Manganese superoxide dismutase activity and incidence of hepatocellular carcinoma in patients with Child-Pugh class A liver cirrhosis: a 7-year follow-up study.

AIMS: To evaluate possible modifications in the manganese superoxide dismutase (MnSOD) activity during neoplastic transformation of a cirrhotic liver and to find out whether its assessment may have predictive value to identify cirrhotic patients at a higher risk of hepatocellular carcinoma (HCC). METHODS: Seventy-one consecutive subjects with Child-Pugh class A liver cirrhosis were recruited. At the time of enrolment, HCC was diagnosed in 20 cirrhotic patients. The 51 cirrhotic patients without HCC were followed up for the occurrence of tumour by 6-monthly screening for 7 years. During follow-up, 16 patients developed HCC. Seventy healthy subjects formed the control group. MnSOD activity was assayed spectrophotometrically. RESULTS: Serum MnSOD activity was significantly lower in 70 healthy subjects compared with 51 cirrhotic patients and 20 cirrhotic patients with HCC. Cirrhotic patients who developed HCC during follow-up showed significantly higher values of MnSOD activity than HCC-free patients. The best cut-off of MnSOD activity was 0.40 U/ml. At this cut-off, chi2 analysis revealed that MnSOD activity was significantly different between the HCC-free cirrhotic patients and cirrhotic patients who developed HCC. CONCLUSION: The present findings suggest that during neoplastic transformation of cirrhotic liver, an increase in MnSOD activity may occur already during the precancerous phase, making this enzyme a probable malignancy-associated parameter.     

The diagnostic yield of colonoscopy in hospitalized patients. An observational multicenter prospective study.

BackgroundColonoscopy demands a considerable amount of resources, and little is known about its diagnostic yield among inpatients.AimsTo assess indications, diagnostic yield and findings of colonoscopy for inpatients, and to identify risk factors for relevant findings and cancer.MethodsMulticentre, prospective, observational study including 12 hospitals. Consecutive adult inpatients undergoing colonoscopy were evaluated from February through November 2019.Results1,302 inpatients underwent colonoscopy. Diagnostic yield for relevant findings and cancer was 586 (45%) and 112 (8.6%), respectively. Adequate colon cleansing was achieved in 896 (68.8%) patients. Split-dose/same-day regimen was adopted in 847 (65%) patients. Factors associated to relevant findings were age ≥70 years (RR 1.32), male gender (RR 1.11), blood loss (RR 1.22) and adequate cleansing (RR 1.63). Age ≥70 years (RR 2.08), no previous colonoscopy (RR 2.69) and split-dose/same-day regimen (RR 1.59) significantly increased cancer detection. Implementing adequate cleansing and split-dose/same-day regimen in all patients would increase the diagnostic yield for any relevant findings and cancer from 43% to 70% and from 6% to 10%, respectively.ConclusionRelevant colorectal diseases and cancer were frequent among inpatients. Factors associated with detection of relevant findings were identified. Adequate colon cleansing and split-dose/same-day regimen significantly increased colonoscopy diagnostic yield.     

The Development of a Multiorgan Ex Vivo Perfused Model: Results With the Porcine Liver‐Kidney Circuit Over 24 Hours

We already developed an ex vivo liver‐kidney model perfused for 6 h in which the kidney acted as a homeostatic organ to improve the circuit milieu compared to liver alone. In the current study, we extended the multiorgan perfusions to 24 h to evaluate the results and eventual pitfalls manifesting with longer durations. Five livers and kidneys were harvested from female pigs and perfused over 24 h. The extracorporeal circuit included a centrifugal pump, heat exchanger, and oxygenator. The primary end point of the study was the evaluation of the organ functions as gathered from biochemical and acid‐base parameters. In the combined liver‐kidney circuit, the organs survived and maintained an acceptable homeostasis for different lengths of time, longer for the liver (up to 19–23 h of perfusions) than the kidney (9–13 h of perfusions). Furthermore, glucose and creatinine values decreased significantly over time (from the 5th and 9th hour of perfusion onward). The addition of a kidney to the perfusion circuit improved the biochemical environment by removing excess products from ongoing metabolic processes. The consequence is a more physiological milieu that could improve results from future experimental studies. However, it is likely that long perfusions require some nutritional support over the hours to maintain the organ's vitality and functionality throughout the experiments.     

A safety evaluation of budesonide MMX for the treatment of ulcerative colitis

Introduction: Budesonide belongs to low-bioavailability steroids class. A novel oral formulation of budesonide, which uses the Multi-Matrix System (MMX) for delivering drugs to the colon, is now available as a possible treatment of ulcerative colitis patients intolerant or not-responding to first-line therapy with 5-ASA.

