intestinal obstruction

Apr 16th, 2015
Studypool Tutor
Price: $5 USD

Tutor description

Word Count: 1027
Showing Page: 1/6
SIGMOID VOLVULUSDefinitionAxial rotation or twisting of sigmoid colon on an axis formed by its mesentery. Result in partial or complete obstruction of the lumen and may be followed by circulatory impairment of the bowel which may lead to gut gangrene.Accounts for >50% of intestinal obstruction in parts of Africa. Commonest cause of large bowel obstruction.Predisposing factors1.High dietary fibre diet major contributing factor .2.Chronic constipation3.Long redundant colon4.Acquired megacolon eg.TB, Diabetes5.Narrowly based mesentery.Age-Occur in the elderly. -Peak age - >70yrs-Especially elderly patients suffering from psychiatric & chronic neurological diseases such as stroke or multiple sclerosis. -Also, cardiovascular disease and diabetes.Clinical presentationHistory1. Acute colicky abdominal pain usually with persistence of pain between spasms.May be a previous history of transient attacks in which spontaneous reduction of the volvulus has occurred.2.Abdominal swelling3. Constipation is absolute-obstipation.4. Vomiting-if present appear late.Physical examination1. Most striking finding is of a tensely distended, tympanitic, drum-like abdomen. 2. The rectum is empty of stool.3. Bowel sounds are often increased 4. Signs of peritoneal inflammation such as rebound tenderness or guarding are unusual. -When these signs are present they suggest that colonic infarction or gangrene has occurred. 5.Signs of dehydration may be apparent if presentation

Review from student

Studypool Student
" Totally impressed with results!! :-) "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1829 tutors are online

Other Documents


Brown University

1271 Tutors

California Institute of Technology

2131 Tutors

Carnegie Mellon University

982 Tutors

Columbia University

1256 Tutors

Dartmouth University

2113 Tutors

Emory University

2279 Tutors

Harvard University

599 Tutors

Massachusetts Institute of Technology

2319 Tutors

New York University

1645 Tutors

Notre Dam University

1911 Tutors

Oklahoma University

2122 Tutors

Pennsylvania State University

932 Tutors

Princeton University

1211 Tutors

Stanford University

983 Tutors

University of California

1282 Tutors

Oxford University

123 Tutors

Yale University

2325 Tutors