Acid Reflux Flashcards
What pain is Paul experiencing?
Dull pain
When does it normally occur?
After dinner
Especially if he eats late
How does it affect his everyday activities?
Stresses him- unsure about what to eat
Loses sleep
Describe the anatomical course of the oesophagus?
beginning
Neck (C6)
Continuous superiorly with the laryngeal part of the pharynx
Describe the anatomical course of the oesophagus?
middle
descends downward into the superior mediastinum
positioned between the trachea and the vertebral bodies of T1 to T4
Where does the oesophagus enter the abdomen?
Oesophageal hiatus at T10
What is the layers of the oesophagus?
Adventitia
Muscle layer
Submucosa
Mucosa
What is the adventitia?
outer layer of connective tissue
Where is there serosa rather than adventitia?
very distal and intraperitoneal portion of the oesophagus
What is the muscle layer?
external layer of longitudinal muscle and inner layer of circular muscle
What is the external layer composed of in each third?
Superior third – voluntary striated muscle
Middle third – voluntary striated and smooth muscle
Inferior third – smooth muscle
What is mucosa?
non-keratinised stratified squamous epithelium (contiguous with columnar epithelium of the stomach).
How is food transported through the oesophagus?
peristalsis
What is peristalsis?
Rhythmic contractions of the muscles, which propagates down the oesophagus
What can interfere with peristalsis?
Hardening of muscle layers can also cause dysphagia
What are oesophageal sphincters?
upper and lower oesophageal sphincters. They act to prevent the entry of air and the reflux of gastric contents respectively.
What is the upper o.s.?
anatomical, striated muscle sphincter at the junction between the pharynx and oesophagus
What produces the upper o.s.?
cricopharyngeus
What is the function of the upper o.s.?
prevent the entrance of air into the oesophagus
What is the lower o.s.?
located in the gastro-oesophageal junction
situated to the left of the T11 vertebra, and is marked by the change from oesophageal to gastric mucosa
What 4 phenomena form the lower o.s.?
The oesophagus enters the stomach at an acute angle.
The walls of the intra-abdominal section of the oesophagus are compressed when there is a positive intra-abdominal pressure.
The folds of mucosa present aid in occluding the lumen at the gastro-oesophageal junction.
The right crus of the diaphragm has a “pinch-cock” effect.
What are the four physiological constrictions in the lumen on the oesophagus?
Arch of aorta
Bronchus (left main stem)
Cricoid cartilage
Diaphragmatic hiatus
What is a physiological constriction?
Where food/foreign objects are likely to get stuck
What is Barrett’s oesophagus?
metaplasia of lower oesophageal squamous epithelium to gastric columnar epithelium
What causes Barrett’s?
hronic acid exposure as a result of a malfunctioning lower oesophageal sphincter
What is the most common symptom of Barrett’s?
long-term burning sensation of indigestion
unpleasant taste in mouth
nausea
vomiting
How can Barrett’s be diagnosed?
Endoscopy
What percentage of malignancies in the UK are oesophageal carcinomas?
2%
What are the clinical features of oesophageal carcinomas?
Dysphagia
Weight loss
What are the two types of oesophageal carcinomas?
Squamous cell carcinoma
Adenocarcinoma
What is squamous cell carcinoma?
The most common subtype of oesophagus cancer. It can occur at any level of the oesophagus
What is adenocarcinoma?
Only occurs in the inferior third of the oesophagus and is associated with Barrett’s oesophagus. It usually originates in the metaplastic epithelium of Barrett’s oesophagus
What are oesophageal varices?
abnormally dilated sub-mucosal veins (in the wall of the oesophagus) that lie within this anastomosis
When are oesophageal varices produced?
when the pressure in the portal system increases beyond normal, a state known as portal hypertension
When does portal hypertension most commonly occur?
secondary to chronic liver disease, such as cirrhosis or an obstruction in the portal vein
How do most patients with oesophageal varices present?
haematemesis (vomiting of blood)
Who is at high risk of developing oesophageal varices?
Alcoholics
What percentage of England’s working age population struggle to undertones health information that only contained text?
