Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0018681 (headache)
 56,091 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Hyperacetataemia during acetate haemodialysis has been associated with the development of a variety of unpleasant symptoms, although a direct toxic effect of acetate is hard to prove. Acetaldehyde, which is produced during the metabolism of ethanol to acetate, has various toxic effects including some of those reported during acetate dialysis such as nausea, headache and palpitations. Using a novel, recently developed method we studied blood acetaldehyde concentrations during acetate dialysis in 15 patients and found significant increases in five, with a mean peak value in these patients of 1.36 mumol/l (normal less than 0.4 mumol/l). These five patients also developed high blood acetate concentrations during a subsequent acetate dialysis and showed a significant correlation between blood acetaldehyde and acetate concentrations (r = 0.55, P less than 0.05). Blood acetaldehyde did not change during bicarbonate dialysis in these patients. Our results suggest that significant accumulation of acetaldehyde may occur during acetate dialysis, especially in those patients whose metabolic capacity for acetate is somehow impaired, and that acetaldehyde may contribute to some of the symptoms previously ascribed to 'acetate' intolerance.
Nephrol Dial Transplant 1988
PMID:Changes in blood acetaldehyde concentrations during acetate haemodialysis. 314 21

Haemodialysis is frequently complicated by side-effects both during and after treatment. Hypotension and muscle cramps have been attributed to depletion of intravascular volume; headache and fatigue have been attributed to rapid changes in intracellular and extracellular osmolality. An evidence-based systematic review of the English language literature was used to evaluate these hypotheses. Four studies have addressed the morbidity associated with changes in intravascular volume. These data suggest that during haemodialysis the vascular space is refilled from the interstitial space. Overhydrated patients are less likely to experience hypotension than are dehydrated patients, perhaps at the risk of congestive heart failure and hypertension. Intradialytic changes in haematocrit reflect changes in vascular volume and may be used to predict intradialytic hypotension. Eight studies have addressed the morbidity associated with changes in osmolality. In two of these studies the investigators reported clinical benefit for patients with patient-specific sodium profiles during dialysis. Four studies lacked sufficient statistical power to detect an effect of sodium profiling on patient symptoms. Two studies suggest a clinically important decrease in intradialytic symptoms during treatment with sodium-profiled dialysate. A definitive test of these hypotheses will require a randomized, blinded study of the clinical impact of sodium/ultrafiltration modelling on patient symptoms.
Nephrol Dial Transplant 1996
PMID:Sodium and water profiling in chronic uraemia. 904 39

Anaemia occurs in a significant number of patients with cancer, and is associated with symptoms of fatigue, dizziness, headache and decreased health-related quality of life. Clinical trials have demonstrated the ability of epoetin alfa to increase haemoglobin concentrations and reduce transfusion requirements in patients with cancer. Data from three large, open-label, community-based trials of >7000 patients, as well as a series of smaller, randomized, placebo-controlled studies, have confirmed the efficacy of treatment with epoetin alfa in patients undergoing chemotherapy. In two of the community-based studies (>2000 patients in each), patients undergoing chemotherapy received epoetin alfa, 150-300 IU/kg or 10,000-20,000 IU, three times weekly. Significant (P<0.01) increases in haemoglobin concentrations and reductions in transfusion rates were seen in both studies. Significant improvements in quality of life were also reported, as measured by the Linear Analogue Scale Assessment and the Functional Assessment of Cancer Therapy-Anaemia. Importantly, the increases in quality of life were independent of tumour response. These findings were also observed in randomized, placebo-controlled studies. The third study, in approximately 3000 patients, evaluated the efficacy of once-weekly dosing, which significantly (P<0.01) increased haemoglobin concentrations, reduced transfusion requirements and improved quality of life. Greater increases in haemoglobin concentration were associated with greater improvements in quality-of-life scores. The safety and efficacy profile of the once-weekly regimen was comparable with that of the three times weekly regimen. Maintaining optimal quality of life, while achieving tumour stabilization or regression, is essential to the successful management of patients with cancer. Epoetin alfa has been shown to increase haemoglobin concentration, decrease transfusion requirements and increase quality of life. Given the frequency of adverse sequelae associated with anaemia, its aggressive management should become an integral and routine part of cancer treatment.
Nephrol Dial Transplant 2002
PMID:Managing cancer-related anaemia with epoetin alfa. 1181 17

