Drug-induced Adverse Events

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects"); +13 new citations

Sat, 2019-09-21 06:00

13 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects")

These pubmed results were generated on 2019/09/21

PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.

Categories: Literature Watch

A new paradigm for medication error research.

Fri, 2019-09-20 06:41
Related Articles

A new paradigm for medication error research.

Br J Anaesth. 2019 10;123(4):e483-e484

Authors: Feinstein MM, Castro P

PMID: 31331648 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Therapeutic drug monitoring of imipenem and the incidence of toxicity and failure in hospitalized patients: a retrospective cohort study.

Fri, 2019-09-20 06:41
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Therapeutic drug monitoring of imipenem and the incidence of toxicity and failure in hospitalized patients: a retrospective cohort study.

Clin Microbiol Infect. 2019 Mar;25(3):383.e1-383.e4

Authors: Bricheux A, Lenggenhager L, Hughes S, Karmime A, Lescuyer P, Huttner A

Abstract
OBJECTIVES: Therapeutic drug monitoring (TDM) of beta-lactam antibiotics is increasingly employed to ensure adequate antibiotic exposure and slow emergence of resistance. Imipenem's therapeutic range has not been defined; we report plasma concentrations and clinical outcomes of patients receiving imipenem for bacterial infections.
METHODS: All hospitalized adult patients undergoing imipenem TDM during therapy for suspected or confirmed bacterial infections between 1 January 2013 and 28 February 2017 were included in this single-centre retrospective cohort. The primary outcome was incidence of clinical toxicity; secondary outcomes included incidence of clinical failure and median imipenem concentrations in those with and without toxicity and/or failure. Total imipenem concentrations were measured via high-performance liquid chromatography with ultraviolet detection.
RESULTS: A total of 403 imipenem levels were drawn from 300 patients. Fifteen (5%) patients experienced an adverse event considered at least possibly related to imipenem. Eighty-eight (29%) patients had clinical failure; augmented renal clearance appeared to emerge as a protective factor against failure (OR 0.42; 95% CI 0.20-0.89). Median first-measure trough concentration was 3.2 mg/L (IQR 1.7-6.5). Patients with suspected toxicity did not have higher concentrations. Patients whose dose was not increased after a trough level <2 mg/L was returned trended towards increased clinical failure (3/28 (11%) vs. 12/63 (19%)), though the difference was not statistically significant.
CONCLUSIONS: Toxicity was rare and clinical failure frequent in this cohort of patients whose imipenem concentrations were generally low and occasionally undetectable. Larger trials are needed to define optimal imipenem exposure.

PMID: 30528370 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Antipsychotics with similar association kinetics at dopamine D2 receptors differ in extrapyramidal side-effects.

Fri, 2019-09-20 06:41
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Antipsychotics with similar association kinetics at dopamine D2 receptors differ in extrapyramidal side-effects.

Nat Commun. 2018 09 03;9(1):3577

Authors: Zeberg H, Sahlholm K

PMID: 30177830 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Reply to 'Antipsychotics with similar association kinetics at dopamine D2 receptors differ in extrapyramidal side-effects'.

Fri, 2019-09-20 06:41
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Reply to 'Antipsychotics with similar association kinetics at dopamine D2 receptors differ in extrapyramidal side-effects'.

Nat Commun. 2018 09 03;9(1):3568

Authors: Sykes DA, Lane JR, Szabo M, Capuano B, Javitch JA, Charlton SJ

PMID: 30177696 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

CDK4/6 Inhibitors in Combination With Hormone Therapy for HR+/HER2- Advanced Breast Cancer: A Systematic Review and Meta-analysis of Randomized Controlled Trials.

Fri, 2019-09-20 06:41
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CDK4/6 Inhibitors in Combination With Hormone Therapy for HR+/HER2- Advanced Breast Cancer: A Systematic Review and Meta-analysis of Randomized Controlled Trials.

