The use of digital technology and the Internet to execute th…
Questions
The use оf digitаl technоlоgy аnd the Internet to execute the mаjor business processes in the enterprise is called:
Pаncreаtic Adenоcаrcinоma 1. Backgrоund Definition: Malignant tumor arising from the exocrine pancreas, most commonly ductal adenocarcinoma of the pancreatic head. Pathophysiology: Chronic inflammation and genetic mutations (KRAS, p53, SMAD4) promote malignant transformation of ductal epithelial cells. Tumor obstructs the common bile duct or pancreatic duct, leading to biliary obstruction and progressive weight loss. Epidemiology: Median age at diagnosis: ~70 years. Highly lethal — 5-year survival
Smаll Bоwel Obstructiоn (SBO) 1. Bаckgrоund Definition: Pаrtial or complete blockage of the small intestine that prevents normal passage of intestinal contents. Pathophysiology: Mechanical obstruction (most common): physical blockage of the lumen. Functional obstruction (ileus): failure of peristalsis without physical blockage. Leads to proximal dilation, fluid sequestration, electrolyte imbalance, and risk of bowel ischemia if untreated. Common causes: Adhesions from prior abdominal surgery (most common). Hernias (second most common, esp. worldwide). Neoplasms, Crohn disease, intussusception, volvulus, or foreign bodies. Complications: Bowel ischemia, perforation, sepsis, hypovolemia. 2. History Symptoms: Colicky abdominal pain, nausea/vomiting, abdominal distension, obstipation (no flatus or stool). Pain often intermittent and crampy; vomiting more prominent with proximal obstruction. History clues: Prior abdominal surgery → adhesions. Hernia bulge → incarceration or strangulation. Weight loss, anemia → malignancy. Red flags: Persistent pain, fever, or peritoneal signs suggesting ischemia or strangulation. 3. Exam Findings Inspection: Distension, visible peristalsis (late). Auscultation: Early: High-pitched “tinkling” bowel sounds. Late: Absent sounds (suggests ischemia or necrosis). Palpation: Tenderness, possible hernia, rebound/guarding if peritonitis. Rectal exam: May show empty rectum or occult blood. 4. Making the Diagnosis Gold standard imaging: CT abdomen and pelvis with IV contrast — identifies level of obstruction, cause, and complications (ischemia, perforation). Initial test: Abdominal X-ray (upright and supine) — shows dilated loops of small bowel, air-fluid levels, and absence of colonic gas. Laboratory findings: Hemoconcentration or elevated hematocrit (dehydration). Leukocytosis (infection or ischemia). Electrolyte abnormalities (hypochloremic, hypokalemic metabolic alkalosis). Strangulation signs: Fever, tachycardia, leukocytosis, continuous pain, metabolic acidosis. 5. Management A. Initial Stabilization NPO (bowel rest). IV fluids and electrolyte correction. Nasogastric tube decompression for vomiting or distension. Monitor for signs of ischemia or perforation. B. Definitive Management Partial/simple SBO: Conservative management (IV fluids, NG decompression, serial exams). Complete or complicated SBO (strangulation, perforation, peritonitis): Emergency surgical intervention. Adhesive disease: Laparoscopic adhesiolysis if nonoperative measures fail. Hernia-related: Urgent repair after decompression. C. Prevention / Follow-up Early ambulation post-surgery to reduce adhesion formation. Treat underlying causes (hernia repair, tumor resection, Crohn management).