Day 4 PM Flashcards
7 purposes of the ISE
1.Image important anatomic swallowing structures 2.Ax movement patterns of these structures 3.Identify & describe any airway compromise (asp / pen) 4.Evaluate impact compensatory maneuvers 5.Identify & describe any pooled secretions & ability to clear 6.Complete cursory evaluation of esophageal A & P 7.Assist in forming clinical recommendations
2 most important characteristics of swallowing to consider during an ISE. Implications?
safety and efficiency. Safety prevents aspiration. Efficiency prevents excess residue that leads to malnutrition
When is the ISE indicated?
With some patients due to radiation exposure (also expensive, time, realism)
6 types of ISE’s
• Modified Barium Swallow (MBS) • Upper gastrointestinal series with hypopharynx • Videofluoroscopic swallow study (VFSS) • Videofluoroscopic swallow examination (VFSE) • Videofluoroscopic barium examination (VFBE) • Rehabilitation swallow study
7 objectives of VFSE
1.Evaluate anatomy & physiology of the swallowing mechanism 2.Evaluate swallow physiology 3.I.D. patterns of impaired swallow physiology 4.I.D. consequences of impaired swallow physiology 5.Evaluate the impact of compensations 6.Confirm pt symptoms 7.Make predictions
4 VFSE procedures
• Rec. to use standardized protocols • Position pt upright w adequate support • Typically begin in lateral position, then turned for A-P view • Esophageal Sweep
Why is A-P view important? Clinical implications for certain demographic?
Anterior-posterior view tells us so you can see both sides of everything- important for stroke patients. Can turn head to weak side (helps with efficiency of swallow)
Importance of Obamacare
Demand to increase productivity
One way to do this is to standardize practice for repeated procedures (dysphagia screening, MBS)
Across different SLP’s and within your own practice
Ways to standardize your practice
Equipment kept in same place
Disinfected in exact same way and steps
Same form and steps followed for screens
MBS tray set up the same every time
Benefits of standardizing your practice
Reduces costs, eliminates wastes, improves efficiency (SWIGERT)
Name of ISE done standing up
C-ARM
When evaluating the image, it is important to remember that the view is _____.
mirrored/inverted
2 types of common contrasts used in ISE
• Barium Sulfate Suspension (radiopaque) • Varibar - standardized barium line specific for swallow studies
3 things to vary (have a range of)
textures, volumes, viscosities
Volumes typical range
1 mL to 90 mL
3 viscosity categories of liquids
thin, nectar thick, honey thick
3 viscosity categories of solids
puree, mechanical soft, hard, mixed (like cereal)
6 structures seen in a MBS
lingua-velar seal, bolus, pharynx, hyoid, larynx, true vocal folds
3 non-contrasted tasks, their function
Simple speech task to evaluate structures in movement (lips,
tongue, velum, pharyngeal wall)
• Vowel Prolongation & repetition to evaluate laryngeal
excursion & VF adduction
• Falsetto |i| in A-P view affords good visualization of pharyngeal
wall constriction
_______ Can be different across settings & clinicians opinions vary
sequence of events
3 Martin-Harris suggestions for sequence of events
1) . Start with Thins: 5ml; 10ml; 20ml* •
2) . Then: Pudding; Soft; Regular; Mixed •
3) . If signs aspiration immediately downgrade to thicker viscosity
_________ beneficial but practice flexibility to maximize ________.
Standard protocol, diagnostic outcomes
8 steps in the general sequence of events of an ISE
1.Pt seated in lateral view
2.Simple speech tasks to Ax movement of structures
3.Liquid bolus presentations
4.Solid bolus presentations *
5.Pt turned to A-P view, vowel & falsetto tasks
6.Further swallow trials. Ax symmetry & effects of head turn
7.*Ax impact of compensatory maneuvers either before /
after AP view
8.When feasible, pt stands & cursory esophageal phase Ax eval
4 things to look for in an ISE
1) . Anatomy of All Structures
2) . Non-Swallow Movement: Lips, tongue, mandible, Larynx, Pharynx
3) . Kinematics, Timing, Airway Protection, Swallow Efficiency
4) . Impact of Strategies and Swallow Maneuvers
Bailout/study abortion criteria
usually 3rd episode of aspiration
Structural abnormalities
1) . No bar
2) . Non-obstructing CP bar, normal PES opening >0.60 cm
3) . Moderately obstructing CP bar, PES opening 0.3-0.6 cm
4) . Severely obstructing CP bar- PES opening
4 strengths of ISE
• Dynamic study of swallow biomechanics • Unlimited review capabilities • Comprehensive perspective from lips - esophagus • Readily accessible (inpt)
4 weaknesses of ISE
Time restraints due to radiation exposure • Sampled in artificial eating environment • Pooled secretions not captured • Limited access outside hosp
2 terms: endoscopic evaluation of swallowing
Fiberoptic Endoscopic Evaluation of Swallowing (FEES) & Fiberoptic Endoscopic Evaluation of Swallowing w Sensory Testing
(FEESST)
MBS vs. FEES: Similarities
• Purpose • Process of Evaluation
MBS vs. FEES: Differences
• Technique • Image Perspective • Portability • Repeatability • Duration of Exam • Sensory Assessment
5 FEES components
- Ax of pharyngeal & laryngeal anatomy 2.Eval of movement & sensation of pharyngeal structures
- Ax of secretions
- Direct Eval of swallowing Fn w oral trials 5.Eval of impact of compensatory maneuvers
4 parts of the FEES equipment
• Fiberoptic Endoscope • Light Source • Camera • Video Recorder
6 general procedures oFEES
1.Scope Passed
2.View Velopharyngeal Mechanism (hum, V, C, saliva swallow)
3.Advance to Oropharynx to visualize laryngeal & pharyngeal sts
4.Ask pt to perform non-swallow tasks to Ax anatomic
movement & function of laryngeal & pharyngeal structures
5.Perform Oral trials
6.If impaired swallow ID: Ax effect of compensatory techniques
6 things to look for during FEES
Anatomic integrity at each “level” of swallowing mechanism Movement characteristics Secretions Ax of swallow attempts Airway compromise Impact of maneuvers & compensations
5 strengths of FEES
• Objective study of swallow
physiology w unlimited review capabilities
• Superior inspection of pharyngeal
anatomy, sensations, secretions & laryngeal closure patterns then MBS
• Accessibility • No radiation exposure • No time constraints
5 weaknesses of FEES
No view of the oral cavity & esophagus • Assessment restricted to pharyngeal phase of swallow • ‘Whiteout’ during swallow • Potential med complications • Reqs further SLP training
High level of agreement between MBS and FEES for detecting what 4 things? percent of agreement?
• Aspiration (86-90%) • Pharyngeal Residue (80-89%) • Laryngeal penetration (85-86%) • Premature spillage (61-66%)*