43%
Who faces the most difficulty when it comes to health literacy?
Older people BAME Those with low qualifications Those without English has a first language Those with low job status Those in the poverty trap
What does poor understanding lead to?
Higher risk of emergency admission
Serious health conditions
What is reflux?
some of the acidic stomach contents come back up the oesophagus towards the mouth
What is heartburn?
a burning sensation in the chest because of the acid that’s in the stomach
Where is heartburn felt?
in the chest behind the breastbone, and it may move up towards the throat
What are other symptoms of acid reflux?
an unpleasant taste in the mouth and swallowing problems
What does GORD stand for?
Gastro-Oesophageal reflux disease
What are the treatments for reflux?
Proton pump inhibitors
4-8 week course
If it does not work a H2 blocker may be offered
What is the treatments for severe oesophagitis?
8 week PPI treatment
When is surgery appropriate for reflux?
for people who do not want to take medication long-term, or for those who have unpleasant side effects from their medication
What is the most common type of surgery for reflux?
laparoscopic fundoplication
What is laparoscopic fundoplication?
keyhole surgery technique, in which the surgeon stitches and folds the top of the stomach, just below where the oesophagus meets the stomach, to create a smaller opening
What is the aim of laparoscopic fundoplication?
reduce the amount of stomach contents re-entering the oesophagus
repait hiatus hernia
strengthen the valve at the bottom of the oesophagus
What other terms could be used for heartburn?
Acid reflux
Tummy ache
Indigestion
What is the single medical term that describes the category of symptoms Paul is describing?
Dyspepsia
What is dyspepsia?
Recurrent epicanthic pain, heartburn or symptoms of acid regurgitation, with out without bloating, nausea or vomiting
Would you use dyspepsia with a patient?
Establish good communication using familiar words
What additional symptoms might a patient experience if the cause of their dyspepsia was oesophageal reflux?
Excess salivation- water brash
What are the other symptoms one might get if the cause is gastroenteritis?
Complete later
What could cause dyspepsia?
Coeliac disease IBS Upper GI malignancy GORD Gastritis Pancreatitis Medication side effects Functional dyspepsia Gastroenteritis Stress Peptic ulcer disease Coronary heart disease
What are the most likely differentials for Paul?
GORD Gastritis Functional dyspepsia Stress Peptic ulcer disease
What is functional dyspepsia?
Suffers symptoms but investigations do not show causes
May have gastritis but it doesn’t correlate with the severity of symptoms
What can sever gastritis lead to?
Ulceration
What is the second most common endscopic finding?
Oesophagitis
What is the third most common finding?
Peptic ulcer disease
What pain is associated with biliary disease?
Colicky pain
What is colicky pain?
Intermittent, spastic pain when a hollow tube contracts to get rid of an obstruction
Why must coronary disease be considered?
Stress
Risk factors- smoking
Can present as dyspepsia
What responsibility falls upon GPs?
Making decisions of what is significant of not
Common symptoms can be indicative of mor serious, less common diseases
What is differential diagnoses?
The possibilities of diagnosis that can range from less to very dangerous
What terms is used to indicate symptoms that can indicate very serious conditions?
Red flag symptoms
Why is it important to identify red flag symptoms?
So patients with more serious symptoms are seen first and have the relevant investigations carried out urgently
What are other common presentations to the GP for which red flag features might be important?
Back pain
What can back pain be a sign of?
Spinal-cord compression
malignancy
infection
Red flags for back pain.
Previous cancer
bladder bowel dysfunction
Red flags for headaches?
Meningism
raised intracranial pressure
sudden and severe
What is the most serious differential?
Upper GI cancer
What red flag features do you think might make a doctor suspicious for Upper GI cancer?
Weight loss
Mass
Dysphagia
What is another thing to bear in mind with a red flag symptoms?
How long symptoms persist
E.g. vomiting over extended period is more relevant
Age
Other symptoms
What helps GPs decide when to refer patients?
Nice referral guidelines
What is seven further actions are most appropriate at this time? After the GP has examined Mr Miller for red flags
Testing for H pylori FBC LFTs ECG Alcohol history Weight Medication history