21 Body Wall Surgical Indications and Techniques Part 1

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Questions and Answers

During an umbilical surgery in a calf, if the surgeon identifies the urachus, to which anatomical structure should they expect it to be connected?

  • Descending aorta
  • Apex of the bladder (correct)
  • External abdominal wall
  • Liver

A calf presents with a protruding umbilicus, but upon examination, there's no palpable hernia or distinct 'rent'. Which of the following is the MOST likely classification of this umbilical issue?

  • Simple hernia
  • Uncomplicated umbilical cord remnant
  • Complicated hernia
  • Infection/abscessation (correct)

In cases of complicated umbilical hernias, which characteristic is MOST indicative of a poor prognosis and increased surgical complexity?

  • Presence of an enterocutaneous fistulation
  • Hernia difficult to reduce with poor definition of 'rent' (correct)
  • Easily reducible hernia with a distinct 'rent'
  • Involvement of the abomasum within the hernia

During the physical examination of a calf with a suspected umbilical issue, what specific abdominal palpation technique aids in evaluating the extent of the abnormality, especially in smaller calves?

<p>&quot;Deep&quot; palpation with the calf laid on its side (D)</p> Signup and view all the answers

In an open umbilical hernia repair, which of the following is a critical step in preventing recurrence, particularly in cases with omphalophlebitis?

<p>Omphalectomy or marsupialization if the infection enters the liver (C)</p> Signup and view all the answers

Desirable characteristics that the body wall should have, when closing, include all of the following EXCEPT:

<p>Non-absorbable suture (A)</p> Signup and view all the answers

When performing an open umbilical hernia repair on a calf, and the decision is made to resect the urachus, what anatomical landmark dictates the extent of the resection?

<p>The apex of the bladder (A)</p> Signup and view all the answers

During an umbilical hernia repair, you identify omphaloarteritis. What is the recommended surgical approach to address this specific condition?

<p>Resection of the affected arteries as much as possible along their course (D)</p> Signup and view all the answers

A calf presents with signs of septicemia secondary to an infected umbilical hernia. Besides surgical intervention and antibiotics, which of the following additional steps is most crucial in managing this patient?

<p>Aggressive fluid therapy and cardiovascular support (A)</p> Signup and view all the answers

When presented with a calf diagnosed with a simple umbilical hernia characterized by a distinct 'rent', what factor is most uncertain and should be discussed with the owner before considering surgical intervention?

<p>Heritability of the condition (B)</p> Signup and view all the answers

During the surgical exploration of an umbilical hernia in a calf, the surgeon discovers an enterocutaneous fistulation. How does this finding MOST significantly influence the surgical plan?

<p>It necessitates en bloc resection of the affected bowel segment and skin (D)</p> Signup and view all the answers

Which of the following historical findings would MOST strongly suggest that a calf's umbilical swelling is due to an abscess rather than a simple hernia?

<p>The swelling is warm to the touch and the calf has a fever (D)</p> Signup and view all the answers

When performing an open umbilical hernia repair in a calf, what is the primary rationale for removing the umbilical ring down to normal body wall tissue?

<p>To ensure complete removal of any infected or compromised tissue (A)</p> Signup and view all the answers

What is the MOST significant risk associated with the use of hernia clamps in treating umbilical hernias?

<p>They can lead to infection and tetanus (A)</p> Signup and view all the answers

In a scenario where a calf presents with an umbilical mass, and ultrasound reveals the presence of free fluid with hyperechoic debris within the mass. What is the most appropriate interpretation of these findings?

<p>Umbilical abscess (D)</p> Signup and view all the answers

When closing the body wall following an open umbilical hernia repair in a calf, what is the primary purpose of incorporating the subcutaneous layer into the closure?

<p>To eliminate dead space and prevent seroma formation (D)</p> Signup and view all the answers

In the context of umbilical anatomy, the umbilical arteries in a calf ultimately connect the umbilicus to which major vessel?

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

What is the PRIMARY indication for performing an open umbilical hernia repair rather than a closed repair in a calf?

<p>Concurrent infection or abscessation is present (D)</p> Signup and view all the answers

Which of the following represents the MOST common visceral component found within an umbilical hernia in a calf?

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

You perform surgical exploration of an umbilical hernia and the tissues are devitalized. Which of the following is MOST likely?

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

During an umbilical hernia repair, you utilize the "Vest Over Pants" technique. What is the primary goal of this suturing method?

<p>Provide tension relief and create a strong layered closure (C)</p> Signup and view all the answers

A calf undergoes umbilical hernia repair. Postoperatively, the incision site develops significant seroma formation despite appropriate surgical technique and drainage. What is the MOST likely underlying cause?

<p>Inadequate subcutaneous closure during the initial surgery (C)</p> Signup and view all the answers

A 2-week-old calf presents with a painful, warm swelling at the umbilicus. Palpation reveals a fluid-filled mass that does not reduce with pressure. The calf is febrile and depressed. Which of the following is the MOST appropriate next diagnostic step?

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

What is the anatomical significance of the lateral ligaments of the bladder in relation to the umbilical structures?

