scholarly journals Single versus Multiple-doses of Methotrexate: A Retrospective Cohort Study to Compare the Efficacy and Observed Side Effects in Management of Ectopic Pregnancies

2019 ◽  
Vol 30 (2) ◽  
Keyword(s):  
Cohort Study ◽  
Side Effects ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Multiple Doses ◽  
Ectopic Pregnancies ◽  
Single Versus

Aspirin Therapy in Venous Malformation: A Retrospective Cohort Study of Benefits, Side Effects, and Patient Experiences

2014 ◽  
Vol 31 (5) ◽  
pp. 556-560 ◽  
Author(s):  
Jennifer T. Nguyen ◽  
Marion A. Koerper ◽  
Christopher P. Hess ◽  
Christopher F. Dowd ◽  
William Y. Hoffman ◽  
...  
Keyword(s):  
Cohort Study ◽  
Side Effects ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Venous Malformation ◽  
Patient Experiences ◽  
Aspirin Therapy

scholarly journals Herbal Medicines and Ovarian Hyperstimulation Syndrome: A Retrospective Cohort Study

2016 ◽  
Vol 2016 ◽  
pp. 1-4
Author(s):  
Athar Rasekhjahromi ◽  
Masoumeh Hosseinpoor ◽  
Farzaneh Alipour ◽  
Mehrnoosh Maalhagh ◽  
Saeed Sobhanian
Keyword(s):  
Cohort Study ◽  
Side Effects ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Polycystic Ovary ◽  
Herbal Medicines ◽  
Group Versus ◽  
Control Group ◽  
Case Group ◽  
Significant Difference

Background. The aim of this study was to assess the association between herbal medication and OHSS.Methods. This retrospective cohort study was conducted with 101 polycystic ovary syndrome patients. 66 patients took conventional pharmacological medications and 35 took herbal medications. Data were analyzed by statistical test including Fisher’s Exact and binominal logistic regression.P<0.05was considered significant.Results. Of the 101 females, 53 were married and 48 were single. There was no significant association between the groups in marriage. No significant association was found in mean age between the two groups (23.9 ± 5.8 years in the control group versus 26.3 ± 6.7 years in the case group). There was a significant difference between the two groups .After adding the dependent (OHSS prevalence) and independent (marriage and group) variables into the model, the Hosmer-Lemeshow test showed suitability. Variances analyzed with this model ranged between 29.4% and 40.7%.Conclusion. The indiscriminate use of herbs is correlated with OHSS. Because patients increasingly consume herbs, they should be aware of potential side effects. However, appropriate dosages of herbs could be obtained for use instead of conventional treatments, which often have side effects.

Mexiletine Usage in a Chronic Pain Clinic: Indications, Tolerability, and Side Effects

2018 ◽  
Vol 1 (21;1) ◽  
pp. E573-E579 ◽  
Author(s):  
Adam Romman
Keyword(s):  
Chronic Pain ◽  
Neuropathic Pain ◽  
Cohort Study ◽  
Pain Management ◽  
Side Effects ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Primary Diagnosis ◽  
Pain Clinic ◽  
Chronic Pain Management

Background: Background: Intravenous lidocaine has multiple applications in the management of acute and chronic pain. Mexiletine, an oral lidocaine analogue, has been used in a number of chronic pain conditions although its use is not well characterized. Objectives: To report our experience using mexiletine in a chronic pain population, specifically looking at tolerability, side effects, and EKG changes. Study Design: Retrospective, cohort study. Setting: Multiple pain clinic locations in an integrated multispecialty health system. Methods: All patients who had a mexiletine prescription between August 2015 and August 2016 were queried via the electronic medical record. Each chart was examined for demographics, QTc changes on EKG, length of use, and reasons for stoppage. Results:There were 74 total patients identified in the chronic pain management clinics as receiving at least 1 mexiletine prescription over the 1-year time period. Twice as many women as men received mexiletine prescriptions. Neuropathic pain was the most common primary diagnosis (64%) which included diabetic neuropathy, radiculopathy, and others. Fibromyalgia was the next most common primary diagnosis (28%). A QTc change on the EKG showed a mean decrease of 0.1 ms and median increase of 1.5 ms. At 6 months (180 days), approximately 30% of the patients remained on mexiletine therapy, and 28% remained on the therapy at 1 year (360 days). Median duration of use was 60 days and the mean was 288 days. Neurologic and gastrointestinal side effects were the most commons reason for stoppage. All side effects were mild and resolved with stoppage. After side effects, lack of response, or loss of efficacy, were the next most common reasons for stoppage. Limitations: Pain relief and outcomes were not specifically examined due to confounding factors including interventional treatments and multiple treatment modalities. This was a retrospective, cohort study limited to our specific clinic population with a relatively high loss to follow-up rate. Conclusion:Mexiletine is rarely a first line option for chronic pain management and is often used when multiple other modalities have failed. By reporting our experience, we hope other clinicians may have more familiarity with the drug’s use in a chronic pain practice. It appears reasonably tolerable, may not require frequent EKG monitoring, and can be an appropriate adjunct in the chronic pain population. More research is needed regarding efficacy and dose titration for mexiletine in chronic pain. Key Words: Chronic pain, mexiletine, IV lidocaine, pain, neuropathic pain, neuropathy, fibromyalgia, QTc, tolerability

scholarly journals A Retrospective Cohort Study of Interferon-α Therapy in Myeloproliferative Neoplasms; Adverse Events, Thromboembolic Incidence and Causes of Termination of Therapy

