Cholangio‐venous reflux of biliary contents through paracellular pathways between hepatocytes in patients with acute cholangitis

Author(s):  
Tadahiro Takada ◽  
Hajime Takikawa ◽  
Norimasa Sawada ◽  
Ryota Higuchi ◽  
Yukiko Nagamachi ◽  
...  
1995 ◽  
Vol 73 (04) ◽  
pp. 592-596 ◽  
Author(s):  
Sabina Villalta ◽  
Paolo Prandoni ◽  
Alberto Cogo ◽  
Paola Bagatella ◽  
Andrea Piccioli ◽  
...  

SummaryBackground. Despite the availability of several diagnostic methods for the detection of deep-vein thrombosis (DVT), the identification of previous episodes of DVT remains a diagnostic challenge.Study objective. To assess the reliability of a combination of a standardized clinical score with three non-invasive tests: compression ultrasonography (CUS), Doppler ultrasound (DUS), and photoplethysmography (PPG), in determining the presence or the absence of previous proximal DVT.Methods. One hundred consecutive unselected outpatients were identified, who had undergone contrast venography six to nine years previously because of the clinical suspicion of DVT (confirmed in 43). They were blindly reinvestigated by a panel of trained operators unaware of venography results. They underwent a clinical evaluation of the lower limb, by applying a standardized score to five symptoms and six signs (grading each item from 0 to 3); a PPG test to determine the venous refilling time; a DUS test to determine the venous reflux separately in the common femoral and the popliteal vein; and a CUS test to determine vein compressibility in the same regions.Results. An abnormal CUS test and/or the demonstration of venous reflux in the popliteal region and/or a high clinical score (≥ 8) identified twenty-four of the 43 (56%) DVT + patients with a specificity of 89%. The combination of normal CUS with the absence of venous reflux in both the common femoral and popliteal vein and a low clinical score excluded previous thrombosis in 45 (79%) of the 57 DVT- patients (negative predictive value, 78%). Abnormal venous reflux in the isolated common femoral vein did not reliably predict the presence or absence of previous DVT. However, this occurred in only 13 (13%) patients. The PPG determination of venous refilling time did not improve the results obtained with the other tests.Conclusions. The combination of a standardized clinical evaluation with the results of CUS and DUS can reliably diagnose or exclude previous proximal-vein thrombosis in almost 90% of patients with previous episodes of suspected DVT.


2013 ◽  
Vol 67 (2) ◽  
pp. 111-121 ◽  
Author(s):  
Andreas Weber ◽  
Jochen Schneider ◽  
Stefan Wagenpfeil ◽  
Philipp Winkle ◽  
Julia Riedel ◽  
...  

Author(s):  
Wei On ◽  
Christopher Watters ◽  
Laura Dwyer ◽  
Stephen Hood ◽  
Rizwan Saleem ◽  
...  
Keyword(s):  

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Syeda Sahra ◽  
Abdullah Jahangir ◽  
Neville Mobarakai ◽  
Allison Glaser ◽  
Ahmad Jahangir ◽  
...  

Abstract Introduction Cronobacter sakazakii is an opportunistic Gram-negative, rod-shaped bacterium which may be a causative agent of meningitis in premature infants and enterocolitis and bacteremia in neonates and adults. While there have been multiple cases of C. sakazakii infections, there have been no acute cholangitis cases reported in humans. Case presentation An 81-year-old male with a past medical history of basal cell carcinoma, alcoholic liver cirrhosis, transjugular intrahepatic portosystemic shunt procedure, complicated by staphylococcus bacteremia, pituitary tumor, glaucoma, and hypothyroidism presented to the emergency room with the complaint of diffuse and generalized 10/10 abdominal pain of 1 day’s duration. There was a concern for pancreatitis, acute cholangitis, and possible cholecystitis, and the patient underwent a percutaneous cholecystostomy tube placement. Blood cultures from admission and biliary fluid cultures both grew C. sakazakii. The patient was treated with a carbapenem and clinically improved. Conclusions The case study described a patient with multiple medical comorbidities that presented with C. sakazakii bacteremia and cholangitis. While this bacterium has been implicated in other infections, we believe this is the first time the bacteria is being documented to have caused acute cholangitis.


2021 ◽  
pp. 1-9
Author(s):  
Ramkumar Mohan ◽  
Stefanie Wei Lynn Goh ◽  
Guan Wei Tan ◽  
Yen Pin Tan ◽  
Sameer P. Junnarkar ◽  
...  

