GI Surgery (upper, HPB, lower, perianal) Flashcards
What are the causes of dysphagia?
Inflammatory
Pharyngitis, tonsillitis, oesophagitis
Motility disorders
Local: Achalasia, Diffuse spasm, Bulbar palsy
Systemic: CREST, MG
Mechanical
Luminal: FB
Mural: Benign stricture, web, malignancy, pouch
Extramural: Retrosternal goitre, rolling hiatus hernia, lung Ca, LNs
What is the area of weakness which gives to form a pharyngeal pouch?
Killian’s dehiscence
What is the surgical management of achalasia?
Heller’s cardiomyotomy
When would you see a corkscrew oesophagus?
Diffuse oesophageal spasm
What are the features of Plummer Vinson syndrome?
IDA
Webbing
Glossitis/cheilosis
What are the two types of oesophageal cancer and where do they affect?
Adenocarcinoma - 65%
Lower 3rd
Derived from GORD and Barretts
SCC - 35%
Upper and middle 3rd
Assoc with EtOH and smoking
What are the different surgical approaches to oesophagectomy and what incisions are used for each?
Ivor-Lewis - Vertical abdo incision with right sided thoracotomy
McKeown - Vertical abdo ioncision with right sided thoracotomy and a left neck incision
What extra GI symptoms might GORD cause?
Nocturnal asthma
Chronic cough
Sinusitis/laryngitis
What features would make you do an OGD in a patient?
55ALARMS
>55 Anaemia Loss of weight Anorexia Recent onset progression Melaena Swallowing difficulty
What is the surgical management of GORD?
NIssen Fundoplication
What are the complications of a Nissen Fundoplication?
Dysphagia
Inability to belch or vomit
Which type of hiatus hernia should be operated on even if symptomatic and why?
Rolling - as it may strangulate
What are the complications following antrectomy/vagotomy for PUD?
Physical Gastric cancer risk Reflux Abdo fullness Stricture Stump leakage
Metabolic
Dumping syndrome - Distension, flushing, N/V, fainting
Blind loop syndrome - malabsorption and diarrhoea
Vitamin deficiency due to parietal cell loss
Weight loss
What is the Rockall score used for and what are its constituent parts?
Used to assess risk of rebleeding in upper GI bleeds
Age (old is worse) Shock Comorbidities Diagnosis Signs of recent haemorrhage
What are some causes of portal hypertension?
Pre-hepatic - Portal vein thrombosis
Hepatic - cirrhosis, schisto, sarcoid
Post hepatic - Budd Chiari, RHF, constrictive pericarditis
What is the process and aim of the TIPSS procedure?
Transjucular intrahepatic portosystemic shunt
Shunt formation between hepatic and portal veins to reduce portal pressure
Used prophylactically or acutely if endoscopic therapy fails to control a variceal bleed
What sign would you see on AXR in a ruptured peptic ulcer?
Rigler’s sign - pneumoperitoneum
What would be seen on the ABG of a gastric outlet obstruction?
Hypochloraemic hypokalaemic metabolic alkalosis
What type of cancer does H.ylori predispose to?
MALToma
What do Zollinger Ellison tumours secrete, and what neurocutaneous syndrome are they associated with?
Gastrin
MEN1
What is the surgical management of ZE syndrome?
Tumour resection OR
Roux en Y gastric bypass
What criteria must be met for bariatric surgery to be considered?
BMI>=40 with significant scope for improvement with weight loss
Failure of non surgical techniques
Fit for surgery
Integrated post op programme
What are the complications of gallstones?
In the gallbladder - colic, a/c cholecystitis, mucocele
In the CBD - obstructive jaundice, pancreatitis, cholangitis
In the gut - gallstone ileus
What is the pathogenesis of biliary colic?
Gallbladder spasm against a stone impacted in the neck of the gallbladder or CBD
What is the presentation of biliary colic?
RUQ pain radiating to the back
Sweating, N/V
Precipitated by fatty food
Jaundice only if stone is in CBD
What investigations and results would you do for biliary colic?
Urine - bilirubin, urobiliinogen Bloods - standards AXR - 10% are radioopaque Erect CXR - look for perforation USS - dilated ducts and GB wall oedema If dilated ducts seen then do MRCP
What is the pathogenesis of acute cholecystitis?
Stone impaction in Hartmann’s leading to chemical or bacterial inflammation
What is the presentation of acute cholecystitis?
Severe RUQ pain that is continuous (unlike biliary colic)
Fever
Vomiting
WHat are the examination findings in acute cholecystitis?
Local peritonism Tachycardia May be jaundiced Murphy's positive Boas sign - hyperaesthesia below right scapula
What is the non-surgical management of acute cholecystitis?
NBM Fluid resuscitation Analgesia Cef and met The majority of cases will settle over 1-2 days
What are the features of chronic cholecystitis?
Flatulence Dyspepsia Upper abdo discomfort Distension Nausea Exacerbated by fatty foods
What is going on in a gallstone ileus, and what is Rigler’s triad?
Large stone erodes through GB to duodenum through an inflammatory fistula, impacting the distal ileum leading to an obstruction
Rigler’s triad describes:
Pneumobilia
SBO
Gallstone in RLQ
What (numerically) causes obstructive janudice?
30% stones
30% pancreatic head Ca
30% other - LNs, PBC, PSC, OCP, cholangiocarcinoma
What are the features of ascending cholangitis?
Charcots 3 - fever, RUQ pain, jaundice
Reynolds 5 - Charcot3, shock, confusion
What are the risk factors for pancreatic cancer?
SINED
Smoking Inflammation Nutrition (high fat) EtOH DM
What is the commonest type of pancreatic carcinoma, and where are they most commonly found?
90% ductal adenocarcinoma, 60% in the head
Cause of acute pancreatitis?
GET SMASHED
Gallstones EtOh Trauma Steroids Mumps Autoimmune Scorpions Hyperlipidaemia ERCP ~Drugs - thiazides, azathioprine
When would you see Grey Turner’s and Cullen’s signs?
Acute pancreatiutis
What is the Modified Glasgow Criteria and its component parts?
Assess severity and predict mortality of acute pancreatitis
PANCREAS
PaO2 Age >55 Neutrophils Ca2+ (low) Renal function Enxymes Albumin Sugar
What are the complications of acute pancreatitis?
Early - ARDS, shock, renal failure, DIC, hypocalcaemia, hyperglycaemia
Late - Panc necrosis/infection/abscess, splenic artery bleed, thrombosis (BUDCHIARI), pancreato-cutaneous fistula
When and how might a pancreactic pseudocysts present?
4-6 weeks after an attack with persistent abdo pain and early satiety
Which causes chronic pancreatitis - alcohol or gallstones?
Alcohol
What are the risk factors for cholangiocarcinoma?
PSC (/UC)
Hep B/C
WHat is the rpesentation of cholangiocarcinoma?
Progressive painless obstructive jaundice with steatorrhoea and weight loss