Blood ◽  
2014 ◽  
Vol 124 (21) ◽  
pp. 1861-1861 ◽  
Author(s):  
Marie Lindgren ◽  
Jan Samuelsson ◽  
Lars Nilsson ◽  
Håvar Knutsen ◽  
Waleed Ghanima ◽  
...  
Keyword(s):  
Cohort Study ◽  
Side Effects ◽  
Adverse Events ◽  
Retrospective Cohort Study ◽  
Retrospective Cohort ◽  
Myeloproliferative Neoplasms ◽  
Interferon Α ◽  
Low Grade ◽  
Discontinuation Rate ◽  
Hematologic Response

Abstract Background In myeloproliferative neoplasms (MPN), Interferon-α (IFN-α) has been shown effective in inducing hematologic and molecular responses and in reducing vascular events. In clinical practice its use is mainly limited by intolerance due to side effects. Aim We sought to evaluate the tolerability of IFN-α therapy, the thromboembolic incidence and the causes of termination of therapy in a cohort of MPN, treated outside of clinical trials. Methods One hundred patients (M/F 41/59, median age 48 years, range 15-73) with a diagnosis of polycythemia vera (PV, n=47), essential thrombocythemia (ET, n=43) and myelofibrosis (MF, n=10) according to the WHO 2008 criteria, on current or previous treatment with IFN-α (IFN-α-2b, Peg-IFN-α-2b, Peg-IFN-α-2a) were included. The patients, diagnosed 1987-2012, were recruited from 9 centers in Sweden and Norway, and retrospectively analyzed. Hematologic response in PV and ET was assessed according to ELN criteria from 2009. Response to treatment in MF was defined as platelets ² 400x109 /L, white blood counts ² 10x109/L and transfusion independency. Results IFN-α treatment characteristics are displayed in Table 1. The median treatment duration for IFN-α was 34 months. Treatment prior to IFN-α had been received by 44 pts including hydroxyurea (n=34), anagrelide (n=19), busulphan (n=2), radioactive phosphorus (n=1), 10 pts having received more than one cytoreductive agent. Complete hematologic response (CR) was observed in 58 pts (PV=28/47, ET=30/43) and partial hematologic response (PR) in 15 pts (PV=2, ET=13). In MF, hematologic response was noted in 8 out of 10 patients. IFN-α related adverse events (AE) were recorded in 76 pts (76/100, 76%) with similar rates between genders (M 30/41, 73%, F 45/59, 76%). AE were generally of low grade. Twenty pts experienced multiple (³ 3) side effects (M/F 6/14), females reporting a total of 96 AE compared to 53 in males. Hematologic toxicity was low with 4 pts presenting with anemia, 4 with leukopenia and 3 with thrombocytopenia. Most common non-hematologic toxicities were fatigue in 30 pts (M/F 11/19), myalgia in 28 (M/F 11/17) and depression in 21 (M/F 4/17), followed by liver function test elevation (n=9), headache (n=9), alopecia (n=8) and skin reaction (n=7). In two pts with autoimmune co-morbidities (rheumatoid arthritis, psoriasis), flare-up of symptoms related to autoimmune activity were seen, leading to discontinuation of therapy. Only one vascular event occurred in a 64 year old woman with PV, in CR since 92 months, who developed a myocardial infarction after 94 months of IFN-α-2b treatment. A total of 43 pts (M 16/41, 39%, F 27/59, 46%) discontinued therapy, of whom 34 (M 13/41, 32%, F 21/59, 36%) due to side effects. The most common cause of discontinuation of therapy due to side effects was depression (15/21), followed by fatigue (12/30) and myalgia (9/28). Nineteen (19/34, 58%) of the pts who discontinued therapy due to side effects were in CR. Discontinuation due to other reasons than side effects were lack of efficacy/progression of disease (n=5), co-morbidities (n=2), CR including molecular response (n=2) and pregnancy (n=1). Out of the 53 pts with ET and MF, 25 were JAK2V617F mutated and 14 had a CALR-mutation. No significant differences between these two groups were seen regarding side effects or discontinuation rate. Out of the 57 pts remaining on IFN-α, 19 still received IFN-α-2b (19/35, 54%), 7 PegIFN-α-2b (7/12, 58%) and 31 PegIFN-α-2a (31/53, 58%). Conclusion In this retrospective cohort study, the treatment discontinuation rate due to side effects was higher than in previous reports. This may be explained by the relatively long median duration of treatment in this cohort, reflecting a poor tolerance of low-grade toxicity over time. Depression was frequent and the most common reported side effect when therapy was discontinued. Gender difference, with females reporting a higher incidence of depression and a larger total burden of AE, was noted. The frequency of thromboembolic events was very low in this IFN-α treated cohort. Table 1. IFN-α treatment characteristics. Type of Interferon Patiens (n) Dose per week–median (range) Treatment time-median IFN α-2b 35 9 MIE (1,2-20) 58 PegIFN α-2b 12 40 μg (30-80) 46 PegIFN α-2a 53 90 μg (30-135) 15 Disclosures No relevant conflicts of interest to declare.

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