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362 Atlas of Gastrointestinal Surgery: Spleen
The sequence of events for managing a massively enlarged spleen that has been outlined above is what we generally follow. With a massively enlarged spleen, however, the order of these steps may need to be changed. One obviously does that part of the dissection that is the easiest at the time. Even though these massively enlarged spleens are often peritoneal­ized and may be easily delivered into the wound, this may not be the case and the order of the dissection may need to be modified.
Even though the risk of massive hemorrhage may be more substantial from a massively enlarged spleen than a normal­sized spleen, because of the peritonealization, a splenectomy may actually be easier under these circumstances. Because inadvertent and unrecognized injury to the tail of the pancreas may occur during splenectomy, particularly when the spleen is massively enlarged, drainage of the tail of the pancreas with a closed suction Silastic drain is recommended (9). Each patient undergoing splenectomy should obviously be vaccinated against encapsulated bacterial organisms.
Splenic a. and v.
Liver
Stomach
9
Tail of pancreas
Management of Splenic Trauma by Splenorrhaphy
Operative Indications:
In the past, splenic injuries, whether operative or from blunt or penetrating trauma, were routinely treated with splenecto­my. Even minor capsular tears often resulted in splenectomy to eliminate the presumed danger of subsequent hemorrhage. But experience has demonstrated that splenectomy generally is not necessary in these circumstances. The spleen clearly plays a role in the defense against a variety of encapsulated bacterial organisms. Today, every reasonable effort is made to pre­serve the spleen, and with many injuries it is generally possible. The spleen plays a more important role in infants and young children and is less important as the individual grows older. In virtually all patients, however, a reasonable attempt to pre­serve the spleen and avoid splenectomy is probably appropriate. This not only preserves the role that the spleen plays in fighting infection with encapsulated organisms, but it also eliminates the morbidity that can result from splenectomy. The morbidity of splenectomy, which includes injury to the tail of the pancreas, hemorrhage, and abscess formation, is virtual­ly nonexistent if an injured spleen is successfully repaired. The feared complication of late splenic rebleeding is almost never seen. Repair of a splenic injury should not be attempted in the presence of other serious organ injuries or if the patient is unstable. In addition, one should not persist if initial efforts have not been completely successful. But in most instances in a stable patient with only splenic trauma, an effort should be made to repair the spleen and avoid splenectomy.
Operative Technique:
Most patients with abdominal trauma are explored through a long midline incision. Wide exposure of the abdomen is required. The entire abdomen should be careful­ly explored to assess all injuries. In the instance demonstrated here, only splenic trau­ma is present. In attempting splenic repair, excellent exposure is absolutely neces­sary. In this instance, the left subcostal margin is elevated with a retractor connect-
364 Atlas of Gastrointestinal Surgery: Spleen
Capsular tear
ed to a frame attached to the operating table. The abdominal wall
Liver
Deep stenic laceration
Superficial splenic lacerations
Omental attachments divided
Stomach
Spleen
is widely retracted. The stomach is grasped with a Babcock
clamp. Areolar attachments to the splenic capsule are divid-
ed to avoid further injury (1). Bleeding from splenic
injuries is controlled with Mikulicz’s pads placed over the
spleen and held firmly with the operator’s left hand (2).
The spleen is then mobilized out of the retroperitoneum
1
by dividing the lateral peritoneal attachments. The lesser
sac is entered by removing the omentum from the left
transverse colon. The omentum is then divided anterior to
the splenic hilum, so that the splenic hilar vessels can be
carefully examined (3). In this instance, there are three
injuries to the spleen. There is a superficial capsular tear
along the superior pole of the spleen, a superficial laceration
to the lower pole of the spleen, and a deep laceration in the
Colon
The capsular tear can be controlled by a variety of means. The argon beam coagulator is superb for small capsular tears. This is gener­ally preferable to the electrocautery. Avitene
®
(Davol Inc., Cranston, RI) on a small segment of absorbable gelatin sponge (Gelfoam™, Pharmacia & UpJohn, Kalamazoo, MI) and applied pressure for several minutes will also often be success-
midportion of the body of the spleen (1).
Lateral peritoneal attachments divided
ful (4, 5). The remaining two splenic injuries are controlled with pressure during the initial attention to the superior pole of the spleen.
Bleeding controlled with Mikulicz pad
Spleen
2
Management of Splenic Trauma by Splenorrhaphy 365
Stomach
3
Spleen
Hilar vessels examines
Avitene on Gelfoam
4
5
Manual compression
366 Atlas of Gastrointestinal Surgery: Spleen
The superficial laceration can be controlled with a
variety of techniques. The argon beam coagulator is
6
often excellent (6). Avitene (Davol Inc.) and
Gelfoam (Pharmacia & Upjohn), along with pres-
sure, might also be effective in this wound.
Spleen
Stomach
The deep laceration can be controlled with a variety
of techniques. One may place a series of horizontal
mattress sutures approximating the tear, using strips of
Argon beam coagulator
Dacron
the laceration to prevent sutures from pulling through the
®
(Invista Inc., Wichita, KS) felt on each side of
capsule (7). Generally, 2-0 synthetic monofilament non-
absorbable sutures are used for this purpose.