Clin Breast Cancer. 2018 10;18(5):e943-e953

Authors: Deng Y, Ma G, Li W, Wang T, Zhao Y, Wu Q

Abstract
BACKGROUND: This meta-analysis of randomized controlled trials aimed to comprehensively assess the efficacy and toxicity of cyclin-dependent kinase (CDK) 4/6 inhibitors in advanced breast cancer (ABC) with hormone-receptor positive (HR+) and human epidermal growth factor receptor 2 negative (HER2-) disease.
METHODS: We performed a systematical search using Cochrane Library, PubMed, Embase, and Web of Science up to March 2018. Only phase 2 and 3 randomized clinical trials assessing the efficacy and toxicity of the combination regimen of CDK4/6 inhibitors plus hormone therapy compared with hormone therapy alone were eligible for this meta-analysis. The pooled analyses of relative risk (RR) and hazard ratio were carried out by Stata software.
RESULTS: A total of 7 randomized controlled trials including 3854 patients with HR+/HER2- ABC were included in this meta-analysis. The pooled hazard ratio for progression-free survival was 0.54 (95% confidence interval, 0.49-0.59; P < .001), and the pooled RR for the objective response rate in all intent-to-treat patients was 1.51 (95% confidence interval, 1.26-1.81; P < .001). The pooled RRs for all grade adverse events (AEs) and grade 3/4 AEs were 1.07 (95% confidence interval, 1.03-1.11; P < .001) and 2.81 (95% confidence interval, 2.54-3.11; P < .001), respectively. However, to investigate the influence of CDK4/6 inhibitors on overall survival, sufficient follow-up is still needed.
CONCLUSION: CDK4/6 inhibitors plus hormone therapy can significantly prolong the progression-free survival of patients with HR+/HER2- ABC and improve the objective response rate compared to conventional hormone therapy alone. The combined regimen results in a higher risk of AEs, especially grade 3/4 AEs.

PMID: 29804650 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Cabazitaxel Plus Lapatinib as Therapy for HER2+ Metastatic Breast Cancer With Intracranial Metastases: Results of a Dose-finding Study.

Fri, 2019-09-20 06:41
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Cabazitaxel Plus Lapatinib as Therapy for HER2+ Metastatic Breast Cancer With Intracranial Metastases: Results of a Dose-finding Study.

Clin Breast Cancer. 2018 10;18(5):e781-e787

Authors: Yardley DA, Hart LL, Ward PJ, Wright GL, Shastry M, Finney L, DeBusk LM, Hainsworth JD

Abstract
BACKGROUND: Lapatinib is an oral small molecule tyrosine kinase epidermal growth factor receptor-1/HER2 inhibitor that crosses the blood-brain barrier and is active against central nervous system (CNS) metastases. Cabazitaxel is a taxoid that is effective against taxane-resistant metastatic breast cancer (MBC) and has distinguished itself by its ability to cross the blood-brain barrier. The present phase II study (ClinicalTrials.gov identifier, NCT01934894) evaluated the combination of these agents to treat HER2+ MBC patients with CNS metastases.
MATERIALS AND METHODS: Patients with HER2+ MBC and ≥ 1 untreated or progressive, measurable CNS metastasis were eligible. Using a 3+3 dose escalation design, patients were treated with escalating doses of intravenous cabazitaxel every 21 days and oral lapatinib daily in 21-day treatment cycles. Intracranial disease restaging was performed every 2 cycles for the first 8 cycles and then every 3 cycles until progression or unacceptable toxicity.
RESULTS: Eleven patients were treated at 2 dose levels. Six patients were treated at dose level 1 (intravenous cabazitaxel 20 mg/m2 plus oral lapatinib 1000 mg daily), and five were treated at dose level 2 (intravenous cabazitaxel 25 mg/m2 plus oral lapatinib 1000 mg daily). The most common treatment-related adverse events were myelosuppression, diarrhea, fatigue, and skin toxicity. A total of 5 dose-limiting toxicity events occurred. No intra- or extracranial objective responses were observed.
CONCLUSION: The combination of cabazitaxel plus lapatinib was not feasible because of toxicity and because no objective CNS activity was seen in the 5 evaluable patients. The role of cabazitaxel to treat breast cancer patients with CNS metastases remains undefined.

PMID: 29678476 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Risk of drug-related falls among noninstitutionalized older adults.

Fri, 2019-09-20 06:41
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Risk of drug-related falls among noninstitutionalized older adults.

