1. Gastro Flashcards
Globus pharynges؟
foreign body sensation localised in the neck that does not interfere with swallowing and sometimes is relieved by swallowing.
Diarrhea is:
- More than normal bowel movement for that person.
- Three loose or liquid bowel movements a day.
constipation?
Less than three stools per week.
Coffee ground vomiting occurs in ?
UGIB
EGD contraindications ?
- No consent
- Lack of cooperation (?)
- Unstable angina, asthma or heart failure (?)
- Acute abdomen
- Suspected perforation
Relative EGD contraindications?
• Ventricular arrythmia
• Hemorrhagic diathesis
• Zenker’s diverticulum
• Repeated endoscopy due to mild conditions
(eg. gastritis, dyspepsia, uncomplicated DU)
Colonoscopy contraindications ?
- No consent
- Acute abdomen
- Suspected perforation
- Lack of cooperation (?)
- Unstable angina, asthma or heart failure (?)
- Ventricular arrythmia (?)
- Hemorrhagic diathesis (?)
- Aortic aneurysm (?)
- Repeated endoscopy due to benign diseases (eg. small polyp removed year before)
ERCP complication ?
which one is most common ?
- Acute pancreatitis 1-7% “ MOST COMMON “
- Bleeding 0.7-2%
- Retroperitoneal perforation 0.3-0.6%
- Cholangitis <1%
- Cholecystitis 0.2-0.5%
- Cardio-respiratory <1%
- Mortality rate 0.2% -1.5%
Endosonography - EUS ?
- Staging of tumors.
- **Assessment of submucosal lesions and structures adjacent to the wall of GI tract.
- FNA of lesions adjacent to the wall of GI tract.
- Drainage of fluid collections.
- Risk assessment of UGIB recurrence (doppler function)
Small bowel imaging ?
- Traditional barium study
- Small bowel MRI
- Capsule endoscopy
- Single/double-balloon enetroscopy
Before endoscopic procedure with high risk of bleeding low molecular weight heparin should be stopped ?
24 hrs before the procedure.
ERCP diagnostic indications ?
- Chronic pancreatitis
- Obstructive jaundice
- Vater’s papilla tumors
Before endoscopic procedure with high risk of bleeding Prasugrel should be stopped ?
5 days before the procedure.
Endoscopic procedure with higher risk of bleeding ?
EUS with FNA.
What is the most sensitive and Specific test for colorectal cancer ?
Colonoscopy.
- Diagnostic and therapeutic.
- The diagnostic study of choice for patients with positive FOBT.
CEA ?
- Not useful for a screening.
- Useful for establishing baseline.
- Monitoring treatment efficacy.
- Recurrence surveillance.
- Does not have prognostic significance. (Although patient with preoperative CEA > five have worse prognosis)
Recommendation and screening of colon cancer?
- colon cancer screening begins at age of 50.
- If one family member has colon cancer began at age of 40 or 10 years before the age of onset of family member.
what is the most common cause of large bowel obstruction in adults?
CRC.
- Colonic perforation can lead to peritonitis and it is the most life-threatening complication.
Sign and symptoms based on the specific location of the CRC?
Right side tumors: “Melena”
- Common findings: occult blood in stool iron deficiency anemia and Melena.
Left side: “Heamtochezia” :
- Signs of obstruction are common..
What is the most common symptom for rectal cancer?
Heamtochezia
Colorectal cancer predisposing factors ?
- No relative – CRC risk 1/50
- One 1st degree relative affected -1:17
- Two 1st degree relatives affected -1:10
- Certain genes mutations (APC, K- ras, DCC, p53 etc)
- ↑risk in families with increased cancer prevalence (HNPCC)
- Polyposis syndromes (FAP etc.)
- Long-standing IBD
Pseudopolyp ?
- the destruction of the mucosa in severe IBD, leaving “islands” protruding into the intestinal lumen.
Adenomas?
- increase incidence after 30yo.
- Detected in 30% of 50+ screened patients
- Majority <1cm
- The tendency to become malignant small, but increasing with the diamete.
Advanced adenoma ?
- > 1cm
- villous component
- HGD
- advanced adenoma is found in 4% of screened 50+ patients
- Invasive cancer in 1% of the screened patients
Familial adenomatous polyposis (FAP) ?
- Responsible genes: APC (80%), MYH1
- AD inheritance
- Numerous colorectal polyps >100, duodoenal adenomas
- Lifetime risk of cancer 100% •CRC by age 40 ~100%
Familial adenomatous polyposis (FAP) ? clinical manifestations ?
- Gardner’s syndrome.
- Turcot’s syndrome.
- AFAP (attenuated FAP).
CRC prognosis ?
- 5yr survival according to Dukes classification:
- A>90%.
- D<10%.
