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29 [1.11-1.50]; 1.43 [1.24-1.64]; 1.03 [0.95-1.12], respectively). Subgroup analysis demonstrated that statins were significantly associated with invasive SCC and SCCis in patients over 60, but not in those under 60. Atorvastatin was only associated with an increased risk of SCCis; whereas, simvastatin was associated with an increased risk of both invasive SCC and SCCis. This whole-population study of Iceland demonstrates that statin exposure is associated with increased risk of SCC, but not BCC, in a low UV environment. The reasons are unclear, but our results may suggest that individuals receiving atorvastatin and simvastatin have differing levels of baseline keratinocyte cancer risk or that properties of a statin other than 'statin intensity' affect association with SCC.

While renal risk associated with short-term use of non-steroidal anti-inflammatory drugs (NSAID) has been anecdotally documented, no conclusive evidence is available on the renal safety, especially among hospitalized patients with reduced renal function. This study is to evaluate the risk of acute kidney injury (AKI) associated with NSAID use in hospital.

A retrospective matched cohort study utilizing electronic health records from two large academic tertiary-care hospitals was conducted. We defined AKI based on changes in SCr according to published AKI criteria. The hospital acquired AKI risk associated with inpatient NSAID use was assessed using a time-dependent Cox proportional hazard regression in pooled cohort as well as two sub cohorts stratified by baseline renal function.

A total of 18,794 admissions were included in the final cohort. Of 9397 admissions exposed to NSAIDs, 7914 and 1483 admissions were in the "without" and "with baseline renal impairment" cohort, with the same number of matching those who have preserved renal function. Further randomized controlled trials are needed to validate these observational findings.

Nasal irrigation or nebulizing aerosol of isotonic or hypertonic saline is a traditional method for respiratory or nasal care. A recent small study in outpatients with COVID-19 without acute respiratory distress syndrome suggests substantial symptom resolution. We therefore analyzed pharmacological/pharmacodynamic effects of isotonic or hypertonic saline, relevant to SARS-CoV-2 infection and respiratory care.

Mixed search method.

Due to its wetting properties, saline achieves an improved spreading of alveolar lining fluid and has been shown to reduce bio-aerosols and viral load. Saline provides moisture to respiratory epithelia and gels mucus, promotes ciliary beating, and improves mucociliary clearance. Coronaviruses and SARS-CoV-2 damage ciliated epithelium in the nose and airways. Saline inhibits SARS-CoV-2 replication in Vero cells; possible interactions involve the viral ACE2-entry mechanism (chloride-dependent ACE2 configuration), furin and 3CLpro (inhibition by NaCl), and the sodium channel ENaC.ID-19. Formal evaluation in mild COVID-19 is desirable as to establish efficacy and optimal treatment regimens.Minimally invasive mitral valve repair, recently, has become an alternative procedure to conventional mitral valve surgery, given its clinical benefits. Understanding the learning curve of a new procedure is important prior to its introduction. This study aimed to evaluate the learning curve for minimally invasive mitral valve repair and safety during the start-up period. The first 100 consecutive patients who underwent isolated minimally invasive mitral valve repair for mitral valve regurgitation were evaluated. The procedure was performed by a single surgeon at a single institution. Calculated cumulative sum analysis and cubic spline curve analysis were performed to evaluate the learning curves for the total procedure (TP), extracorporeal circulation (ECC), and aortic cross-clamping (ACC) times. ACC time was affected by the complexity of individual mitral valve repair; therefore, we analyzed the TP minus ACC (TP-ACC) time as a true learning curve by subtracting the ACC time from the TP time to exclude the difference of the complexity. Additionally, the operative outcome was assessed. Overall, the average TP, ECC, ACC, TP-ACC times were 211 ± 41, 133 ± 35, 108 ± 31, and 104 ± 4.9 min, respectively. All cubic spline curves depicted a decreasing trend, and improvements in TP, ECC, and ACC times were observed after 56 cases, while those of the TP-ACC time were observed after 68 cases. None of the patients experienced hospital mortality, reoperation for bleeding, respiratory failure, cerebral infarction with a disability, or recurrence of mitral valve regurgitation. Acute renal failure occurred in one patient. In conclusion, minimally invasive mitral valve repair can be introduced safely and provide a favorable outcome. However, a learning curve exists for the operative time factors. learn more Approximately 60 operations are required to achieve a consistent operative time.Methotrexate-associated lymphoproliferative disorder is recognized as a lymphoma that occurs following methotrexate administration. The lesion of the spine is extremely rare, and only one case of lesion in the lumbar spine has been reported so far. Here, we present a case of methotrexate-associated lymphoproliferative disorder of the thoracic spine in a 54-year-old woman with rheumatoid arthritis. The lesion formed an extra-skeletal tumor mass from lateral to the vertebral body to the paravertebral muscle extending posterior to the epidural space without bone destruction. Magnetic resonance imaging showed low signal intensities on both T1- and T2-weighted images and high signal intensity with short-tau inversion recovery. These radiological findings were similar to those for primary spinal lymphoma. The lesion rapidly paralyzed the patient, forcing her to be treated with posterior spinal decompression. The lesion could not be resected because it adhered to the dura. Following the histopathological diagnosis as methotrexate-associated lymphoproliferative disorder, methotrexate administration was terminated. The remaining mass lesion showed complete regression within 6 months. Methotrexate-associated lymphoproliferative disorder, which could be cured by the discontinuation of methotrexate, should be considered a differential diagnosis in spinal lesion cases showing lymphoma-like appearance with methotrexate treatment to avoid unnecessary treatments.