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Atlas of General Surgical Techniques (Courtney M. Townsend Jr., B. Mark Evers)

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C H A P T E R 52 • Splenectomy/Splenic Repair

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The spleen contributes to immune competence in a variety of ways, including opsonization and phagocytosis. Asplenic patients are at increased risk of overwhelming postsplenectomy infection from encapsulated bacteria, such as Streptococcus pneumoniae, Neisseria meningitidis, and H. influenzae. Following splenectomy patients should be counseled regarding the increased susceptibility to infections and vaccinated against these potential infections with Prevnar, Menactra, and ActHIB before discharge from the hospital.

SELECTED REFERENCES

1. Starnes S, Klein P, Magagna L, Pomerantz R: Computed tomographic grading is useful in the selection of patients for nonoperative management of blunt injury to the spleen. Am Surg 1998;64:743-648;748-749 [discussion].

2. Cocanour CS, Moore FA, Ware DN, et al: Delayed complications of nonoperative management of blunt adult splenic trauma. Arch Surg 1998;133:619-624;624-625 [discussion].

3. Ochsner MG: Factors of failure for nonoperative management of blunt liver and splenic injuries. World J Surg 2001;25:1393-1396.

C H A P TE R53

PORT PLACEMENT FOR COLON OPERATIONS

Michael D. Trahan

STEP 1: SURGICAL ANATOMY

It is useful to review the anatomy of the abdominal musculature when planning a laparoscopic operation.

STEP 2: PREOPERATIVE CONSIDERATIONS

Laparoscopic colonic surgery is usually performed with the patient in the modified lithotomy position. The lower extremities should not be flexed so much as to interfere with movement of the long laparoscopic instruments (Figure 53-1). When tucking the upper extremities, protect the hand from entrapment in the movement of the bed surfaces.

FIGURE 53–1

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C H A P T E R 53 • Port Placement for Colon Operations

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The principle of triangulation of the operative target should be kept in mind as the plan for port placement is developed. In general, the surgeon should position the operative target between himself or herself and the monitor screen. For a sigmoid colectomy, the surgeon stands at the patient’s right and the monitor is at the foot (Figure 53-2). The surgeon should move from the patient’s right to the left or between the legs as needed to comfortably reach the target.

An optically guided bladeless trocar is the best selection for the initial port to be inserted. The optical guidance is provided by an end-viewing laparoscope. This port is usually placed at or near the umbilicus but may be placed elsewhere in patients who are expected to have midline adhesions.

The size, selection, and number of the remaining ports are subject to much variability depending on the planned procedure, size and type of anticipated instruments, patient’s body habitus, and surgeon’s preference.

Anesthetist

Monitor

source

Light

Camera

Insufflator

Second assistant

Surgeon

Electrosurgical unit

First assistant

Surgical technician

Monitorrecorder

Video

Irrigation

FIGURE 53–2

6 1 4 S E C T I O N I X • C O L O N

STEP 3: OPERATIVE STEPS

1.INCISION

The site of each incision should be preemptively anesthetized with a local anesthetic injection to include the skin and peritoneum.

The incisions should be just large enough to accommodate the trocar without tension on the skin as the trocar is inserted.

2.DISSECTION

Five 10to 12-mm ports are used. One port is near the umbilicus. One port is in each of the abdominal quadrants lateral to the rectus muscles (Figure 53-3).

A 10to 12-mm port is near the umbilicus. A 5- or 10-mm port is in the left lower quadrant. A 10to 12-mm port is in right lower quadrant. A 5- or 10-mm port is in the left upper quadrant (Figure 53-4).

A 10to 12-mm port is near the umbilicus. A 10to 12-mm port is in the right lower quadrant. A 5- or 10-mm port is in the right upper quadrant. A 5- or 10-mm port is in the left lower quadrant (Figure 53-5).

Four 10to 12-mm ports are used. One port is near the umbilicus. One port is in each of the mid-clavicular lines at the level of the umbilicus. One port is in the right mid-clavicular line, 10 to 15 cm inferior to the other (Figure 53-6).

3.CLOSING

Bladeless trocar port sites up to and including 12 mm do not typically need to be closed at the fascial level.

Transabdominal laparoscopic suture passers provide a quick and relatively simple way to close small abdominal fascial incisions, especially through a deep abdominal pannus.

If no suture passer is available, larger port site fascial defects should be closed with transabdominal suture externally after appropriate retraction of the skin and subcutaneous tissue.

C H A P T E R 53 • Port Placement for Colon Operations

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FIGURE 53–3

FIGURE 53–4

FIGURE 53–5

FIGURE 53–6

6 1 6 S E C T I O N I X • C O L O N

STEP 4: POSTOPERATIVE CONSIDERATIONS

Postoperative care is provided consistent with the primary disease process and extent of the operation.

STEP 5: PEARLS AND PITFALLS

The initial optical entry should be made away from sites expected to have adhesions. In a patient with extensive prior surgical history, the open insertion technique may be preferred.

Each subsequent trocar entry should be made with direct internal visualization, avoiding the epigastric vessels and the large subcutaneous vessels identified by transillumination.

One should not hesitate to use additional trocars if needed to improve exposure and the safety of the operation.

Hand-assisted laparoscopic surgery (HALS) is the approach favored by many. The hand port should be located at the proposed site of specimen extraction.

SELECTED REFERENCES

1. Ludwig KA, Lee WY: Laparoscopic partial colectomy. In Soper NJ, Swanstrom LL, Eubanks WS (eds): Mastery of Endoscopic and Laparoscopic Surgery, 2nd ed. Philadelphia, Lippincott Williams & Wilkins, 2005, pp 436-448.

2. Baig MK, Wexner SD: Laparoscopic-assisted abdominoperineal resection. In Soper NJ, Swanstrom LL, Eubanks WS (eds): Mastery of Endoscopic and Laparoscopic Surgery, 2nd ed. Philadelphia, Lippincott Williams & Wilkins, 2005, pp 449-458.

3.Fowler DL, Sonoda TS, McGinty J: Laparoscopic subtotal and total colectomy. In Soper NJ, Swanstrom LL and Eubanks WS (eds): Mastery of Endoscopic and Laparoscopic Surgery, 2nd ed. Philadelphia, Lippincott Williams & Wilkins, 2005, pp 459-469.

CH A P T E R 54

DIVERTING END COLOSTOMY

WITH MUCOUS FISTULA OR

HARTMANN’S POUCH

Dennis C. Gore

STEP 1: SURGICAL ANATOMY

Normal-appearing colon (usually sigmoid/descending colon) proximal to diseased bowel

STEP 2: PREOPERATIVE CONSIDERATIONS

Indications:

Relief of colonic obstruction

Complete diversion of fecal stream

Anesthesia: general

Position: supine

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6 1 8 S E C T I O N I X • C O L O N

STEP 3: OPERATIVE STEPS

1.INCISION

Midline laparotomy (Figure 54-1)

2.DISSECTION

Mobilize the segment of colon chosen for colostomy, usually just proximal to the obstruction or other diseased lesion. For the transverse colon, this entails incising the attachments to the omentum with either electrocautery or scissors.

For sigmoid, descending, or ascending colon, incise the avascular lateral ligaments to the peritoneum.

With blunt forceps dissection, create an opening through the mesentery. Place a gastrointestinal anastomosis (GIA) stapler through this aperture and engage the stapler (Figure 54-2).

Incision

FIGURE 54–1