- Only 60% amenable to radical surgery.
The most important (conclusive) aspect of CRC diagnostic approach is?
Tissue sample and microscopic assessment.
Which part of Large intestine is most commonly affected by CRC?
Rectum.
Diverticulosis ?
- is the condition of having diverticula in the colon that are not inflamed.
- These are outpockets of the colonic mucosa and submucosa through weaknesses of muscle layers in the colon wall.
- They typically cause no symptoms.
Complicated diverticulitis ?
With one of the following: bowel obstruction, abscess, fistula or perforation.
Uncomplicated diverticulitis ?
Without any associated symptoms.
Location of Diverculosis ?
- Diverculosis do not develop in the rectum.
- Diverculosis we find most often in the left half of the colon.
- > 90 % sigmoid colon.
Diverculosis - symptoms ?
• 70-90 % asymptomatic. • patients may have troublesome symptoms: - colicky abdominal pain, bloating flatulence or altered bowel habit.
What classification are used for diverticulitis?
Hinchey classification.
ttt of mild diverticulitis?
• Mild diverticulitis : without fever, good general condition, without burdening other serious diseases, not treated with immunosuppressants, with good care at home, younger- ambulatory treatment
- liquid diet.
- rest.
- Antibiotics 7-10 day: amoxicillin clavulanate acid or cotrimoxazole + metronidazole or ciprofloxacin + metronidazole.
indication for inpatient ttt for diverticulitis ?
- no effect outpatient
- antibiotic intolerance
- fever.
- dehydration
- destruction of immunosuppression
- serious comorbidities
- old age
- cachexia.
Treatment – in the hospital for dverticulitis ?
• diet „zero” • fluids iv • parenteral nutrition • Clindamycin iv or • Metronidazole iv with: - ciprofloxacin iv or - third-generation cephalosporin or - aminoglycoside or - aztreonam.
Indications for surgery diverticulitis ?
- intra abdominal abscess.
- intestinal fistula
- obstruction caused by narrowing the intestine
- intestinal perforation and peritonitis
- When the patient presents with perforation and defuse peritonitis, whether it is purulent or feculent. (Hinchey classification III and IV)
When we perform colonoscopy for diverticulitis?
- Acute state (divercutitis) – NO !!! (gnerally)
* After acute state – yes !!! (ok. 6 weeks )
Chronic diverticulitis symptoms ?
- persist at least six months
- are milder than acutely
- can mimic the symptoms of inflammatory bowel diseases and irritable bowel syndrome
- More likely to have complications.
It’s the most common cause of lower G.I. bleeding?
Diverticular bleeding is the source of 17 to 40 percent of lower gastrointestinal (GI) hemorrhage in adults, making it the most common cause of lower GI bleeding.
- Most diverticular bleeding is self-limited, although it should be suspected in patients with massive and painless rectal hemorrhage.
What is the most common presentation of diverticular bleeding?
- Massive, painless rectal hemorrhage.
- In approximately 80% of patients, diverticular hemorrhage resolves spontaneously.
Hepatitis A ؟
- incubation period of ~4 weeks.
- virus is present in the liver, bile, stools and blood 2 weeks before manifestations.
- antibody response - IgM class for 3 -6 (12) months (than IgG).
- elevated ALT.
Hep B - treatment ?
- incubation 6weeks to 6 months.
- self-limiting within weeks to months.
- antiviral drugs include lamivudine, adefovir, tenofovir, telbivudine, entecavir, interferon alpha-2a and PEGylated interferon alpha-2a
- prevention - vaccination
Hepatitis C ?
- Causes acute symptoms in 15% of cases
- Generally mild
- ledipasvir, sofosbuvir, paritaprevir, ombitasvir, dasabuvir
and ribavirin - Pegylated interferon (gen. 3)
drugs induced liver injury “DILI” diagnosis ?
- ALT>AST
- mixed hiperbilirubinemia
- peripheral eosinophilia
- elongated PT >5 x
- histopatologu
Roussel Uclaf Causality Assessment Method ?
was developed to quantify the strength of association between a liver injury and the medication implicated as causing the injury.
King’s College Hospital criteria ?
to assess Acute liver failure.
which is NOT used for Liver encephalopathy - therapy ? A- Lactulose B- L- ornithine. C- Rifaximine D- Neomycin E- Terlipresine
E- Terlipresine
Hepatitis A - prevention ?
- vaccination
- hygiene
- sanitation
- The two types of vaccines are one containing inactivated hepatitis A virus, and another containing a live but attenuated virus.
In amanita poisoning, treatment of choice is ?
Cristal penicillin.
Irritable bowel syndrome (1) Definition according to Rome IV Criteria (2016):
“Recurrent abdominal pain on average at least 1 day a week in the last 3 months associated with two or more of the following:
- Related to defecation
- Associated with a change in a frequency of stool
- Associated with a change in form (consistency) of stool.
