SPLEEN 1.2 Flashcards

1
Q

What are some common infections that increase the risk for spontaneous splenic rupture in immunocompromised patients or those with a history of IV drug abuse?

A

Infectious mononucleosis, malaria, Listeria infection, fungal infections, Dengue, Q fever, lymphoma, angiosarcoma, amyloidosis, and pregnancy.

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2
Q

How does splenic infiltration lead to a risk of spontaneous splenic rupture?

A

Infiltration of the splenic parenchyma leads to a thin capsule, increasing the risk of rupture.

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3
Q

What are the common organisms involved in splenic abscesses?

A

Aerobes such as Streptococci and Escherichia coli.

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4
Q

How do splenic abscesses present clinically?

A

Fever, left upper quadrant pain, leukocytosis, and splenomegaly.

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5
Q

What is the first-line diagnostic tool for detecting splenic abscesses?

A

Ultrasound or CT scan.

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6
Q

How long is the typical antibiotic treatment for a splenic abscess?

A

At least 14 days.

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7
Q

What is the primary surgical treatment for splenic abscesses in unstable patients?

A

Splenectomy.

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8
Q

What is the difference between a parasitic cyst and a pseudocyst in the spleen?

A

A parasitic cyst, typically from Echinococcus species, has an epithelial lining, while a pseudocyst is a result of trauma and lacks an epithelial lining.

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9
Q

How is a symptomatic parasitic cyst in the spleen treated?

A

Symptomatic parasitic cysts are treated with splenectomy while avoiding spillage of cyst content to prevent anaphylactic shock.

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10
Q

What is the most common cause of non-parasitic cysts in the spleen?

A

Dermoid, epidermoid, and epithelial cysts.

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11
Q

How are non-parasitic splenic cysts managed if symptomatic?

A

Symptomatic non-parasitic cysts can be treated laparoscopically or surgically depending on the size, with excision and splenic preservation for small cysts.

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12
Q

What is the mechanism of splenic artery aneurysms?

A

Splenic artery aneurysms arise from the middle to distal portion of the splenic artery, often due to trauma or other vascular abnormalities.

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13
Q

What are the indications for treating a splenic artery aneurysm?

A

Presence of symptoms, pregnancy, intention to become pregnant, and presence of pseudoaneurysms with inflammatory processes.

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14
Q

What is the management approach for a mid-splenic artery aneurysm?

A

Resection or ligation of the aneurysm, and splenectomy if the splenic artery is ligated.

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15
Q

What is the cause of splenomegaly in portal hypertension?

A

Portal hypertension due to liver cirrhosis leads to splenomegaly and splenic congestion, causing sequestration and destruction of circulating cells in the spleen.

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16
Q

How is sinistral hypertension, secondary to splenic vein thrombosis, treated?

A

Sinistral hypertension is curable with splenectomy.

17
Q

What are the components of Felty’s syndrome?

A

Felty’s syndrome is characterized by rheumatoid arthritis, splenomegaly, and neutropenia.

18
Q

What is the primary treatment for Felty’s syndrome?

A

Splenectomy and treatment for the underlying rheumatoid arthritis.

19
Q

What causes a wandering spleen?

A

A wandering spleen is caused by congenital problems, leading to a spleen that ‘floats’ inside the abdominal cavity without attachment to adjacent viscera.

20
Q

What complication can arise from a wandering spleen?

A

Splenic torsion and infarction, leading to severe abdominal pain and the need for splenopexy or splenectomy.

21
Q

What are the key preparations for a patient undergoing splenectomy?

A

Vaccination against pneumococcus, meningococcus, and Haemophilus, transfusion for anemic patients, and availability of cross-matched blood.

22
Q

How should an anemic patient be prepared before splenectomy?

A

Anemic patients should be transfused to a hemoglobin level of 10 g/dL before surgery.

23
Q

How are DVTs prevented in splenectomy patients?

A

DVT prophylaxis includes the use of sequential compression devices and subcutaneous heparin administration.

24
Q

What is the most common indication for open splenectomy (OS)?

A

Traumatic rupture of the spleen.

25
Q

Describe the surgical position for open splenectomy in traumatic cases.

A

A midline incision is typically used for traumatic cases, with exploratory laparotomy (ex-lap) done for rupture or massive splenomegaly.

26
Q

What is the procedure for an open splenectomy?

A

The blood vessels are ligated first, followed by removal of the ligaments, and the spleen is mobilized by dividing the ligamentous attachments.

27
Q

How is laparoscopic splenectomy typically performed?

A

Laparoscopic splenectomy is done for normal-sized spleens, using a few trocars for access and ensuring the spleen is extracted piecemeal with minimal spillage.

28
Q

What are the indications for partial splenectomy?

A

Partial splenectomy is indicated for children, lipid storage disorders (like Gaucher’s disease), and some blunt or penetrating splenic injuries.

29
Q

What are the common short-term complications after splenectomy?

A

Short-term complications include overwhelming postoperative infection (OPSI), pulmonary infection, deep vein thrombosis, and spleno-portal thrombosis.

30
Q

What is the most common fatal infection after splenectomy?

A

Overwhelming postoperative infection (OPSI) caused by encapsulated bacteria, particularly Streptococcus pneumoniae.

31
Q

What are the most common vaccines administered before splenectomy?

A

Pneumococcal, Haemophilus, and Meningococcal vaccines are given before splenectomy.

32
Q

What is the recommended antibiotic prophylaxis for children after splenectomy?

A

A single daily dose of penicillin or amoxicillin is given for the first 2 years after splenectomy.