Areas covered: in this review we present information about the development and the use of budesonide MMX and we provide data about its mechanism of action as well as, pharmacodynamics and pharmacokynetics. Moreover, we present the available literature data about the efficacy and, mainly, the safety of budesonide-MMX.

Expert opinion: budesonide-MMX is a new therapeutic option in mild-to-moderate UC patients. Its good safety profile in clinical trials undoubtedly represents a strength for a possible wide use in clinical practice, mainly if it will be confirmed by post-marketing data. Other indications, such as treatment of colonic Crohn’s disease, could theoretically be considered, if sustained by reliable scientific data.     

Routine versus selective histologic analysis of gallbladder specimens for the detection of incidental gallbladder cancers. A retrospective review over 9 years of activity with a special focus on patients' age

Background

Incidental gallbladder cancer (IGC) is an infrequent possibility in patients undergoing cholecystectomies. Routine histologic examination of all gallbladder specimens is the current approach to detect this disease. Our study presents the influence of age to perform a selective histologic analysis.

Methods

A retrospective review was conducted of all gallbladder specimens during the last 9 years in our hospital. The medical notes were retrieved for cases of IGC or dysplasia and perioperative data were collected.

Results

A total of 3,330 cholecystectomies were conducted over the study period, 3,041 for gallstone disease. Twelve patients were found with dysplasia and 13 patients with IGC, all of them occurred in gallbladders removed for gallstone diseases. There were 18 men with a median age of 65 years (range 18 to 85). Median age for cancer patients was 70 years (range 51 to 85) and 54 years for dysplasia (range 18 to 75). No patient below the age of 51 years (n = 1,464) experienced IGCs.

Conclusion

Age should be considered as an additional factor for a selective approach to the histologic analysis of all gallbladder specimens following cholecystectomies.     

Intracardiac Versus Transesophageal Echocardiographic Guidance for Left Atrial Appendage Occlusion: The LAAO Italian Multicenter Registry

Objectives

This study sought to evaluate the feasibility, safety, and efficacy of intracardiac echocardiography (ICE)–guided versus transesophageal echocardiography (TEE)–guided left atrial appendage occlusion (LAAO) by the use of Amplatzer Cardiac Plug or Amulet devices included in a large Italian registry.

Vaginal reconstructive surgery for severe pelvic organ prolapses: a 'uterine-sparing' technique using polypropylene prostheses

OBJECTIVE: The Ulmsten's "Integral Theory" for pelvic floor dysfunctions is based on the need to reinforce fascias and ligaments with prostheses to obtain a reconstitution of the pelvic floor's anatomy. In September 2004 we developed a "uterine-sparing" surgical technique to correct such pathologies and in this paper we present results obtained. Primary outcome was to evaluate the technique's efficacy, secondary outcomes the resolution of stress urinary incontinence, postoperative pain (VAS scale), safety and complications. STUDY DESIGN: This prospective study included patients affected by stage 3 and 4 uterine-vaginal prolapse who wished to conserve their uterus. Those with (1) minor degrees of severity, (2) unfit for surgery, (3) with a clear indication to hysterectomy (i.e. endometrial cancer), (4) with an elevated operative risk (American Society of Anaesthesiologists-ASA score III and IV), (5) previous vaginal surgeries and (6) with moderate/severe defecation problems were excluded. The technique consisted in a sacrospinous colposuspension with polypropylene mesh. The pelvic status was classified according to the international Pelvic Organ Prolapse staging system (POP-Q). Postoperative pain was scored with the VAS Scale. All patients were given the King's Health questionnaire, the Pelvic Organ Prolapse/Urinary Incontinence Sexual Questionnaire (PISQ-12) and the Wexner questionnaire. RESULTS: From September 2004 to November 2006 we treated 80 patients. Polypropylene prostheses (Gynemesh-Soft PS, 10cmx15cm - GyneMesh, Gynecare Ethicon - Somerville, NJ, USA) were used to reconstruct the pubo-cervix or the recto-vaginal fascia. We performed an anterior-central vaginal reconstruction in 35 (43.8%) patients, central-posterior in 25 (31%) and total reconstruction in 20 (25%). The median follow-up was 21 months (range 18-26). The severe pelvic prolapse, evaluated with the POP-Q System, was completely treated in all the patients and no recurrences were observed. The urodynamic examination showed a complete resolution of the stress urinary incontinence in 10 patients (83%). Sexual activities improved in all patients. We recorded three vaginal erosions and one patient complained of a postoperative dyspareunia. CONCLUSIONS: This pilot study suggests that our technique is safe and effective and can efficiently repair the pelvic organs prolapse, without undergoing hysterectomy and with a low rate of vaginal erosions.