Surgery Marrow Pg 241-250 (GIT)

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Questions and Answers

What condition is characteristic of males with a high level of anomaly?

  • Rectovaginal fistula
  • Rectovesical fistula (correct)
  • Anal atresia
  • Anal stenosis

Females with a low anomaly commonly present with anorectal malformation.

False (B)

What is the first surgical step for managing a high anomaly in males?

Diverting colostomy

The surgery known as _____ is used to create an opening for the anal canal.

<p>PSARP</p> Signup and view all the answers

Match the following anomalies with their corresponding level:

<p>Anorectal agenesis = High Rectourethral fistula = Intermediate Anal atresia = Low Rectovaginal fistula = Intermediate</p> Signup and view all the answers

What is a primary advantage of using a cutting seton in the treatment of high fistula?

<p>Gradual cutting of the tract (B)</p> Signup and view all the answers

Complete prolapse is more commonly seen in children than in adults.

<p>False (B)</p> Signup and view all the answers

Which arteries provide blood supply to the liver, and in what percentage?

<p>Portal vein (80%), Hepatic artery (20%) (D)</p> Signup and view all the answers

What is the primary treatment method for the first episode of partial mucosal prolapse in children?

<p>Digital repositioning</p> Signup and view all the answers

Left Trisectorectomy involves segments 5 and 8.

<p>True (A)</p> Signup and view all the answers

A perforation through the rectal wall and epithelium seen in Crohn's disease is primarily treated with a ______ seton.

<p>draining</p> Signup and view all the answers

What is the primary function of the liver related to clotting factors?

<p>Synthesis of clotting factors</p> Signup and view all the answers

Match the type of prolapse with its characteristic:

<p>Partial Mucosal Prolapse = Involves only the mucosal layer and is common in children Complete Prolapse = Involves all layers and is primarily seen in adults Intussusception = Differential diagnosis for complete prolapse in children Thiersch wiring = A treatment option for recurrent partial prolapse</p> Signup and view all the answers

The primary imaging technique used to differentiate between HCC and metastases is ______.

<p>Triple phase CT (IOC)</p> Signup and view all the answers

Match the types of liver resections with their respective segments involved:

<p>Left Hepatectomy = 4A, 4B, 2, 3 Right Hepatectomy = 5, 6, 7, 8 Left Trisectorectomy = 4A, 4B, 2, 3 + 5, 8 Right Trisectorectomy = 5, 6, 7, 8 + 4A, 4B</p> Signup and view all the answers

What is the initial treatment for an amoebic liver abscess?

<p>Metronidazole (800 mg TID) (A)</p> Signup and view all the answers

A pyogenic liver abscess is commonly treated with metronidazole.

<p>False (B)</p> Signup and view all the answers

Name two indications for aspiration of a liver abscess.

<p>Abscess cavity &gt; 5 cm, pregnant patient</p> Signup and view all the answers

The common complication of an amoebic liver abscess includes _____ in the sub-diaphragmatic space.

<p>rupture</p> Signup and view all the answers

Match the treatments with the type of liver abscess:

<p>Amoebic liver abscess = Metronidazole and Diloxanide furoate Pyogenic liver abscess = Broad spectrum IV antibiotics Post-treatment care for amoebic abscess = Continue Rx for 2-3 weeks Aspiration procedure = Pigtail catheter</p> Signup and view all the answers

Which of the following organisms is primarily responsible for Hydatid Disease of the liver?

<p>Echinococcus granulosus (A)</p> Signup and view all the answers

The liver is the least commonly affected organ in Hydatid Disease.

<p>False (B)</p> Signup and view all the answers

What clinical feature is commonly associated with Hydatid Disease of the liver?

<p>Right hypochondrial pain</p> Signup and view all the answers

In the life cycle of Echinococcus granulosus, the definitive host is the ______.

<p>dog</p> Signup and view all the answers

What is the maximum score for severe encephalopathy in the Child-Turcotte-Pugh score?

<p>3 (A)</p> Signup and view all the answers

Bilirubin levels of 3.5 mg/dL receive a higher point score than levels between 2.8–3.5 mg/dL in the Child-Turcotte-Pugh score.

