Use of Varenicline in Smokeless Tobacco Cessation: A Systematic Review and Meta-Analysis.

OBJECTIVE: Conduct a systematic review and meta-analysis on the effectiveness and safety of varenicline in smokeless tobacco (SLT) cessation. METHODS: PubMed, EMBASE, clinicaltrials.gov, and the Cochrane Registry were searched up to February 1, 2014, for randomized clinical trials (RCTs) comparing varenicline to placebo. Random effects Mantel-Haenszel summary relative risks (RRs), risk difference (RD), and 95% CIs were used for analysis and reporting of outcomes. Primary and secondary outcomes were the 7-day point prevalence of SLT abstinence at the end of 12 and 26 weeks, respectively. Adverse events reported include nausea, sleep disturbance, and mood disorders. RESULTS: Three published RCTs involving 744 SLT users with a mean age of 39.7 years, of which greater than 88% were males, were randomized to varenicline (n = 370) and placebo (n = 374). Subjects in the varenicline arm had a significantly higher 7-day point prevalence of SLT abstinence at 12 weeks (48% vs. 33%; RR = 1.45, 95% CI = 1.22-1.72, p < .0001, I2 = 0%; RD = 13%, 95% CI = 4%-23%, p = .008) but not at 26 weeks (49% vs. 39%; RR = 1.38, 95% CI = 0.93-2.03, p = .11, I2 = 51%). There were no statistically significant differences in the incidences of adverse events between the 2 arms but interpretation is limited by high heterogeneity. CONCLUSION: This pooled analysis suggests that varenicline is effective in achieving a 7-day point prevalence of SLT abstinence at 12 weeks but showed that this effect was not sustained at 26 weeks.

Dual versus single antiplatelet therapy in patients undergoing transcatheter aortic valve replacement: a systematic review and meta-analysis.

BACKGROUND: Although dual antiplatelet therapy (DAPT) with clopidogrel and aspirin is a widely accepted strategy in patients undergoing transcatheter aortic valve replacement (TAVR), this approach is not evidence based. We therefore sought to systematically review the current evidence for this practice in terms of 30-day outcome looking at stroke, MI, bleeding, and death. METHODS: Relevant studies were identified through electronic literature search. Studies involving single antiplatelet therapy (SAPT) and DAPT in patients undergoing TAVR were included. Study specific risk ratios were calculated and combined using random-effects model meta-analysis. RESULTS: Analysis of data from 410 patients, stroke occurred in seven (3.16%) of SAPT and six (3.17%) of DAPT RR=1.03 (95% CI, 0.36-2.96, P=0.96). In analysis of 530 patients, MI occurred in three (1.07%) of SAPT and one (0.40%) of DAPT RR=1.97 (95% CI, 0.29-13.29, P=0.49), significant bleeding (major, life threatening and bleeding requiring transfusion) occurred in 20 (7.11%) of SAPT and 43 (17.27%) of DAPT RR=0.41 (95% CI, 0.25-0.69, P=0.0006). Number needed to harm for major or life threatening bleeding was 10. Death occurred in 15 (6.78%) of SAPT and 15 (7.94%) of DAPT (RR 0.91; 95% CI 0.46-1.79, P=0.78). CONCLUSION: Our meta-analysis suggests that at 30 days following TAVR there is no difference between post-procedural SAPT versus DAPT for the risk of stroke or MI and DAPT may have a higher bleeding risk. Adequately powered RCTs are warranted to clarify the optimal antiplatelet treatment strategy following TAVR.

An extensive chronic aortic dissection presenting with acute embolic stroke.

Herein, we present a rare case of extensive chronic aortic dissection with extension to bilateral subclavian arteries, bilateral common carotid arteries, right internal carotid artery, bilateral proximal external iliac arteries and simultaneous presentation of acute embolic stroke and seizure. The rarity of this case presentation and the presence of neurological features necessitated a high index of clinical suspicion to reach the definitive diagnosis. This study also demonstrates a unique situation requiring correlation between chronic aortic dissection and multi-organ system dysfunction from chronic ischemia.

Listeria monocytogenes as a cause of spontaneous bacterial peritonitis: a rare entity.

