Cancer Pain Relief Research Articles

Risk Factors for Polypharmacy in Elderly Patients With Cancer Pain.

Polypharmacy (PP) is a burden in elderly patients with cancer pain; however, risk factors for PP remain unclear. The purpose of this study was to investigate the risk factors for PP in this patient population. We retrospectively reviewed the medical charts of patients aged ≥65 years with cancer pain who were treated at Osaka University Hospital between February 2014 and June 2016 according to the World Health Organization 3-step ladder for cancer pain relief. We defined PP as ≥5 medications and conducted exploratory research to examine the association between PP and patient characteristics. Performance status (PS) was estimated according to the Eastern Cooperative Oncology Group system and is categorized as good PS (0-1) and poor PS (2-4). We reviewed 206 patients (122 men and 84 women) with a median age of 71 years (range, 65-89 years) and found that 174 patients (84.5%) had PP. In multivariate logistic analysis, PP was significantly associated with an increased number of comorbidities (odds ratio [OR]: 4.93, 95% confidence interval [CI], 2.57-11.42, P < .001), poor PS (OR: 4.50, 95% CI, 1.06-31.68, P = .039), and administration of an anticancer or molecular targeted drug (OR: 2.78, 95% CI, 1.13-7.16, P = .025). An increased number of comorbidities, poor PS, and administration of an anticancer or molecular targeted drug were considered risk factors for PP in elderly patients with cancer pain. Sharing these risk factors with medical staff will help reduce the occurrence of problems associated with PP.

Relief of Cancer Pain in Patients with Pancreatic Cancer

Pancreatic cancer is a dismal disease with a poor prognosis and is one of the most painful malignancies. Therefore, adequate pain control is essential to improving the patient's quality of life. Pain in pancreatic cancer has complex pathophysiologic mechanisms and different characteristics. The choice of pain management modalities should be individualized depending on the pain characteristics using a multidisciplinary approach. The treatment options available include medical treatment, chemotherapy, celiac plexus/ganglion neurolysis, radiotherapy, and endoscopic technique. This review discusses the medical and interventional options, leading to optimal pain management in patients with pancreatic cancer.

A novel technique of ultrasound-guided glossopharyngeal nerve block to relieve cancer pain.

A novel technique of ultrasound-guided glossopharyngeal nerve block to relieve cancer pain.

Application of Ultrahigh Doses of Morphine in Systemic Multiple Epithelioid Hemangioendothelioma without Addiction: A Case Report

Morphine is a potent opioid which is commonly used for relieving cancer pain with strong analgesic properties. Epithelioid hemangioendothelioma (EHE), a rare vascular tumor that can cause severe chronic pain, is usually diagnosed in a surgical biopsy. We describe ultrahigh doses of morphine used in a case of a 17-year-old male who suffered from severe chest pain with systemic multiple EHE. The total dosage of morphine was as high as 92,530 mg given within 164 days. However, we observed no indications that the patient was addicted.

Healthcare professionals' perceptions on the use of opioid analgesics for the treatment of cancer-related pain in Cyprus: A mixed-method study.

Objectives:Pain is considered the most common and debilitating symptom reported by patients affected by cancer, and opioids are at the front line for its effective management. However, the appropriate use of opioids can be limited by healthcare professionals’ perceptions on opioids. Therefore, the aim of this study was to explore their perceptions on the use of opioids medication.Methods:This was a study of sequential mixed-method design conducted in Cyprus. As part of the quantitative phase of the study, the Barriers to Opioid Analgesic Availability Test questionnaire was completed by 73 physicians randomly selected. In the qualitative phase, 28 healthcare professionals working in primary and secondary healthcare centers participated in two focus groups. They were asked to express their perceptions on the use of opioid analgesics for the treatment of cancer-related pain. Data were analyzed according to Colaizzis’ seven-stage phenomenological analysis.Results:The quantitative analysis showed that 69.85% of physicians acknowledge opiophobia as a main barrier to appropriate pain relief but also explicitly for cancer pain which is not adequately managed (45.19%). In terms of opioids availability, physicians stated that moderate to severe problems in opioids availability were mainly caused by their reluctance to prescribe opioids (49.3%) followed by the laws/regulations in place (41.08%). The qualitative analysis yielded the following six main themes: inadequate training of healthcare professionals in the use of opioid analgesics, inadequate patient/caregivers’ awareness of opioid analgesics, opiophobia in healthcare professionals, opiophobia of patients/caregivers, poor management of opioid analgesics by healthcare professionals and patients/caregivers, and ineffective pain relief with opioids.Conclusions:The lack of appropriate education is a significant barrier to opioids use in Cyprus. This is compounded by the attitudes and phobias of both healthcare professionals and the general public. In addition, there are barriers to opioid availability and unsatisfactory cancer pain relief.