<p>True (A)</p> Signup and view all the answers

Match the WHO-IWGE classification with its corresponding description:

<p>CEI = Unilocular cyst, double line sign CEA = Multiseptate honeycomb cyst</p> Signup and view all the answers

What does the Child-Turcotte-Pugh score evaluate?

<p>Liver dysfunction</p> Signup and view all the answers

In the Child-Turcotte-Pugh score, ascites with a severe presentation is assigned _____ points.

<p>3</p> Signup and view all the answers

Match the following criteria with their corresponding points in the Child-Turcotte-Pugh score:

<p>Encephalopathy (None) = 0 Ascites (Severe) = 3 Bilirubin (2.8-3.5 mg/dL) = 2 Prothrombin time (severe) = 3</p> Signup and view all the answers

What is the most common organism responsible for pyogenic liver abscess?

<p><em>Escherichia coli</em> (D)</p> Signup and view all the answers

Amoebic liver abscess typically results in neutrophil-rich pus.

<p>False (B)</p> Signup and view all the answers

Which imaging technique is typically used for the evaluation of liver abscess?

<p>CECT (Computed tomography)</p> Signup and view all the answers

The predominant clinical feature of both amoebic and pyogenic liver abscess is _____ and fever.

<p>pain</p> Signup and view all the answers

Match the type of liver abscess with its characteristic:

<p>Amoebic Liver Abscess = Usually solitary, occurs via portal vein Pyogenic Liver Abscess = Can be solitary or multiple, polymicrobial Pus Characteristics of Amoebic Abscess = Anchovy sauce pus Pus Characteristics of Pyogenic Abscess = Neutrophil-rich pus</p> Signup and view all the answers

What is the most common complication after surgery related to the rectum and anal canal?

<p>Constipation (B)</p> Signup and view all the answers

Solitary Rectal Ulcer Syndrome (SRUS) typically presents with an ulcer located on the posterior wall of the rectum.

<p>False (B)</p> Signup and view all the answers

What investigation is considered the best for delineating anatomy in cases of anorectal malformation?

<p>MRI</p> Signup and view all the answers

In an invertogram, the presence of a gas shadow indicating a low anorectal malformation occurs when the distance between the metallic coin and gas shadow is less than _____ cm.

<p>2</p> Signup and view all the answers

Match the following associated abnormalities with the VACTERL syndrome:

<p>V = Vertebral defects A = Anorectal malformations C = Cardiac abnormalities L = Limb abnormalities</p> Signup and view all the answers

Which segment of the liver is independent and drains bile into both the left and right lobes?

<p>Segment 1 (D)</p> Signup and view all the answers

Which of the following is an advantage of perineal procedures for complete prolapse?

<p>Easier to perform (A)</p> Signup and view all the answers

Segment 1 undergoes hypertrophy in Budd Chiari syndrome.

<p>True (A)</p> Signup and view all the answers

What are the three major fissures of the liver?

<p>Right hepatic vein, left hepatic vein, middle hepatic vein</p> Signup and view all the answers

Abdominal procedures for complete prolapse are more likely to result in recurrence than perineal procedures.

<p>True (A)</p> Signup and view all the answers

The liver is divided into _____ functional segments.

<p>8</p> Signup and view all the answers

Name one example of a perineal procedure used for complete prolapse.

<p>Thiersch wiring</p> Signup and view all the answers

Match the following segments with their respective characteristics:

<p>Segment 1 = Caudate lobe, drains bile into both lobes Spigelian lobe = Part of Segment 1 Left medial segment = Located in the left lobe of the liver Segment 9 = Subdivision of Segment 1</p> Signup and view all the answers

The surgical technique that involves placing mesh between the rectum and sacrum is known as _____ .