Listeria is an uncommon cause of spontaneous bacterial peritonitis (SBP) in the United States. Listeria should be suspected as a cause of SBP when the patient has diphtheria-like organisms on ascitic/blood cultures, iron overload/hemochromatosis, exposure to farm animals, or poor response to empiric therapy within 48-72 h. Diagnosis of SBP is made if the ascitic fluid shows polymorphonuclear cell count >250 cells/mm(3) without an intra-abdominal source of infection. Ampicillin with or without an aminoglycoside is the treatment of choice. Trimethoprim-sulfamethoxazole is recommended for prophylaxis in patients with a previous episode of Listeria SBP.

Novel Development of Remitting Seronegative Symmetrical Synovitis with Pitting Edema (RS3PE) Syndrome due to Insulin Therapy.

PATIENT: Male, 67 FINAL DIAGNOSIS: Remitting seronegative symmetrical synovitis with pitting edema (RS3PE) syndrome Symptoms: Bilateral wrist swelling Medication: - Clinical Procedure: - Specialty: Rheumatology. OBJECTIVE: Unusual or unexpected effect of treatment. BACKGROUND: Remitting seronegative symmetrical synovitis with pitting edema (RS3PE) syndrome is a rare clinical entity characterized by the sudden onset of inflammatory arthritis and marked pitting edema on upper and lower extremities. RS3PE is considered a rheumatic process distinct from rheumatoid arthritis, which may occasionally represent a paraneoplastic syndrome. CASE REPORT: Herein, we describe a rare case of RS3PE associated with insulin therapy in a patient with no evidence of underlying malignancy. CONCLUSIONS: To the best of our knowledge, this is the first case report of RS3PE associated with insulin therapy. Physicians should look at the introduction of drugs as possible triggers for the development of RS3PE.

A case of disseminated recurrent retroperitoneal plasmacytoma with left obstructive hydronephrosis.

Retroperitoneal extramedullary plasmacytoma (EMP) is a rare condition that often poses a diagnostic challenge. This is mainly due to its unusual location and non-specific symptoms especially in its early stages. Retroperitoneal plasmacytoma with renal involvement is an extremely rare entity and to date, less than 25 cases have been reported in the literature. We describe a case of a 65-year-old woman with primary retroperitoneal plasmacytoma, confirmed by ultrasound-guided biopsy and histopathological examination, with unilateral left obstructive hydronephrosis and metastasis to the lungs. Our patient was started on chemotherapy to which she did not respond. Subsequently, she resorted to palliative measures. Our case highlights key aspects of clinical presentation, diagnosis and treatment options available for management of retroperitoneal plasmacytoma.

Meta-analysis of efficacy and safety of rivaroxaban compared with warfarin or dabigatran in patients undergoing catheter ablation for atrial fibrillation.

Several studies have been conducted to study the efficacy and safety of rivaroxaban in the atrial fibrillation periprocedural ablation period with similar rates of thromboembolism and major bleeding risks compared with warfarin or dabigatran. We sought to systematically review this evidence using pooled data from multiple studies. Studies comparing rivaroxaban with warfarin or dabigatran in patients undergoing catheter ablation for atrial fibrillation were identified through electronic literature searches of MEDLINE, EMBASE, clinicaltrials.gov, and the Cochrane library up to March 2014. Study-specific risk ratios (RRs) were calculated and combined using a random-effects model meta-analysis. In an analysis involving 3,575 patients, thromboembolism (composite of stroke, transient ischemic attack, and systemic and pulmonary emboli) occurred in 3 of 789 patients (0.4%) in the rivaroxaban group and 10 of 2,786 patients (0.4%) in the warfarin group (RR 0.71, 95% CI 0.26 to 1.96, I(2) = 0%, p = 0.51). Major hemorrhage occurred in 9 of 749 patients (1.2%) in the rivaroxaban group and 22 of 975 patients (2.3%) in the warfarin group (RR 0.49, 95% CI 0.24 to 1.02, I(2) = 0%, p = 0.06). Furthermore, direct efficacy and safety comparisons between rivaroxaban and dabigatran showed nonsignificant differences in rates of thromboembolism (0.5% vs 0.4%, respectively, RR 1.12, 95% CI 0.25 to 4.99, I(2) = 0%, p = 0.88) and major bleeding (1.0% vs 1.6%, respectively, RR = 0.71, 95% CI 0.16 to 3.15, I(2) = 22%, p = 0.66). In conclusion, our study suggests that patients treated with rivaroxaban during periprocedural catheter ablation have similar rates of thromboembolic events and major hemorrhage. Similar results were seen in direct comparisons between dabigatran and rivaroxaban.