- Symptoms must have started at least 6 months ago.”
IBS - Genetic background:
• Isoform of serotinine reuptake transporter SERT • Cytokine genes’ polymorphism – TNF-α – IL-10 – TGF-β
Which part of diagnostic approach plays the most important role in patient with functional G.I. disorders?
Subjective examination.
Extraintestinal manifestations of IBS may be?
Sleepiness, headaches, lumbar spine pain.
Diarrhea definitions according to the duration of symptoms:
- Acute: 14 days or fewer.
- Persistent diarrhea: more than 14 but fewer than 30 days in duration.
- Chronic: More than 30 days in duration.
Invasive diarrhea, or dysentery ?
- Is defined as diarrhea with visible blood or mucus, in contrast to watery diarrhea.
- Dysentery is commonly associated with fever and abdominal pain./
Why it is not preferred to implement antibiotic therapy as a first line treatment of acute diarrhea?
A. Most Causes are likely.
B. Treatment is conservative because the area is self-limiting.
C. Most cases are benign.
D. Antibiotics cause bacterial resistance.
what is most important single test for celiac disease is ?
IgA antibodies against tissue transglutaminase 2
Which groups of patients should be tested for celiac disease ?
Down syndrome.
GERD is ?
Pathological reflux of gastric content
(acidic pH < 4 or alkaline if pH > 4) into the esophagus, producing subjective symptoms
and/ or their sequelae,
leading to the lowering of the patients’ quality of life
Alarming symptoms – indications for immediate gastroscopy in GERD patients ?
— bleeding for the upper gastrointestinal tract. — unexplained weight loss. — dysfagia — odynofagia — unexplained anemia. — vomiting — palpabale mass in the upper abdomen — failure of farmacological treatment — exacerbation of symptoms
Erosions of the esophgus and mucosal breaks ?
- A common characteristics of ?
- A common characteristics of esophagitis.
- Can be seen at first histologically And as the disease progresses may be served endoscopically.
What classification do we use to evaluate Erosions of the esophgus?
Los Angeles classification.
- Grade A, B, C and D.
Esophageal stricture ?
- Dysphagia -> solid food then liquid food.
- ttt: endoscopic and PPI.
Barrett’s esophagus (precancerous condition) ?
- stratified squamous epithelium changes into simple columnar epithelium with goblet cells.
- Is associated with an increased risk of developing esophageal cancer.
- It’s an indication of monitoring of disease progression using gastroscopy plus biopsy and histopathological examination.
How often are you supposed to monitor Barrett’s esophagus progression ?
- endoscopy every 3 years, if earlier histopathological examination did not confirm dysplasia.
- endoscopy every year, if earlier hist-pat confirms low grade of dysplasia.
- endoscopy every 3 months , if earlier hist-pat confirms high grade of dysplasia.
Barrett’s esophagus treatment ?
- Endoscopic mucosectomy.
- Endoscopic submucosal dissection.
- Photodynamic therapy.
- High-frequency wave ablation .
Esophageal cancer ?
- mostly adenocarcinoma.
- Located in proximity of LES, lower portion of esophagus.
The two main sub-types of the esophageal cancer are
- esophageal squamous-cell carcinoma (often abbreviated to ESCC), which is more common in the developing world.
- esophageal adenocarcinoma (EAC), which is more common in the developed world
Diagnosis of GERD ?
- basic medical interview. –>
- eartburn, backward reflux of gastric contents to the esophagus, burning of the sternum for at least 3 months authorizes the initiation of pharmacological treatment. –>
- PPI test
Diagnostics of GERD – Proton pump inhibitor test ?
- PPI administration on en empty stomach ~30–45 minutes before breakfast and ~30 minutes before supper.
- The test is administered in syndromes of chest pain and in syndromes related to extraesophageal symptoms.
- Effects of treatment can be observed in 2–3 months.
Gastroscopy rule in GERD ?
For patients with GERD being treated for prolonged periods of time, regardless of symptoms at present, gastroscopy should be performed to rule out other pathologies.
- It is recomended to perform gastroscopy in all pts who present symptoms of esophagitis.
pH Probe study info?
- Standard method of diagnosing GERD.
- Indicated in pts with unexplained chest pain after ruling out MI.
- The study is conducted in pts with extraesophageal symptoms.
- Standard proceedure for surgical eligibity and post-op control.
24 hour pH-probe study ? how to function ?
- Probe placement for measuring of hydrogen concentration.
- The probe is placed ~5cm from the LES and is connected to a battery operated registrator.
ttt of GERD ?
- PPI.
- H2- receptor blockers.
- Prokinetic drugs.
- Antaacids.
- Surgery.