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7 Cards in this Set
- Front
- Back
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MECHANISMS: Hiatal Hernias
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People after middle age
-> Weakening of diaphragm muscle + Widening of oesophageal hiatus -> Protrusion of top part of stomach through oeso hiatus into mediastinum |
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Hiatal Hernias:
Most common in what population? |
People after middle age
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Hiatal Hernias:
Presentation? |
Distressful and painful
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Hiatal Hernias:
2 main types? |
Sliding (95% cases)
Rolling (paraoesophageal) (5% cases) |
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Hiatal Hernias: Sliding
Describe generally. |
Abdominal part of oeso + whole top circumference of stomach (cardia + fundus) slide superiorly thru oeso hiatus, into thorax
Sliding occurs when lying down or bending over Regurg possible (diaphragm crus clamping action weak) |
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Hiatal Hernias: Rolling
Describe generally. |
Cardia (lesser curvature) stays still
Pouch of peritoneum + part of fundus -> Extends thru oeso hiatus (anterior to oeso) No regurg (cardia remains in normal position) Less common, but higher chance of strangulation Less |
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Congenital diaphragmatic hernias:
Complications? |
Can lead to pulmonary hypoplasia (herniated abdo contents in pleural space impedes lung development)
Mortality 76% |
