Inguinal hernia - AIIMS, Rishikesh
Transcript of Inguinal hernia - AIIMS, Rishikesh
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Inguinal hernia
DR SUDHIR KUMAR SINGH
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Epidemiology
• Inguinal hernia repair is one of the most commonly performed operation.
• Approximately 75% of abdominal wall hernias occur in the groin.
• Of inguinal hernia repairs, 90% are performed in men and 10% in women.
• The incidence of inguinal hernias in males has a bimodal distribution.
– Before the first year of age
– After age 40
• Approximately 70% of femoral hernia repairs are performed in women;however, inguinal hernias are five times more common than femoral hernias.
• The most common subtype of groin hernia in men and women is the indirectinguinal hernia
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Anatomy
• 4- to 6 cm-long
• Anterior portion of the pelvic
basin
• Spermatic cord:
– Three arteries
– Three veins
– Two nerves
– Pampiniform venous plexus
– Vas deferens
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Anatomy
• Anterior
– External oblique aponeurosis
• Lateral
– Internal oblique muscle
• Posterior
– Transversalis fascia and transversusabdominus muscle
• Superior
– Internal oblique muscle
• Inferior
– Inguinal ligament
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Anatomy
• Anterior
– External oblique aponeurosis
• Lateral
– Internal oblique muscle
• Posterior
– Transversalis fascia and transversusabdominus muscle
• Superior
– Internal oblique muscle
• Inferior
– inguinal ligament
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AnatomyOther structure :
• Iliopubic tract:
• An aponeurotic bandthat begins at theanterior superior iliacspine and inserts intoCooper’s ligament fromabove.
• lacunar ligament (ligament ofGimbernat)
• Cooper’s ligament (pectineal)
• Conjoined tendon
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AnatomyOther structure :
• Iliopubic tract:
An aponeurotic bandthat begins at theanterior superior iliacspine and inserts intoCooper’s ligament fromabove.
• lacunar ligament (ligament ofGimbernat)
• Cooper’s ligament (pectineal)
• Conjoined tendon
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HESSELBACH’STRIANGLE
• Medial aspect of Rectusabdominis muscle
• Inferior epigastric vessels
• Inguinal ligament
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Subtypes
• Direct hernia
• Indirect hernia
• Femoral hernia
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Direct hernia
Direct hernias protrudemedial to the inferiorepigastric vessels,within Hesselbach’striangle.
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Indirect hernias
Indirect herniasprotrude lateral to theinferior epigastricvessels, through thedeep inguinal ring.
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Femoral hernias
Femoral herniasprotrude through thesmall and inflexiblefemoral ring.
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Etiology
• Acquired:
the best-characterized riskfactor is weakness in theabdominal wall musculature
– Chronic obstructivepulmonary disease: direct
– increase intra-abdominalpressure
– decreased collagen fiberdensity in hernia patients
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Congenital
• The majority of pediatric hernias
• Patent processus vaginalis(PPV)
• The high incidence of indirectinguinal hernias in pretermbabies.
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DIAGNOSIS• History:
– Groin pain
– Extrainguinal symptoms such as a change in bowel habits or urinary symptoms
– Generalized pressure, localized sharp pain, and referred pain
– Pressure or heaviness in the groin , following prolonged activity
• Sharp pain tends to indicate an impinged nerve and may not be related to theextent of physical activity performed by the patient.
• Neurogenic pain may be referred to the scrotum,testicle, or inner thigh.
• Hernias will often increase in size and content over a protracted time.
• Patients will often reduce the hernia by pushing the contents back into theabdomen, thereby providing temporary relief.
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Physical Examination
• Ideally, the patient should be examined in a standing position toincrease intra-abdominal pressure, with the groin and scrotum fullyexposed.
• Inspection: an abnormal bulge along the groin or within the scrotum
• Palpation: advancing the index finger through the scrotum toward theexternal inguinal ring.
• Femoral hernias should be palpable below the inguinal ligament,lateral to the pubic tubercle.
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Imaging
• US:
– sensitivity of 86% and specificity of77%
• CT :
– sensitivity of 80% and specificity of
65%
• MRI:
– Sensitivity of 95% and specificity of96%
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TREATMENT
• Surgical repair is the definitive treatment of inguinal hernias
1. Surgical
2. Conservative
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Conservative Treatment
• When the patient’s medical condition confers an unacceptable level ofoperative risk, elective surgery should be deferred until the conditionresolves, and operations reserved for lifethreatening emergencies.
• A nonoperative strategy is safe for minimally symptomatic inguinalhernia patients, and it does not increase the risk of developing herniacomplications.
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Conservative Treatment
• Nonoperative inguinal herniatreatment targets pain, pressure,and protrusion of abdominalcontents in the symptomaticpatient population.
• Trusses externally
• not prevent complications
• Femoral inguinal hernia ⨯
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SURGICAL REPAIR
• All surgical repairs follow the same basic principles:
1. Reduction of the hernia content into the abdominal cavity.
2. Excision and closure of a peritoneal sac if present or replacing it deep to the muscles
3. Re-approximation of the walls of the neck of the hernia if possible
4. Permanent reinforcement of the abdominal wall defect with sutures or mesh.(i.e. Anatomical vs Prosthetic repair)
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SHOULDICE REPAIR
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LICHENSTEIN REPAIR i.e. MESH HERNIOPLASTY
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Laparascopic hernia repair
1. Trans abdominal Preperitoneal Procedure (TAPP)
2. Totally Extraperitoneal (TEP) Repair
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COMPLICATIONS
• Hernia Recurrence
• Pain
• Cord and Testes Injury
• Wound infection
• Seroma
• Hematoma
• Bladder injury
• Osteitis pubis
• Urinary retention
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THANKS