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Background Faecal microbial transplantation (FMT) is currently the most effective treatment of recurrent Clostridioides difficile infection (CDI). However, up to 20% of patients experience further recurrences after single FMT. The mechanisms that lead to FMT failure and its risk factors are poorly understood. Comorbidity is one of the risk factors of the failure of standard antibiotic therapy of recurrent CDI. It is not known if comorbidity is also associated with the risk of FMT failure. Methods We conducted a prospective observational cohort study in order to elucidate if comorbid status is associated with FMT failure. Patients with microbiologically proven recurrent CDI were recruited and underwent FMT via retention enema. Patients were followed up for 12 weeks after FMT for signs and symptoms of CDI recurrence. Single FMT failure was defined as recurrence of diarrhoea and a positive stool test for the presence of C. difficile antigen or toxin at any time point during the 12 weeks of follow-up. We assessed the association of single FMT failure with possible manageable and unmanageable risk factors. As a surrogate of comorbid status, we used Charlson Comorbidity Index (CCI) ≥ 7. Results A total of 60 patients that underwent single FMT (34 women, 26 men) were included in the study. Overall, 15 patients (25%) experienced single FMT failure. 24 patients (40%) had CCI ≥ 7, and 45.0% patients with CCI ≥ 7 experienced failure of single FMT. Patients who experienced single FMT failure had a significantly higher CCI and significantly lower albumin concentration as compared to patients who experienced single FMT success. There was no difference in age, C-reactive protein concentration, leukocyte count and time from FMT to first defecation. In multivariate analysis, CCI ≥ 7 was positively associated with the failure of single FMT. Analysis was controlled for sex, age, time from FMT to first defecation, concomitant PPI therapy, severe CDI, hospital-acquired infection and albumin concentration. Conclusions Comorbid status surrogated by CCI is positively associated with the failure of single FMT in the treatment of recurrent CDI.

Koncatinovocievna arteriova ischemicka choroba (periferne arteriove ochorenie dolných koncatin - PAO DK) je doležitou manifestaciou systemovej aterosklerozy a iných arteriových chorob cievneho systemu. Cim nižsi je clenkovo-ramenový tlakový index, tým vacsie je riziko vzniku zavažných akutnych instabilných organovaskularnych prihod (napr. akutneho infarktu myokardu, nahlej cievnej mozgovej prihody). V praci sa rozobera komplexna prevencia a liecba koncatinovocievnej arteriovej choroby. Angiologia/vaskularna medicina je najrýchlejsie sa rozvijajucou specializaciou internej mediciny.

Klebsiella pneumoniae is an extremely rare case of the Lemierre syndrome, which is characterized as septic thrombophlebitis of the jugular vein as a consequence of oropharyngeal infection. We present a unique case of Lemierre syndrome caused by Klebsiella pneumoniae, complicated by epidural abscess. The patient presented with fever, severe nuchal pain and stiffness and mild sore throat and headache. Computed tomography revealed a neck abscess localized dorsally to a left mandibular ramus and continuing caudally along the sternocleidomastoid muscle, thrombosis of the left internal jugular vein and fluid collection in the epidural space. Viewed under magnetic resonance imagining, the effusion had the character of an epidural abscess. Cultivation of oropharyngeal swab and blood cultures revealed Klebsiella pneumoniae. The neck abscess was surgically drained, and the patient was treated with a combination of parenteral antimicrobials until complete clinical and radiologic remission. This case highlights the importance of also covering the gram-negative facultative anaerobic rod spectrum in the empiric antimicrobial treatment of Lemierre syndrome. Keywords: Lemierre syndrome, Epidural abscess, Klebsiella pneumoniae

Objective Atherogenic dyslipidemia is a cardinal feature of obesity and the metabolic syndrome, which increases the risk of cardiovascular diseases. Many interventional studies, describing the influence of weight loss on cardiometabolic risks, are bariatric surgery studies. The aim of our study was to analyze the effect of intensive lifestyle changes on LDL- and HDL-cholesterol subfractions and cardiometabolic risk factors in obese subjects. Methods A group of 41 patients with obesity (11M/30F; 44.1 ± 12.4 years; BMI 30.2 ± 6.3 kg/m2) participated in an 8-week weight loss interventional program (NCT02325804), consisting of caloric intake reduced by 30% and physical activity (150 min/week). Insulin sensitivity was evaluated according to the homeostasis model assessment of insulin resistance (HOMA-IR) and physical fitness was measured using bicycle ergometry. Lipid subfractions were measured using the Lipoprint system (Quantimetrix Corp., CA, USA). Results After the intervention, body weight was reduced by 5.4 ± 4.5 kg, as well as body fat mass and waist circumference. Physical fitness improved, systolic and diastolic blood pressure as well as heart rate decreased after the intervention. Insulin sensitivity improved after the intervention. Total, LDL, HDL cholesterol, as well as triglycerides decreased after the intervention. Regarding the lipoprotein subfractions, LDL2 and small HDL subfractions decreased, while others have not changed. Conclusion Eight weeks of diet and physical activity intervention led to weight and fat mass loss and induced improvement of insulin sensitivity, as well as atheroprotective changes of lipid profile. However, the weight loss associated changes in cholesterol subfractions as cardiovascular risk biomarkers deserve further studies.

Invasive non-typhoidal Salmonella (NTS) infections are rare in developed countries but their incidence is increasing. One of the most severe complications of extraintestinal NTS infection is mycotic aneurysm. Its natural course is usually fatal and its treatment demands complex interdisciplinary management. We present a case of severe NTS sepsis complicated by mycotic aneurysm of the abdominal aorta and left internal iliac artery and obstructive pyelonephritis. Obstruction of the left ureter was caused by pressure from the left internal iliac artery aneurysm and surrounding edema. The patient presented with clinical symptoms of sepsis and pyelonephritis. Despite abdominal ultrasound and native computed tomography, the mycotic aneurysm eluded initial examination. It remained undiagnosed until the patient presented with recurrent symptoms after stopping 17 days of antimicrobial treatment and was finally revealed by magnetic resonance imaging and contrast computed tomography. The patient was successfully treated by ligation of the left internal iliac artery, partial extirpation of the aneurysm and prolonged parenteral antimicrobial treatment. This case raises concerns that mycotic aneurysm might be present in cases of obstructive pyelonephritis caused by NTS and its early recognition is vital for appropriate management.

Organovascular arterial ischemic diseases (cardiovascular, cerebrovascular, extremitovascular, renovascular, genitovascular, pulmovascular, mesenterovascular, dermovascular, oculovascular, otovascular, stomatovascular etc.) are an important manifestations of systemic atherosclerosis and other arterial diseases of vascular system (arteriolosclerosis/arteriolonecrosis; diabetic macroangiopathy; diabetic microangiopathy; Mönckeberg´s mediosclerosis/mediocalcinosis; arteritis - vasculitis; syndromes of arterial compression; fibromuscular dysplasia; cystic adventitial degeneration; arterial thrombosis; arterial embolism/thromboembolism; traumatic and posttraumatic arteriopathies; physical arteriopathies; chemical and toxic arteriopathies; iatrogenic arterial occlusions; dissection of aorta and of arteries; coiling; kinking; complicated arterial aneurysms; arteriovenous fistula, rare vascular diseases). Key clinical-etiology-anatomy-pathophysiology (CEAP) aspects of the mesenteriovascular arterial ischemic diseases are discussed in this article (project Vessels).