Exacerbation of Emesis and Dysphagia with Oxycodone Dose Escalation in a Patient with Lung Cancer, Possibly Associated with Complicated Esophageal Achalasia

<p>Objective: We describe a case of lung cancer complicated with esophageal achalasia (EA), which was successfully treated with endoscopic pneumatic dilation (EPD). Case: A 66-year-old woman was admitted to our hospital because of frequent episodes of emesis and dysphagia after receiving an escalating dose of sustained release oxycodone (SRO) for cancer-related multifactorial back pain. She had been diagnosed with EA and treated with EPD at the age of 50. Her symptoms were refractory to the conventional anti-emetic agents such as prochlorperazine and metoclopramide. Computed tomography imaging showed marked dilatation of the esophagus with food residue. We diagnosed EA based on the presence of rosette-like esophageal folds on endoscopy and narrowing of the esophagogastric junction on esophagography, and subsequently performed EPD, which alleviated the symptoms. Discussion: The effects of opioids on esophageal motility have not been elucidated thus far. Recent studies using high-resolution manometry reported that long-term use of opioids was associated with esophageal dysmotility similar to that observed in EA. Although we have no evidence to directly demonstrate the causal relationship between the use of SRO and anti-emetic agents and EA, we speculate that our patient’s symptoms might be associated not only with SRO-related emesis during the gradual worsening of EA, but also partly with the SRO-induced esophageal dysmotility and the constrictive effect of dopamine D₂ receptor antagonists on the lower esophageal sphincter. Care must be taken to avoid drug-induced esophageal motor dysfunction, which might lead to deteriorate EA. </p>

Pigmentation by transdermal fentanyl patch

<b>Introduction</b>: There has been no case report in which hyperpigmentation developed on the skin area where a transdermal fentanyl patch was applied in a patient. <b>Case report</b>: A 43-year-old man with recurrence of postoperative rectal cancer was treated by cetuximab plus irinotecan and panitumumab plus FOLFIRI. For cancer pain, transdermal fentanyl patch (Fentos®) was administered, and radiation from behind was performed. Hyperpigmentation then appeared on the chest and the abdominal skin sites where the patches were applied. The hyperpigmentation nearly disappeared four months after the fentanyl patch was discontinued. <b>Discussion</b>: The cause of the pigmentation was possibly due to post inflammatory hyperpigmentation secondary to contact dermatitis. It was desirable to conduct patch test and skin biopsy for making an accurate diagnosis. <b>Conclusion</b>: We should pay a careful attention to hyperpigmentation of the skin where a transdermal fentanyl patch is applied.

Mirtazapine provided remarkable relief for refractory nausea and vomiting by sunitinib and oxycodone in a patient with renal cancer

<b>Introduction</b>: Mirtazapine is a noradrenergic and specific serotonergic antidepressant (NaSSA) and the previous reports show that may reduce nausea by inhibition of the serotonin 5-HT3receptor. <b>Case report</b>: A 38-year-old woman with advanced renal cancer with distant metastases was administered by sunitinib and oxycodone. Refractory nausea and vomiting developed during the course and mirtazapine at a daily dose of 1.875 mg was begun. The patient's nausea improved during the next day, and furthermore, by increasing the daily dose to 3.75 mg, vomiting was also improved on the third day. The therapy could be continued without withdrawal of sunitinib and oxycodone due to digestive symptoms. Although somnolence might be induced at a daily dose of 15 mg, the present low-dose mirtazapine could improve digestive symptoms without somnolence. <b>Conclusion</b>: We conclude that low-dose mirtazapine is one effective option for refractory nausea and vomiting during administration of sunitinib and oxycodone.

Successful Pain Control in Cancer Patient on Palliative Therapy by Partial Opioid Rotation / 日本農村医学会雑誌

  Our palliative care team intervened in a patient with sciatica resulting from metastasis to sacral bone after surgery for rectal cancer. Rapid pain control and a change in the route of rescue drug administration from the stoma were needed. Partial opioid rotation was performed. The dose of 25.2 mg in 72 hours in a transdermal fentanyl patch decreased to 16.8 mg in 72 hours, and the dose of 3.6mg in an hour by continuous intravenous injection of morphine was added. The change in the rescue root to intravenous administration by a patient-controlled analgesia pump gave the patient relief from his pain. He was able to attend his daughter's wedding. His family were all pleased with the relief provided. The advantages of this partial opioid rotation are summed up in the following three points: (1) The required time is relatively short; (2) It can be expedient for analgesia due to the addition of different opioids; and (3) The partial opioid rotation produces fewer adverse effects than a full opioid rotation. Adjustment of the amount of drugs for pain relief in cancer patients is important with the situations of the patient and the family taken into consideration fully.

Low-Dose Mirtazapine Effecting the Remarkable Improvement of Nausea in a Patient with Primary Hepatocellular Carcinoma: A Case Report / 日本農村医学会雑誌

  The case was a man in his 80s, who had been in home care with primary hepatocellular carcinoma before hospitalization. He suffered nausea and appetite loss. However, hypercalcemia in laboratory data, brain metastasis on head CT and MRI, and intestinal obstruction or dilatation on abdominal CT, were not revealed. Upper gastrointestinal endoscopy detected no mechanical abnormality after admission to hospital and medical treatment with 3.75mg/day of mirtazapine was started. The dietary intake increased on the following day of the administration and nausea and appetite loss were improved, so the patient was discharged. In conclusion, low-dose mirtazapine was considered to be one of the effective therapeutic agents for nausea from unknown causes in cancer patients.

Success in Pain Management by Switch from Gabapentin to Pregabalin: A Case of Lung Cancer / 日本農村医学会雑誌

  The patient was a woman in her 80s, who was referred to the palliative care team in our hospital for pain due to bone metastases from lung cancer. Although gabapentin and ifenprodil tartrate were administrated in addition to opioids and loxoprofen sodium, and the dose of opioids was increased, pain was not relieved remarkably. A switch from gabapentin to pregabalin brought remarkable pain relief. Before the internal use of pregabalin, the patient was often seen lyiing in bed because of pain. However, by pregabalin, she began to walk, pushing her wheelchair and smile often. Her ability to perform the basic activities of daily living was improved. The switch from gabapentin to pregabalin was one effective option when an analgesic adjuvant for cancer pain was chosen.

Alleviation of Symptoms by Palliative Care Team in Two Cancer Patients Receiving Chemotherapy / 日本農村医学会雑誌

  One patient was intervened by our palliative care team (PCT) to relieve neuropathic pain due to postoperative recurrence of rectal cancer. The dosage controlled-release oxycodone was increased, analgesic adjuvant drugs were changed and the administration of betamethasone were started. Furthermore, the number of times the patient took controlled-release oxycodone increased two to three times a day. These changes in medication resulted in relief of symptoms. Cetuximab therapy was given twice during the course. The other patient was intervened by the PCT for right upper limb pain and dyspnea due to postoperative recurrence of breast cancer. Morphine sulfate hydrate and analgesic adjuvant were additionally given. As pain increased three days after the administeration of transdermal fentanyl patches, the patches were changed every other day, instead of every three days. FEC100 therapy was given twice during the course. In the present two cases, the PCT was intervened with great zeal and rapid relief of symptoms resulted. In the meantime chemotherapy proceeded uneventfully. We thought that trust of the chief doctor in the PCT was most important for effective intervention.