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  • Title: The effects of early or late neurolytic sympathetic plexus block on the management of abdominal or pelvic cancer pain.
    Author: de Oliveira R, dos Reis MP, Prado WA.
    Journal: Pain; 2004 Jul; 110(1-2):400-8. PubMed ID: 15275792.
    Abstract:
    Neurolytic sympathetic plexus block (NSPB) has been proposed to prevent the development of pain and improve the quality of life of patients with cancer, thus questioning the WHO protocol that proposes the use of invasive methods only as a final resort. This study evaluates the pain relief, opioid consumption and quality of life provided by the use of NSPB in two different phases of cancer pain and compares them with that provided by pharmacological therapy only. Sixty patients with abdominal or pelvic cancer pain were divided into three groups and observed for 8 weeks. In group I, neurolytic celiac (NCPB) or superior hypogastric plexus block (SHPB), or lumbar sympathetic ganglion chain block (LSGCB) was performed with alcohol in patients using NSAID and a weak oral opioid or morphine (dose</=90 mg/day) and reporting VAS>/=4. In group II, NCPB, SHPB or LSGCB were performed on patients using NSAID and morphine (dose>/=90 mg/day) and reporting VAS>/=4. The patients of group III received pharmacological therapy only. The patients of groups I and II had a significant reduction of pain (P < 0.004), opioid consumption (P < 0.02) and a better quality of life (P < 0.006) than those of group III, but no significant differences between groups I and II were seen in these aspects. Opioid-related adverse effects were significantly greater in group III (P < 0.05). The occasional neurolysis-related complications were transitory. The results suggest NSPB for the management of cancer pain should be considered earlier in the disease.
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