6 Questions
What is the primary cause of volvulus?
Abnormalities in intestinal rotation during fetal development
What is the most common type of volvulus in adults?
Sigmoid volvulus
What is the primary symptom of volvulus?
Abdominal pain
What is the primary diagnostic tool for detecting volvulus?
CT or MRI scans
What is the primary treatment for sigmoid volvulus?
Endoscopic detorsion
What is the primary goal of supportive care in volvulus?
To manage symptoms and stabilize the patient
Study Notes
Definition and Causes
- Volvulus: a twisting of the intestine that can cut off blood flow and lead to tissue death
- Caused by:
- Abnormalities in intestinal rotation during fetal development
- Intestinal malrotation
- Adhesions or twisting of the mesentery (membrane attaching intestine to back of abdominal wall)
Types of Volvulus
- Midgut volvulus: twisting of the small intestine, often in infants and children
- Sigmoid volvulus: twisting of the sigmoid colon, more common in adults
- Caecal volvulus: twisting of the caecum, a rare type
Symptoms
- Abdominal pain, often sudden and severe
- Nausea and vomiting
- Abdominal tenderness
- Decreased or absent bowel sounds
- Possible bowel obstruction or perforation
Diagnosis
- Imaging studies: CT or MRI scans to visualize the intestine and detect twisting
- Upper GI series: X-ray examination of the small intestine to identify malrotation
- Endoscopy: examination of the inside of the intestine with a flexible tube and camera
Treatment
- Surgical intervention: untwisting of the intestine, possible resection of damaged tissue
- Endoscopic detorsion: untwisting of the intestine using an endoscope, possible for some cases of sigmoid volvulus
- Supportive care: management of symptoms, fluids, and electrolytes until surgical intervention
Definition and Causes
- Volvulus is a twisting of the intestine that can cut off blood flow and lead to tissue death.
- Abnormalities in intestinal rotation during fetal development can cause volvulus.
- Intestinal malrotation can lead to volvulus.
- Adhesions or twisting of the mesentery, a membrane attaching the intestine to the back of the abdominal wall, can also cause volvulus.
Types of Volvulus
- Midgut volvulus is a twisting of the small intestine, which often occurs in infants and children.
- Sigmoid volvulus is a twisting of the sigmoid colon, which is more common in adults.
- Caecal volvulus is a twisting of the caecum, a rare type of volvulus.
Symptoms
- Sudden and severe abdominal pain is a symptom of volvulus.
- Nausea and vomiting can occur in individuals with volvulus.
- Abdominal tenderness is a common symptom of volvulus.
- Decreased or absent bowel sounds may be present in individuals with volvulus.
- Volvulus can lead to bowel obstruction or perforation.
Diagnosis
- CT or MRI scans are used to visualize the intestine and detect twisting.
- An upper GI series, an X-ray examination of the small intestine, can help identify malrotation.
- Endoscopy, an examination of the inside of the intestine with a flexible tube and camera, can aid in diagnosis.
Treatment
- Surgical intervention involves untwisting of the intestine and possible resection of damaged tissue.
- Endoscopic detorsion, untwisting of the intestine using an endoscope, is possible for some cases of sigmoid volvulus.
- Supportive care, including management of symptoms, fluids, and electrolytes, is necessary until surgical intervention.
This quiz covers the definition, causes, and types of volvulus, a twisting of the intestine that can cut off blood flow and lead to tissue death. Topics include midgut volvulus and sigmoid volvulus.
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