<b><i>Background:</i></b> Acute cholangitis (AC) is a common emergency with a significant mortality risk. The Tokyo Guidelines (TG) provide recommendations for diagnosis, severity stratification, and management of AC. However, validation of the TG remains poor. This study aims to validate TG07, TG13, and TG18 criteria and identify predictors of in-hospital mortality in patients with AC. <b><i>Methods:</i></b> This is a retrospective audit of patients with a discharge diagnosis of AC in the year 2016. Demographic, clinical, investigation, management and mortality data were documented. We performed a multinomial logistic regression analysis with stepwise variable selection to identify severity predictors for in-hospital mortality. <b><i>Results:</i></b> Two hundred sixty-two patients with a median age of 75.9 years (IQR 64.8–82.8) years were included for analysis. TG13/TG18 diagnostic criteria were more sensitive than TG07 diagnostic criteria (85.1 vs. 75.2%; <i>p</i> &#x3c; 0.006). The majority of the patients (<i>n</i> = 178; 67.9%) presented with abdominal pain, pyrexia (<i>n</i> = 156; 59.5%), and vomiting (<i>n</i> = 123; 46.9%). Blood cultures were positive in 95 (36.3%) patients, and 79 (83.2%) patients had monomicrobial growth. The 30-day, 90-day, and in-hospital mortality numbers were 3 (1.1%), 11 (4.2%), and 15 (5.7%), respectively. In multivariate analysis, type 2 diabetes mellitus (OR = 12.531; 95% CI 0.354–116.015; <i>p</i> = 0.026), systolic blood pressure &#x3c;100 mm Hg (OR = 10.108; 95% CI 1.094–93.395; <i>p</i> = 0.041), Glasgow coma score &#x3c;15 (OR = 38.16; 95% CI 1.804–807.191; <i>p</i> = 0.019), and malignancy (OR = 14.135; 95% CI 1.017–196.394; <i>p</i> = 0.049) predicted in-hospital mortality. <b><i>Conclusion:</i></b> TG13/18 diagnostic criteria are more sensitive than TG07 diagnostic criteria. Type 2 diabetes mellitus, systolic blood pressure &#x3c;100 mm Hg, Glasgow coma score &#x3c;15, and malignant etiology predict in-hospital mortality in patients with AC. These predictors could be considered in acute stratification and treatment of patients with AC.


Author(s):  
Tetsushi Azami ◽  
Yuichi Takano ◽  
Takahiro Kobayashi ◽  
Fumitaka Niiya ◽  
Naotaka Maruoka ◽  
...  
Keyword(s):  

2021 ◽  
Vol 93 (6) ◽  
pp. AB9-AB10
Author(s):  
Hemant Goyal ◽  
Abhilash Perisetti ◽  
Mahesh Gajendran ◽  
Gregory Enders ◽  
Jiannis Anastasiou ◽  
...  

Vascular ◽  
2021 ◽  
pp. 170853812110128
Author(s):  
Dominic Mühlberger ◽  
Anne-Katrin Zumholz ◽  
Erich Brenner ◽  
Achim Mumme ◽  
Markus Stücker ◽  
...  

Objectives Cellular senescence could play a role in the development of venous disease. Superficial venous reflux at the saphenofemoral junction is a common finding in patients with primary varicose veins. Furthermore, reflux in this essential area is associated with higher clinical stages of the disease and recurrent varicose veins. Therefore, this pilot study aimed to investigate cellular senescence in the immediate area of the saphenofemoral junction in patients with healthy veins, primary varicose veins and additionally in patients with recurrent varicose veins due to a left venous stump. Methods We analyzed vein specimens of the great saphenous vein immediately at the saphenofemoral junction. Healthy veins were collected from patients who underwent arterial bypass reconstructions. Samples with superficial venous reflux derived from patients who received high ligation and stripping or redo-surgery at the groin, respectively. Sections were stained for p53, p21, and p16 as markers for cellular senescence and Ki67 as a proliferation marker. Results A total of 30 samples were examined (10 healthy, 10 primary varicose, and 10 recurrent varicose veins). We detected 2.10% p53+ nuclei in the healthy vein group, 3.12% in the primary varicose vein group and 1.53% in the recurrent varicose vein group, respectively. These differences were statistically significant ( p = 0.021). In the healthy vein group, we found 0.43% p16+ nuclei. In the primary varicose vein group, we found 0.34% p16+ nuclei, and in the recurrent varicose vein group, we found 0.74% p16+ nuclei. At the p < 0.05 level, the three groups tended to be significant without reaching statistical significance ( p = 0.085). There was no difference in respect of p21 and Ki67. Conclusion We found significantly higher expression rates of p53 in primary varicose veins at the saphenofemoral junction than in healthy veins. p16 expression tended to be increased in the recurrent varicose vein group. These preliminary findings indicate that cellular senescence may have an impact in the development of varicose veins or recurrence. Further studies addressing this issue are necessary.


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