Surgical management of complications of peptic
ulcer disease
Despite improvements in the medical management of peptic ulcer disease, the
incidence of potentially life-threatening ulcer complications has not declined
[
1,2].
The importance of early surgical consultation in the management of patients
with ulcer complications cannot be overemphasized. In addition to aiding in
the resuscitation of the unstable patient, collaboration between the
gastroenterologist/endoscopist and the surgeon permits the establishment of
goals and limits for initial nonoperative therapy. Early consultation also
allows more time for preoperative preparation and education of patients and
families should urgent surgical intervention become necessary.
At the time of operation, the surgeon must decide whether to proceed with
definitive ulcer operation in addition to addressing the specific ulcer
complication. This issue has received considerable attention over the past
several decades but remains unsettled. Shifting ulcer epidemiology,
recognition of the role of H. pylori, improvements in medical pharmacotherapy,
and innovations in interventional endoscopic techniques render historical
reports of dubious applicability to current practice.
This topic review will discuss the role of surgery including emergency
operations, in the management of the major complications of peptic ulcer
disease: perforation, gastric outlet obstruction, and bleeding (
show
table 1). The overall role of elective surgery in peptic ulcer disease,
including a discussion of the different surgical techniques, is presented
separately. (
See
"Role of surgery in the management of peptic ulcer disease").
Omission of an acid-reducing ulcer procedure carries a risk of recurrent ulcer
symptoms and complications; this risk is variable in the literature but not
negligible. On the other hand, inclusion of such a procedure may result in
serious gastrointestinal sequelae in patients who may not have required the
intervention. In addition, a definitive operation is generally avoided during
emergency procedures with major underlying medical illness or intraoperative
hemodynamic instability.
Because proximal gastric vagotomy (PGV, also called parietal cell vagotomy and
highly selective vagotomy) is associated with few postoperative sequelae [
3,4],
it is the preferred acid-reducing procedure in patients with ulcer
complications. One trial, for example, randomized 248 patients with stable
peptic ulcer disease to truncal vagotomy and drainage (TV), selective vagotomy
and drainage (SV), or PGV [
3].
At 11 to 15 years after surgery, PGV was associated with reductions in the
incidence of severe postvagotomy symptoms such as dumping (2.2 versus 5.9 [TV]
and 19.6 [SV] percent), diarrhea (4.4 versus 9.8 and 11.8 percent), and
dyspepsia (8.6 versus 18.4 and 20.5 percent). Only the reduction in dumping
with PGV compared to SV was statistically significant. (
See
"Role of surgery in the management of peptic ulcer disease",
section on Proximal gastric vagotomy)
PERFORATION ! For perforation of a duodenal
ulcer, surgeons have historically performed either simple patch closure or
truncal vagotomy with pyloroplasty (incorporating the perforation). Both
approaches are simple and expedient, and the results have generally been good
[
5,6,7,8,9].
• Patch closure is appropriate for patients with
acute NSAID-related perforation (provided that the drugs can be discontinued
postoperatively) and for patients without a significant (more than three
month) history.
• Simple closure of the perforation should also
be performed in the setting of on-going shock, delayed presentation,
considerable comorbid disease, or marked peritoneal contamination.
Some prospective trials suggest that, in the absence of such factors, addition
of a definitive ulcer procedure (particularly PGV) is superior to simple patch
closure alone [
10].
A recent study reported the outcomes in 159 patients who were followed more
than 10 years after vagotomy and pyloroplasty for perforated duodenal ulcer [
11].
The perioperative mortality was 5.5 percent, ulcers recurred in 8.8 percent,
and postoperative digestive sequelae, notably diarrhea and dumping, developed
in 16 percent. Nevertheless, the overall results were good to excellent in
almost 90 percent of cases.
PGV with patch closure does at least as well. One series of 107 such patients
noted minimal morbidity, low mortality, excellent patient satisfaction (103
were Visick 1 or 2), a 7.4 percent recurrence rate (3.7 percent for duodenal
ulcer; 16 percent for pyloric and prepyloric ulcer), and a reoperation rate
below 2 percent [
12].
Chronic pyloroduodenal scarring is considered a relative contraindication to
PGV in this setting since it may be associated with delayed gastric emptying
after surgery.
Gastric ulcer ! Perforated gastric ulcer
carries a greater overall mortality that may range from 10 to 40 percent,
regardless of treatment policy [
13,14,15].
Distal gastrectomy is the preferred approach unless the patient is at
unacceptably high risk because of advanced age, comorbid disease,
intraoperative instability, or severe peritoneal soilage (
show
table 1) [
16].
Patch closure alone is associated with postoperative gastric obstruction in
approximately 15 percent of cases [
16].
There is a growing body of literature on laparoscopic suture patch and fibrin
glue repair of perforated peptic ulcers that demonstrates the feasibility of
minimally invasive approaches [
17,18].
However, this technique cannot be recommended outside of a research setting at
this time.
GASTRIC OUTLET OBSTRUCTION ! Patients with
gastric outlet (pyloric) obstruction due to a duodenal ulcer typically present
with symptoms of gastric retention including early satiety, bloating,
indigestion, anorexia, nausea, vomiting, epigastric pain, and weight loss. (
See
"Complications of peptic ulcer disease"). These patients are
frequently malnourished, dehydrated, and have a metabolic alkalosis, factors
that increase the operative risk. Nevertheless, operation is generally
indicated if obstruction fails to resolve despite 48 to 72 hours of adequate
intravenous fluid replenishment, antisecretory therapy, and nasogastric tube
decompression.
