Stable measurement of chemistry, immunochemistry, and hematology analytes in a heparin-based anticoagulant with iloprost additive: A promising candidate for the polyvalent blood collection tube.

INTRODUCTION: A polyvalent blood collection tube could potentially reduce the number and volume of blood samples drawn from patients and reduce the risk of tube mix-ups in a point-of-care setting in the emergency department and the intensive care unit. METHODS: Four different concentrations of our experimental heparin anticoagulant with iloprost additive (HEP-ILOP 50 nM, 150 nM, 1000 nM, and 10 µM, respectively) were tested for significant differences and bias performance specifications against EDTA for 29 hematology analytes, and the highest concentration (HEP-ILOP 10 µM) against lithium heparin for 14 chemistry and immunochemistry analytes. Samples were drawn from 79 consenting subjects from the Oncology Department (n = 38) and the Intensive and Intermediary Care Unit (n = 41). RESULTS: For hematology analytes, the HEP-ILOP formulation generally provided stable measurement within optimal requirements within 5 h after sampling (mean 104 ± 56 min), with very little difference between the four HEP-ILOP concentrations. Because of differences in platelet and red blood cell swelling between EDTA and HEP-ILOP, all size-dependent analytes required proportional factorization to produce similar results. Platelet count by impedance similarly required factorization, whereas the fluorescent method provided results identical with EDTA. Chemistry and immunochemistry analytes were within optimal requirements except for potassium, lactate dehydrogenase, and glucose, indicating a cytoprotective effect of iloprost reducing cell metabolism and rupture, thereby producing results closer to in vivo conditions. CONCLUSIONS: Our novel dry-sprayed anticoagulant formulation, HEP-ILOP, is a promising candidate for a polyvalent blood collection tube, enabling the analysis of hematology, chemistry, and immunochemistry analytes in the same tube.

Comparison of 3 Treatment Strategies for Medication Overuse Headache: A Randomized Clinical Trial.

Importance: Medication overuse headache (MOH) is a disabling, globally prevalent disorder representing a well-known and debated clinical problem. Evidence for the most effective treatment strategy is needed. Objective: To compare 3 treatment strategies for MOH. Design, Setting, and Participants: This open-label, randomized clinical trial with 6 months of follow-up was conducted in the tertiary sector at the Danish Headache Center, Glostrup, from October 25, 2016, to June 28, 2019. Of 483 patients with MOH referred during the inclusion period, 195 met the criteria consisting of migraine and/or tension-type headache, 18 years or older, eligibility for outpatient treatment, no severe physical or psychiatric disorder, no other addiction, and not pregnant or breastfeeding. Of these, 75 refused participation and 120 were included. Data were analyzed from July 3 to September 6, 2019. Interventions: Random assignment (1:1:1 allocation) to 1 of the 3 outpatient treatments consisting of (1) withdrawal plus preventive treatment, (2) preventive treatment without withdrawal, or (3) withdrawal with optional preventive treatment 2 months after withdrawal. Main Outcomes and Measures: The primary outcome was change in headache days per month after 6 months. Predefined secondary outcomes were change in monthly migraine days, use of short-term medication, pain intensity, number of responders, patients with remission to episodic headache, and cured MOH. Results: Of 120 patients, 102 (mean [SD] age, 43.9 [11.8] years; 81 women [79.4%]) completed the 6-month follow-up. Headache days per month were reduced by 12.3 (95% CI, 9.3-15.3) in the withdrawal plus preventive group, by 9.9 (95% CI, 7.2-12.6) in the preventive group, and by 8.5 (95% CI, 5.6-11.5) in the withdrawal group (P = .20). No difference was found in reduction of migraine days per month, use of short-term medication, or headache intensity. In the withdrawal plus preventive group, 23 of 31 patients (74.2%) reverted to episodic headache, compared with 21 of 35 (60.0%) in the preventive group and 15 of 36 (41.7%) in the withdrawal group (P = .03). Moreover, 30 of 31 patients (96.8%) in the withdrawal plus preventive group were cured of MOH, compared with 26 of 35 (74.3%) in the preventive group and 32 of 36 (88.9%) in the withdrawal group (P = .03). These findings corresponded to a 30% (relative risk, 1.3; 95% CI, 1.1-1.6) increased chance of MOH cure in the withdrawal plus preventive group compared with the preventive group (P = .03). Conclusion and Relevance: All 3 treatment strategies were effective, but based on these findings, withdrawal therapy combined with preventive medication from the start of withdrawal is recommended as treatment for MOH. Trial Registration: ClinicalTrials.gov Identifier: NCT02993289.