Intrathecal betamethasone for cancer pain: A study of its analgesic efficacy and safety.

BackgroundA preliminary study has shown effective cancer pain relief by intrathecal betamethasone (ITB). However, further evidence is needed to support this new approach.MethodsCancer patients with opioid‐resistant pain received lumbar intrathecal administration of betamethasone 2 or 3 mg once a week for 28 days. Immediate and short‐term analgesia (using a percentage pain reduction scale and a numerical rating scale, NRS) and long‐term analgesia (using NRS) were assessed. Patients were classified into two groups according to the most painful site of metastasis: vertebral column and/or surrounding nerve plexus metastases (group A) and other metastases distal from the vertebral column (group B).ResultsA total of 104 patients received ITB. Pain relief was observed not only in the lower half but also in the upper half of the body. The proportion of group A patients who experienced immediate analgesia was 81% (47/58), which was significantly greater than that of group B (P < 0.001). A decrease in NRS scores 1 day after ITB administration was observed in significantly more patients in group A than in group B (P < 0.001). Long‐term analgesia was also recorded in a greater proportion of patients in group A than in group B in the 7‐day (59%, 38/64 vs 6%, 2/33) and 28‐day periods (71%, 40/56 vs 31%, 8/26) (P < 0.001). No adverse effects related to neurotoxicity were recorded.ConclusionIntrathecal injection of betamethasone produced analgesia for opioid‐resistant cancer pain, and may be a potent therapeutic option for intolerable pain from vertebral column and/or surrounding nerve plexus metastases.

Endovascular Denervation: A New Approach for Cancer Pain Relief?

PurposeTo evaluate the effects of endovascular denervation (EDN) on abdominal cancer pain relief. Materials and MethodsFrom April 2017 to February 2018, 7 cancer patients (2 males and 5 females) were enrolled in this study. The diagnoses of the patients included 3 pancreatic cancer, 2 cervical carcinoma, 1 cholangiocarcinoma, and 1 esophageal cancer with retroperitoneum lymph nodes invasion. Denervation was carried out at the abdominal aorta close to the origin of celiac artery and superior mesenteric artery with the use of a multielectrode radiofrequency ablation catheter with settings of time 120 seconds and temperature 60°C. The primary end point was improvement in pain scores. The secondary end points included change in quality of life, intake of narcotics, and the safety of EDN. ResultsAll of the patients experienced pain relief. The pain scores as measured by means of visual analog scores at 1, 2, 4, 8, and 12 weeks after the procedure were significantly lower than before the operation (P < .001). A > 4 score reduction was observed in all cases. A significant reduction in narcotics use within 3 months after the operation was also seen. The quality of life scores of the patients improved significantly (P < .005) with better sleep. No severe treatment-related adverse events or major complications were observed. ConclusionsEDN is a safe and effective means to alleviate pain caused by cancer and may serve as a new approach for cancer pain relief and palliative care.

Systematic review and meta-analysis on non-opioid analgesics in palliative medicine.

