracentesis?

  • not routine
  • air aspirated
  • multiple needle passes
  • pneumothorax

17

In evaluating a patient with a tube thoracostomy in place, what clinical findings would be of concern and warrant further workup?

  • persistent voluminous bloody output
  • hemodynamic instability
  • persistent air leak

18

What are risk factors for primary pneumothorax?

increased height, youth, male sex, and tobacco/cannabis use, often associated with apical subpleural blebs on imaging

19

What are some secondary pneumothorax causes?

  • COPD
  • asthma
  • bullous disease
  • cystic fibrosis
  • infection/PNA
  • congenital cysts
  • IPF
  • PE
  • malignancy
  • thoracic endometriosis

20

Do all cases of secondary PTX require admission?

Secondary pneumothorax is associated with greater symptomology, morbidity, and cardiorespiratory compromise as a result of underlying lung disease. As such, the American College of Chest Physicians (ACCP) and the British Thoracic Society guidelines recommend admission for all episodes of secondary pneumothorax.

21

What are some signs and symptoms of tension PTX?

  • most common: chest pain, dyspnea
  • anxiousness 
  • increased work of breathing
  • tachycardia
  • hypotension
  • tracheal deviation (away from affected lung)
  • JVD

22

Decreased breath sounds, hypoxia, tachycardia, increased work of breathing, JVD, tracheal deviation, hyperresonance are signs of what?

tension pneumothorax

23

Define pneumothorax

Accumulated air in the pleural space

24

Be able to give indications for surgery in the setting of pneumothorax.

  • persistent leak after 4 days
  • failure to expand after adequate chest tube
  • recurrence
  • high-risk profession (pilot, scuba diver)
  • limited access d/t geography/social

25

What is the standard approach for an operation for pneumothorax?

What should be done intraoperatively?

video-assisted thoracoscopy

resect blebs if found

perform pleurodesis

26