ReviewCancer surgery: how may anesthesia influence outcome?
Section snippets
Background
Cancer treatment is evolving as we learn more about the molecular basis of cancer and new therapeutic targets are discovered. However, despite the use of radical surgery, chemotherapy and radiotherapy, and new hormonal and immunological treatments, recurrences and metastases continue to appear.
Surgery is the main treatment for potentially curable solid tumors, but most cancer-related deaths in patients who have received previous surgical treatment are caused by metastatic disease. It was first
Surgery, surgical stress, and cancer progression
Some authors, such as Demicheli et al [1], demonstrated that surgery itself plays a fundamental role in cancer progression and metastatic recurrence. Nearly a century ago, Tizzer [2] reported that surgery induced tumor growth in animals inoculated with cancer cells. Van der Bij et al [3] following their survey postulated that blood vessel integrity in the liver is compromised after abdominal trauma, resulting in enhanced extracellular matrix exposure, which enables tumor cell adhesion and
General anesthetics and cancer progression
Anesthetic and analgesic agents administered during surgery might influence cancer cell activity. Some specific techniques have been linked with tumor recurrence and long-term outcome [8]. Melamed et al [15] demonstrated in rat models that some anesthetics (eg, ketamine, thiopental, halothane, but not propofol) increase the probability of tumor metastasis, apparently by suppressing NK cell activity. Ketamine was the most deleterious, and its effects were prevented by peripheral blockade of
Perioperative opioids and cancer progression
Opioids are the primary drugs used in perioperative pain management, and their analgesic effect is beneficial in reducing pain and its consequent surgical stress. There is a growing interest in investigating the relationship between opioids and tumor progression, although the results obtained thus far are controversial.
Perioperative opioids may produce cellular and humoral immunosuppression. Research data have demonstrated that opioids have a suppressive effect on phagocytic, NK, B, and T cells
Local-regional anesthesia and cancer surgery
Combining regional and general anesthesia in major surgery has become common practice in many institutions and is expected to reduce the requirement for inhaled general anesthetics and opioids. Combined or given separately, regional anesthesia attenuates the neuroendocrine stress response to surgery and avoids perioperative immunosuppression.
An animal study demonstrated that regional anesthesia and analgesia reduced the metastatic burden in animals inoculated with adenocarcinoma cells after
Cellular effects of LAs: apoptosis activation, migration inhibition, and cancer cell proliferation
LAs have been shown to affect certain tumor cells' vital cycle and processes critical for metastasis, such as apoptosis, migration, and proliferation (Table 2).
Hollman and Durieux [81] have suggested that the antimetastatic effects of LAs are due to their systemic actions. LAs show pleiotropic effects that are unrelated to sodium channel blockade but include neuroprotective, anti-inflammatory, bronchodilator, antithrombotic, and anti-infectious activity. Yardeni et al [58], in a survey
Substance P and cancer
Substance P (SP) is a neuropeptide that belongs to the tachykinin family, facilitating pain through activation of the neurokinin 1 (NK-1) receptor. The NK-1 G protein-coupled receptor has widespread distribution in the central nervous system and in peripheral tissues. There are numerous studies suggesting that this receptor system could play an important role in the development of cancer. It is known that SP has a mitogenic action on several human cancer cell lines (eg, neuroblastoma, glioma,
Conclusion
We have reviewed how anesthesia may influence the outcome of cancer surgery. Inhaled anesthetics induce immunosuppression and activate the inflammatory cascade, whereas propofol has a protective action. Opioids might promote cancer recurrence and metastasis, as demonstrated in vitro and in animal studies. Some clinical retrospective publications also suggest an improvement in survival by procedures that reduce perioperative morphine dosing.
Although beyond the scope of this review, it is
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2022, Critical Reviews in Oncology/HematologyEffect of pectoral nerve block type II under general anesthesia on the immune function of patients with breast cancer
2020, American Journal of SurgeryCitation Excerpt :In addition to its inhibitory effects on immune system, surgery was experimentally and clinically found to be associated with increased angiogenesis and promoted metastasis.3 Anesthetics such as opioids were also found to suppress cell-mediated immunity21 and promote tumor development and metastasis.22 In a rat model, remifentanil was found to repress NK cell activity and proliferation of lymphocyte.23
Anesthesia in oncology patient
2023, Revista Chilena de Anestesia
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