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Related Concept Videos

Bacterial Gastroenteritis01:18

Bacterial Gastroenteritis

Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid receptor...
Drugs Affecting GI Tract Motility: Antimicrobials as Antidiarrheal Agents01:18

Drugs Affecting GI Tract Motility: Antimicrobials as Antidiarrheal Agents

Acute diarrhea, a common gastrointestinal disturbance, is characterized by the rapid evacuation of fluid stools, leading to an excessive weight in fluid. This condition typically arises from disorders affecting intestinal water and electrolyte transport. It can be triggered by an increased osmotic load within the intestine, excessive secretion of electrolytes and water, mucosal exudation of protein and fluid, or altered intestinal motility. The primary risks of acute diarrhea are dehydration...
Intestinal Obstruction II: Pathophysiology01:07

Intestinal Obstruction II: Pathophysiology

Intestinal obstruction triggers a series of physiological responses, starting with gas and fluid accumulation in the bowel segment proximal to the obstruction, leading to distension. This distended intestine compresses the diaphragm, hindering lung expansion and potentially leading to reduced respiratory effort, atelectasis, and pneumonia.To overcome the blockage, the gut intensifies contractions, causing colicky abdominal pain, nausea, and vomiting, which reduces fluid and food intake and...
Drugs Affecting GI Tract Motility: Adsorbents as Antidiarrheal Agents01:20

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Diarrhea is characterized by the occurrence of frequent, watery bowel movements. Various factors can trigger diarrhea, including viral or bacterial infections, foodborne illnesses, side effects from certain medications, and underlying digestive disorders. If not adequately managed, diarrhea can lead to complications such as dehydration, electrolyte imbalances, and nutrient deficiencies. Severe diarrhea can lead to significant weight loss, malnutrition, and weakened immune function.
Adsorbents...
Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists01:29

Chemotherapy-Induced Nausea and Vomiting: Dopamine Receptor Antagonists

Dopamine receptor antagonists, also known as antipsychotic agents, are critical in managing chemotherapy-induced vomiting. These antiemetic agents block dopamine receptors in the chemoreceptor trigger zone (CTZ), inhibiting signal transmission to the vomiting center. Antipsychotic agents encompass phenothiazines (PTZ), butyrophenones, benzamides, and thienobenzodiazepines (Zyprexa), which are utilized for their antiemetic and sedative properties.
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Drugs Affecting GI Tract Motility: Opioids as Antidiarrheal Agents01:17

Drugs Affecting GI Tract Motility: Opioids as Antidiarrheal Agents

Diarrhea, a condition marked by frequent loose or watery bowel movements, can be triggered by multiple factors such as viral or bacterial infections, food intolerances, anxiety, medications, and digestive disorders. Symptoms may include abdominal pain, bloating, nausea, and cramping. Severe or prolonged diarrhea can lead to complications like electrolyte imbalances, malnutrition, and dehydration if left untreated.
Opioids, widely used antidiarrheal agents, mitigate diarrhea by slowing down...

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Ginger Moxibustion, A Non-pharmacological Treatment, for Diarrhea in Patients with Chronic Obstructive Pulmonary Disease
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[Diarrhoea, nausea and vomiting].

Katja Senkel1, R Fischer-Lampsatis

  • 1Gastroenterologie, Klinik für Innere Medizin, Krankenhaus Hedwigshöhe, Berlin. katjasenkel@web.de

Praxis
|December 17, 2009
PubMed
Summary
This summary is machine-generated.

A patient with a history of gastrointestinal issues presented with new symptoms, leading to the diagnosis of a metastatic gastrinoma. This neuroendocrine tumor was confirmed via somatostatin scintigraphy after initial suspicion.

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Area of Science:

  • Gastroenterology
  • Oncology
  • Nuclear Medicine

Background:

  • Neuroendocrine tumors (NETs) can present with vague gastrointestinal symptoms, complicating diagnosis.
  • Previous attempts to diagnose a suspected neuroendocrine tumor in this patient were inconclusive.
  • Elevated chromogranin A and gastrin levels suggested a neuroendocrine origin.

Observation:

  • A 54-year-old patient with a history of bleeding gastrointestinal ulcerations reported persistent nausea, vomiting, and diarrhea.
  • Recurrent diarrhea over several years prompted further investigation.
  • High levels of chromogranin A and gastrin were noted.

Findings:

  • Somatostatin scintigraphy confirmed the presence of a metastatic gastrinoma.
  • The primary tumor's location remained unknown.
  • The findings confirmed a neuroendocrine tumor metastasis.

Implications:

  • Early and accurate diagnosis of neuroendocrine tumors is crucial for effective management.
  • Somatostatin scintigraphy is a valuable tool for localizing neuroendocrine tumors and metastases.
  • Metastatic gastrinoma requires a multidisciplinary approach for treatment and surveillance.