Gastric Cancer

Mahahalagang Punto

• Karaniwang mabagal ang pag-develop ng gastric cancer at maaaring tahimik sa klinika hanggang late-stage progression.
• Kabilang sa high-risk patterns ang H. pylori infection, obesity, mataas na asin o charred-food intake, heavy alcohol use, at paninigarilyo.
• Napapansin sa U.S. burden differences ang mas mataas na incidence sa Hispanic Americans, Black Americans, at American Indians.
• Karamihan sa cancers ay nagmumula sa mucus-producing gastric-lining cells at inuuri bilang intestinal o diffuse adenocarcinoma patterns.
• Kabilang sa common advanced-presentation cues ang weight loss, dysphagia, persistent abdominal pain, anorexia, nausea, hematemesis, early satiety, at indigestion.
• Nursing priorities ang risk recognition, napapanahong escalation para sa diagnostic workup, at koordinasyon ng multidisciplinary support.

Pathophysiology

Karamihan sa gastric cancers ay nagsisimula sa mucosa-lined glandular cells at adenocarcinomas. Nag-iiba ang tumor biology at treatment planning ayon sa subtype.

Classification

• Intestinal adenocarcinoma pattern: Mas clustered ang cellular architecture at mas malamang na mutation-associated targeted-therapy responsiveness.
• Diffuse adenocarcinoma pattern: Mas scattered ang cellular growth pattern at hindi gaanong kapansin-pansin ang surface involvement.

Nursing Assessment

NCLEX Focus

Unahin ang high-risk history clusters at huwag i-down-triage ang persistent upper-GI symptom change sa high-risk patients.

• Tayahin ang risk profile, kabilang ang H. pylori history, smoking/alcohol exposure, obesity, at high-salt o charred-food dietary patterns.
• Kilalanin na maaaring minimal ang sintomas sa early disease at ang symptom onset ay maaaring tanda ng advanced progression.
• Tayahin ang progressive symptom burden, kabilang ang weight loss, dysphagia, persistent abdominal pain, anorexia, nausea, hematemesis, early satiety, at persistent indigestion.
• I-monitor ang kasabay na upper-GI alarm cues (halimbawa recurrent vomiting, progressive dysphagia/odynophagia, GI bleeding, o unexplained weight loss) at i-escalate agad.
• I-review ang family history at prior gastric-disease history sa pag-stratify ng concern.

Diagnostics

• Upper endoscopy with biopsy: Pinakakaraniwang diagnostic pathway para makumpirma ang gastric malignancy.
• Adjunct luminal imaging: Maaaring gamitin ang barium swallow sa piling sitwasyon.
• Metastasis and staging support: Ginagamit ang abdominal CT, x-ray, endoscopic ultrasound, at serum studies para suriin ang pagkalat at treatment planning.
• Oncologic characterization: Ang histologic subtype (intestinal vs diffuse) ang gumagabay sa staging at treatment-pathway planning kapag may tissue diagnosis na.

Nursing Interventions

• I-escalate nang maaga ang high-risk symptom profiles, lalo na kapag tuloy-tuloy ang sintomas kahit may routine reflux/ulcer treatment.
• Palakasin ang risk-reduction education (pagtigil sa paninigarilyo at alcohol, dietary modification, at H. pylori evaluation/treatment adherence).
• Suportahan ang coordinated referral pathways sa gastroenterology, oncology, nutrition, at psychosocial support services.
• I-track ang symptom burden, nutrition status, at functional decline habang nagpapatuloy ang diagnostic at treatment planning.
• Magbigay ng malinaw na return precautions para sa bleeding, persistent vomiting, progression ng dysphagia, at mabilis na weight-loss.
• Ihanda at i-monitor para sa surgery bilang primary treatment approach, kasama ang procedure pathways na maaaring may total/partial gastrectomy, esophagogastrectomy, lymph-node dissection, gastrojejunostomy, at enteral-access tube placement.
• Suportahan ang systemic therapy planning at tolerance monitoring (chemotherapy, chemoradiation, immunotherapy, at targeted therapy) pagkatapos o kasabay ng surgical management.

Pharmacology

Drug Class	Role in Care	Key Nursing Considerations
Cause-directed oncologic therapy	Systemic regimen na pinipili matapos ang staging/subtyping	I-monitor ang toxicity trends, functional tolerance, at adherence barriers sa mga treatment cycle.
Supportive symptom therapy	Antiemetic, acid-suppression, pain-management pathways	I-align ang symptom control sa nutrition protection at mabilis na escalation kapag lumalala ang bleeding/obstruction cues.

Clinical Judgment Application

Clinical Scenario

Isang high-risk patient na may chronic H. pylori history at tobacco use ang nag-uulat ng persistent upper-abdominal discomfort at progressive food intolerance.

• Recognize Cues: High-risk history kasama ng persistent symptom progression.
• Analyze Cues: Ang pattern ay nagpapataas ng concern para sa upper-GI malignancy kaysa isolated reflux.
• Prioritize Hypotheses: Agarang prayoridad ang pinabilis na diagnostic evaluation at staging pathway activation.
• Generate Solutions: I-coordinate ang mabilis na specialist referral, risk-focused education, at supportive symptom management.
• Take Action: I-escalate ang findings sa provider at magsimula ng close follow-up para makumpleto ang diagnostics.
• Evaluate Outcomes: Bumibilis ang oras tungo sa diagnostic clarification at naitatala ang symptom burden sa structured follow-up.

Related Concepts

• gastritis - Mahahalagang risk contributors ang chronic gastric inflammation at H. pylori burden.
• peptic-ulcer-disease-gastric-and-duodenal-ulceration - Magkakahawig na upper-GI symptom presentations na nangangailangan ng differential assessment.
• abdominal-organ-enlargement-and-vascular-red-flags - Gastric-mass risk cluster context sa abdominal assessment.
• proton-pump-inhibitors - Karaniwang kasabay para sa acid symptom control sa upper-GI care pathways.