Stomach related Surgical issues

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Presentation transcript:

Stomach related Surgical issues Dr. Nishan Silva (MBBS)

Acute UGI Bleeding Presentation Hematemesis Melena Hematochezia Vomiting BRB or coffee ground material Melena Black tarry stool Hematochezia Bright red or maroon rectal discharge 11% are UGI Bleeding NG Lavage Positive result Blood or coffee ground material Negative Result Bile with no blood Bleeding stopped Bleeding beyond closed pylorus

Acute UGI Bleeding Hemodynamic Instability Shock Orthostatic hypotension Profuse active bleeding Decrease in HCT ≥ 10% Anticipated transfusion > 2 units RBC’s

Acute UGI Bleeding Resuscitation Large bore I.V. NSS Blood Transfusions Correct coagulopathy INR > 1.5 FFP Vitamin K Correct thrombocytopenia < 50,000 NG Lavage to remove blood & clots Protect airway if necessary with elective intubation PPI Octreotide GI and Surgical Consults

Acute UGI Bleeding Diagnostic Studies Endoscopy Tagged red cell bleeding scan Angiography

Causes of Esophago-Gastro-Duodenal Bleeding Varices Mallory Weiss Esophagitis Gastric Ulcer NSAID’s/ Aspirin Neoplasm Acute Gastritis Duodenal Ulcer Arterio-Venous Malformation

Upper Gastrointestinal Bleeding

Influence of Diagnosis on Outcome

Acute UGI Bleeding Endoscopy Gold standard for Dx Most sensitive study Therapeutic potential is major asset Decrease re-bleeding Fewer blood transfusions Decreases LOS Reduces mortality Reduces surgical procedure Pre-Endoscopy Emycin

Acute UGI Bleeding Risks of Endoscopy Aspiration Hypoventilation Perforation Co-Morbid Events AMI COPD

Acute UGI Bleeding Endoscopic treatment of PUD Epinephrine injection – initial Rx only Heater probe Bipolar electro-coagulation Endo clips – 15-20% of ulcers cannot be clipped Use double channel scope Re-bleeding occurs 15-20% of non-variceal lesions Re-bleeding usually occurs in 24-48 hrs. Re-scope successful 50%

Acute UGI Bleeding PPI Treatment Decreases re-bleeding in PUD Decreases blood transfusions and LOS High risk ulcers; use PPI infusion 80 mg IV bolus 8 mg 1 hr. infusion Switch to PPI BID orally in 72 hrs. Positive H. pylori; treat as outpatient

Endoscopic View of Oesophageal Varices

Variceal Bleeding Prediction of patients at risk Prophylaxis against first bleed Treatment of active bleeding Prevention of re-bleeding

Variceal Bleeding 30-40% mortality Directly related to portal hypertension 70% risk of re-bleeding in 1 year Occurs in 25-40% of patients with cirrhosis most common etiology Portal pressure flow X resistance Normal portal pressure 5mm Hg

Variceal Bleeding Treatment of Active Bleeding Current Options Octreotide Endoscopy Surgery TIPS

Oesophageal Varices - Sclerotherapy

Oesophageal Varices - Banding

Transjugular Intrahepatic Porto Systemic Shunts Functions similar to surgical shunts No surgery, done transjugular Re-bleed rate 20% in first year Major drawback is hepatic encephrlopathy Shunt stenosis common Very expensive Best used as salvage procedure

Gastric and duodenal ulcer disease

Peptic Ulcer Disease Pathogenesis : Protective factors vs. hostile factors

Peptic ulcer Pathogenesis: For both Duodenal & Gastric Ulcers: Infection w/ H. pylori: Decreases resistance of mucus layer from acid permeation (hydrophobicity) Increase acid secretion Slow duodenal emptying Reduced both duodenal and gastric bicarbonate secretion

Clinical Manifestation Abdominal pain: Due to irritation of afferent nerves w/in the ulcer by the acid or due to peristaltic waves passing through the ulcer Duodenal: colicky or burning pain relieved w/ food intake Gastric: gnawing or burning usually during or after eating. N/V Weight loss Epigastric tenderness

Peptic ulcer Pathogenesis: Effects of NSAIDs Decreases Prostagladin Prostaglandin – inhibits acid secretion, stimulates mucus and HCO3 secretion and mucosal blood flow Zollinger-Ellison Syndrome (1%): Massive secretion of HCL due to ectopic gastrin production from non-beta islet cell tumor (gastrinoma) Associated w/ type I (MEN) PPP 20% multiple, 2/3 malignant, w/ slow growing Parietal cell mass is increased > gastrin 3-6 x the normal

Symptoms of gastric ulcer disease: epigastric pain after meal or during meal upper dyspeptic syndrome – loss of appetite, nauzea, vomiting, flatulence vomiting brings relief reduced nutrition loss of weight