The authors reported a case of niclofolan intoxication occurred during the trial of clonorchiasis treatment. The case, a 15 years old Korean schoolboy, took niclofolan(Bilevon(R)) of total 473 mg(11 mg/kg) in 11 divided doses during 20 days. And the case suffered from neurologic symptoms such as severe headache, dizziness, nausea, vomiting, blurred vision, papilledema, retinal hemorrhage, an epsiode of seizure attack and elevated intracranial pressure, and hepatotoxic symptoms such as hepatomegaly, increased serum transaminases, and shoulder pain, excessive sweating and weight loss. Therapy was concentrated to the management of the elevated intracranial pressure. Hepatotoxic manifestations subsided within one month. The clinical signs related to elevated intracranial pressure persisted two months. Body weight regained after 2 months. And the symptoms of headache, dizziness and vomiting were complained intermittently until 4 months after onset. However, no subsequent clinical problems related with this episode has been noted until this record.
 ...
PMID:A Case Of Niclofolan (Bilevon(R)) Intoxication. 1290

Thirty six patients were received epidural anesthesia with or without buprenorphine (BPN) during upper abdominal surgery. They were divided into three groups of 12 patients as follows; G-I received 20 ml of 1% lidocaine epidurally, G-II received 20 ml of 1% lidocaine epidurally and 0.6 mg BPN intravenously, G-III received 20 ml of 1% lidocaine with 0.6 mg BPN epidurally. Additional 5 ml of 1% lidocaine was given to any patient if systolic blood pressure or heart rate increased 10% compared to control value. Trachea was intubated following anesthetic induction with thiopental. The lungs were ventilated with a mixture of N(2)O/O(2) (33%) and pancuronium was used for muscle relaxation. The total required doses of lidocaine in G-II and G-III were decreased 60% compared to control group (G-I) ( P < 0.05). The mean period of time until the first administration of pentazocine for postoperative pain was 13 +/- 10 hr (mean +/- SD) in G-II and 19 +/- 24 hr in G-III compared to 5 +/- 4 hr in G-I ( P << 0.001). The dose of the administration of pentazocine that was required for pain relief during the first 48 postoperative hr in G-III was 54 +/- 10 mg (mean +/- SD) compared to 150 +/- 21 mg in G-I ( P < 0.02) and 106 +/- 28 mg in G-II ( P < 0.05). Recovery from anesthesia in G-III was more rapid than that in G-I ( P < 0.05). The Pa(CO)(2) values in G-II and G-III increased 15% compared to control group at about 4 hr and 8 hr after administration of BPN, but any clinical treatment was not needed for them. Nonrespiratory side effects, e.g., nausea, vomiting, fatigue and headache, were comparably common in all groups. Mild hematuria associated with acute hypotension occurred in two patients in G-II (17%) immediately after the intravenous injection of 0.6 mg of BPN. The results showed that 0.6 mg of BPN given epidurally demonstrated better anesthetic and more potent postoperative analgesic effects and lesser side effects than 0.6 mg of BPN given intravenously in patients undergoing upper abdominal surgery.
 ...
PMID:Comparison of anesthetic effects of epidural and intravenous administration of buprenorphine during operation. 1523 80

Extreme thrombocytosis is a frequent feature in myeloproliferative disorders which can predispose a person to thrombotic complications. As opposed to other myeloproliferative disorders, symptomatic thrombocytosis is rare in chronic myeloid leukemia. We describe a second case report of chronic myeloid leukemia (Ph chromosome positive) in a patient in chronic phase on hydroxyurea who presented with sudden onset digital cyanosis of the left hand, giddiness, headache and malaise due to extreme thrombocytosis. A 67% global reduction in the platelet count from 1553 x 10(9)/L to 513 x 10(9)/L after two therapeutic plateletpheresis procedures was seen. There was simultaneous improvement in all symptoms except cyanosis on the tip of the middle finger that progressed to dry gangrene. Dramatic reduction in the platelet count and ablation of symptoms by therapeutic plateletpheresis is an effective therapy and should begin as soon as possible.
Ther Apher Dial 2004 Dec
PMID:Therapeutic plateletpheresis in a case of symptomatic thrombocytosis in chronic myeloid leukemia. 1566 50