<p>rectopexy</p> Signup and view all the answers

Match the surgical procedures with their correct descriptions:

<p>Thiersch wiring = Digitally reduces prolapse and closes with a purse-string suture Delorme repair = Repair of mucosa and prolapse Altemeier repair = Cutting the redundant sigmoid to prevent recurrence Rectopexy = Placing mesh between the rectum and sacrum</p> Signup and view all the answers

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Study Notes

Anorectal Malformations

  • Males: Fecal matter passed during urination, recurrent UTI.
  • Females: Anorectal malformation.
  • Anomaly Levels:
    • High (Males): Anorectal agenesis, rectovesical fistula.
    • High (Females): Rectovaginal fistula.
    • Intermediate (Males): Rectourethral fistula.
    • Intermediate (Females): Rectovestibular fistula, Rectovaginal fistula.
    • Low/Miscellaneous (Females): Anal atresia, anal stenosis, persistent cloacal anomaly.
  • Management:
    • Low Anomaly: Definitive surgery.
    • High Anomaly: Diverting colostomy followed by definitive surgery.
  • Definitive Surgery: Posterior Sagittal Anorectoplasty (PSARP)- creating an anal canal opening.

Brisbane Classification of Liver Resection

  • Left Hepatectomy: Segments 4A, 4B, 2, 3.
  • Right Hepatectomy: Segments 5, 6, 7, 8.
  • Left Trisectorectomy (Extended Left Hepatectomy): Segments 4A, 4B, 2, 3 + 5, 8.
  • Right Trisectorectomy (Extended Right Hepatectomy): Segments 5, 6, 7, 8 + 4A, 4B.

Liver Anatomy and Blood Supply

  • Dual Blood Supply: Portal vein (80%), Hepatic artery (20%).
  • Right Hepatic Artery: Larger, supplies majority of the liver.
  • Liver Pedicle: Portal vein (posterior), Common Bile Duct (right), Hepatic Artery (left). This arrangement resembles "Mickey Mouse Sign".

Liver Functions

  • Maintaining core body temperature.
  • pH balance and correction of acidosis.
  • Synthesis of clotting factors.
  • Glucose metabolism.
  • Bilirubin formation from Hb degradation.
  • Drug & hormone metabolism and excretion.
  • Removal of endotoxins and foreign antigens.

Liver Dysfunction and Investigations

  • Causes of Encephalopathy: Liver Dysfunction.
  • Investigations:
    • Liver Function Tests (LFT)
      • Liver Enzymes
      • Clotting Factor Tests
    • Ultrasound (USG) abdomen
    • Triple Phase CT (IOC)
      • Differentiate between Hepatocellular Carcinoma (HCC) and Metastases (mets).

Rectal Prolapse

  • High Fistula Treatment: Seton - Thread inserted, tightened over intervals.

    • Draining Seton: Crohn's disease.
    • Cutting Seton: High fistula.
  • Rectal Prolapse Types:

    • Partial Mucosal Prolapse (Children): Mucosal layer prolapses, incomplete sacral curve.
    • Complete Prolapse (Adults): All layers prolapse, weak pelvic floor.
    • Complete Prolapse in Children: Different diagnosis (Intussusception).
  • Management of Prolapse:

    • Partial: Digital repositioning for first episode, Thiersch wiring/sclerotherapy if recurrent.
    • Complete: Requires specific surgical interventions (e.g., rectopexy).

Liver Abscess Treatment

  • Amoebic Liver Abscess Treatment:
    • Tissue Amoebicide: Metronidazole (Double Strength)
    • Duration: 4-5 days.
    • If not responding: Aspiration of pus using USG/CT guidance.
    • Other indications for Aspiration: Abscess cavity > 5 cm, pregnant patient, impending rupture, left lobe abscess.
    • Continue medication for 2-3 weeks: Luminal Amoebicide (Diloxanide furoate).
    • Pigtail Catheter: Used for aspiration of pus in abdominal cavity (USG/CT guidance).
  • Pyogenic Liver Abscess Treatment:
    • IV Antibiotics: Broad spectrum.
    • Aspiration: Low threshold (If patient not responding, aspirate quickly).
  • Complications of Amoebic Liver Abscess:
    • Rupture: Sub-diaphragmatic space (most common), pleural cavity, peritoneal cavity, pericardial cavity.
    • Secondary Infection

Liver Dysfunction Scores

  • Child-Turcotte-Pugh Score (CTP Score): Evaluates liver dysfunction.
    • Encephalopathy: None, 3 (Mild/Moderate).
    • Ascites: None, 3 (Mild/Moderate).
    • Bilirubin (mg/dL): <2.8, 2.8-3.5, >3.5.
    • Prothrombin Time (s) or INR:

Liver Abscess: Types and Clinical Features

  • Amoebic Liver Abscess
    • Organism: Entamoeba histolytica.
    • Route of Spread: Flask-shaped ulcers in the gut -> portal vein -> Bare area (segment 7).
    • Number of Abscesses: Usually solitary.
    • Labs: Increased PT/INR, positive serology for Entamoeba.
    • Clinical features: Pain, fever, severe illness, jaundice.
    • Epidemiology: Males > Females.
    • Pus: "Anchovy sauce pus" (lacks neutrophils).
  • Pyogenic Liver Abscess
    • Organism: Polymicrobial (40%), most common: E. coli, Klebsiella (Asia), S. aureus (children with CGD).
    • Number of Abscesses: Solitary or multiple
    • Labs: Increased ALP, PT/INR, bilirubin.
    • Clinical Features: Pain, fever, severe illness, jaundice.
    • Epidemiology: Males > Females, immunocompromised individuals.
    • Pus: Neutrophil-rich.
  • Management and Complications
    • IOC: CECT abdomen.
    • Features: Abscess cavity with hypoechoic liquefied pus.
    • Resolution: Radiological resolution takes months post-treatment.

Hydatid Disease of the Liver

  • Organism: Echinococcus granulosus, E. multilocularis (malignant hydatid).
  • Definitive host: Dog.
  • Intermediate host: Sheep.
  • Accidental intermediate host: Man, male = female.
  • Organs affected: Liver (most common), lungs, kidneys, spleen.
  • Clinical features: Asymptomatic (majority), Right hypochondrial pain, hepatomegaly.
  • Gross anatomy: Pearly white cyst.
  • Classification:
    • WHO-IWGE 2001: CEI, CEA.
    • Gharbi 1981: Type I, Type III.
    • Stage: Active.
    • CT Image: Differentiate between unilocular and multiseptate cysts.

Rectum and Anal Canal

  • Complication of Surgery: Constipation (most common), hemorrhage, recurrence, nerve injury, fistula, bladder dysfunction, retrograde ejaculation.

Solitary Rectal Ulcer Syndrome (SRUS)

  • Location: Ulcer in anterior wall of rectum, 3-10 cm from anal verge.
  • Pathology: Ulcer → Intussusception/Prolapse.
  • Histopathology: Fibromuscular obliteration of lamina propria.
  • Management: STARR (Stapled Transanal Rectal Resection of Intussusception).

Anorectal Malformation

  • Definition: Absence of normal anal opening.
  • Associated Abnormalities: VACTERL (Vertebral defects, Tracheo-esophageal atresia/fistula, Anorectal malformations, Renal, Cardiac abnormalities, Limb abnormalities).
  • Investigation:
    • MRI: Best for delineating anatomy.
    • Invertogram: Done after 24 hours, metallic coin placed at proposed site of anal opening.
      • Low Anorectal Malformation: < 2 cm between coin and gas shadow.
      • High Anorectal Malformation: > 2 cm between coin and gas shadow.

Liver - Part 1

  • Functional Anatomy (Couinaud): Divided into 8 functional segments based on portal vein and hepatic vein.
    • Sectors: Right posterior, right anterior, left medial, left lateral.
    • Major Fissures: Right hepatic vein, left hepatic vein, middle hepatic vein.
    • Minor Fissures: Right portal vein, left portal vein, fissure of Ganz.
  • Segment 1: Caudate lobe (posterior to left of IVC), independent segment, drains bile into both lobes, receives blood from both lobes, direct venous drainage into IVC, undergoes hypertrophy in Budd Chiari Syndrome.
    • Subdivisions: Spigelian lobe and segment 9.

Surgical Management of Complete Prolapse

  • Perineal Procedures: Easier, less complications, less recurrence, suitable for frail patients.
    • Thiersch Wiring: Digitally reduce prolapse, close with purse-string suture.
    • Delorme Repair: Repair of mucosa and prolapse.
    • Altemeier Repair (Perineal rectosigmoidectomy): Redundant sigmoid cut to prevent recurrence.
  • Abdominal Procedures: More difficult, more operative complications, more recurrence, suitable for young, fit patients.
    • Rectopexy: Mesh placed between rectum and sacrum.
    • Well's Repair: Ripstein Repair, Frykman Goldberg Resection.

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