No abstract available.
Basophils* ; Dipyrone* ; Hypersensitivity*

BACKGROUND: Epidural administration of dexamethasone has been suggested for pain control after minor orthopedic surgery. This study was conducted to assess its efficacy after such surgery, combined or not to IV dipyrone, IV parecoxibe or their combination. METHODS: 91 patients were randomly assigned to seven groups. Patients were submitted to spinal bupivacaine anesthesia combined to epidural administration of either 10 ml saline or 10 mg dexamethasone diluted to 10-ml volume. Patients also received 10 ml IV saline or 1 gr dipyrone and/or 40 mg parecoxibe diluted to 10 ml with saline. Control group (CG) received epidural and IV saline. Dexamethasone group (DexG) received epidural dexamethasone and IV saline. Dipyrone group (DipG) received epidural saline and IV dipyrone. Dex-Dip G received epidural dexamethasone and IV dipyrone. Parecoxibe group (ParG) received epidural saline and IV parecoxibe. Dex-ParG received epidural dexamethasone and IV parecoxibe. Finally, Dex-Dip-ParG received epidural dexamethasone and IV dipyrone plus IV parecoxibe. RESULTS: The CG expressed 4h of analgesia and sooner requested pain killer. DexG was similar to DipG or ParG or Dex-ParG (7-hours), and they requested less ketoprofen compared to the CG (P < 0.05). However, the Dex-DipG and the Dex-Dip-ParG resulted in longer time to demand pain killer (17-hours) and less ketoprofen consumption in 24-hours (P < 0.002). Adverse effects were similar among groups. CONCLUSIONS: The analgesia secondary to epidural dexamethasone was enhanced by IV dipyrone, while no effects were observed by the addition of IV parecoxibe.
Analgesia* ; Anesthesia ; Bupivacaine ; Dexamethasone* ; Dipyrone* ; Humans ; Ketoprofen ; Orthopedics* ; Pain, Postoperative

BACKGROUND: Epidural administration of dexamethasone has been suggested for pain control after minor orthopedic surgery. This study was conducted to assess its efficacy after such surgery, combined or not to IV dipyrone, IV parecoxibe or their combination. METHODS: 91 patients were randomly assigned to seven groups. Patients were submitted to spinal bupivacaine anesthesia combined to epidural administration of either 10 ml saline or 10 mg dexamethasone diluted to 10-ml volume. Patients also received 10 ml IV saline or 1 gr dipyrone and/or 40 mg parecoxibe diluted to 10 ml with saline. Control group (CG) received epidural and IV saline. Dexamethasone group (DexG) received epidural dexamethasone and IV saline. Dipyrone group (DipG) received epidural saline and IV dipyrone. Dex-Dip G received epidural dexamethasone and IV dipyrone. Parecoxibe group (ParG) received epidural saline and IV parecoxibe. Dex-ParG received epidural dexamethasone and IV parecoxibe. Finally, Dex-Dip-ParG received epidural dexamethasone and IV dipyrone plus IV parecoxibe. RESULTS: The CG expressed 4h of analgesia and sooner requested pain killer. DexG was similar to DipG or ParG or Dex-ParG (7-hours), and they requested less ketoprofen compared to the CG (P < 0.05). However, the Dex-DipG and the Dex-Dip-ParG resulted in longer time to demand pain killer (17-hours) and less ketoprofen consumption in 24-hours (P < 0.002). Adverse effects were similar among groups. CONCLUSIONS: The analgesia secondary to epidural dexamethasone was enhanced by IV dipyrone, while no effects were observed by the addition of IV parecoxibe.
Analgesia ; Anesthesia ; Bupivacaine ; Dexamethasone ; Dipyrone ; Humans ; Ketoprofen ; Orthopedics ; Pain, Postoperative

