Ventral hernia Flashcards
What are the four abdominal quadrants?
Upper left, Upper right, Lower left, Lower right
How is the abdomen divided into regions?
Divided into 9 regions by two pairs of planes: Vertical planes (midclavicular planes) and Horizontal planes (transpyloric plane, intertubercular plane)
What does the right hypochondrium contain?
Liver
What does the epigastric region contain?
Liver, stomach, pancreas
What is contained in the right lumbar region?
Ascending colon
What does the umbilical region contain?
Small intestine, transverse colon
What does the right iliac region contain?
Ileocecal junction, appendix
What is the hypogastric region known for containing?
Small intestine, urinary bladder (full), pregnant uterus
What is the linea alba?
A fibrous band separating the rectus sheath from its counterpart on the opposite side, extending from the xiphoid process to the symphysis pubis
Where does lymph drainage above the umbilicus go?
Upward to the anterior axillary (pectoral group of nodes)
Where does lymph drainage below the umbilicus go?
Downward and laterally to the superficial inguinal nodes
What are the nerve supplies to the anterior abdominal wall derived from?
Anterior rami of lower six thoracic and first lumbar nerves
What is a reducible hernia?
Contents can be returned to body cavity of origin
What characterizes an irreducible (incarcerated) hernia?
Contents of a hernial sac cannot be pushed back into the peritoneal cavity
What is a strangulated hernia?
Blood vessels are compressed, leading to ischemia
What are the types of external hernias based on location?
- Inguinal (Direct/Indirect/Dual or Pantaloon) * Ventral (many types) * Femoral * Obturator * Lumbar (Dorsal) * Perineal * Sciatic * Gluteal
What are the types of internal hernias?
- Hiatal * Diaphragmatic * Peritoneal recesses and lesser sac * Postoperative
What are the indications for hernia repair?
- Complicated hernias (emergency) * Small defect relative to the size of the hernia * Repeated or recent attacks of irreducibility * Females expected to become pregnant * Pain
What are the contraindications for hernia repair?
- Recent myocardial infarction/angina * COPD * Cirrhosis, ascites * Congestive heart failure * End-stage malignancy
What is an incisional hernia?
Occurs at sites of old surgical incisions anywhere on the abdomen
What are risk factors for incisional hernias?
- Old age * Male sex * Obesity * Bowel surgery * Suture type * Chest infection * Abdominal distension * Wound infection
What are common clinical features of incisional hernias?
- Pain and swelling in the vicinity of previous scar * Bulging more prominent on standing and coughing * Attacks of subacute intestinal obstruction
What is the treatment for smaller defects in incisional hernias?
Open umbilical hernia repair
What is the treatment for larger defects in incisional hernias?
Mesh repair (open or laparoscopic)