DR. MOHAMMAD ETMINAN, M.D.

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This study looked at the risk of a specific eye condition called acute angle closure (AAC) in patients with osteoporosis who use bisphosphonates, a common medication for bone health. Researchers analyzed health data from over 208,000 patients and found that those using bisphosphonates were 1.78 times more likely to develop AAC compared to non-users, with an even higher risk of 2.12 times for patients taking risedronate. Understanding this risk is important because it helps ensure that patients and doctors can make safer medication choices. Who this helps: This helps patients with osteoporosis and their doctors.

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This study investigated the potential connection between clozapine, a common medication for schizophrenia, and the risk of developing Hodgkin and non-Hodgkin lymphoma by analyzing a large database of adverse event reports. The findings showed that patients taking clozapine had more than three times the risk of Hodgkin lymphoma (3.76 times) and non-Hodgkin lymphoma (3.62 times) compared to those not taking this drug. This is important because it highlights a significant health risk for patients who rely on clozapine, indicating the need for better monitoring and safety measures for these individuals. Who this helps: This helps patients taking clozapine and their doctors.

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This study examined the link between hormone treatments, specifically progestogens and estrogens, and the risk of developing meningiomas, a type of brain tumor. It found that certain progestogens, like promegestone, significantly increased the risk with an odds ratio of 2,620, while estradiol, a common estrogen, had a high risk as well with an odds ratio of 17.8. These findings are important because they highlight the different risks associated with hormone therapies, suggesting that doctors should consider these risks when prescribing hormonal treatments. Who this helps: This helps patients who use hormonal contraceptives and their healthcare providers.

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This study looked at the relationship between using medroxyprogesterone acetate (MPA), a common hormonal birth control, and the risk of developing meningiomas, a type of brain tumor. It found that women who used MPA for more than one year had a risk of developing meningiomas that was more than three and a half times higher (an incidence rate ratio of 3.55) compared to those using another type of contraceptive called ethinylestradiol-levonorgestrel. This is important because it highlights the need for careful consideration of the long-term use of MPA and its potential health risks. Who this helps: This helps patients considering hormonal contraceptives, particularly those at risk for meningiomas.

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This study looked at two statistical tools, the propensity score and the disease risk score, which help researchers account for confounding factors when studying the effects of exposures on health outcomes. The researchers used diagrams to explain how these tools work and demonstrated that when using them correctly, the results become more accurate by removing the influence of confounding variables. Understanding and applying these methods is important because it leads to better research findings and can ultimately improve patient care. Who this helps: This helps researchers and healthcare professionals improve the accuracy of health studies.

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This study examined whether taking oral nitrates, a treatment for chronic heart disease, affects the risk of developing eye conditions like ocular hypertension (OHT) and open-angle glaucoma (OAG). Researchers found that patients using oral nitrates had a lower risk of developing OAG and primary open-angle glaucoma over three years (28% and 33% lower risk, respectively) compared to those not using nitrates. However, nitrate use did not impact the risk of OHT. Who this helps: This information benefits patients with chronic heart disease by potentially reducing their risk of developing serious eye conditions.

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This study looked at whether using anti-tumor necrosis factor alpha (TNFα) medications, which help treat conditions like arthritis and bowel diseases, increases the risk of developing multiple sclerosis (MS). The researchers found that previous studies have produced mixed results, partly due to biases that can affect data interpretation. By using a specific method called causal directed acyclic graphs (cDAGs), they aimed to clarify these biases, which helps improve the reliability of future research on this topic. Who this helps: Patients using anti-TNFα medications and their doctors.

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This study looked at whether using diuretics (medications that help remove excess fluid) increases the risk of acute angle closure (AAC), a sudden eye condition that can cause blindness. Researchers analyzed data from over 700,000 diuretic users and found that there was no significant increase in the risk of AAC among those currently using these medications, with a risk ratio close to 1.06, which means diuretics do not seem to increase the chances of this condition. This matters because it reassures patients and doctors that diuretics are safe in relation to the risk of AAC. Who this helps: Patients who are prescribed diuretics and their healthcare providers.

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This study looked at the risk of eye problems in breast cancer patients taking aromatase inhibitors (AIs), which are common medications for this condition. Researchers analyzed reports from the FDA and found 322 cases of eye issues linked to AIs, with anastrozole having the most problems (163 cases), particularly strong ties to specific issues like vitreomacular traction and macular edema. This is important because awareness of these risks can help doctors monitor and manage patients more effectively while they are on these treatments. Who this helps: This helps patients undergoing breast cancer treatment and their doctors.

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This study looked at the eye problems that can happen after patients receive CAR-T cell therapy, a type of cancer treatment. Researchers found 53 reported eye issues from an FDA database, with the most common problems being pupil dilation and dry eyes. Additionally, they reviewed case reports involving 19 patients who experienced 27 eye-related events after treatment. Understanding these side effects is important for doctors to help manage and better anticipate complications for cancer patients. Who this helps: This helps patients undergoing CAR-T therapy and their doctors.

