Motility Disorders Flashcards
Jackhammer (nutcracker) Esophagus and Hypertensive LES are classified under THIS esophageal dysmotility disorder?
HYPERcontraction
Ineffective Esophageal Motility is classified under THIS esophageal dysmotility disorder?
HYPOcontraction
Distal (diffuse) Esophageal Spasm is what type of esophageal dysmotility disorder?
Uncoordinated contraction
What is the Deglutitive EGJ Relaxation Window?
10 SECOND window of what occurs at the EGJ, pressure-wise from time of SWALLOW
The LOWEST mean RELAXATION PRESSURE for a 4 SECOND period WITHIN the Deglutative EGJ Relaxation Window is called? and what is considered NORMAL?
IRP (Integrated Relaxation Pressure) < 15 mmHg
anything >15 mmHg is considered IMPAIRED EGJ Relaxation
The VOLUME of the contraction BELOW the transition zone of the esophagus that contains ONLY SMOOTH MUSCLE is called?
Distal Contractile Integral (DCI)
Normal is >450 but < 8,000 mmHg/cm/sec
The point in the swallow curve that SHARPLY BENDS away from the donwslope indicating a TRANSITION from the esophageal PERYSTALTIC CLEARANCE to esophageal EMPTYING?
Contractile Deceleration Point (CDP)
The TIME from the start of a SWALLOW to the contractile deceleration point (CDP) is called what? What is NORMAL?
Distal Latency (DL)
Normal is >4.5 seconds (if its shorter, its a SPASTIC contraction)
If DYSPHAGIA is NOT explained by stenoses or inflammation, CHEST PAIN is not explained by heart diseae or PRIOR to fundoplication procedure to exclude ACHALASIA, this TEST should be done?
High-resolution esophageal manometry
Do esophageal MANOMETRY abnormalities mean that there is actual underlying DISEASE?
NO
SECONDARY ACHALASIA is caused by what two disorders?
CHAGAS disease (trypanosoma cruzi)
MALIGNANCY
Swallowing that fails to induce perystalsis and fails to induce LES relaxation is called?
ACHALASIA
What is COMMON to ALL THREE subtypes of ACHALASIA?
IRP >15 mmHg
ABNORMAL peristalsis
What DISTINGUISHES the THREE subtypes of ACHALASIA?
PRESSURE response in the BODY of the ESOPHAGUS
In this TYPE of ACHALASIA, you see TWO HIGH PRESSURE zones where SWALLOWING FAILS to result in PERISTALSIS and the LES FAILS TO RELAX with SWALLOWING (therefore IRP >15 mmHg)?
CLASSIC TYPE-I ACHALASIA
In this TYPE of ACHALASIA, you see a “TREE TRUNK” appearance where there is SIMULTANEOUS PRESSURIZATION >30 mmHg, of the ENTIRE ESOPHAGUS?
TYPE-II ACHALSIA (most treatable)
In this TYPE of ACHALASIA, >20% of SWALLOWS result in PREMATURE CONTRACTION of the esophagus with DISTAL LATENCY < 4.5 SECONDS?
TYPE-III (SPASTIC ACHALASIA) - hypercontractions with DCI >8,000 worst response to treatment
What MEDICATIONS are used to treat ACHALASIA?
Calcium Channel Blockers & Nitrates (only used when other methods don’t work)
What are the only TWO DEFINITIVE treatments for ACHALASIA?
Pneumatic Dilation (balloons 30-40 mm to TEAR the LES)
Heller Myotomy (or POEM)
What is the most COMMON complication post LES tearing for ACHALASIA (dilation, Heller, POEM)?
GERD
What is the TREATMENT of CHOICE for TYPE-III ACHALASIA?
POEM (can get a longer myotomy than with a HELLER)
WHEN should BOTOX be used to TREAT patients with ACHALASIA?
When PNEUMATIC DILATION, HELLER MYOTOMY of POEM are not options
What is TRUE of ALL treatments for ACHALASIA that patients MUST be informed about?
ALL DETERIORATEover TIME and will eventually need other treatments
Is ACHALASIA curable?
NO
In a patient undergoinf high-resolution esophageal manometry and they are found to have an IRP >15 mmHg AND they have NO PERISTALSIS AT ALL, what’s the diagnosis?
ACHALASIA
In a patient undergoinf high-resolution esophageal manometry and they are found to have an IRP >15 mmHg AND they have ANY PERISTALSIS AT ALL, what’s the diagnosis?
EGJ OUTFLOW OBSTRUCTION
Achalasia VARIANT, EoE, infiltrative CANCER, extrinsic VASCULAR obstruction, HIATAL hernia, OBESITY, OPIOIDS can all result in?