Complete withdrawal is the most feasible treatment for medication-overuse headache: A randomized controlled open-label trial.

BACKGROUND: Complete stop of acute medication and/or migraine medication for treatment of medication-overuse headache (MOH) has previously been reported more effective in reducing headache days and migraine days per month compared with restricted intake of acute medication. However, it is unknown whether complete stop or restricted intake is the most feasible treatment for patients. OBJECTIVES: To investigate whether feasibility of withdrawal in MOH is different between complete stop of acute medication and restricted intake, and whether reductions in headache-related medication dependence, anxiety and depression differ between the treatments. METHODS: Medication-overuse headache patients were included in a prospective, open-label, outpatient study and randomized to two months of withdrawal with either no analgesics or acute migraine medication (programme A) or acute medication restricted to 2 days/week (programme B). After 6 and 12 months, patients graded feasibility of withdrawal. Dependence was measured by Severity of Dependence Scale (SDS), while anxiety and depression were measured by Hospital Anxiety and Depression Scale (HADS). RESULTS: We included 72 MOH patients with primary migraine and/or tension-type headache. Forty-nine completed withdrawal and the SDS questionnaire at 12-month follow-up, and the feasibility of withdrawal was significantly higher in programme A compared to programme B (p < 0.001). At 12 months, the dependence was reduced by 44% in programme A compared to 26% in programme B (p = 0.053), while the anxiety score was reduced by 32% and 11%, respectively (p = 0.048). CONCLUSIONS: Withdrawal with complete stop of acute medication was more feasible and most effective in reducing headache-related anxiety compared with restricted intake. SIGNIFICANCE: A complete stop of all analgesics is the most effective treatment for MOH regarding reduction in headache days but has often been regarded as too challenging for patients. However, in this study, complete stop appears to be more feasible compared with restricted intake of analgesics seen from the patients' perspective.

Complete withdrawal is the most effective approach to reduce disability in patients with medication-overuse headache: A randomized controlled open-label trial.

BACKGROUND: Medication-overuse headache leads to high disability and decreased quality of life, and the best approach for withdrawal has been debated. AIM: To compare change in disability and quality of life between two withdrawal programs. METHODS: We randomized medication-overuse headache patients to program A (two months without acute analgesics or migraine medications) or program B (two months with acute medications restricted to two days/week) in a prospective, outpatient study. At 6 and 12 months, we measured disability and headache burden by the Headache Under-Response to Treatment index (HURT). We estimated quality of life by EUROHIS-QOL 8-item at 2-, 6-, and 12-month follow-up. Primary endpoint was disability change at 12 months. RESULTS: We included 72 medication-overuse headache patients with primary migraine and/or tension-type headache. Fifty nine completed withdrawal and 54 completed 12-month follow-up. At 12-month follow-up, 41 patients completed HURT and 38 completed EUROHIS-QOL 8-item. Disability reduction was 25% in program-A and 7% in program-B ( p = 0.027). Headache-burden reduction was 33% in program-A and 3% in program-B ( p = 0.005). Quality of life was increased by 8% in both programs without significant difference between the programs ( p = 0.30). At 2-month follow-up, quality of life increased significantly more in program-A than program-B ( p = 0.006). CONCLUSION: Both withdrawal programs reduced disability and increased quality of life. Withdrawal without acute medication was the most effective in reducing disability in medication-overuse headache patients. TRIAL REGISTRATION: Clinicaltrials.gov (NCT02903329).