Preventive PCI versus culprit lesion stenting during primary PCI in acute STEMI: a systematic review and meta-analysis.

AIM: The benefit of preventive percutaneous coronary intervention (PCI) in ST elevation myocardial infarction (STEMI) has been shown in randomised trials. However, all the randomised trials are underpowered to detect benefit in cardiac death. We aim to systematically review evidence on the cardiac mortality benefit of preventive PCI in patients presenting with acute STEMI in randomised patient populations. METHODS: PubMed, Scopus, Cochrane and clinicaltrials.gov databases were searched for studies published until 30 September 2013. The studies were limited to randomised clinical trials. Independent observers abstracted the data on outcomes, characteristics and qualities of studies included. Fixed effect model was employed for meta-analysis. Heterogeneity of studies included was analysed using I(2) statistics. RESULTS: In three randomised clinical trials published, involving 748 patients with acute STEMI and multivessel disease, 416 patients were randomised to preventive PCI and 332 to culprit-only PCI. Patients undergoing preventive PCI had significant lower risk of cardiovascular deaths (pooled OR 0.39, 95% CI 0.18 to 0.83, p=0.01, I(2)=0%), repeat revascularisation (pooled OR 0.28, 95% CI 0.18 to 0.44, p=0.00001, I(2)=0%) and non-fatal myocardial infarction (pooled OR 0.38, 95% CI 0.20 to 0.75, p=0.005, I(2)=0%) compared with culprit-only revascularisation. CONCLUSIONS: In patients presenting with acute STEMI and significant multivessel coronary artery disease, based on our data, preventive PCI is associated with lower risk of cardiovascular mortality compared with primary PCI of only the culprit artery. This finding needs to be confirmed in larger adequately powered randomised clinical trials.

Acute pancreatitis owing to very high triglyceride levels treated with insulin and heparin infusion.

Hypertriglyceridaemia is the third most common cause of acute pancreatitis in the USA. The treatment approach for hypertriglyceridaemia to date has largely been conservative including weight loss, exercise and avoidance of medications that raise triglyceride levels. This approach, however, is not practical in cases of acute pancreatitis due to severely elevated triglycerides. A small number of case reports have been published supporting the treatment of acute pancreatitis due to severely elevated triglyceride levels with insulin and heparin. We report a case of acute pancreatitis in a young woman due to a triglyceride level of 15,215 mg/dl who was successfully treated with insulin and heparin.

Cryptosporidial diarrhea in an immunocompetent adult: role of nitazoxanide.

Diarrhea caused by Cryptosporidium is most commonly seen in patients with HIV or AIDS or other immunocompromised conditions like diabetes mellitus, or patients on a high dose of steroids or immunosuppressants. The organism is a parasite that infects gastrointestinal epithelium, producing potential life-threatening diarrhea in people with AIDS but usually self-limiting diarrhea in immunocompetent hosts. Here in, we present an interesting case of persistent diarrhea caused by Cryptosporidium in an immunocompetent adult requiring treatment with nitazoxanide.

Recurrent case of ibuprofen-induced aseptic meningitis in mixed connective tissue disease.

Although relatively uncommon, the incidence of non-steroidal anti-inflammatory drug-induced aseptic meningitis appears to be increasing among patients with connective tissue disease and also among the healthy population. Ibuprofen is the most common culprit identified. We report a case of a 28-year-old woman with mixed connective tissue disease and recent intake of ibuprofen, presenting with a recurrent episode of ibuprofen-induced aseptic meningitis.

Papillary fibroelastoma of the aortic valve: An unusual cause of angina.