PURPOSE: Basophil activation occurs both in patients with immediate hypersensitivity reactions to anti-inflammatory drugs and in healthy controls in a dose-dependent manner. Our aims were to define the optimal basophil activation test (BAT) concentration and the threshold for BAT positivity for dipyrone. METHODS: From 45 patients with a positive history of an immediate hypersensitivity reaction to dipyrone, we found 20 patients with dipyrone-induced anaphylaxis demonstrating positive skin tests. All selected patients, as well as 10 healthy controls, were tested in vivo and in vitro. BAT was performed using Flow 2CAST technique with three low dipyrone concentrations: 25 microg/mL (c1), 2.5 microg/mL (c2) and 0.25 microg/mL (c3). The threshold for BAT positivity was established using receiver operating characteristics (ROC) curve analysis. RESULTS: Using ROC curve analysis the highest area under curve, 0.79 (0.63-0.95) (P<0.01), was found for c3. When the highest stimulation indexes from the three concentrations for each patient were used, ROC curve analysis revealed an area under curve of 0.81 (0.65-0.96) (P<0.01), sensitivity and specificity were 0.70 and 1 and the optimal threshold value for BAT positivity was 1.71. Thirteen patients had a positive BAT for at least one of the tested dipyrone concentrations. All healthy controls presented negative BAT. CONCLUSIONS: BAT might be a useful technique to diagnose dipyrone allergy, provided all three low dipyrone concentrations are used together. With an assay-specific threshold of 1.71, ROC curve analysis yields 70% sensitivity and 100% specificity.
Anaphylaxis ; Area Under Curve ; Basophils ; Dipyrone ; Humans ; Hypersensitivity ; Hypersensitivity, Immediate ; ROC Curve ; Skin Tests

PURPOSE: Basophil activation occurs both in patients with immediate hypersensitivity reactions to anti-inflammatory drugs and in healthy controls in a dose-dependent manner. Our aims were to define the optimal basophil activation test (BAT) concentration and the threshold for BAT positivity for dipyrone. METHODS: From 45 patients with a positive history of an immediate hypersensitivity reaction to dipyrone, we found 20 patients with dipyrone-induced anaphylaxis demonstrating positive skin tests. All selected patients, as well as 10 healthy controls, were tested in vivo and in vitro. BAT was performed using Flow 2CAST technique with three low dipyrone concentrations: 25 microg/mL (c1), 2.5 microg/mL (c2) and 0.25 microg/mL (c3). The threshold for BAT positivity was established using receiver operating characteristics (ROC) curve analysis. RESULTS: Using ROC curve analysis the highest area under curve, 0.79 (0.63-0.95) (P<0.01), was found for c3. When the highest stimulation indexes from the three concentrations for each patient were used, ROC curve analysis revealed an area under curve of 0.81 (0.65-0.96) (P<0.01), sensitivity and specificity were 0.70 and 1 and the optimal threshold value for BAT positivity was 1.71. Thirteen patients had a positive BAT for at least one of the tested dipyrone concentrations. All healthy controls presented negative BAT. CONCLUSIONS: BAT might be a useful technique to diagnose dipyrone allergy, provided all three low dipyrone concentrations are used together. With an assay-specific threshold of 1.71, ROC curve analysis yields 70% sensitivity and 100% specificity.
Anaphylaxis ; Area Under Curve ; Basophils ; Dipyrone ; Humans ; Hypersensitivity ; Hypersensitivity, Immediate ; ROC Curve ; Skin Tests

Peptic ulcer disease complicated with gastric outlet obstruction is rare in children. Even though NSAIDs have been reported to cause various adverse events, they are still regarded as safe and, therefore, widely utilized in children. In the past, pediatric patients who were at risk of seizure due to high fever, were treated with dipyrone (Metamizole sodium) injection which inhibits cyclooxygenase-1 and inhibit prostaglandin, to weaken the gastro-duodenal defensive mechanism. A case of an infant with multiple esophagogatroduodenal ulcers and bleeding caused by NSAID complicated with gastric outlet obstruction is reported in this paper.
Anti-Inflammatory Agents, Non-Steroidal ; Child ; Cyclooxygenase 1 ; Dipyrone ; Fever ; Gastric Outlet Obstruction* ; Hemorrhage ; Humans ; Infant ; Peptic Ulcer* ; Seizures ; Ulcer

Herein we report a 51-year-old male with angioimmunoblastic lymphadenopathy who had developed rnaculopapular eruptions after the administration of crystalline penicillin, acetylsalicylic acid and sulpyrine. Skin biopsy showed mild lyrnphohistiocytic infiltration and extravasated RBCs around the blood vessels in the upper dermis. He had run a progressively downhill course in spite of vigorous chemotherapy and ultimately died.
Aspirin ; Biopsy ; Blood Vessels ; Crystallins ; Dermis ; Dipyrone ; Drug Therapy ; Humans ; Immunoblastic Lymphadenopathy ; Lymphatic Diseases* ; Male ; Middle Aged ; Penicillins ; Skin