Rev Esc Enferm USP. 2018;52:e03319

Authors: García BP, González SM, Muñoz AMC, Antón-Solanas I, Caballero VG, Vela RJ

Abstract
OBJECTIVE: To determine the number of drugs taken per day, which represents a risk factor for falls among noninstitutionalized older adults with a history of falls in the last year.
METHOD: This was a descriptive study that used random sampling and the following measurement instruments: the WHO questionnaire for the study of falls in older adults, gait scale and geriatric depression scale and gait and balance. Univariate and bivariate analysis, nonparametric chi-squared test, and binary logistic regression were performed using the SPSS statistical program version 21.0.
RESULTS: 214 individuals participated in the study. Those who took ≥ 4 drugs presented higher risk of falling, p=0.010 OR=4.034. The same was not true for individuals who took ≤ 3 drugs, p=0.006 OR=0.335.
CONCLUSION: The use of four or more drugs per day was considered a risk factor for falls among older adults.

PMID: 29668792 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Adverse drug reactions to integrase strand transfer inhibitors.

Fri, 2019-09-20 06:41
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Adverse drug reactions to integrase strand transfer inhibitors.

AIDS. 2018 04 24;32(7):903-912

Authors: Lepik KJ, Yip B, Ulloa AC, Wang L, Toy J, Akagi L, Lima VD, Guillemi S, Montaner JSG, Barrios R

Abstract
OBJECTIVES: To describe and compare integrase strand transfer inhibitor (INSTI) adverse drug reactions (ADRs) for raltegravir, elvitegravir-cobicistat, and dolutegravir.
DESIGN: Population-based, retrospective cohort.
METHODS: Antiretroviral-experienced and naive persons at least 19 years old were included if they received their first prescription for raltegravir, elvitegravir-cobicistat, or dolutegravir in British Columbia, Canada, in 2012-2014, and were followed for 2 years until 31 December 2016. The primary outcome was an ADR resulting in INSTI discontinuation. ADR rates and 95% confidence intervals (95% CIs) were calculated by Poisson method. Cox proportional-hazards regression estimated the hazard ratio for ADR-related INSTI discontinuation, adjusted for confounders. ADR symptoms were compared across INSTIs.
RESULTS: There were 1344 persons contributing 1464 person-INSTI exposures. The cohort was predominantly male (79%) and antiretroviral therapy-experienced (85%). ADR events and unadjusted ADR rates (95% CI) per 100 person-years were raltegravir 24 of 551 (4.4%), 2.91 (1.95, 4.35); elvitegravir-cobicistat 38 of 394 (9.6%), 5.94 (4.32, 8.16); and dolutegravir 27 of 519 (5.2%), 2.96 (2.03, 4.31). The ADR rate for elvitegravir-cobicistat was double that of dolutegravir (adjusted hazard ratio 2.24, 95% CI 1.13, 4.44), but not significantly different for either dolutegravir or elvitegravir versus raltegravir. Elvitegravir-cobicistat-treated persons had a significantly higher proportion of gastrointestinal and general (fatigue, malaise) ADRs. Neuropsychiatric ADRs were more frequent with dolutegravir, but not significantly different between INSTIs. Among those switching between INSTIs, there was no apparent relationship between experiencing an ADR to one INSTI and subsequent intolerance to another.
CONCLUSIONS: This study affirms INSTIs are well tolerated during routine clinical use. Consideration of differences in side effect profiles can inform antiretroviral therapy individualization.

PMID: 29424784 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects"); +28 new citations

Thu, 2019-09-19 09:15

28 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects")

These pubmed results were generated on 2019/09/19

PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.

Categories: Literature Watch

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects"); +27 new citations

Thu, 2019-09-19 06:00

27 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects")

These pubmed results were generated on 2019/09/19

PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.

Categories: Literature Watch

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects"); +16 new citations

Tue, 2019-09-17 11:42

16 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects")

These pubmed results were generated on 2019/09/17

PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.

Categories: Literature Watch

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects"); +16 new citations

Tue, 2019-09-17 06:00

16 new pubmed citations were retrieved for your search. Click on the search hyperlink below to display the complete search results:

("drug-induced" OR "drug-related") AND ("adverse events" OR "side effects" OR "side-effects")

These pubmed results were generated on 2019/09/17

PubMed comprises more than millions of citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.

Categories: Literature Watch

The frequency of photosensitizing drug dispensings in Austria and Germany: A correlation with their photosensitizing potential based on published literature.