Gelfoam
Dacron felt strips
Stomach
Mattress sutures approximate a deep laceration
7
Management of Splenic Trauma by Splenorrhaphy 367
Alternative
Omental pedicle buttresses mattress sutures
An alternative is to use two pedicles of omentum in place
of Dacron (Invista Inc.) (8). We prefer autologous tissue
to synthetic tissue. Finally, some surgeons prefer to place a piece of omentum into the deep laceration to act as a
hemostatic agent before approximating the laceration with
mattress sutures (9).
Omentum
8
The surgeon can be innovative in controlling the vari­ety of capsular tears and parenchyma lacerations that are found during surgery. Generally, the younger the patient the more elastic and firm is the capsule, with less concern of a suture tearing through. In most adults, however, sutures have to be buttressed with omentum or Dacron felt (Invista Inc.) when deep sutures and firmer approximation are required. During all of these maneuvers, if bleed­ing persists, the splenic artery should be mobilized along the superior border of the body and the tail of the pancreas, and temporarily clamped with a bulldog
Alternative
9
Omental pedicle packed into deep laceration
Dacron felt
clamp. This will often be enough to allow these hemo­static steps to be effective. One then removes the bulldog clamp to be certain the hemostasis persists.
Management of Splenic Trauma By Partial Splenic Resection
Operative Indications:
Many splenic injuries are minor and consist of capsular tears, or superficial or deep lacerations. In a stable patient without other serious organ injuries, such splenic trauma can often be managed with a variety of hemostatic and splenic suture tech­niques. If the splenic laceration is more substantial and extends deeply into splenic parenchyma, particularly towards the hilum, such maneuvers may not be sufficient to control hemorrhage and salvage the spleen. In such instances, a partial splenic resection can be performed, removing that portion of the spleen that is not salvageable but retaining a portion of function­ing spleen. It is far more important to salvage the spleen in a young person than in an older individual, and this procedure often is relegated to the young.
Because there will be additional blood loss and operative time in performing partial splenic resection, the patient should be absolutely stable with no other organ injury. In the younger patient, the splenic capsule is generally more elastic and holds sutures better. This procedure should be considered in such a patient.
Operative Technique:
As with all patients undergoing laparotomy for abdominal trauma, a generous midline incision should be performed. The abdomen should be thoroughly examined to rule out other injuries. If the only injury is to the spleen and the patient is stable and has not lost a great deal of blood, then splenic salvage should be considered.
Liver
Management of Splenic Trauma By Partial Splenic Resection 369
1
Stomach
Omental attachments to spleen divided
Spleen
Attachments of the omentum to the spleen should be divid-
ed to avoid further capsular injury (1). The lesser sac is
entered by removing the omentum from the transverse
colon. At this point, the splenic artery can be dissected
out along its course along the superior aspect of the body and the tail of the pancreas, and occluded with a DeBakey bulldog clamp (2). This will help control the bleeding from the splenic laceration and allow one more
time to decide exactly how to manage it.
Splenic a. temporary occluded
Manual compression of spleen
2
370 Atlas of Gastrointestinal Surgery: Spleen
Vasa brevia divided
Stomach
Spleen
Splenic laceration extends into hilum
The omentum should then be divided anterior to the
splenic hilum between Kelly clamps and ligated with
2-0 silks. The vasa brevia can be divided between
Reinhoff clamps and ligated with 2-0 silks (3).
Omentum
3
At this point, the spleen has been exposed and
one can examine the splenic laceration and the extent to which it has extended into the splenic hilum. During these maneuvers, it is obviously important to control blood loss and achieve temporary hemostasis. This is best done by placing a Mikulicz’s pad over the spleen and compressing
4
it by hand (4). To fully evaluate the splenic injury, the retroperitoneal attachments should be divided (4) so that the spleen can be mobilized and delivered up into the wound. When it is determined that there is a major laceration deep into the parenchyma and extending into the hilum,
Retroperitoneal attachments divided
Colon
Management of Splenic Trauma By Partial Splenic Resection 371
attempts should be made to mobilize and expose the entire spleen adequately so a decision can be made concerning management. During this dissection, the combination of having a bulldog clamp on the splenic artery and compressing the area of the injury with a Mikulicz’s pad will allow one to maintain satisfac­tory hemostasis. In this case, examination of the completely mobilized spleen reveals that the deep laceration into the hilum has avulsed the lower one third of the spleen. The branch of the splenic artery to the lower pole of the spleen is triply ligated and divided (5). Before doing this, it may be helpful to temporarily release the bulldog clamp on the splenic artery to carefully examine and determine the splenic artery anatomy in the hilum. The corre­sponding splenic vein branch draining that segment of the spleen is like­wise doubly ligated and divided.
Splenic a.
Splenic v. branch to lower pole
Mikulicz pad on spleen
5
Tail of pancreas
After the splenic vessels have been controlled, the remaining
splenic parenchyma of the lower pole of the spleen is divid-
ed with the electrocautery (6).
Paranchyma divided
Lower pole resected
6