Diagnosis
A doctor might suspect dissociative fugue when people seem confused about their identity or are puzzled about their past or when confrontations challenge their new identity or absence of one. The doctor reviews symptoms and does a physical examination to exclude physical disorders that may contribute to or cause memory loss. Sometimes dissociative fugue cannot be diagnosed until people return to their pre-fugue identity and are distressed to find themselves in unfamiliar circumstances, sometimes with awareness of "lost time". The diagnosis is usually made retroactively when a doctor reviews the history and collects information that documents the circumstances before people left home, the travel itself, and the establishment of an alternative life. Functional amnesia can also be situation-specific, varying from all forms and variations of traumas or generally violent experiences, with the person experiencing severe memory loss for a particular trauma. Committing homicide; experiencing or committing a violent crime such as rape or torture; experiencing combat violence; attempting suicide; and being in automobile accidents and natural disasters have all induced cases of situation-specific amnesia (Arrigo & Pezdek, 1997; Kopelman, 2002a). As Kopelman (2002a) notes, however, care must be exercised in interpreting cases of psychogenic amnesia when there are compelling motives to feign memory deficits for legal or financial reasons. However, although some fraction of psychogenic amnesia cases can be explained in this fashion, it is generally acknowledged that true cases are not uncommon.
Sigmoid colon volvulus, also known as sigmoid volvulus, is volvulus affecting the sigmoid colon. It is a common cause of bowel obstruction and constipation. It is common in Asia, India (7% of intestinal obstruction) and especially South India because of the high fibre diet. It is a very common cause of large bowel obstruction in Peru and Bolivia due to high altitude. Signs and symptoms
Pain in abdomen – initially left-sided, eventually all over
Absolute constipation
Enormous distension of abdomen
Late vomiting and eventually dehydration
Features of peritonitis
Hiccup and retching may occur
Tyre-like feel of the abdomen is diagnostic

Cause
The condition is more common in males and with old age. It is also common in people with chronic constipation and laxative abuse. It is common in:
Ogilvie syndrome
Individuals with learning difficulties
Chagas disease
Hypothyroidism
Anticholinergic drugs
Multiple sclerosis
Scleroderma
Parkinsons diseaseIn sigmoid, volvulus rotation is always anticlockwise. It requires one and a half rotation to cause vascular obstruction and gangrene which eventually leads to perforation either at the root or at the summit of the sigmoid loop. Diagnosis
Plain X-ray (diagnostic in 70–80%): coffee bean sign is seen
Contrast enema: bird beak sign
CT scan: shows characteristic whirl pattern
Blood: haematocrit, renal functions, serum electrolytes

Treatment
RT aspiration
IV fluids
Catheterisation
Antibiotics
By flatus tube or sigmoidoscope, derotation is done
If derotation does not occur, then laparotomy through midline incision should be done. It is derotated manually. If viable, it can be fixed to lateral wall of abdomen or pelvis
If sigmoid colon is gangrenous, then Hartmanns operation or Paul Mikulicz operation is done

References


== External links ==