Inflammation and scarring may prevent safe antrectomy, which would otherwise
be an excellent choice since it resects the ulcer and relieves the
obstruction. Thus, truncal vagotomy and gastrojejunostomy is the preferred
approach (
show
table 1). Placement of a feeding jejunostomy tube at the time of surgery
is usually recommended, both because of preoperative malnutrition and because
the chronic gastric outlet obstruction predisposes to delayed postoperative
gastric emptying.
PGV with drainage has also been used in the setting of obstructing ulcer [
19,20].
One series evaluated 37 patients who underwent PGV accompanied by pyloroplasty,
pyloric resection, duodenoplasty, or gastroenterostomy to address the
obstruction [
19].
Digestive side effects were infrequent, and no recurrences were identified at
follow-up of 4.6 years. Early dumping was mild and frequently only transient.
Although the need for pyloric reconstruction or bypass would theoretically
negate several advantages of PGV over other options, preservation of
antropyloric innervation may preserve controlled gastric emptying and minimize
bile reflux [
20].
However, debate persists as to the optimal drainage procedure. The Jabouley
side-to-side duodenoplasty has gained popularity because of its technical
simplicity and because the anastomosis is performed in healthy
tissue, distinct from the ulcer bed. In one report of 19 patients treated with
this procedure, there was a high degree of patient satisfaction (100 percent
modified Visick grade 1 or 2), universal weight gain, and no operative
mortality or ulcer recurrence at mean follow-up of 31 months [
21].
However, these benefits have not been noted in all reports. One trial
randomized 90 consecutive patients with gastric outlet obstruction secondary
to duodenal ulcer to PGV with gastrojejunostomy, PGV with Jabouley
duodenoplasty, or selective vagotomy with antrectomy [
22].
There were no differences in the postoperative course or the reduction in
gastric acid secretion; however, both PGV with gastrojejunostomy and selective
vagotomy with antrectomy produced a superior clinical result to PGV with
Jabouley pyloroplasty.
BLEEDING ! Most patients with
bleeding ulcers can be managed with resuscitation, medical therapy, and
endoscopic intervention. (
See
"Treatment of bleeding peptic ulcers"). Current indications for
surgery for peptic ulcer hemorrhage include:
• Hemodynamic instability despite vigorous
resuscitation (>3 unit transfusion)
• Failure of endoscopic techniques to arrest
hemorrhage
• Recurrent hemorrhage after initial
stabilization (with up to two attempts at obtaining endoscopic hemostasis)
• Shock associated with recurrent hemorrhage
• Continued slow bleeding with a transfusion
requirement exceeding three units per day
Secondary or relative indications include rare blood type or difficult
crossmatch, refusal of transfusion, shock on presentation, advanced age,
severe comorbid disease, and bleeding chronic gastric ulcer. These criteria
also apply to elderly patients in whom prolonged resuscitation, large volume
transfusion, and periods of hypotension are poorly tolerated.
Identification of a so-called "visible vessel" or other stigmata of
recent hemorrhage at endoscopy may define a population at high risk for
recurrent bleeding [
23],
although its predictive value depends upon the strictness of definition. It
has not been clearly demonstrated that the presence of a visible vessel in and
of itself is sufficient to select patients for operation, although endoscopic
cauterization and/or injection with vasoconstrictors or sclerosants may be
advisable in this setting.
Endoscopy can identify that population of patients who may require more urgent
operative intervention since an ulcer's appearance can have prognostic
implications [
24,25,26]:
• Low recurrence rates have been associated with
the visualization of a flat pigmented spot or a clean ulcer bed
• High recurrence rates have been associated with
a spurting vessel, a visible arterial vessel in the ulcer bed, adherent clot,
or a large ulcer bed [
24,25,26].
Endoscopic localization (ie, in the duodenum or stomach) is also of
considerable value in planning surgical therapy.
The first priority during emergency surgery for a bleeding duodenal ulcer is
control of the bleeding site. If esophagogastroduodenoscopy has failed to
precisely identify the source of hemorrhage, a pyloroduodenotomy may be
necessary to inspect the duodenal bulb and gastric antrum. Control is obtained
by suture ligature, or less frequently, by identifying and ligating the
gastroduodenal artery at the superior aspect of the duodenum. Once the
bleeding has been addressed, a definitive acid-reducing operation should
generally be performed (
show
table 1). Because it is simple to open the pylorus in a longitudinal
fashion, truncal vagotomy with pyloroplasty is the most frequently used
operation for bleeding duodenal ulcer. For bleeding gastric ulcers, distal
gastrectomy with Billroth I or II reconstruction is preferred (
show
figure 1).
In experienced hands, proximal gastric vagotomy may represent the best therapy
for a bleeding duodenal ulcer. There is limited published experience with this
approach [
27,28,29]
probably because endoscopic hemostatic techniques have reduced the total
number of surgical referrals and many patients who do require surgery are
bleeding so massively as to be unstable or have refractory hemorrhage after
multiple attempts at endoscopic control. As a result, more traditional, more
expedient operations with proven efficacy are often chosen over PGV.
Nevertheless, PGV may represent ideal therapy in properly selected patients.
In a report from the Mayo Clinic, for example, PGV was performed 52 low risk
patients; there was no postoperative mortality, few complications, and only
one recurrent hemorrhage [
28].
Another series evaluated 27 patients who were treated similarly, but presented
in more critical condition [
29].
There was only one death in the perioperative period (in a patient with
cirrhosis) and only one recurrence after 2 to 11 years follow-up (in a patient
with a gastrinoma).