Non‐opioid analgesics are widely used for pain relief in palliative medicine. However, there is a lack of evidence‐based recommendations addressing the efficacy, tolerability, and safety of non‐opioids in this field. A comprehensive systematic review and meta‐analysis on current evidence can provide a basis for sound recommendations in clinical practice. A database search for controlled trials on the use of non‐opioids in adult palliative patients was performed in Cochrane Central Register of Controlled Trials (CENTRAL), MEDLINE, PsycINFO, and EMBASE from inception to 18 February 2018. Endpoints were pain intensity, opioid‐sparing effects, safety, and quality of life. Studies with similar patients, interventions, and outcomes were included in the meta‐analyses. Our systematic search was able to only identify studies dealing with cancer pain. Of 5991 retrieved studies, 43 could be included (n = 2925 patients). There was no convincing evidence for satisfactory pain relief by acetaminophen alone or in combination with strong opioids. We found substantial evidence of moderate quality for a satisfactory pain relief in cancer by non‐steroidal anti‐inflammatory drugs (NSAIDs), flupirtine, and dipyrone compared with placebo or other analgesics. There was no evidence for a superiority of one specific non‐opioid. There was moderate quality of evidence for a similar pain reduction by NSAIDs in the usual dosage range compared with up to 15 mg of morphine or opioids of equianalgesic potency. The combination of NSAID and step III opioids showed a beneficial effect, without a decreased tolerability. There is scarce evidence concerning the combination of NSAIDs with weak opioids. There are no randomized‐controlled studies on the use of non‐opioids in a wide range of end‐stage diseases except for cancer. Non‐steroidal anti‐inflammatory drugs, flupirtine, and dipyrone can be recommended for the treatment of cancer pain either alone or in combination with strong opioids. The use of acetaminophen in the palliative setting cannot be recommended. Studies are not available for long‐term use. There is a lack of evidence regarding pain treatment by non‐opioids in specific cancer entities.

The Role of South-to-South Partnerships in Developing Cancer Services in Africa

Background and context: Despite being a growing public health concern in Africa, access to effective cancer treatment and pain relief is still limited in sub-Saharan Africa. The African Palliative Care Association (APCA) in collaboration with the American Cancer Society and the Ministry of Health of Swaziland have successfully implemented a South-to-South partnership which has facilitated the development and operation of a cancer unit in Mbabane National Hospital. Although the cancer burden continues to rise in Africa, many countries do not have established oncology services. They rely on cancer treatment, care and support through referral to neighboring countries or overseas, which is costly for governments and poses multiple challenges for patients and their families. Until recently, Swaziland has relied on cancer treatment and care in South Africa. This paper presents a model where the Uganda Cancer Institute (UCI) in Uganda has been facilitated to support the establishment of a cancer unit in Swaziland. Aim: The intervention aimed at providing technical assistance to the Ministry of Health of Swaziland to initiate and operate a cancer unit in Mbabane Government Hospital through a formal arrangement with the UCI. Strategy/Tactics: The planning and execution of activities was done by a tripartite of APCA, Uganda Cancer Institute a government entity and the Swazi Ministry of Health. Program/Policy process: Over a period of one year (Decemeber 2016 to December 2017) APCA, through a grant from the ACS formerly engaged the UCI to support the initiation and operation of a cancer unit in Swaziland. This was through expert exchange visits through which on-job training and mentorship was provided to a team of staff at Mbabane Government Hospital, with coordination by the Swaziland Ministry of Health. Experiential visits to Uganda were also organized for the lead pharmacist in Swaziland and a doctor to enable them set up and run a cancer unit in their country. The exchange visits provided a forum for both observation and application of knowledge and skills. Outcomes: A cancer unit was successfully established at Mbabane Government Hospital in Swaziland, which now provides services for patients, with breast cancer and expanding to include other cancers. The Swaziland Ministry of Health has been key to the success of this development and continues to identify human, financial and other resources to sustain the cancer unit. To date 69 patients have successfully undergone chemotherapy: 43 breast cancer, 22 Kaposi sarcoma, 2 colorectal cancer, 1 bladder cancer, 1 multiple myeloma. 21 health care workers were trained on cancer management; 9 doctors, 7 nurses and 5 pharmacists. What was learned: There are many opportunities for South-to-South partnership to support the establishment or improvement of cancer care. This model implemented in Swaziland can be replicated in other African countries. Documenting the model for replication in other countries is recommended.

Safety profile of prophylactic rescue dosing of immediate-release oral opioids in cancer patients