Papillary fibroelastoma of the aortic valve is an uncommon benign tumor of the heart that can present with embolic events. We report a case of 54-year-old lady with exertional chest pain and prior history of ST segment elevation myocardial infarction who was subsequently found to have a fibroelastoma of the aortic valve. The absence of angiographically significant coronary artery disease and resolution of anginal symptoms post-surgery in our patient points to the possibility of fibroelastoma causing these anginal symptoms. Although uncommon, fibroelastoma are being recognized more frequently with the help of transesophageal echocardiography. Hence, in the absence of significant coronary artery disease, we emphasize the importance of consideration of papillary fibroelastoma of the aortic valve as a cause of angina. We also discuss the key aspects of the fibroelastoma including presentation, diagnostic modalities and treatment options.

An unusual cause of recurrent chest pain in an adult woman: a case of recurrent stress-induced (Takotsubo) cardiomyopathy.

Recurrent Takotsubo cardiomyopathy is a relatively uncommon condition seen in patients with severe physical or emotional stress. We report a case of a 51-year-old woman who had recurrent Takotsubo cardiomyopathy with involvement of apical left ventricular (LV) segments, induced by intense emotional stress. On two occasions she presented with symptoms of acute coronary syndrome accompanied by LV regional wall motion abnormalities without a culprit coronary stenosis, and exhibited complete resolution of symptoms and restoration of normal LV wall motion.

Advanced adenocarcinoma in a colonic interposition segment.

Although rarely reported in the literature, adenomatous polyp and adenocarcinoma can occur as a late complication in an interposed colonic segment. We describe a case of a late stage adenocarcinoma in a colonic interposition performed for benign oesophageal stricture.

Laugh-induced seizure: a case report.

INTRODUCTION: A laugh-induced seizure is an unrecognized condition and to the best of our knowledge no case has been reported in the medical literature until now. We present an interesting and extremely rare case in which laughing generated the seizure activity that was recorded and confirmed by video electroencephalography. CASE PRESENTATION: A 43-year-old obese Caucasian man with history of bipolar disorder and chronic headache presented with multiple episodes of seizures, all induced by laughter while watching comedy shows. Each episode lasted approximately five seconds. In each instance, he started laughing, then his arms started shaking and he felt like 'his consciousness was being vacuumed away'. A physical examination revealed normal findings. He had been maintained on valproic acid for bipolar disorder and topiramate for his chronic headache, but this did not control his symptoms. His sleep-deprived electroencephalography and brain magnetic resonance imaging were normal except for an arachnoid cyst measuring 4.2 × 2.1cm in the anterior right middle cranial fossa. His video electroencephalography demonstrated laugh-induced seizure activities. He was then placed on carbamazepine. Following treatment, he had two episodes of mild staring but no frank seizures, and his seizures have remained well controlled on this regimen for more than a year. CONCLUSIONS: Laugh-induced seizure is a most unusual clinical entity without any previous case report. Confirmatory diagnosis can be made by video electroencephalography recording of seizure activities provoked by laughing. As in gelastic seizure without hypothalamic hamartoma, our case responded well to polytherapy with topiramate and carbamazepine on top of laugh-provocation avoidance. Further study is required to establish the standard treatment of this condition.

A case of Helicobactor pylori negative low-grade gastric MALT lymphoma in an elderly female, successfully treated with rituximab.

PATIENT: Female, 91 FINAL DIAGNOSIS: Low-grade gastric MALT lymphoma Symptoms: Recurrent epigastric and right upper quadrant dyscomfort Medication: Rituximab Clinical Procedure: esophagogastroduodenoscopy • gastric biopsy Specialty: Gastroenterology. OBJECTIVE: Unusual or unexpected effect of treatment. BACKGROUND: Mucosa associated lymphoid tissue (MALT) lymphoma can occur in any extranodal organ or tissue, stomach being the common site. Most of the gastric MALT lymphomas are related to chronic H. pylori infection. H. pylori negative gastric MALT lymphoma is relatively uncommon and usually treated with a short course of chemotherapy, radiotherapy or surgery. CASE REPORT: Herein, we present a case of an elderly female with H. pylori negative, low-grade gastric MALT lymphoma that was successfully treated with a short course of rituximab. CONCLUSIONS: This case report emphasizes that rituximab monotherapy can be an effective treatment for H. pylori negative low grade gastric MALT lymphoma especially in an elderly patient where surgery or radiotherapy may not be appropriate.