Hernia Flashcards
What is hernia
A protrusion of a viscus or part of a viscus through a defect or weakness in the wall of its containing cavity.
Classification of hernia
1) external: sac protrudes tru the abdominal wall. Commonest. Egs: inguinal,femoral(commoner in females), epigastric, paraumbilical, umbilical, spigelian, diastasis recti,obturator, lumbar, gluteal, sciatic
2) Internal hernia: sac doesn’t protrude outside the the trunk egs:
Diaphragmatic, paraesophageal, paraduodenal,foramen magnum hernia, transmesenteric, Winslow hernia(epiploic) , sigmoid mesocolon hernia, hiatic.
Risk factors/causes of hernias
Chronic cough,weight lifting, constipation,previous hx, abdominopelvic surgery,pregnancy,congenital,old age, straining to urinate,ascites
Clinical features of Hernia
Bulging pouch,pain, nausea, vomiting,abdominal distension (strangulation), fever,constipation,urinary incontinence
What’s Inguinal (Hesselbach) Triangle? List borders
Triangular area on the inferior aspect of the anterior abdominal wall within the groin. Is is an area of weakness.
Media border: lateral border of rectus muscle
Lateral border: inf epigastric vessels
Inferior border: inguinal lig
Types of inguinal hernia
Direct and indirect
Characterise direct and indirect hernia
Direct
- common in old ppl
- protrude tru area of weakness
- Comes our tru posterior wall of inguinal canal. Doesn’t enter scrotum
- media to inferior epigastric vessels
Indirect
-Deep ring: formed by the transversalis fascia-> a weak point
-more in young ppl
-sac is anteriolateral to spermatic cord
-lateral to inferior epigastric vessels
More prone to complications
* in children inguinal hernia is indirect in99% cod of patent processes vaginalis
What is pantaloon hernia?
Occurrence of both direct and indirect inguinal hernias at the same time.
Investigations in hernia
Dx is made clinically Fbc Urinalysis E/U/Cr Abdominal USG Chest X-ray ECG if >40yrs
Complications of Hernia
Irreducibility (incarceration) Obstruction Strangulation Inflammation Rupture Peritonitis Fistula formation
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