ELEVATED IRP with PRESERVED PERISTALSIS
Does an ELEVATED IRP by itself mean much?
NO (20-40% resolve spontaneously)
SUPINE IRP measurements are HIGHER than those done UPRIGHT, so what does an UPRIGHT IRP distinguish?
IMPORTANT from unimportant EGJ outlet obstruction
UPRIGHT IRP >12 98% EGJ outlet obstruction
IRP > ULN in BOTH SUPINE and UPRIGHT positions, there is SOME PERISTALSIS and >20% of swallows, there is INTRABOLUS PRESSURE?
EGJ Outlet Obstruction
EGJ Outlet Obstruction means what CLINICALLY?
It is INCONCLUSIVE (must distinguish cilinically RELEVANT - symptoms of dysphagia, chest pain and a test supporting the obstruction such as BARIUM tablet or FLIP from IRRELAVANT)
What is considered a NORMAL EGJ DI (Distensibility Index) in FLIP?
>2 with a 60 mL FILL VOLUME
What is considered a NORMAL EGJ DIAMETER in FLIP?
>16 with a 60-70 mL FILL VOLUME
During FLIP test, what is CONSIDERED an ABNORMAL Rapid Drink Challenge (RDC)?
BOTH the IRP >12 mmHg AND there is PAN-PRESSURIZATION of the esophagus
If EITHER but not both are present, then its INTERMEDIATE
Normal is IRP < 12 mmHg AND no pan-pressurization
Clinical DYSPHAGIA, CHEST pain, TERTIARY contractions on imaging and PREMATURE contractions on manometry?
Distal Esophageal SPASM (short Distal Latency < 4.5 seconds)
Normal IRP and >20% of swallows with DCI >8,000?
HYPERcontractile (jackhammer) esophagus
What MUST be RULED OUT when diagnosing a HYPERcontractile/SPASTIC esophagus?
OPIOID use, GERD, EoE
PPI trial, Calcium Channel Blockers, Nitrates, Sildenafil, Peppermint Oil are all treatments for what ESOPHAGEAL disorder?
HYPERcontractile/SPASM esophagus
What is the MOST COMMON cause of a HYPOcontractile esophagus?
SCLERODERMA (fibrous and vascular oblitertion of esopahgeal muscle and nerves) - low amplitude contractions and hypotensive LES
Otherwise Ineffective Esophageal Motility (DM, amyloidosis, GERD)
>70% INEFFECTIVE swallows (weak contraction with DCI >100 & < 450)
FAILED PERISTALSIS (DCI < 100)
FRAGMENTED swallows (peristaltic break >5 cm) and DCI >450
OR
>50% FAILED SWALLOWS
Ineffective Esophageal Motility
What TEST can you use to PREDICT post fundoplication DYSPHAGIA?
Multiple Rapid Swallows test
If a patient undergoes high-resolution esophageal manometry and is found to have one of these three (EGJ Outlet Obstruction, Distal Esophageal Spasm or HYPOcontractile Esophagus), what else MUST they have to make the DIAGNOSIS?
SYMPTOMS
What class of medications IMPAIRS LES RELAXATION, causes HYPERcontraction with ELEVATED DCI and causes SPASM with SHORTENED DL?
OIPIDS (can mimic achalasia type III, EGJ outflow obstruction, distal esopahgeal spasm and HYPERcontractile esophagus on manometry) - STOP the opioids
What nerve controls the UGI and SMALL BOWEL motiliy?
VAGUS
Pelvic and Lumbar nerves (sympathetics and parasympathetics) control motility for which portion of the GIT?
Colon
In patients with POST-INFECTIOUS Functional Dyspepsia, what motility phase was affected most?
Gastric ACCOMODATION (no effect on gastric emptying)
What medication has been shown to significantly REDUCE symptoms in FUNCTIONAL DYSPEPSIA?
BUSPIRONE
What are the THREE most common causes of GASTROPARESIS?
IDIOPATHIC
DM
Upper GI, heart/lung SURGERY (VAGUS injury)
Patients with WHAT condition present with APPARENT GATROPARESIS even with slowed emptying (due to the disorder itself)?
Eating Disorders
TCAs, OPIATES, SMOKING, LITHIUM, PPIs and CANNABINOIDS can all cause this GI disorder?
GASTROPARESIS
What do you see on an UPPER GI SERIES that is diagnostic for gastroparesis?
POOLING of contrast in the STOMACH in the ABSENCE of an obstruction
What finding on EGD is highly-suggestive for GASTROPARESIS?
BEZOAR
What is considered GOLD standard TEST for GASTROPARESIS?
SOLID-PHASE Gastric Emptying Study (nuclear)