Sun, 2019-09-15 07:42
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The frequency of photosensitizing drug dispensings in Austria and Germany: A correlation with their photosensitizing potential based on published literature.

J Eur Acad Dermatol Venereol. 2019 Sep 14;:

Authors: Hofmann GA, Gradl G, Schulz M, Haidinger G, Tanew A, Weber B

Abstract
BACKGROUND: Drug-induced photosensitivity refers to the development of cutaneous adverse events due to interaction between a pharmaceutical compound and sunlight. Although photosensitivity is a very commonly listed side effect of systemic drugs reliable data on its actual incidence are lacking so far.
OBJECTIVES: A possible approach to evaluate the real-life extent of drug-induced photosensitivity would be an analysis of the frequency of exposure to a given photosensitizing drug combined with an indicator of its photosensitizing potential. This could serve as a basis for developing a pharmaceutical 'heatmap' of photosensitivity.
METHODS: The presented study investigated the number of reimbursed dispensed packages of potentially photosensitizing drugs in Germany (DE) and Austria (AT) between 2010 and 2017 based on nationwide health insurance-based databases. In addition, an indicator for the photosensitizing potential was established for each drug based on the number of reports on photosensitivity in literature.
RESULTS: This analysis includes means of 632.826.944 (+/-14.894.918) drug dispensings per year in DE and 113.270.754 (+/-1.964.690) in AT. Out of these, the mean percentage of drugs that enlist photosensitivity as a potential side effect was 49,5% (+/- 0,7)% in DE and 48,2% (+/- 1,2) in AT. When plotting the number of reimbursed dispensed packages versus the number of reports on photosensitivity two categories of drugs show high numbers for both parameters, that is diuretics and non-steroidal anti-inflammatory drugs (NSAIDs).
CONCLUSIONS: Diuretics and NSAIDs appear to be responsible for the greatest part of exposure to photosensitizing drugs with potential implication on public health.

PMID: 31520553 [PubMed - as supplied by publisher]

Categories: Literature Watch

Trimethoprim-sulfamethoxazole Induced Pancytopenia: A Common Occurrence but A Rare Diagnosis.

Sat, 2019-09-14 10:14
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Trimethoprim-sulfamethoxazole Induced Pancytopenia: A Common Occurrence but A Rare Diagnosis.

Cureus. 2019 Jul 02;11(7):e5071

Authors: Parajuli P, Ibrahim AM, Siddiqui HH, Lara Garcia OE, Regmi MR

Abstract
Trimethoprim-sulfamethoxazole (TMP-SMX) is a bacteriostatic antimicrobial medication used for the treatment of a variety of infections and has many reported skin and hematologic side effects. Due to the easy availability and cost effectiveness, TMP-SMX is one of the medications commonly used for treatment of skin and soft tissue in patients with methicillin-resistant Staphylococcus aureus (MRSA) infection. One of the rare hematologic manifestations of TMP-SMX is pancytopenia, which is a reduction in all cell lines. In this case report, we are documenting a case of pancytopenia due to severe drug reaction to TMP-SMX in a 70-year-old female after two weeks of medication use. Upon initial stabilization she underwent a thorough workup and was subsequently diagnosed with severe drug-induced pancytopenia. Detailed history, early diagnosis, prompt discontinuation of the offending medication along with supportive care remain the mainstay of treatment in the management of TMP-SMX induced pancytopenia.

PMID: 31516782 [PubMed]

Categories: Literature Watch

Learning Drug Function from Chemical Structure with Convolutional Neural Networks and Random Forests.

Sat, 2019-09-14 07:12

Learning Drug Function from Chemical Structure with Convolutional Neural Networks and Random Forests.

J Chem Inf Model. 2019 Sep 13;:

Authors: Meyer JG, Liu S, Miller IJ, Coon JJ, Gitter A

Abstract
Empirical testing of chemicals for drug efficacy costs many billions of dollars every year. The ability to predict the action of molecules in silico would greatly increase the speed and decrease the cost of prioritizing drug leads. Here, we asked whether drug function, defined as MeSH 'Therapeutic Use' classes, can be predicted from only chemical structure. We evaluated two chemical structure-derived drug classification methods, chemical images with convolutional neural networks and molecular fingerprints with random forests, both of which outperformed previous predictions that used drug-induced transcriptomic changes as chemical representations. This suggests that a chemical's structure contains at least as much information about its therapeutic use as the transcriptional cellular response to that chemical. Further, because training data based on chemical structure is not limited to a small set of molecules for which transcriptomic measurements are available, our strategy can leverage more training data to significantly improve predictive accuracy to 83-88%. Finally, we explore use of these models for prediction of side effects and drug repurposing opportunities, and demonstrate the effectiveness of this modeling strategy for multi-label classification.

