Policy and choice of treatment method

The main tasks in treatment of patients with acute peptic ulcer haemorrhage are:

1. Arrest of bleeding.

2. Removal of bleeding consequences (correction of blood volume circulation, cardiac, renal, liver disturbances, etc).

3. Antisecretory therapy.

4. Moving off blood from intestine lumen.

5. Immunocorrection.

Arrest of bleeding may be achieved using 3 ways: endoscope, conservative therapy, operation.

Most patients (85–90%) respond to endoscopic therapy. After fiber-optic endoscopy inspection and visualization of the source of bleeding endoscopy hemostasis has been performed using one of the following ways:

– periulcerous injection of vasoconstrictors and procoagulators;

– electrocoagulation;

– laser coagulation;

– plasma coagulation;

– covering over the bleeding ulcer with polymer film;

– clipping of vessels.

A combination of therapies has become more common. Injection therapy is applied first to better clarify the bleeding site, especially in the actively bleeding patient; then, heater probe or bipolar probe coagulation is applied. Injection therapy can also be performed prior to endoscopic placement of haemoclips. Injection therapy is useful prior to laser therapy to reduce the heat sink effect of rapidly flowing blood prior to laser coagulation.

The use of argon plasma coagulation for ulcer haemorrhage, however, there are significant theoretical and experimental considerations from animal models about the use of a noncontact monopolar cautery in this situation.

The bipolar probe consists of alternating bands of electrodes producing an electrical field that heats the mucosa and the vessel.

The electrodes are coated with gold to reduce adhesiveness. The probes are stiff to allow adequate pressure to the vessel to appose the walls and thus produce coagulation when the energy is transmitted (heat energy by the heater probe, electrical-field energy by the bipolar probe). Careful technique is required to heat-seal the perforated vessel.

Alternatively, epinephrine (1:10,000, 1:20,000) can be injected in 0.5 mL aliquots around the base of the vessel. This causes coagulation by compression, with perhaps some additive effect of activation of platelet factor 3 or vasoconstriction. Other solutions that have been used for injection are ethanol (more necrosis), hypertonic saline, sterile water, and cyanoacrylate.

Epinephrine injection is often used to reduce the volume of bleeding so that the lesion can be better localized and then treated with a coaptive technique (i.e., heater probe, gold probe). Such combination therapy has become more frequent and has evolved into the standard technique.

Laser therapy is rarely used. To perform laser coagulation, the region near the vessel is first injected with epinephrine to reduce blood flow (reducing the heat-sink effect); then, the laser is applied around the vessel (producing a wall of oedema). Caution must be observed to avoid drilling into the vessel with the laser, causing increased bleeding.

Hemostatic clips have recently become available in the United States. With careful placement of the clip, closing the defect in the vessel is possible. Usually, multiple clips are applied.

Argon plasma coagulation is a technique in which a stream of electrons flows along a stream of argon gas. The coagulation is similar to monopolar cautery with the current flow going from a point of high current density, the point of contact of the gas with the mucosa, to an region of low current density, the conductive pad on the patient’s body. The current flows through the body in an erratic path to the pad. This monopolar cautery technique is similar to the laser technique in that energy is delivered to the vessel for coagulation with apposition of the vessel walls. This technique was not effective for visible vessels larger than 1 mm.

Contraindications to emergency fiber-optic endoscopy include:

– severe cardiac and lung decompensation;

– acute myocardial infarction;

– impaired cardiopulmonary status and bleeding diathesis.

Emergency esophagogastroduodenoscopy may be more difficult or impossible if the patient has had previous oropharyngeal surgery or radiation therapy to the oropharynx.

The presence of Zenker’s diverticulum can make intubation of the esophagus more difficult.

After endoscopy hemostasis conservative therapy has been started.

Itmust include:

– prescription of haemostatics (intravenously aminocapronic acid 5% ~200–400 ml, chorus calcium 10% – 10.0 ml, vicasol 1% – 3.0 ml);

– increasing of the volume of circulatory blood (gelatin, reopoliglukine, salt blood substitutes);

– preparations of blood (fibrinogen – 2–3 g, cryoprecipitate);

– blood substitutes therapy (red corpuscles mass, washed red corpuscles, plasma of blood);

– H2-receptor antagonists or proton pump inhibitors;

– antacids and adsorbents (almagel, phosphalugel, maalox – for 1–2 dessert-spoons through 1 hour after food intake).

It is important to wash stomach with ice water and use 5% solution of aminocapronic acid 1 tablespoon every 20–30 minutes.

Absolute indications for surgical treatment are:

1) prolonged bleeding;

2) recurrent bleeding;

3) perforated bleeding ulcer.

Relative indications for surgery may be established in patients with high risk of recurrent bleeding: Forrest I or II attached to “gigantic” (more than 20 mm in diameter) ulcers, combination of bleeding with stenosis and penetration.

It’s better to perform surgery in the patient at high risk of recurrent bleedingduring 24–48 hours after removal of consequences of acute bleeding.

Angiographic embolization is an option in the patient at high risk for surgical intervention. Angiographic embolization of the gastroduodenal or the left gastric arteries may be effective, but there are dangers involved. A foreign body may slip from the gastroduodenal into the hepatic artery and lead to hepatic necrosis; one in the left gastric artery may lead to necrosis of the upper portion of the stomach.

Operations for massively bleeding duodenal ulcers

The site of bleeding must be determined. If the source is the gastroduodenal artery, it must be ligated as the first step. This procedure involves suture of the artery, either above the duodenum as it emerges from the hepatic artery or within the duodenal lumen, suture of the caudal portion of the artery within the duodenum or of the two major branches; the superior pancreatoduodenal and the right gastroepiploic; and of the transverse pancreatic artery. Heavy, non-absorbable sutures are used. In other instances the duodenum may be boggy and bleeding from multiple regions; in such instances it may be impossible to identify vessels to ligate.

As soon as bleeding has been controlled, a definitive operation can be carried out. We believe that ulcer excision and pyloroduodenoplasty with/without selective vagotomy is best. A major determinant in the selection is the experience of the surgeon. If vagotomy wasn’t performed, H2-receptor antagonists or proton pump inhibitors has been prescribed for prevention of ulcer recurrence and it’s complications.

Partial gastrectomy (the usual procedure involves resection of the distal two-thirds of the stomach) is more difficult, but gives slightly better control of bleeding because it removes regions of gastritis and duodenitis that are potential sources of postoperative bleeding.