Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0699790 (colon cancer)
 28,837 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

An 85-year-old man who had undergone a right hemicolectomy for colon cancer presented with severe hypothyroidism and hoarseness 21 months after the operation. The serum thyrotropin (TSH) was markedly elevated to 118.14 microIU/mL and serum free thyroxine (fT4) level was markedly suppressed to 0.34 ng/dL. Symptoms of hoarseness and neck swelling were already evident 4 months prior at which time tests for normal thyroid function were performed. The patient was referred due to aggravated pain on his diffusely enlarged hard goiter. An enlarged thyroid with some calcification was noticed in the neck ultrasonography with multiple cervical lymphadenopathies. Core biopsy of the thyroid gland showed invasion of poorly differentiated adenocarcinoma cells. Immunohistochemical studies showed positive staining only for carcinoembryonic antigen (CEA). There were multiple lung parenchymal nodules and adrenal masses at the time of evaluation. The patient was started on palliative chemotherapy with thyroid hormone replacement and gradually became euthyroid. From these findings and the clinical observations, thyroid metastasis with hypothyroidism developing acutely from metastatic colon adenocarcinoma was diagnosed.
 ...
PMID:Severe hypothyroidism induced by thyroid metastasis of colon adenocarcinoma: a case report and review of the literature. 1671 41

Non-steroidal anti-inflammatory drugs are widely used for the treatment of pain and inflammation by inhibiting the formation of prostaglandins. However, their use is limited by their side-effects, including gastrointestinal, renal function, cardiovascular and platelet function. Cyclooxygenase activity is the principal target for the action of non-steroidal anti-inflammatory drugs. Two isoforms of cyclooxygenase have been characterized: (i) cyclooxygenase-1, which is found in many tissues and is generally constitutively expressed and synthesizes prostanoids that mediate homeostatic functions; and (ii) cyclooxygenase-2, the inducible isoform, which is mainly expressed at sites of injury or inflammation and synthesizes prostanoids that mediate inflammation, pain and fever. These findings led to the development of selective cyclooxygenase-2 inhibitors, with comparable anti-inflammatory and analgesic properties to traditional non-steroidal anti-inflammatory drugs, but with significantly fewer side-effects. However, these new selective cyclooxygenase-2 inhibitors are not risk free, and care should be taken when using these drugs, especially with elderly patients with multiple medical problems. Finally, the future is bright for the broader usage of these agents in the treatment of diseases other than inflammation and pain, such as Alzheimer's disease, colonic polyp and colon cancer, just to name a few.
 ...
PMID:Cyclooxygenase-2 and antagonists in pain management. 1701 41

Pancreatic cancer is the fourth leading cause of death due to cancer. The most common cancer in the pancreas is ductal adenocarcinoma. Pancreatic cancer is characterized by alterations in K-Ras, INK4a, Tp53 and SMAD4. Similar to colon cancer a cancer progression model for pancreatic cancer has been proposed. The precursor lesions are called pancreatic intraepithelial neoplasia. Patients with tumors in the head of the pancreas may present deep jaundice without pain. Multidetector CT incorporating dual-phase imaging in the arterial and venous phases of enhancement is the preferred imaging modality for the diagnosis and staging of pancreatic cancer. Gemcitabine is still the standard for unresectable locally advanced disease or distant metastasis.
 ...
PMID:[Pancreatic cancer]. 1711 79

Cancer-related pain is complicated and unbearable. Pain management techniques must be constantly modified and improved, with the goal of decreasing pain and enabling patients to withstand it. A 56-year-old man with colon cancer and multiple metastases was suffering from intense pain that was not relieved by extremely high doses of intravenous morphine. Temporary pain relief was achieved twice by blockade of the intercostal nerves with local anesthetics. Radiofrequency ablation was then performed under fluoroscopic monitoring; however, the procedure resulted in little pain relief. Finally, a neurectomy to cauterize the intercostal nerves was completed with video-assisted thoracoscopy under general anesthesia.
 ...
PMID:Video-assisted thoracoscopic neurectomy of intercostal nerves in a patient with intractable cancer pain. 1721 Oct 2

The aim of this study was to examine the safety of ropivacaine given to patients as a continuous infusion [0.2% (2 mg/mL), 5 mL/h for 96 hours] into a right lateral transverse incision using a portable elastomeric infusion pump after colon cancer resection. Blood samples were collected throughout the infusion and up to 12 hours after infusion and were analyzed by high-performance liquid chromatography (HPLC) for total and unbound ropivacaine concentrations in plasma. Alpha1 acid glycoprotein (AAG) concentrations were measured at 0 and 48 hours to assess possible changes in ropivacaine protein binding after surgery. Postoperative pain control was assessed using 12 hour visual analog scale (VAS) scores. Patient-controlled analgesia (PCA) using fentanyl was freely available in parallel for breakthrough pain, with usage and consumption compared with a historical cohort. The mean +/- SD Cmax total plasma ropivacaine concentration (n = 5) from 12 hours to the end of the infusion was 4.5 +/- 2.6 mg/L, comparable with the previously published threshold for CNS toxicity in the most sensitive patient studied (3.4 mg/L). However, the corresponding maximum unbound ropivacaine concentration (ie, the pharmacologically active moiety) of 0.07 +/- 0.01 mg/L ranged from four- to sevenfold below the reported toxicity threshold (0.34 mg/L). The apparently greater safety margin seen with unbound ropivacaine may have resulted from a significant increase (mean 63%, P < 0.05) in AAG concentrations measured at 48 hours after surgery. This reduction resulted from the known AAG reaction after surgical intervention, resulting in a reducing unbound ropivacaine fraction throughout the 96 hour infusion in all patients. Mean subjective 12 hour pain scale scores at rest and on movement showed large variability between patients. No signs or symptoms of ropivacaine toxicity were observed or reported on questioning. In this limited sample, extending the infusion period from the presently approved 48 hours to 96 hours seems to be a safe alternative and/or adjunct to standard opiate analgesia after colorectal surgery using a right lateral transverse incision, hence reducing the incidence of opiate adverse effects and enhancing recovery. Unbound ropivacaine concentrations suggest there is scope for testing elevated doses to enhance efficacy further.
 ...
PMID:Safety of 96-hour incision-site continuous infusion of ropivacaine for postoperative analgesia after bowel cancer resection. 1730 51