Comparing Duodenal and Gastric Ulcers

Symptoms of duodenal ulcer disease: epigastric pain 2 hours after meal or on a empty stomach or during night pyrosis good nutrition obstipation seasonal dependence (spring, autumn)

Diagnosis: UGIS (double contrast) Endoscopy

Therapy: Conservative Surgical regular lifestyle prohibition of the smoking and alcohol diet (proteins, milk and milky products) pharmacology (antagonists of H2 receptors, antacids, anticholinergics Surgical BI, BII resection proximal selective vagotomy vagotomy with pyloroplastic suture of perforated or haemorrhagic ulcer

Zeman, M. et al., Speciální chirurgie, ISBN 80-7262-260-9, 2004 Billroth I

Zeman, M. et al., Speciální chirurgie, ISBN 80-7262-260-9, 2004 Vagotomy

Treatment Primarily medical Surgical indications PPI or H2 blocker Triple combination (double antibiotic and PPI=amoxicillin, clarithromycin, pantoprazole for 7-14 days) Surgical indications Intractibility (after medical therapy) Hemorrhage Obstruction Perforation Relative: continuous requirement of steroid therapy/NSAIDs H pylori therapy fails in as many as 20% of patients

Treatment: Mechanism of Pharmacologic Therapy: For eradication of H. pylori: Bismuth based triple therapy Bismuth + Tetracycline + Metronidazole Proton pump inhibitor Omeprazole + Amoxicillin/Clarithromycin + metronidazole

GI Bleeding

Ulcer with recent bleed

Ulcer Perforation

Gastric Cancer Gastric cancers can occur anywhere in the stomach. However, most frequently, they occur on the lesser curvature (next slide). The tumor infiltrates the surrounding mucosa, penetrating the wall of the stomach and adjacent organs and structures. At the time of diagnosis, the liver, pancreas, esophagus, and duodenum are often affected.

Clinical manifestations Pain relieved by antacids. Dyspepsia (indigestion), early satiety , weight loss, abdominal pain above the umbilicus. Loss of appetite and nausea and vomiting.

Assessment and diagnostic findings The physical examination may not be helpful in detecting the cancer because most early gastric tumors are not palpable. In advanced cases, a gastric mass may be palpable. Ascites and hepatomegaly may be apparent if metastasis occurs. Palpable nodules around the umbilicus (slide 6). Esophagogastroduodenoscopy for biposy and cytologic washings is the diagnostic study of choice. CT completes the diagnostic studies to assess for surgical resectability of the tumor before surgery is scheduled. CT of the chest, abdomen, and pelvis is important in staging of gastric cancer.

Sister Mary Joseph's nodule of the umbilicus

Medical management Successful treatment of gastric cancer is through tumor removal. Cure could be achieved if the tumor has been removed while it is still localised to the stomach. Otherwise, cure is less likely. Unresectable tumor in a patient with advanced disease, chemotherapy using single agent chemotherapeutic medications including 5-fluorouracil (5-FU), cisplatin, doxorubicin, and mitomycin. It is now more common to administer combination therapy, primarily 5-FU-based therapy with other agents.

Total gastrectomy may be performed for a resectable cancer Total gastrectomy may be performed for a resectable cancer. The entire stomach, the duodenum, the lower portion of the esophagus, supporting mesentry, and lymph nodes are removed. Esophagojejunostomy is performed to reconstruct the GI tract.                                                              

Nursing diagnoses, planning and goals Based on assessment data, nursing diagnoses may include: Anxiety related to the disease and anticipated treatment. Imbalanced nutrition related to early satiety or anorexia. Pain related to tumor mass. Anticipatory grieving related to diagnosis of cancer. Deficient knowledge regarding self-care activities. The major goals for the patient may include: reduced anxiety optimal nutrition pain relief adjustment to diagnosis and anticipated life style changes

Question Treatment of ulcers which are positive for H. pylori need? A) only a longer coarse of PPI B) addition of antibiotics C) need an inpatient coarse of treatment D) can be treated the same as ulcers that are negative for H. pylori

Clinical Scenario 67 yo M with history of HTN and osteoarthritis who presents to the ED with 3 episodes of coffee –ground emesis today. No abdominal pain, melena or hematochezia. No history of liver disease or coagulopathy, +occasional ETOH use. Medications include HCTZ, Lisinopril, and Ibuprofen PRN for joint pain VS on arrival: T 37, HR 102, BP 108/72, similar BP standing , Pox 99% RA Examination: . No scleral icterus. Abdomen soft, non-tender, no HSM. Rectal with dark brown stool Labs: Hgb 9.8, Plt 245, INR 1, LFTs nl, BUN 28/Cr 1.4.

Clinical Scenario Conclusion 67yo M on NSAIDS with 3 episodes of coffee –ground emesis, anemia, and tachycardia What is the likely etiology of the bleeding? What is the appropriate acute management?