BackgroundAppropriate prophylactic rescue dosing of opioids is considered effective for cancer pain relief, but no study has reported the safety of such prophylactic rescue. We compared the safety of prophylactic rescue dosing of immediate-release oral opioids with that of regular rescue dosing.MethodsThe study included 103 cancer patients who used either immediate-release morphine syrup or immediate-release oxycodone powder at Shizuoka Cancer Center between January and December 2016. Patients were divided into those who mostly used (prophylactic group) and those who never used (regular group) prophylactic rescue doses of opioids and compared the incidence of adverse events (AEs). We also investigated whether the prophylactic rescue dose negatively interfered with its objective activity, such as meals.ResultsIncidence of each AE in the prophylactic versus regular groups was as follows: somnolence, 20.6% versus 14.3%; nausea, 22.1% versus 17.1%; constipation, 19.1% versus 20.0%; urinary retention, 1.5% versus 2.9%; delirium, 4.4% versus 8.6%; and pruritus, 0% versus 2.9%. No serious AE associated with prophylactic rescue dosing was observed. No significant difference was observed in the incidence of any AE between the two groups (p > 0.05, Fisher’s exact test). No AE interfered with the objective activity of the prophylactic rescue dose.ConclusionIncidence of AEs associated with prophylactic rescue dosing is not different from that associated with regular rescue dosing. In addition, the prophylactic rescue dose did not adversely affect its objective activity, suggesting the safety of appropriate prophylactic rescue dosing was similar to that of regular rescue dosing.Trial registrationThe study approval number in the institution; H29-J30–29–1-3. Registered June 5, 2017.

Single-Nucleotide Polymorphisms in TAOK3 Are Associated With High Opioid Requirement for Pain Management in Patients With Advanced Cancer Admitted to a Tertiary Palliative Care Unit

PurposeDifferent amounts of opioid are required for the relief of cancer pain in different individuals, raising the possibility that genetic factors play a role. We tested the hypothesis that genetic variations in the TAOK3 (TAO kinase 3, encoding serine/threonine-protein kinase) explain some of the interindividual variations related to the morphine-equivalent daily dose (MEDD) in patients with cancer. Experimental DesignWe selected two single-nucleotide polymorphisms (SNPs) in the TAOK3, reported earlier to associate with higher MEDD in postoperative pain based on genome-wide association study. We investigated their association with MEDD in Canadian patients with cancer (n = 110) admitted to a tertiary palliative care unit. SNPs analyzed were rs1277441 (C/T, C = minor allele) and rs795484 (A/G, A = minor allele). ResultsMinor allele frequencies in our population were 0.29 (rs1277441) and 0.28 (rs795484). These SNPs were in perfect linkage disequilibrium (r2 = 0.97). SNPs in TAOK3 showed a significant association with mean MEDD ≥800 mg. For rs795484, MEDD values ≥800 mg occurred in patients who were GG (7%), GA (18%), and AA (57%) (P = 0.004; Fisher's exact test); similar results were obtained for rs1277441. Homozygous variants for either SNP had received higher numbers of different opioids (P = 0.021). ConclusionIn this cohort of patients with advanced cancer pain, TAOK3 SNPs were associated with opioid doses. This result supports the original findings from a GWAS in postoperative patients. The proportions of variant homozygotes (8.2% of patients) and their requirement for higher doses of opioids would appear potentially clinically important and should be validated in further studies.

The effect of a coix seed oil injection on cancer pain relief.

Pain is one of the most commonly reported symptoms in patients with advanced cancer, but is still less than optimally treated. The effect of traditional Chinese medicine in cancer pain treatment is nowadays getting more and more attention. To investigate the effect of a coix seed oil injection on cancer pain relief in a cancer center in a tertiary hospital in China. Patients in the treatment group received a coix seed oil injection for 2weeks, while patients in the control group received equivalent 0.9% saline. The numeric rating scale was used to assess the pain level. The Quality of Life Questionnaire-Core 30 was used to assess life quality. The adverse drug reactions during the treatment process were observed. Patients in the coix seed treatment group had significantly superior efficacy on pain control over those in the control group. Coix seed therapy significantly improved patients' scores reflecting by the Quality of Life Questionnaire-Core 30 (QLQ-C30) scale. In addition, the occurrence of adverse reactions such as constipation and nausea in the treatment group was significantly lower than that in the control group. The coix seed oil injection effectively reduced the pain level of cancer patients, significantly improved their life quality, and had no obvious adverse effects.

Opioid analgesics prescription in people with and without cancer in France.