Endobiliary metastasis of colorectal cancers are rare. We report a 36 years-old patient, operated on 5 years ago for a left colon cancer with a left colectomy. He consulted for pain in the upper right quadrant without fever nor jaundice. Ultra-sound, CTscan, RMI and PET led to the diagnosis of endobiliary metastasis and the patient underwent a right hepatectomy. A review of the literature of the endobiliary metastasis follows this case-report. These tumours can mimic intrahepatic cholangiocarcinoma in clinical presentation, imaging or even histological examinations. The main goal of the imaging explorations is to establish the resecability of such tumours. Patients with endobiliary metastasis seem to have better survival than patients with intrahepatic metastasis.
 ...
PMID:[Intrabiliary metastasis in colorectal cancer]. 1734 21

There is a widespread belief by some health care providers and the wider community that medications used to alleviate symptoms may hasten death in hospice patients. Conversely, there is a clinical impression among hospice providers that hospice might extend some patients' lives. We studied the difference of survival periods of terminally ill patients between those using hospices and not using hospices. We performed retrospective statistical analysis on selected cohorts from large paid claim databases of Medicare beneficiaries for five types of cancer and congestive heart failure (CHF) patients. We analyzed the survival of 4493 patients from a sample of 5% of the entire Medicare beneficiary population for 1998-2002 associated with six narrowly defined indicative markers. For the six patient populations combined, the mean survival was 29 days longer for hospice patients than for nonhospice patients. The mean survival period was also significantly longer for the hospice patients with CHF, lung cancer, pancreatic cancer, and marginally significant for colon cancer (P=0.08). Mean survival was not significantly different (statistically) for hospice vs. nonhospice patients with breast or prostate cancer. Across groups studied, hospice enrollment is not significantly associated with shorter survival, but for certain terminally ill patients, hospice is associated with longer survival times. The claims-based method used death within three years as a surrogate for a clinical judgment to recommend hospice, which means our findings apply to cases where a clinician is very sure the patient will die within three years, and it points to the need to validate these findings.
J Pain Symptom Manage 2007 Mar
PMID:Comparing hospice and nonhospice patient survival among patients who die within a three-year window. 1734 93

This case report series describes eight patients (four patients with pancreatic carcinoma, one patient with hepatocellular carcinoma, one patient with gastric and rectal carcinoma, one with sigmoid colon cancer, and one with rectal cancer), whose abdominal cancer pain was treated with intravenous phentolamine infusion at 80 mg x day(-1) for 2 days. All but one of the patients had already been treated with opioids. All eight patients complained of severe abdominal pain; in five patients the pain radiated to the back, and there was associated anal pain in two patients. Analgesia was achieved in three patients; pain alleviation was obtained in four patients, but was not sustained in two of these four patients; and the treatment in one patient could not be judged for efficacy because epidural morphine was used together with the phentolamine. Adverse effects of phentolamine were tachycardia and/or hypotension.
 ...
PMID:Intravenous phentolamine infusion alleviates the pain of abdominal visceral cancer, including pancreatic carcinoma. 1768 Jan 99

Mammalian tissues express the cannabinoid 1 (CB(1)) receptor and the cannabinoid 2 (CB(2)) receptor, the latter being involved in inflammation and pain. In somatic nerve pathways, the analgesic effects of CB(2) agonism are well documented. Two papers published in the Journal have provided evidence that CB(2) receptor activation inhibits visceral afferent nerve activity in rodents. These exciting findings are discussed in the context of recent data highlighting the emerging role of CB(2) receptor as a critical target able to counteract hypermotility in pathophysiological states, gut inflammation and possibly colon cancer.
 ...
PMID:The cannabinoid CB(2) receptor: a good friend in the gut. 1772 90

A 52-year-old Cypriot woman was admitted to the surgical department of Larnaca General Hospital complaining of diarrhea and pain in the right upper and lower quadrants, which was reproduced by clinical examination. A palpable mass was also felt in the region. The white blood cell count was 8420/mul: 73.9% neutrophils, 13.3% lymphocytes and 6.9% eosinophils. Erythrocyte sedimentation rate was 80 mm/h. Parasitic examination of the stools was negative. A colonoscopy located a small mass near the ileoceacal valvule, which was sent for a biopsy. A barium enema and computed tomography scan revealed the same lesion to have expanded into the ascending colon. Despite negative biopsy reports, other findings suggestive of colon cancer prompted us to perform a right hemicolectomy and ileotransverse end to side anastomosis. The mass was found to be expanding into the surrounding fat tissue and into the regional lymph notes. Surprisingly, histological examination of the mass revealed visceral larva migrans, owing to ascaris Toxocara canis or Toxocara cati.
 ...
PMID:An unusual case of Toxocara canis of the ascending colon. 1799 43


<< Previous 1 2 3 4 5 6 7 8 9 10 Next >>