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81.
Clinicopathological differences between familial colorectal cancer type X and sporadic cancer in an isolated area of spain
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82.
Davide Carino MD Alejandro Fernández-Cisneros MD Marta Hernández-Meneses MD Elena Sandoval MD FECTS Jaume Llopis MD PhD Carlos Falces MD PhD José M. Miró MD PhD Eduard Quintana MD PhD FECTS Grup d'Estudi d'Endocarditis Infecciosa de l'Hospital Clínic de Barcelona 《Journal of cardiac surgery》2020,35(11):3034-3040
83.
84.
Bibiana Escobar Pilar Taurá Graciela Martínez-Palli Constatino Fondevila Jaume Balust Joan Beltrán Javier Fernández Juan Carlos García-Pagán Juan Carlos García-Valdecasas 《World journal of surgery》2014,38(4):927-935
Introduction
In patients with advanced cirrhosis, stressful stimuli may reveal a silent reduced cardiac performance. During liver transplantation (LT), graft reperfusion strongly stresses the heart and may unmask latent myocardial dysfunction.Aim
The objective of this study was to assess heart response to acutely increased preload after liver graft reperfusion and correlate this response with preoperative data and outcome.Methods
Preoperative clinical, echocardiographic, and hemodynamic data, and patient outcome were retrospectively recorded for 235 liver recipients who had no known cardiac disease. Myocardial dysfunction was defined as less than 10 % increase of stroke volume after graft reperfusion (non-responder).Results
We found 84 (35.7 %) non-responder patients. The non-responders showed higher Model for end-stage liver disease scores (p = 0.046), left atrial diameter (LAD) (p = 0.040), hepatic vein pressure gradient (p = 0.055), and hyperdynamic state than responders. The percentages of patients with hyponatremia (p = 0.048) and alcohol etiology (p = 0.025) were also higher among non-responders. Independent predictors of inadequate cardiac response in the multivariate analysis were low preoperative systemic vascular resistance (SVRI) [odds ratio (OR) 3.09, 95 % CI 1.15–4.82; p = 0.027] and enlargement of LAD (OR 2.08, 95 % CI 1.49–2.74; p = 0.044). Non-response was associated with higher rates of early cardiovascular events [hazard ratio (HR) 2.84, 95 % CI 1.09–4.22; p = 0.039] and higher length of intensive care unit stay (p = 0.038). No differences were found in 1-year survival rates.Conclusions
Latent cardiac dysfunction among LT recipients, considered to be abnormal stroke volume response to unclamping of portal vein, is very prevalent. SVRI and LAD were independent predictors of inadequate responses. This condition deserves special attention since it may aggravate the early postoperative course of LT. 相似文献85.
David F. Schneider MD MS Philip E. Sonderman BA Michaela F. Jones BS Kristin A. Ojomo MD Herbert Chen MD Juan C. Jaume MD Diane F. Elson MD Scott B. Perlman MD Rebecca S. Sippel MD 《Annals of surgical oncology》2014,21(13):4174-4180
Background
Persistent or recurrent hyperthyroidism after treatment with radioactive iodine (RAI) is common and many patiedlxnts require either additional doses or surgery before they are cured. The purpose of this study was to identify patterns and predictors of failure of RAI in patients with hyperthyroidism.Methods
We conducted a retrospective review of patients treated with RAI from 2007 to 2010. Failure of RAI was defined as receipt of additional dose(s) and/or total thyroidectomy. Using a Cox proportional hazards model, we conducted univariate analysis to identify factors associated with failure of RAI. A final multivariate model was then constructed with significant (p < 0.05) variables from the univariate analysis.Results
Of the 325 patients analyzed, 74 patients (22.8 %) failed initial RAI treatment, 53 (71.6 %) received additional RAI, 13 (17.6 %) received additional RAI followed by surgery, and the remaining 8 (10.8 %) were cured after thyroidectomy. The percentage of patients who failed decreased in a stepwise fashion as RAI dose increased. Similarly, the incidence of failure increased as the presenting T3 level increased. Sensitivity analysis revealed that RAI doses <12.5 mCi were associated with failure while initial T3 and free T4 levels of at least 4.5 pg/mL and 2.3 ng/dL, respectively, were associated with failure. In the final multivariate analysis, higher T4 (hazard ratio [HR] 1.13; 95 % confidence interval [CI] 1.02–1.26; p = 0.02) and methimazole treatment (HR 2.55; 95 % CI 1.22–5.33; p = 0.01) were associated with failure.Conclusions
Laboratory values at presentation can predict which patients with hyperthyroidism are at risk for failing RAI treatment. Higher doses of RAI or surgical referral may prevent the need for repeat RAI in selected patients. 相似文献86.
