Overview
Metastatic malignant neoplasms involving the stomach represent a challenging clinical scenario, often characterized by advanced disease stages and significant symptom burden. These patients frequently present with a constellation of symptoms including abdominal pain, nausea/vomiting, significant weight loss, and reduced physical strength, which profoundly impact quality of life and necessitate comprehensive multidisciplinary management. The clinical approach must balance aggressive interventions aimed at extending survival with palliative strategies focused on symptom relief and supportive care. Evidence underscores the importance of early integration of palliative care to optimize outcomes and address the multifaceted needs of these patients.
Clinical Presentation
Patients with metastatic malignant neoplasms to the stomach often experience a debilitating array of symptoms that significantly affect their daily functioning and overall well-being. Reid and colleagues' qualitative research [PMID:29860861] highlights the profound impact of cancer-associated anorexia, not only on patients but also on their families, leading to heightened frustration and a critical need for more structured guidance from healthcare providers. This symptom is particularly distressing and can exacerbate other physical and psychological issues.
Common presenting symptoms in advanced gastric cancer include abdominal pain (reported in 42.9% of cases) [PMID:29970658], nausea and vomiting (19.0%) [PMID:29970658], substantial weight loss (52.4%) [PMID:29970658], and diminished physical strength (23.8%) [PMID:29970658]. Notably, lack of energy emerges as the most prevalent symptom, underscoring its critical importance in palliative care settings [PMID:22919864]. Gender and severe weight loss further influence the pattern of gastrointestinal symptoms, suggesting that individualized symptom management plans are essential [PMID:7537907]. These symptoms not only reflect the aggressive nature of the disease but also indicate the necessity for prompt and targeted interventions to alleviate suffering and improve quality of life.
In clinical practice, recognizing these symptom patterns early can guide appropriate referrals and interventions. For instance, patients experiencing specific tumor-related symptoms may benefit from surgical interventions such as palliative gastrectomy (PG), which has been associated with longer survival durations compared to non-resection strategies [PMID:28288593]. However, the decision to proceed with surgery should be carefully weighed against the patient's overall condition and symptom burden.
Diagnosis
Diagnosing metastatic malignant neoplasms in the stomach typically involves a combination of clinical evaluation, imaging studies, and histopathological confirmation. Endoscopic examination often reveals characteristic lesions, while imaging modalities such as CT scans and PET scans help in assessing the extent of metastasis and identifying distant sites of involvement. Biopsy samples are crucial for definitive histopathological diagnosis, guiding further treatment decisions. Given the advanced nature of these cancers, diagnostic efforts should be complemented by early integration of palliative care to address symptom management and psychosocial support from the outset.
Management
The management of metastatic malignant neoplasms in the stomach is multifaceted, encompassing both curative and palliative approaches tailored to individual patient needs. Surgical interventions, such as palliative gastrectomy (PG), play a pivotal role for patients with symptomatic disease or resectable metastases, potentially offering survival benefits [PMID:28288593]. Studies indicate that patients undergoing PG have a median follow-up of 7.2 months compared to 4.7 months in non-resection groups, highlighting the potential survival advantages of surgical intervention when feasible [PMID:28288593].
Palliative care is indispensable in managing the complex symptomatology associated with advanced gastric cancer. Direct feedback from patients and families emphasizes the urgent need for better information and guidance on managing weight loss and anorexia [PMID:29860861]. Early initiation of outpatient palliative care, from the time of diagnosis, has been shown to enhance quality of life, reduce symptom burden, and increase patient satisfaction [PMID:27185614]. Tools like the 9-Item Version of the Frommelt Attitude Toward the Care of the Dying Scale (FATCOD-9IT) have demonstrated reliability and validity in assessing attitudes towards palliative care among medical professionals, underscoring the importance of training programs in this area [PMID:36606420].
Combination therapies also show promise. Liang et al. [PMID:31868545] demonstrated that integrating chemotherapy with gastrectomy or metastasectomy, and further enhancing with radiation therapy, significantly extends survival time (p < 0.05). Additionally, innovative approaches such as low-frequency rotary magnetic fields have shown improvements in symptoms like abdominal pain, nausea/vomiting, weight loss, physical strength, and sleep quality, with a median survival time of 8.0 months and a 1-year survival rate of 25.8% [PMID:29970658]. These findings suggest that while conventional treatments remain central, adjunctive therapies can offer additional benefits with acceptable safety profiles.
Addressing psychological symptoms is equally crucial, as inadequate management of these aspects has been reported among cancer patients, particularly in contexts like Lebanon [PMID:22919864]. Comprehensive programs, such as those offered by the Cleveland Clinic Foundation, provide multidisciplinary care including inpatient and outpatient consultations, acute care units, pain clinics, and home care services, aiming to optimize quality of life [PMID:10923766].