This paper focuses on the animal experiment of automatic drug delivery based on predictive control for vascular interventional therapy. Improvement of drug delivery system based on predictive control used in simulated experiments was put forward after the presence of time varying parameters and the characteristics of individual differences of animal had been studied. The adaptability of time varying parameters and fault tolerance of the system were also enhanced. Different injection methods were tested on animals. It is proved that higher target blood concentration can be reached while injecting during diastolic than that while injecting during systolic or injecting at a constant speed within the whole cardiac cycle. The results also showed that the improved drug injection system based on predictive control which synchronizes with the cardiac cycle could be applied to clinical trials.
Algorithms ; Animals ; Automation ; Dipyrone ; administration & dosage ; analogs & derivatives ; Forecasting ; Infusion Pumps ; Infusions, Intra-Arterial ; methods ; Pharmaceutical Preparations ; administration & dosage ; Swine

Drug-induced agranulocytosis is a potentially lethal disorder characterized by selective neutropenia. G-CSF has been utilized for its treatment. We report a case of acute agranulocytosis probably associated with injection of sulpyrine(dipyrone). A three-year old girl was admitted to Taejon St. Mary's Hospital following five days of fever and two days of chills and prostration. During this period, she had been treated at local clinics with oral acetaminophen, ibuprofen, and miokamycin. Two days before admission, she was administered an intramuscular injection of dipyrone as antipyretics. She had a past history of previous sensitization of dipyrone. CBC revealed profound netropenia(total WBC 900/mm3, with 1% neutrophils, 88% lymphocytes, 10% atypical lymphocytes, 1% monocytes), but normal RBC and platelet count. Bone marrow examination showed hypocellularity(20%), decreased myeloid precusors, and M:E ratio of 1 : 2.5. The girl received subcutaneous G-CSF once daily for 3 days. G-CSF therapy resulted in a steep increase of neutrophil count, which was faster than the spontaneous recovery reported in the literature. G-CSF may be considered useful in the management of drug-induced agranulocytosis.
Acetaminophen ; Agranulocytosis* ; Antipyretics ; Bone Marrow Examination ; Chills ; Daejeon ; Dipyrone ; Female ; Fever ; Granulocyte Colony-Stimulating Factor ; Granulocytes* ; Humans ; Ibuprofen ; Injections, Intramuscular ; Lymphocytes ; Miocamycin ; Neutropenia ; Neutrophils ; Platelet Count

Drug-induced agranulocytosis is a potentially lethal disorder characterized by selective neutropenia. G-CSF has been utilized for its treatment. We report a case of acute agranulocytosis probably associated with injection of sulpyrine(dipyrone). A three-year old girl was admitted to Taejon St. Mary's Hospital following five days of fever and two days of chills and prostration. During this period, she had been treated at local clinics with oral acetaminophen, ibuprofen, and miokamycin. Two days before admission, she was administered an intramuscular injection of dipyrone as antipyretics. She had a past history of previous sensitization of dipyrone. CBC revealed profound netropenia(total WBC 900/mm3, with 1% neutrophils, 88% lymphocytes, 10% atypical lymphocytes, 1% monocytes), but normal RBC and platelet count. Bone marrow examination showed hypocellularity(20%), decreased myeloid precusors, and M:E ratio of 1 : 2.5. The girl received subcutaneous G-CSF once daily for 3 days. G-CSF therapy resulted in a steep increase of neutrophil count, which was faster than the spontaneous recovery reported in the literature. G-CSF may be considered useful in the management of drug-induced agranulocytosis.
Acetaminophen ; Agranulocytosis* ; Antipyretics ; Bone Marrow Examination ; Chills ; Daejeon ; Dipyrone ; Female ; Fever ; Granulocyte Colony-Stimulating Factor ; Granulocytes* ; Humans ; Ibuprofen ; Injections, Intramuscular ; Lymphocytes ; Miocamycin ; Neutropenia ; Neutrophils ; Platelet Count