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This study looked at the risk of developing glaucoma, a serious eye condition, in people using ADHD medications like atomoxetine, methylphenidate, and amphetamines. They found that users of atomoxetine and amphetamines were over twice as likely to develop angle closure glaucoma (ACG), while users of methylphenidate had a 23% increased risk for open angle glaucoma (OAG). This matters because many people, both medically and recreationally, use these ADHD medications, and being aware of the potential eye health risks is crucial. Who this helps: Patients using ADHD medications and their doctors.

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This study examined the side effects linked to the cancer treatment atezolizumab, which helps the immune system fight tumors. Researchers found 49 different immune-related problems that could affect multiple body systems, with the most serious risks for conditions like brain inflammation (93 times more likely), heart inflammation (56 times), and liver issues (49 times). Understanding these side effects is important because they can seriously affect patients' health, even though some may also be linked to better survival rates in cancer treatment. Who this helps: This information is valuable for doctors treating cancer patients with atezolizumab.

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This study looked at the most common side effects caused by cancer treatments known as immune checkpoint inhibitors (ICIs), specifically focusing on four types: PD-1, PD-L1, CTLA-4, and LAG-3. The researchers found that the top side effects included diarrhea and fatigue, with other serious issues like hypothyroidism occurring, especially with certain drugs: about 45% of patients experienced fatigue and 30% had diarrhea. Understanding these side effects helps doctors better manage and treat patients receiving these therapies. Who this helps: This research benefits patients undergoing cancer treatment and their doctors.

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This study looked at the risks of developing certain eye conditions—specifically pigmentary degeneration of the iris and pigmentary glaucoma—associated with the use of fluoroquinolone antibiotics, particularly moxifloxacin. Researchers followed over 1.2 million people and found that 542 developed pigmentary degeneration of the iris and 460 developed pigmentary glaucoma. Notably, the risk for users of moxifloxacin was significantly higher, with a rate of 10.2 cases per 1,000 people per year, compared to just 2.6 cases for users of another antibiotic, azithromycin. Who this helps: This information is important for patients needing treatment with fluoroquinolone antibiotics, as well as their doctors.

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This study investigated how disease latency bias (DLB) affects research on diseases that develop over time, like Alzheimer’s disease and cancer. Researchers identified four ways that DLB can lead to misleading results in studies: unmeasured confounding, reverse causality, selection bias, and bias through a mediator. Understanding these biases is important for researchers to improve the accuracy of their studies, ultimately leading to better findings about chronic diseases. Who this helps: This helps researchers and doctors conducting studies on chronic diseases.

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This study looked at how to deal with missing data in medical research when some information is dependent on other information. The researchers found that using simple methods to fill in these gaps can be more effective than ignoring some of the data, which can lead to less efficient results. This is important because better handling of missing data can improve the quality of research findings and lead to more accurate conclusions. Who this helps: This helps researchers and healthcare professionals.

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This study looked at whether different types of eye drops used to treat glaucoma affect the chances of getting herpes-related eye infections again. Researchers analyzed data from nearly 20,000 people who used glaucoma medications and found that 684 had a recurrence of these infections, but the use of any of the glaucoma medications did not increase the risk of having these infections come back. This is important because it reassures patients and doctors that common glaucoma treatments are not likely to lead to more serious eye issues related to herpes. Who this helps: Patients with glaucoma who are concerned about the risk of eye infections.

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This study looked at whether using a specific class of medications (anti-TNFα drugs) affects the risk of developing multiple sclerosis (MS) in patients with rheumatic diseases and inflammatory bowel diseases in Canada. They found that among 296,918 patients with rheumatic diseases, those who used anti-TNFα had more than double the risk of developing MS compared to those who did not use the drugs (risk ratio of 2.05). In patients with inflammatory bowel disease, the increase in risk was smaller and not statistically significant (risk ratio of 1.35). Who this helps: This information is important for patients with rheumatic diseases and their doctors to consider when making treatment choices.

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This study looked at the risk of increased eye pressure after patients received injections of three different drugs used to treat eye conditions: bevacizumab, ranibizumab, and aflibercept. It found that nondiabetic patients who received bevacizumab had more than twice the risk (2.20 times) and those who received ranibizumab had almost twice the risk (1.88 times) of developing increased eye pressure compared to those who received aflibercept. This is important because high eye pressure can lead to serious vision problems, so knowing which drug has a higher risk can help doctors make better treatment choices. Who this helps: This helps patients and doctors in deciding which eye treatment to use.

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This study looked at how drinking alcohol affects the risk of breast cancer by analyzing data from 932 women with breast cancer and 1,000 healthy women. Initially, researchers found a weak link between alcohol and breast cancer, but after correcting for errors in how alcohol use was reported, they found that drinking could increase the risk by about 82% to 167%. This is important because it highlights the need to accurately assess alcohol consumption when examining its effects on breast cancer risk. Who this helps: This helps patients and healthcare providers better understand the risks associated with alcohol consumption.

