Hernias Flashcards
What is an abnormal protrusion of a viscus outwith its normal body cavity?
Hernia
Name 4 hernias, most common first?
- Inguinal
- Umbilical
- Incisional
- Femoral
What may arise from natural openings or weak areas, caused by stretching or surgical inscision?
Abdominal wall hernias
What type of hernias are inguinal, femoral, umbilicus, oesophageal hiatus and obturator?
Natural abdominal wall hernias
What are incisional, parastomal, epigastric and paraumbilical herias a type of?
Weak area abdominal wall hernia
What is the physiological predisposing factor of abdominal hernias?
Raised intra-abdominal pressure
What can pregnancy and obesity lead to?
Abdominal hernias
What predisposing factor of abdominal hernias can leads to bilateral inguinal hernia?
Prostatism
Can constipation, coughing and heavy lifting cause abdominal hernias?
Yes
What may hernias be classified as?
Reducible or irreducible
If the hernia is irreducible, what may happen to its contents?
Incarcerated or strangulated
What denotes compromise of the blood supply of the contents and its development increases morbidity and mortality?
Strangulation
With strangulation hernias, what system is occluded first?
Low pressure venous system, then arterial supply
When the arterial supply of a hernia becomes occluded, what can develop?
Gangrene
In predisposed patients, to prevent an incisional hernia, what surgical measures are taken?
Tension sutures plus “mass closure” of the linea alba
If you have a malignancy are you more likely to develop an incisional hernia?
Yes
What two aetiological causes related to after an operation can be predisposing factors for incisional hernias?
Post-operative wound infection
Post-operative wound haematoma
What does an ileus do that increases the chance of an incisional hernia?
Raises the intra-abdominal pressure
What class of drug can be a predisposing factor for incisional hernias?
Steroids
Is a vertical or transverse incision more likely to cause an incisional hernia?
Vertical
What type of hernia is common in adult, obese patients?
Paraumbilical
What to epigastric hernias arise from?
Congenital weakness of the linea alba
What type of hernia usually contains extraperitoneal fat?
Epigastric
What type of hernia has a male:female ration of 3:1 and occurs usually in late teens/early adult hood?
Epigastric hernia
How do you repair an epigastric hernia?
With sutures or mesh
What type of hernia is an umbilical hernia?
Congenital
By what age has an umbilical hernia usually resolved, and what action is taken if it hasn’t by then?
Age 3, if > 3 operate
What male:female ratio does a paediatric inguinal hernia have?
9:1
What type of hernias are more common in pre-term and low birth weight infants?
Paediatric inguinal hernias
What side are paediatric inguinal hernias commonly found on and what is there a 20% chance of developing?
Right side, developing a contralateral hernia