According to World Health Organization recommendations, opioids prescription is a key aspect of improvement in cancer pain relief. However, studies on opioids prescription in France are scarce. This study aimed principally to investigate the impact of cancer on opioids prescription and then to identify factors associated with this prescription, focusing on patients& characteristics impact. We matched the following two cohorts: cancer survivors (N = 6,760) and individuals without cancer (N = 6,760). Using French health insurance databases, we compared the prevalence of prescribed opioids in 2009-2015 in people with and without cancer and we applied afterwards conditional Poisson regressions to estimate relative risks for monthly opioids prescription. For cancer survivors only (N = 3,055), multivariate negative binomial regressions were performed to identify factors associated with opioids prescription. Cancer was associated with a higher analgesics prescription in the cancer population. While Step II and III opioids prescription decreased over time, the latter remained marginal and tended to stabilize. Older people were most adversely affected by underprescription of opioids, especially Step III opioids. Furthermore, although the matched case/control study suggested that men were prescribed opioids more often than women, multivariate analysis did not support this finding. The inconsistency between our findings and existing literature regarding both opioids prescription trends and postdiagnosis pain chronicity in cancer survivors over the medium term suggests possible changes in pain perception and the evolution of cancer pain management strategies. Further research should explore these hypotheses and investigate patient characteristics& effect in cancer pain management.

Clinical Anatomy of Blockade of the Pterygopalatine Ganglion: Literature Review and Pictorial Tour Using Cadaveric Images.

Pterygopalatine ganglion block (sphenopalatine ganglion block) is a well-known procedure for treating cluster headache and for relieving cancer pain. In this review, the history and anatomy of the pterygopalatine ganglion are discussed, and images, including computed tomography and endoscopy, are presented to improve understanding of the clinical anatomy of the ganglion regarding the block procedure.

Manejo de conductas aberrantes inducidas por opioides en una consulta externa de «cuidados paliativos precoces»

ObjectiveTo audit the quality of the prevention, detection and management of aberrant opioid-induced behaviours (AB) in patients attending our Early Palliative Care outpatient clinic. MethodsWe report data belonging to patients with detected AB who participated in a second descriptive retrospective observational study, which was conducted on 100 consecutive cancer patients attending our outpatient clinic between November 2015 and June 2016. The nature and characteristics of the Early Palliative Care clinic, the methodology employed to perform the clinical audit (sample size and selection, variables chosen etc.) have already been described for the first audit and published elsewhere. ResultsOut of 100 patients in our audit sample, 52 patients were taking prescribed opioids chronically and 10 out of them presented AB whereas only 4 fulfilled DSM-V criteria for opioid addiction –therefore, in our series prevalence of AB was 19.2% and opioid addiction 7.7%. Common characteristics of patients with AB were: younger age (median 58 years), presence of known risk factors for AB (basically substance use disorder and psychiatric pathology), wide range of opioids used for basal pain (oral morphine extended release, oral oxycodone extended release, oral hydromorphone extended release, fentanyl transdermal, buprenorphine transdermal), large dose of opioids used (morphine equivalent daily dose 259.5mg) and long opioid treatment duration (median, 2.75 years). Eighty percent of the patients with AB were taking rapid onset opioids as rescue doses for breakthrough cancer pain, and rapid onset opioids were involved in the insidious development of the 4 addiction cases. Urine drug screens and screening – questionnaires for opioid misuse/abuse risk were found to be unhelpful in the prevention and detection of AB. An essential part in our therapeutic measures was the performing of opioid rotations to buprenorphine and/or methadone in 70% of the patients – these opioid rotations were found to be efficacious pain-wise and in the management of the AB, but also complicated and distressing for the patients, several of whom perceived persistent withdrawal symptoms. In 3 cases both rapid onset opioids and immediate release opioids, as rescue doses for breakthrough cancer pain, had to be strictly forbidden. Forty percent of the AB patients are still followed at our Early Palliative Care outpatient clinic, and we expect a prolonged follow-up given the fact that they are also long cancer survivors. DiscussionOur data support the emerging relevance of AB in the chronic cancer pain and breakthrough cancer pain population. In our series the prevalence of AB and opioid addiction double previous published figures. This might be explained by the widespread adequate medical use of opioids in our environment, but also might reflect the fact that it is very easy to send these complex cases early to our Early Palliative Care outpatient clinic. Based on our own clinical experience, it seems that good clinical practice performed by highly qualified professionals has been the key to our success in controlling the AB. We have found urine drug screens and screening questionnaires, suggested in the literature, not to be helpful. On the other hand, clinical expertise in the detection of AB and in performing complex opioid rotations to buprenorphine and/or methadone, have been key to analgesic success and in controlling AB, just as we had expected previously in our current internal protocol. ConclusionThe unquestionable emergence of AB seems to be, to a certain extent, a relatively unavoidable side – effect of adequate opioid consumption for the relief of cancer pain. Our data support our conviction that the problem is manageable with expert clinical practice. Therefore, we believe the answer to the problem is not to increase restrictions on cancer patients to access opioids (including rapid onset opioid) in order to avoid an expansion of AB, but to increase our efforts in order to prevent these behaviours, and once detected to organize adequate specialized care.

