Clinical Features

The clinical manifestations of paraduodenal hernias may range from chronic or intermittent mild digestive complaints to acute intestinal obstruction with perhaps gangrene and peritonitis.17,29,30 A history of indigestion or periodic cramps, vomiting, and distention frequently dating back to childhood may be elicited. Postprandial pain is a characteristic symptom and may be relieved by postural changes. Distention is typically of a mild degree because the obstruction is usually high in the intestinal tract. Compression of the inferior mesenteric vein in the neck of the left hernial sac may result in vascular obstruction with the development of hemorrhoids, dilated anterior abdominal veins, and venous congestion and infarction of the bowel.31

Essentials of Human Physiology

Essentials of Human Physiology

This ebook provides an introductory explanation of the workings of the human body, with an effort to draw connections between the body systems and explain their interdependencies. A framework for the book is homeostasis and how the body maintains balance within each system. This is intended as a first introduction to physiology for a college-level course.

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