hernia - 연세대학교 원주의과대학...
TRANSCRIPT
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의학과 4학년외과학강의
Hernia
KIM MYOUNG SOO M.D.
Department of Surgery Yonsei University Wonju College of Medicine
[email protected]://gs.yonsei.ac.kr
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학습목표
1.서혜부의해부학적구조를도시한다.(B) 2. 직접과간접서혜부탈장을비교설명한다.(B)3. 서혜부탈장의수술적치료원칙을설명한다.(A) 4. 서혜삼각(Hesselbach's striangle)을이루는해부학적구조를도시하고그의의를설명한다.(B)
5. 반흔탈장의원인, 발생예방법및치료에대하여기술한다.(A)6. 활주탈장(Sliding hernia)의정의와진단적특징을기술한다.(A)7. 희귀탈장을정의한다.(요부탈장(Lumbar hernia), 폐쇄막탈장(Obturator hernia), 좌골탈장(Sciatica hernia)).(B)
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Anatomical Information
(1) inguinal Cannal
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Anatomical Information
(2) Hesselbach’s Triangle
1:inguinal ligament2:Femoral a.3:inferior epigastric a.A: Indirect herniaB: Direct herniaC: Femoral hernia
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Diagnosis and DDx of Hernia
Symptoms bulge in the inguinal region. minor pain or vague discomfort associated with the groin bulge.parethesias related to irritation or compression of inguinal nerves by the hernia Extreme pain is unusual related with incarceration and intestinal vascular compromise
Physical exam.
Visual inspection of the groin - a loss of symmetry in the inguinal area or a discrete bulge. Valsalva's maneuver or cough accentuate the bulge
Fingertips on the abdominal wall over the inguinal region + repeat Valsalva's maneuver
Bulging from lateral wall indirect inguinalBulging from deep portion direct inguinalBulging below the inguinal ligament femoral hernia
Incarcerated hernia Gentle pressure on the hernial mass under theTrendelenburg's position + analgesic agents
Gangrenous bowel Rarely be reduced by manual reductionPatients should be followed for the development of peritoneal signs
Reduction en masse Reduction of the entire hernia sac with the intestine remaining incarcerated within the sac
Failure of manual reduction of incarcerated hernia
Immediate operation
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Incidence
Indirect inguinal hernia, 50%
Direct inguinal hernia, 24%
Ventral hernia, 10%
Femoral hernia, 3%Unusual hernia, 5-10%
Male >> Female=25% of males vs. only 2% of females will develop inguinal hernias
The most common hernia in males and females is the indirect inguinal hernia. Femoral hernias occur much more frequently in females than in males.. Right >> Left, why ? Time-internal of testicle descending
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Inguinal Hernia : Etiology
(1) congenital origins = The lack of obliteration of the processus vaginalis= indirect herniaRisk factors: Prematurity and low birth weight, Congenital
abnormalities such as pelvic deformities or exstrophy of the urinary bladder
(2) acquired origins = wear-and-tear stresses = direct herniaRisk factors : Straining to urinate or defecate, coughing, and
heavy lifting, Smoking
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Inguinal Hernia : Operation
“I know more than a hundred surgeons whom I would cheerfully allow to remove my gallbladder but only one to whom I should like to expose my inguinal canal.”(Sir Henage Ogilvie)
Natural course : Hernias do not resolve spontaneously or improve with time. Wearing a truss does not cure a hernia. Repair of a groin hernia can be planned electively unless incarceration
or strangulation is present.
Principles :
“High ligation of hernia sac + Posterior wall enforcement(reconstruction)”
Approach method : Anterior approach versus Preperitoneal approach (laparoscopic )
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Inguinal Hernia : Operation ; Bassini operation
Conjoin tendon – inguinal ligament
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Inguinal Hernia : Operation ; McVay operation
Conjoin tendon – Cooper’s ligament
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Inguinal Hernia : Operation ; Shouldish operation
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Inguinal Hernia : Operation ; Lichtenstein (tension-free)
Single layer mesh versus double layer meshOp.
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Inguinal Hernia : Operation ; Laparoscopic Hernia Repair -transabdominal preperitoneal(TAPP) repair
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Inguinal Hernia : Operation ; Laparoscopic Hernia Repair -totally extraperitoneal approach (TEPA)
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Femoral Hernia
below the inguinal ligament. more common in femalesrepaired using a standard Cooper's ligament (McVay) repair. incarceration is common – viability of bowel ???
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Umbilical Hernia
Congenital form - common in infantdelay operation until 5 years old
Acquired form - during adulthood, Pregnancy, ascites, acute
abdominal distention (e.g., intestinal obstruction)
Incarceration and strangulation are unusual but rupture can occur.
Treatment : Umbilical hernias can be repaired in a pants over vest manneror a simple transverse closure. Recurrence of umbilical hernias is extremely uncommon.
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Ventral(Incisional) Hernia
Inadequate healingPostoperative wound infection Postoperative pulmonary complicationsPostoperative hematoma
Excessive strainObesity, Advanced age, Malnutrition, Ascites, Peritoneal dialysis, Pregnancy
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Sliding Hernia
A sliding inguinal hernia is defined as one in which a viscus forms a portion of the wall of the hernia sac.
Common involved viscus : bowel(cecum; Rt side, sigmoid colon; Lt side )urinary bladder.
The primary danger associated with a sliding hernia is the failure to detect due to visceral component.
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Unusual Hernia(1) Epigastric Hernia (2) Richter's Hernia(3) Littre's Hernia (4) Spigelian Hernia (5) Obturator Hernia (6) Lumbar (Dorsal) Hernia (7) Sciatic Hernia (8) Perineal Hernia
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Unusual Hernia
(1) Epigastric Hernia (2) Richter's Hernia(3) Littre's Hernia (4) Spigelian Hernia (5) Obturator Hernia (6) Lumbar (Dorsal) Hernia (7) Sciatic Hernia (8) Perineal Hernia
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Complication after Hernioplasty
In adult patients, complication rates from open inguinal herniorrhaphyvary from 1% to 26%, with most reports ranging from 7% to 12%.
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Recurrence after Hernioplasty
Recurrence rates vary from less than 1% to 7% for indirect inguinal hernias, from 4% to 10% for direct inguinal hernias,from 1% to 7% for femoral hernias, and from 5% to 35% for recurrent hernia repair
Recurrence may result from technical failure,inadequate fascial strength, impaired wound healing, trauma, progressive weakening of surrounding tissues,
or tissue approximated under excessive tension.
Failure of high ligation and posterior wall reconstruction
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Thank You
Kim Myoung Soo M.D.
Department of SurgeryYonsei University Wonju College of Medicine