Cancer pain management and the opioid crisis in America: How to preserve hard-earned gains in improving the quality of cancer pain management.

Cancer pain remains a feared consequence of the disease and its treatment. Although prevalent, cancer pain can usually be managed through the skillful application of pharmacologic and nonpharmacologic interventions. Unfortunately, access to these therapies has been hampered by interventions designed to contain another serious public health problem: the opioid misuse epidemic. This epidemic and the unintended consequences of efforts to control this outbreak are leading to significant barriers to the provision of cancer pain relief. Oncologists and other professionals treating those with cancer pain will require new knowledge and tools to provide safe and effective pain control while preventing additional cases of substance use disorders (SUDs), helping patients in recovery to maintain sobriety, and guiding those not yet in recovery to seek treatment. How do these 2 serious epidemics intersect and affect oncology practice? First, oncology professionals will need to adopt practices to prevent SUDs by assessing risk and providing safe pain care. Second, oncology practices are likely to see an increased number of patients with a current or past SUD, including opioid misuse. Few guidelines exist for the direct management of pain when opioids may be indicated in these individuals. Third, modified prescribing practices along with the education of patients and families are warranted to prevent the exposure of these medications to unintended persons. Finally, advocacy on behalf of those with cancer pain is imperative to avoid losing access to essential therapies, including opioids, for those who might benefit. Cancer 2018;124:2491-7. © 2018 American Cancer Society.

A Chinese medicine warm compress (Wen Jing Zhi Tong Fang), combined with WHO 3-step analgesic ladder treatment for cancer pain relief: A comparative randomized trial.

Introduction:This study aimed to assess the effectiveness of Chinese medicine warm compress (CMWC) on back meridians in relieving cancer pain, reducing adjuvant analgesic doses and adverse reactions, and improving the quality of life (QOL).Methods:A total of 62 patients (age range 39–82 years) diagnosed with a malignant tumor and suffering from cancer-related pain were randomly divided into a treatment group (group A) and a control group (group B) (n = 31 for each). The patients in both groups were administered appropriate drugs for 2 cycles of 7-day treatments according to the World Health Organization (WHO) 3-step ladder for cancer pain relief in adults. In addition, a CMWC was given to patients in group A. Pain relief was assessed using the visual analogue scale (VAS) at various time points before and after interventions in each group. Alteration of analgesic doses, adverse reactions, performance status (PS), and QOL were evaluated and any differences between groups A and B evaluated.Results:VAS scores at various time points after treatment were significantly decreased compared with the baseline level in group A. Overall response rate was significantly improved in group A compared with group B (70.97% vs 29.03%, P < .001). Significant differences in clinical pain relief efficacy in various locations were found in group A after treatment vs before treatment (P < .05). Adjuvant analgesic doses were significantly changed in the control group compared to the treatment group after 1 cycle of 7-day treatment (22.58% vs 12.90%, P = .023). QOL were improved more in group A than in group B (3.00 ± 4.23 vs −2.06 ± 2.38, P < .001). Significantly reduced adverse reactions were observed after treatment of group A compared with group B in terms of the overall incidence (3.23% vs 80.65%, P < .05) or incidence of constipation (3.23% vs 77.42%, P < .05).Conclusions:The application of CMWC on back meridians combined with WHO 3-step analgesic ladder treatment was effective in relieving cancer-related pain with reduced doses, less adverse reactions, and improved QOL.

Clinical analysis of electroacupuncture and multiple acupoint stimulation in relieving cancer pain in patients with advanced hepatocellular carcinoma.