PMID: 31518132 [PubMed - as supplied by publisher]

Categories: Literature Watch

Autoimmune hepatitis in patients with human immunodeficiency virus infection: A systematic review of the published literature.

Sat, 2019-09-14 07:12

Autoimmune hepatitis in patients with human immunodeficiency virus infection: A systematic review of the published literature.

Medicine (Baltimore). 2019 Sep;98(37):e17094

Authors: Mubder M, Azab M, Jayaraj M, Cross C, Lankarani D, Dhindsa B, Pan JJ, Ohning G

Abstract
BACKGROUND: Liver disease in patients with HIV is common and typically has complex and multifactorial presentations that represent a major cause of morbidity and mortality. Autoimmune hepatitis (AIH) is rarely reported in patient with HIV and the disease course and clinical outcomes for treatment have not been well characterized. We are aiming to determine the patient characteristics, disease prevalence, and treatment outcomes from published articles of patients with HIV and AIH.
METHOD: A systematic search of PubMed, Web of Science, and Google Scholar through February 20, 2019 identified 15 studies that reported the outcomes of AIH in patients with HIV. Because of the small sample sizes and skewed distributions, resampling tests of mean differences using permutation distributions (MAXn = 10,000 permutations) were utilized; analyses were performed using R (v. 3.5.1). Categorical differences were calculated using Fisher exact test for odds ratio = 1 (equal odds), and Cramer V was calculated for effect size; analyses were completed in SPSS (v. 25).
RESULTS: By reviewing 15 studies reporting a total of 35 patients with AIH and HIV, male patients were found to have significantly higher aspartate transaminase and alanine transaminase levels at time of diagnosis. No other significant findings identified. The CD4 count and viral load did not show significant correlation with AIH diagnosis or its prognosis. All patients but one who presented with severe immune deficiency and responded to highly active anti-retroviral therapy received immunosuppressive treatment without side effects and achieved remission except 2 lost to follow-up and 3 expired.
CONCLUSION: Although rare, but AIH can develop in patients with HIV and physicians should consider it in the differential diagnosis for HIV patients presented with abnormal liver function tests, especially after excluding hepatitis C virus and drug-induced liver injury.Patients with immune deficiency disorders who present with AIH can be treated safely with steroid either as monotherapy or in combination with another immune suppressant therapy.

PMID: 31517833 [PubMed - in process]

Categories: Literature Watch

Severe drug-induced hypertriglyceridemia treated with plasmapheresis in children with acute lymphoblastic leukemia.

Sat, 2019-09-14 07:12
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Severe drug-induced hypertriglyceridemia treated with plasmapheresis in children with acute lymphoblastic leukemia.

Transfus Apher Sci. 2019 Sep 05;:

Authors: Zawitkowska J, Lejman M, Zaucha-Prażmo A, Sekuła N, Greczkowska-Chmiel T, Drabko K

Abstract
Asparaginase (ASP) and steroids are a main part of treatment for ALL, in both front-line and relapse setting. It is known, that ASP can cause several toxicities such as hypersensitivity, pancreatitis, as well as severe lipid and coagulation disturbances. Administered steroids can result in diabetes, obesity, hyponatremia and also mild hyperlipemia, which can intensify side effects of asparaginase. When triglyceride elevation is greater than 1000 mg/dl, the risk of pancreatitis is significantly increased. We report two patients who were hospitalized in Department of Pediatric Hematology, Oncology and Transplantology, Medical University of Lublin in Poland and developed severe hypertriglyceridemia after receiving asparaginase and steroid therapy for acute lymphoblastic leukemia. These patients were treated using plasmapheresis. This procedure was performed with a venous catheter in the femoral vein and 5% albumin or fresh frozen plasma as the replacement fluid. We analysed the laboratory and clinical data of these children. Plasmapheresis was well tolerated in both cases and a decrease of hypertriglyceridemia was quickly observed. However, the girl developed pancreatitis. In our opinion, plasmapheresis appears to be safe and effective in reducing hypertriglyceridemia. We could recommend that this procedure should be performed early, as soon as the triglyceride level is above 1000 mg/dl, in order to prevent severe complications. Patients should continue chemotherapy without ASP. It is important to regularly monitor of the lipid profile, pancreatic enzymes and coagulation during ASP and steroids therapy.