Complications
Surgical interventions, while potentially beneficial, carry inherent risks and complications that must be carefully considered. Postoperative morbidity and mortality are significant factors influencing the decision to proceed with palliative gastrectomy [PMID:28288593]. These complications can range from surgical site infections and anastomotic leaks to more systemic issues like respiratory failure and multi-organ dysfunction. Therefore, thorough preoperative risk assessment and meticulous postoperative care are essential to mitigate these risks and ensure optimal patient outcomes.
Non-surgical interventions, such as the use of low-frequency rotary magnetic fields, have shown a favorable safety profile in clinical trials, with no severe toxicity observed over 6-12 weeks of treatment [PMID:29970658]. However, close monitoring for any emerging adverse effects remains crucial, even with well-tolerated therapies.
Prognosis & Follow-up
The prognosis for patients with metastatic malignant neoplasms in the stomach is generally guarded, with survival times often limited. Data from multiple randomized trials indicate that loss of appetite independently predicts poor survival, with a hazard ratio of 1.05 (95% CI: 1.03–1.06; p<0.0001) [PMID:29860861]. Survival analysis comparing patients who underwent palliative gastrectomy to those who did not reveals longer survival durations in the surgical group, with survival durations calculated from the time of surgery [PMID:28288593].
Outpatient palliative care referrals have been associated with significant improvements in end-of-life care outcomes compared to inpatient consultations, emphasizing the benefits of timely and appropriate palliative interventions [PMID:27185614]. The integration of chemotherapy with surgical interventions and radiation therapy, as highlighted by Liang et al. [PMID:31868545], significantly enhances prognosis, underscoring the potential for multimodal treatment strategies to improve survival outcomes.
Regular follow-up is crucial for monitoring disease progression, managing symptoms, and adjusting treatment plans as necessary. Despite advancements, patients often experience a fair quality of life with significant physical and psychological symptoms, indicating the ongoing need for comprehensive supportive care [PMID:22919864].
Special Populations
Gender differences in survival outcomes are notable, with females generally exhibiting a survival advantage over males in advanced cancer settings [PMID:7537907]. This observation suggests that gender-specific factors may influence treatment efficacy and patient response, warranting tailored approaches in clinical management. Additionally, programs like those at the Cleveland Clinic Foundation, which handle over 800 new patient consultations annually, are equipped to manage a diverse range of advanced disease states, including metastatic malignant neoplasms, highlighting the importance of scalable and adaptable care models [PMID:10923766].
Key Recommendations
These recommendations aim to provide a structured yet flexible framework for managing patients with metastatic malignant neoplasms in the stomach, balancing aggressive treatment options with compassionate palliative care.
References
1 Childs DS, Jatoi A. A hunger for hunger: a review of palliative therapies for cancer-associated anorexia. Annals of palliative medicine 2019. link 2 Hsu JT, Liao JA, Chuang HC, Chen TD, Chen TH, Kuo CJ et al.. Palliative gastrectomy is beneficial in selected cases of metastatic gastric cancer. BMC palliative care 2017. link 3 Hui D, Meng YC, Bruera S, Geng Y, Hutchins R, Mori M et al.. Referral Criteria for Outpatient Palliative Cancer Care: A Systematic Review. The oncologist 2016. link 4 Loera B, Molinengo G, Miniotti M, Leombruni P. Preclinical and Clinical Medical Student Attitudes Toward the Care of the Dying: Testing the 9-Item Version of the Frommelt Attitude Toward the Care of the Dying Scale. The American journal of hospice & palliative care 2023. link 5 Liang X, Zhu J, Li Y, Xu Y, Chen K, Lv L et al.. Treatment strategies for metastatic gastric cancer: chemotherapy, palliative surgery or radiotherapy?. Future oncology (London, England) 2020. link 6 Chen Z, Liu H, Wang H, Wu C, Feng H, Han J. Effect of low-frequency rotary magnetic fields on advanced gastric cancer: Survival and palliation of general symptoms. Journal of cancer research and therapeutics 2018. link 7 Abu-Saad Huijer H, Doumit M, Abboud S, Dimassi H. Quality of palliative care. Perspective of Lebanese patients with cancer. Le Journal medical libanais. The Lebanese medical journal 2012. link 8 Zhukovsky DS. A model of palliative care: the palliative medicine program of the Cleveland Clinic Foundation. A World Health Organization Demonstrations Project. Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer 2000. link 9 Donnelly S, Walsh D. The symptoms of advanced cancer. Seminars in oncology 1995. link
9 papers cited of 10 indexed.