The objective of this study is to investigate the clinical efficacy and safety of electroacupuncture and multiple acupoint stimulation in relieving cancer pain in patients with advanced hepatocellular carcinoma. Sixty-five cases of advanced hepatocellular carcinoma with cancer pain were selected in our hospital and were divided into electroacupuncture multiple acupoint stimulation group (electroacupuncture group) (n = 32) and fentanyl transdermal patch analgesia group (control group) (n = 33) according to analgesic methods and intentions. In the electroacupuncture group, electric acupuncture treatment was administered at different acupoints, including Baihui, Quchi, Neiguan, Xuehai, Zusanli, and Sanyinjiao acupoint, once a day for 7 days. In the control group, a fentanyl transdermal patch was placed on the upper left arm every 3 days and replaced with a continuous external paste once for 7 days. Pain scores in the two groups before and during the treatment were evaluated with a visual analog scale (VAS), and adverse reactions during the treatment were recorded. The VAS pain score of the electroacupuncture group was significantly decreased on day 3 (P < 0.05), but the pain scores were not significantly different (P > 0.05) between the two groups 4 days after treatment. For treatment-related side effects, there were 3 cases of subcutaneous hemorrhage in the electroacupuncture group; 1 case of skin rashes and 3 cases of nausea and vomiting in the control group. The incidences of adverse reactions in the two groups were 9.4% and 12.1%, respectively, without significant difference (P > 0.05). Cancer pain in patients with advanced hepatocellular carcinoma can be alleviated with electroacupuncture and multiple acupoint stimulation, but the onset pain relief was slow. To improve the analgesic effects of this technique, the combination of various analgesic methods should be necessary in early stage of the treatment.

Inhibitory Effect of Viola odorata Extract on Tumor Growth and Metastasis in 4T1 Breast Cancer Model.

Viola odorata as a medical herb is used in liver disorders and relieving cancer pain. In the present study, the cytotoxic, antioxidant, and anti-metastatic properties of Viola odorata hydro-alcoholic extract (VOE) were investigated in 4T1 breast cancer model. After treatment of 4T1 breast cancer cells with VOE, cell viability was measured by MTT assay. The implanted mice were treated with different concentration of VOE (50, 150 and 250 mg/kg) for 21 days. Levels of lactate dehydrogenase (LDH), γ -glutamyl transferase (GGT), alkaline phosphatase (ALP), carcinoembryonic antigen (CEA) and cancer antigen 15-3(CA15-3) in serum, and also catalase (CAT) and superoxide dismutase (SOD) activities in tumor tissue were measured. Metastatic rate was investigated in liver, spleen and lung tissues. VOE decreased cell viability of 4T1 cells, significantly. VOE significantly inhibited the cell proliferation, but not vasculature in the tumors that revealed by immunohistochemical analysis for Ki-67 and CD31 expression, respectively. VOE increased the Bax/Bcl-2 ratio in VOE250-treated group compared to control group. Serum analysis showed that treatment with 250 mg/kg of VOE significantly reduced LDH (not ALP and GGT) levels compared to controls. No linear correlation was found between the values of CEA and CA15-3 with tumor size. The rate of CAT activity was increased in VOE250-treated rats whereas, CAT and SOD activities were reduced in VOE50 group. VOE250 significantly decreased the metastatic rate in liver and lung compared to the other doses of VOE. Consequently, Viola odorata has cytotoxic effects on 4T1 cells and affects antioxidant activity and metastasis in breast cancer.

Cinobufacini Injection Improves the Efficacy of Chemotherapy on Advanced Stage Gastric Cancer: A Systemic Review and Meta-Analysis.

Gastric cancer has a high morbidity and mortality. Chemotherapy regimens are routine advanced stage gastric cancer (AGC) treatment protocols, but most of these drugs have side-effects such as myelosuppression and gastrointestinal disorders. Cinobufacini, an extractive from TCM, could suppress cell proliferation and inhibit gastric cancer. In this study, we comprehensively reviewed the literature on the efficacy comparison between Cinobufacini injection combined with chemotherapy and chemotherapy solely used in AGC treatment. We extracted data for from six electronic databases to evaluate the efficacy of Cinobufacini injection on AGC patients. Twelve studies with a total of 853 patients were finally included in our study. The results indicated that Cinobufacini injection could increase response rate and disease control rate of chemotherapy on AGC, improve the life quality of AGC patients, increase leukocytes, improve anemia, improve hand-foot syndrome induced by chemotherapy, and relieve cancer pain. This study has its own limitations that prevented us from drawing a definite conclusion and more well-designed clinical trials of TCM are needed.