PMID: 31515171 [PubMed - as supplied by publisher]

Categories: Literature Watch

The role of antimullerian hormone in assessing ovarian damage from chemotherapy, radiotherapy and surgery.

Sat, 2019-09-14 07:12
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The role of antimullerian hormone in assessing ovarian damage from chemotherapy, radiotherapy and surgery.

Curr Opin Endocrinol Diabetes Obes. 2018 12;25(6):391-398

Authors: Wong QHY, Anderson RA

Abstract
PURPOSE OF REVIEW: Iatrogenic ovarian damage can occur after chemotherapy, radiotherapy and surgery for cancer as well as for non-malignant conditions. This review describes the effects of such treatment on antimullerian hormone (AMH) and the implications of the fall in AMH in relation to ovarian function and fertility, especially in the era of improved fertility preservation strategies.
RECENT FINDINGS: The risk of gonadotoxicity differs between chemotherapy regimens. There is growing evidence that pretreatment AMH has prognostic significance for the degree of fall in AMH after treatment, the reversibility of ovarian damage and risk of premature ovarian insufficiency. The accuracy of prediction increases when age is coupled with AMH. The adverse effect of removal of endometriomas is increasingly clear, and AMH pre and post surgery useful is assessing the degree of damage to the ovary. The implications of low AMH after such treatment on natural fertility and reproductive lifespan are less clear. Apart from treatment effects, there are other coexisting conditions that can affect AMH which needs to be taken into consideration during interpretation of AMH before and after treatment.
SUMMARY: A fall in AMH in women after gonadotoxic treatment has been consistently described, with variable recovery, the accurate interpretation and clinical application of post-treatment AMH level on reproductive lifespan and fertility prediction needs to be studied in future larger prospective studies with longer follow-up.

PMID: 30299433 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

Automated assessment of levodopa-induced dyskinesia: Evaluating the responsiveness of video-based features.

Sat, 2019-09-14 07:12
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Automated assessment of levodopa-induced dyskinesia: Evaluating the responsiveness of video-based features.

Parkinsonism Relat Disord. 2018 08;53:42-45

Authors: Li MH, Mestre TA, Fox SH, Taati B

Abstract
INTRODUCTION: Technological solutions for quantifying Parkinson's disease (PD) symptoms may provide an objective means to track response to treatment, including side effects such as levodopa-induced dyskinesia. Vision-based systems are advantageous as they do not require physical contact with the body and have minimal instrumentation compared to wearables. We have developed a vision-based system to quantify a change in dyskinesia as reported by patients using 2D videos of clinical assessments during acute levodopa infusions.
METHODS: Nine participants with PD completed a total of 16 levodopa infusions, where they were asked to report important changes in dyskinesia (i.e. onset and remission). Participants were simultaneously rated using the UDysRS Part III (from video recordings analyzed post-hoc). Body joint positions and movements were tracked using a state-of-the-art deep learning pose estimation algorithm applied to the videos. 416 features (e.g. kinematics, frequency distribution) were extracted to characterize movements. The sensitivity and specificity of each feature to patient-reported changes in dyskinesia severity was computed and compared with physician-rated results.
RESULTS: Features achieved similar or superior performance to the UDysRS for detecting the onset and remission of dyskinesia. The best AUC for detecting onset of dyskinesia was 0.822 and for remission of dyskinesia was 0.958, compared to 0.826 and 0.802 for the UDysRS.
CONCLUSIONS: Video-based features may provide an objective means of quantifying the severity of levodopa-induced dyskinesia, and have responsiveness as good or better than the clinically-rated UDysRS. The results demonstrate encouraging evidence for future integration of video-based technology into clinical research and eventually clinical practice.

PMID: 29748112 [PubMed - indexed for MEDLINE]

Categories: Literature Watch

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