Mechanical compatibility with the human dentin is a considerable issue when fabricating dental fiber posts. To this purpose, this study introduces a new method of fabricating compatible dental posts using braiding techniques of thermoplastic fibers (matrix) with glass fibers (reinforcement). Fifty fiber-reinforced composite (FRC) posts of thermoplastic yarns polypropylene (PP) braided with continuous filaments glass fibers (GFs) for reinforcement, varying in fiber volume fraction (FVF), and core types are fabricated and tested. Posts are performed using a braiding machine, and braids are placed in an aluminum mold. The filled mold is playced inside an oven at the melting temperature of the polypropylene to produce the final post’s shape. An ultrasonic test is conducted to measure the shear modulus and Young’s modulus of FRC post specimens by measuring the velocities of both the P-wave and S-wave. In order to ensure the accuracy of the measurements, each sample is measured three times, and then the means and standard deviations of each sample are calculated before analyzing the test results using the means of two steps, namely, clustering and comparing the P and R² values of each cluster, which revealed that FVF, fiber mass, and core type of the specimen had a significant effect on the resulted Young’s and shear modulus. The results indicate that the proposed method can fabricate competitive dental posts with regard to different fabricating variables. The samples show Young’s modulus ranges of from 10.08 GPa to 31.83 GPa. The following tested hypothesis is supported: the braiding technique of thermoplastic fibers with glass fibers will improve the mechanical compatibility of the resulting posts (ex vivo). 相似文献
87.
Jani Rankinen Petri Haataja LeoPekka Lyytikinen Heini Huhtala Terho Lehtimki Mika Khnen Markku Eskola Andrs Ricardo PrezRiera Antti Jula Harri Rissanen Kjell Nikus Jussi Hernesniemi 《Annals of noninvasive electrocardiology》2021,26(1)
BackgroundPrevious population studies have presented conflicting results regarding the prognostic impact of intraventricular conduction delays (IVCD).MethodsWe studied long‐term prognostic impact and the association with comorbidities of eight IVCDs in a random sample of 6,299 Finnish subjects (2,857 men and 3,442 women, mean age 52.8, SD 14.9 years) aged 30 or over who participated in the health examination including 12‐lead ECG. For left bundle branch block (LBBB) and non‐specific IVCD (NSIVCD), two different definitions were used.ResultsDuring 16.5 years’ follow‐up, 1,309 of the 6,299 subjects (20.8%) died and of these 655 (10.4%) were cardiovascular (CV) deaths. After controlling for known clinical risk factors, the hazard ratio for CV death, compared with individuals without IVCD, was 1.55 for the Minnesota definition of LBBB (95% confidence interval 1.04–2.31, p = .032) and 1.27 (95% confidence interval 0.80–2.02, p = .308) for the Strauss’ definition of LBBB. Subjects with NSIVCD were associated with twofold to threefold increase in CV mortality depending on the definition. While right bundle branch block, left anterior fascicular block and incomplete bundle branch blocks were associated with seemingly higher mortality, this was no longer the case after adjustment for age and sex. The presence of R‐R’ pattern was not associated with any adverse outcome.ConclusionsIn a population study with long‐term follow‐up, NSIVCD and Minnesota definition of LBBB were independently associated with CV mortality. Other IVCDs had no significant impact on prognosis. The prognostic impact of LBBB and NSIVCD was affected by the definition of the conduction disorder. 相似文献
88.
Christine Yang Jaume Balsells Hong D. Chu Jason M. Cox Alejandro Crespo Xiuying Ma Lisa Contino Patricia Brown Sheng Gao Beata Zamlynny Judyann Wiltsie Joseph Clemas JeanMarie Lisnock Jack Gibson Gaochao Zhou Margarita Garcia-Calvo Thomas J. Bateman Vincent Tong Ling Xu Martin Crook Peter Sinclair Hong C. Shen 《ACS medicinal chemistry letters》2015,6(4):461-465
89.