Reversible leukoencephalopathy syndrome (RLS) is a rare brain disorder, characterized by diffuse attenuation of cerebral white matter, which has been most commonly observed in transplant patients receiving calcineurin inhibitors or in patients with severe hypertension. We report an episode of RLS in a 22-year-old male patient on chronic hemodialysis with well-controlled moderate hypertension who presented with de novo headache and generalized seizures. Cranial magnetic resonance image (MRI) revealed multiple areas of increased signal intensity in the white matter on T2-weighed images which resolved spontaneously at subsequent MRIs. White blood cell count showed leucopenia with normal CD4 count at flow cytometry. A viral etiology could not be demonstrated. Reversible leukoencephaolopathy syndrome symptoms remitted within 72 h but leukopenia persisted over 10 months. The patient received a kidney transplant 15 months after RLS onset and has received cyclosporine since the second post-transplant day. No recurrence of RLS symptoms has been observed. The etiology of the MRI changes in the present case seemed not to be either vasogenic or cytotoxic.
Ther Apher Dial 2005 Feb
PMID:Reversible leukoencephalopathy syndrome associated to leukopenia in a chronic hemodialysis patient. 1582 10

Dialysis Disequilibrium Syndrome (DDS) is characterized by neurological symptoms caused by rapid removal of urea during hemodialysis. It develops primarily from an osmotic gradient that develops between the brain and the plasma as a result of rapid hemodialysis. This results in brain edema that manifests as neurological symptoms such as headache, nausea, vomiting, muscle cramps, tremors, disturbed consciousness, and convulsions. In severe cases, patients can die from advanced cerebral edema. Recent advancements in cell biology implicate the role of urea disequilibrium (with a smaller contribution from organic osmolytes) as the pathophysiological mechanism responsible for this syndrome. In this review, we discuss the pathogenesis, clinical features and prevention of DDS.
Semin Dial
PMID:Dialysis disequilibrium syndrome: a narrative review. 1876 99

Beraprost sodium, an orally active prostaglandin I2 analog with vasodilatory, cytoprotective, antiplatelet, antithrombotic, and anti-inflammatory effects, 120 microg daily for 8 weeks, decreased plasma D-dimer, a marker of intravascular coagulation, and von Willebrand factor, a marker for endothelial injury, in 100 chronic peritoneal dialysis patients. Total cholesterol, triglycerides, high-density lipoprotein, apolipoprotein A1, apolipoprotein B, albumin, prealbumin, fibrinogen, troponin-T, and high-sensitivity C-reactive protein levels were not changed. Three patients complained of headache and 1 patient experienced facial flushing; however, no serious adverse effects were observed. These results suggest that beraprost sodium is effective in partially reversing the thrombogenic coagulation profile and endothelial injury in chronic peritoneal dialysis patients.
Perit Dial Int
PMID:Effects of beraprost sodium, an oral prostaglandin i2 analog, on hemostatic factors and inflammation in chronic peritoneal dialysis patients. 1929 55

Hemangiopericytoma (HPC) is a rare tumor of uncertain malignant potential arising from mesenchymal cells with pericytic differentiation. It accounts for 3-5% of soft tissue sarcomas and 1% of vascular tumors. It usually presents in 5th to 6th decade of life. Most common sites are limbs, pelvis and head and neck. About 20% of all hemangiopericytomas are seen in head and neck, mostly in adults. Usually it presents in orbit, nasal cavity, oral cavity, jaw, parotid gland, parapharyngeal space, masticator space and jugular foramen. Long term follow up is important because of imprecise nature of the histological criteria for prediction of biologic behavior.We report herein a case of HPC in 66-year-old man, who presented in our department with headache, nasal obstruction and dysphagia. A neck computer tomography scan and magnetic resonance imaging showed a large left parapharyngeal mass bulging into nasopharynx and oropharynx with extension to pharyngeal mucosal surface and causing narrowing of airways and total obstruction of left posterior nostril. Angiography showed a highly vascular neoplasm. Initially he was managed as a case of schwannoma and embolization was done but with no response. An attempt to do complete surgical resection was made, but due to its critical position, it was not possible. During surgery, highly vascularised tumor was found. The histopathologic examination revealed a vascular tumor consistent with hemangiopericytoma G-II. The patient had normal postoperative course of healing and was given adjuvant radiation. He is on regular follow up without signs of recurrence or metastases.In summary, parapharyngeal space is a rare site of presentation for hemangiopericytoma which is highly vascular tumor, requiring extensive work up including magnetic resonance imaging, computed tomography scan and angiography. Complete surgical excision should be attempted. Postoperative radiation is indicated in cases of incomplete resection.
 ...
PMID:Parapharyngeal space hemangiopericytoma treated with surgery and postoperative radiation--a case report. 2449 30


1 2 Next >>