<p>Umbilical arteries are enclosed within them (A)</p> Signup and view all the answers

Upon physical examination of a calf with an umbilical hernia, you note that the umbilicus feels firm and 'rope-like' upon palpation. What does this finding suggest?

<p>A complicated hernia with potential infection in the umbilical structures (C)</p> Signup and view all the answers

During an open umbilical hernia repair in a young calf, post-operative incisional infection is noted. Which suture pattern would be LEAST appropriate for body wall closure in this instance?

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

A dairy farmer calls you to examine a group of calves. Several calves have umbilical swellings. When discussing the case with the farmer, all following are important historical questions, EXCEPT:

<p>Is the calf still nursing from its mother? (B)</p> Signup and view all the answers

What is the MOST important consideration when using absorbable suture for closing the body wall during umbilical hernia repair?

<p>Taking wide bites into healthy tissue (C)</p> Signup and view all the answers

What is the main concern following umbilical hernia repair?

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

Umbilical hernias can be made up of all of the following EXCEPT which choice?

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

What is the first step to performing a physical exam on a calf that presents with an umbilical mass?

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

With complicated hernias, what would you expect to see during assessment?

<p>Difficult to reduce (B)</p> Signup and view all the answers

How does a surgeon perform a closed Umbilical Hernia Surgery?

<p>Inverting hernia ring (C)</p> Signup and view all the answers

Flashcards

Umbilicus

Structures external to the abdominal wall.

Urachus

Connects the umbilicus to the apex of the bladder.

Umbilical Arteries

Runs from the umbilicus to the descending aorta.

Umbilical Vein

Connects the umbilicus to the liver.

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Infected Umbilicus

Umbilical abscess or infection of umbilical structures, Chronic omphalitis.

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Simple Hernia

Weakened abdominal wall at umbilicus.

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Complicated Hernia

Infected umbilical hernia with sepsis. More severe and hard to repair than a simple hernia.

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Hernia

Hernia sac of peritoneum.

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Viscera in Hernia

Abomasum most common but may contain rumen or small bowel.

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Abscess

Always have a high index of suspicion.

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Closed Hernia Surgery

Inverting hernia ring to close it.

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Open Hernia Surgery

Removal of the structure and infected tissues.

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Urachus Resection

Resect to apex of bladder.

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Omphaloarteritis Resection

Resect as much tissue as possible.

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Omphalophlebitis

Omphalectomy or marsupialize if enters liver.

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Body Wall Closure

Suture with wide bites of healthy tissue.

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Near...Far...Far...Near

Tension relieving suture pattern.

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Subcutaneous Closure

Subcutaneous layer decreases dead space.

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Study Notes

Umbilical Surgery

  • Umbilical surgery is performed on cattle, including calves.

What's Involved (Anatomy)

  • Umbilicus refers to the "umbilical cord" structures external to the abdominal wall.
  • Urachus connects the umbilicus to the apex of the bladder.
  • Umbilical Arteries connect the umbilicus to the descending aorta, forming the lateral ligaments of the bladder.
  • Umbilical Vein connects the umbilicus to the liver.

Umbilical Disease: Classification

  • Infection involves umbilical abscess or abscessation of any/all structures.
  • A protruding umbilicus may or may not be seen.
  • Chronic omphalitis often equates to "joint ill"/"naval ill".
  • Simple Hernia involves a weakened abdominal wall.
    • Heritability is a factor.
    • Easily reduced, with a very distinct "rent".
  • Complicated Hernia is an infected hernia, potentially with sepsis.
    • Hernia is difficult to reduce, with poor definition of "rent".

Umbilical Hernias

  • A hernia is composed of a hernia "sac" and/or peritoneum.
  • Viscera may be present, with the abomasum being most common.
    • Rumen or small bowel can also be present.
    • Strangulation is rare, but devitalization can easily occur.
    • Enterocutaneous fistulation can occur.
  • Abscesses should always be suspected.

Physical Examination

  • History is an important component.
  • Attitude and TPR (temperature, pulse, respiration) should be assessed.
  • Assess if the hernia is reducible and examine the hernia ring.
  • Examine the umbilicus for softness, if it feels "rope-like", and pain.
  • Perform deep palpation of the abdomen.
    • Small calves can be laid on their side to facilitate this.
  • Ultrasound can be used.

Treating Umbilical Hernias

  • Medical treatment may be an option.
  • Hernia clamps can be used

Umbilical Hernia Surgery

  • Closed technique inverts the hernia ring.
  • Open technique involves removal of the umbilicus, sac, rent, and all "persistent" or infected structures.
    • Urachus: resect to include the apex of the bladder.
    • Omphaloarteritis: resect as much as possible.
    • Omphalophlebitis: perform omphalectomy or marsupialize if it enters the liver.
    • Remove the ring to normal body wall tissue.

Closing the body wall

  • Use ABSORBABLE suture.
    • Take wide bites of healthy body wall/linea.
    • Use interrupted or continuous interrupted sutures.
    • Use "Near...Far...Far...Near" tension-relieving suture patterns.
    • "Vest Over Pants" technique can be used.
    • Horizontal mattress sutures can also be used.
  • Suture the subcutaneous layer to decrease dead space.
  • Use non-absorbable sutures on the skin.

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