Anna Oliveras Lluís Molina Albert Goday Laia Sans Marta Riera Susana Vazquez David Benaiges Ana Marina Granados Jos Manuel Ramon Julio Pascual 《Journal of clinical hypertension (Greenwich, Conn.)》2021,23(1):181-192
Echocardiographic alterations have been described in obesity, but their modifications after bariatric surgery (BS) and mechanisms are little known, mostly in normotensive patients. We aimed to analyze cardiac changes 1 year post‐BS and to explore possible mechanisms. A cohort of patients with severe obesity (58% normotensives) were prospectively recruited and examined before surgery and after 12 months. Clinical and echocardiographic data, 24 h BP, renin‐angiotensin‐aldosterone system (RAAS) components, cytokines, and inflammatory markers were analyzed at these two time points. Overall reduction in body weight was mean (IQR) = 30.0% (25.9–33.8). There were statistically significant decreases in left ventricle mass index2.7(LVMI)2.7, septum thickness (ST), posterior wall thickness (PWT), relative wall thickness (RWT), and E/e’, both in the whole cohort and in patients without RAAS blockers (p ≤ .04 for all). Plasma renin activity (PRA) decreased from (median, IQR) = 0.8 (0.3;1.35) to 0.4 (0.2;0.93) ng/ml/h, plasma aldosterone from 92 (58.6;126) to 68.1 (56.2;83.4) ng/dl, and angiotensin‐converting enzyme (ACE)‐2 activity from 7.7 (5.7;11.8) to 6.8 (5.3;11.2) RFU/µl/h, p < .05. The body weight loss correlated with a decrease in both 24 h SBP and 24 h DBP (Pearson''s coefficient 0.353, p = .022 and 0.384, p = .012, respectively). Variation (Δ) of body weight correlated with ΔE/e’ (Pearson''s coeff. 0.414, p = .008) and with Δ lateral e’ (Pearson''s coeff. = −0.363, p = .018). Generalized linear models showed that ΔPRA was an independent variable for the final (12‐months post‐BS) LVMI2.7 (p = .028). No other changes in cardiac parameters correlated with ΔBP. In addition to the respective baseline value, final values of PWT and RWT were dependent on 12‐month Δ of PRA, ACE, and ACE/ACE2 (p < .03 for all). We conclude that there are cardiac changes post‐BS in patients with severe obesity, normotensives included. Structural changes appear to be related to modifications in the renin‐angiotensin axis. 相似文献
90.
Maria Isabel Fullana Barcel Javier Asensio Rodriguez Francisca Artigues Serra Adrian Ferre Beltran Pilar Salva Dagosto Maria Almodovar Garcia Maria del Carmen Lopez Bilbao Pilar Sanchis Corts Jorge Reina Prieto Melchor Riera Jaume 《Influenza and other respiratory viruses》2021,15(3):352
BackgroundInformation on the characteristics of patients with nosocomial influenza and associated complications is scarce. This study compared epidemiological and clinical characteristics of patients admitted with hospital‐acquired influenza (HAI) to those with community‐acquired influenza (CAI) and analyzed risk factors associated with complications.MethodsThis retrospective, observational study included all adult patients with confirmed influenza virus infection admitted to Son Espases University Hospital during the influenza season in Spain (October to May) from 2012‐2013 to 2015‐2016. Symptom onset before admission was included as CAI, and 2 days after admission or within 48 hours after previous discharge were considered as HAI.ResultsOverall, 666 patients with laboratory‐confirmed influenza were included; 590 (88.6%) and 76 (11.4%) had CAI and HAI, respectively. Baseline characteristics and vaccination rates were similar in both groups. Patients with HAI had significantly fewer symptoms, less radiological alterations, and earlier microbiological diagnosis than those with CAI. Eighty‐five (14.4%) and 20 (27.6%) CAI and HAI patients, respectively, experienced at least one complication, including septic shock, admission to the intensive care unit, mechanical ventilation or evolution to death (any one, P = .003). Univariate and multivariate binary logistic regression was performed to assess independent risk factors associated with the occurrence of complications: nosocomial infection, diabetes, oseltamivir treatment, having received no vaccination, microbiological delay, dyspnea, and the state of confusion were the most important significant factors.ConclusionsOur study shows the need to implement microbiological diagnostic measures in the first 48 hours to reduce HAI frequency and associated complications. 相似文献