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This study looked at the impact of smoking on different types of metabolic syndrome in a group of 4,857 Iranians aged over 20. It found that smokers were more likely to fall into the low-risk category of metabolic syndrome, with a 2.19 times higher chance compared to those without metabolic syndrome. However, smoking showed no link to moderate or high-risk classes of metabolic syndrome. Who this helps: This information is useful for healthcare providers and patients in understanding how smoking is related to lower risk of metabolic syndrome.

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This research is studying how often and under what conditions hydroxychloroquine (HCQ) can harm the eyes of patients with systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) who have been taking the medication for over five years. The researchers will follow 5,508 patients in British Columbia and conduct regular eye screenings to check for any damage. It's important to understand this risk better to safeguard patients’ vision and ensure effective treatment for their conditions. Who this helps: Patients with systemic lupus erythematosus and rheumatoid arthritis.

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This study investigated the risk of maculopathy, a serious eye condition, in individuals using pentosan polysulfate sodium (PPS), a drug for interstitial cystitis. It found that PPS users had more than two and a half times the risk of developing maculopathy compared to those using another pain medication, amitriptyline. Notably, the risk significantly increases with longer use: people using PPS for more than three years had a 9.5 times higher risk of maculopathy compared to those who used it for a year or less. Who this helps: This information is vital for patients taking PPS and their doctors, particularly those managing long-term treatment plans.

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This study looked at whether men using certain medications for erectile dysfunction (called PDE5 inhibitors) are at a higher risk of serious eye problems, specifically conditions like retinal detachment, retinal blockage, and optic nerve issues. Researchers found that men regularly using these medications had a 1.85 times higher chance of developing one of these eye conditions compared to those who did not use them, with specific rates of 3.8 cases of retinal detachment and 3.2 cases of optic nerve issues per 10,000 men each year. This is important because it highlights a potential risk for men taking these medications, prompting them to monitor their eye health and report any vision changes to their doctors. Who this helps: This helps men using PDE5 inhibitors and their doctors.

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This study looked at whether using topical prostaglandin analogues (PGAs), which are medications often used to control eye pressure, increases the risk of miscarriage in pregnant women. Researchers analyzed health data from nearly 8,000 women and found that 4.6% of those using PGAs experienced a miscarriage compared to 7% in women who weren't using these medications, suggesting no significant link between PGA use and miscarriage risk. Understanding this relationship is essential for guiding treatment options for pregnant women with eye conditions. Who this helps: This information benefits pregnant patients and their doctors by providing clarity on the safety of certain eye medications during pregnancy.

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This research study looked at how certain factors (called risk factors) affect each other when researchers focus on a specific group (known as a collider). The findings showed that, depending on the specific type of risk interaction, two factors can either be independent or show a positive or negative relationship, with specific associations defined by mathematical measures. This research is important because it helps clarify how conditioning on a collider can lead to misunderstandings about the relationships between different risk factors, which can influence research outcomes. Who this helps: This helps researchers and scientists better understand risk factors in medical studies.

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This study looks at how to analyze situations where one event can prevent another from happening, especially in studies tracking the timing of specific health outcomes. Researchers compared different methods for analyzing these situations, particularly focusing on two approaches: the Fine-Gray method and the cause-specific method. They found that the Fine-Gray method isn't the best choice for these types of studies and provided clear diagrams to help doctors understand when and how to use the better approach. Who this helps: This benefits doctors and researchers designing studies on patient outcomes.

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This study looked at the eye-related side effects that may occur in women undergoing taxane-based chemotherapy, which includes drugs like docetaxel and paclitaxel, used to treat various cancers. The researchers found that women taking taxanes had a significantly higher risk of experiencing epiphora (excessive tearing) and optic neuropathy (nerve damage affecting vision), with risk levels being 5.15 times and 4.44 times greater, respectively, compared to those taking tamoxifen. While the risk for cystoid macular edema (CME) was not as strong, it still suggested an increased risk. Who this helps: This research benefits patients undergoing chemotherapy, particularly those with breast cancer, by informing them and their doctors about potential eye-related side effects.

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This study examined how changes in the modified creatinine index (MCI), which indicates muscle mass, affect survival rates in patients with end-stage renal disease (ESRD). Researchers reviewed data from 553 patients over eight years and found that those with a declining MCI were significantly more likely to die, with a mortality rate estimate showing a 43% increase in risk compared to those whose MCI did not decline. These findings are important because they suggest that monitoring muscle mass could be critical for improving survival in ESRD patients. Who this helps: This helps patients with end-stage renal disease and their healthcare providers.

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This study looked at how P-values and confidence intervals are often misunderstood in medical research. The authors argue that these terms frequently lead to overconfidence in results, as they don't account for biases in the data. They propose a new way to interpret P-values as measures of how well the data matches the research model and introduce the S-value as a clearer way to understand these concepts, using a simple coin toss analogy. Who this helps: This helps researchers and medical professionals improve their understanding of statistical results to make better decisions in clinical practice.