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Fojanesi M, Gallo M, Russo F, Valentini M, Spaziani M, Radicioni A, Bersani F, Biondi M. Exploring the Correlation Between Perceived Attachment Security and Levels of GH Hormone in a Sample of Children with Non-organic Failure to Thrive: Preliminary Findings. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.2249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
IntroductionShort stature caused by growth hormone (GH) deficiency is one of the causes of the “Failure to Thrive” (FTT) condition. In absence of clear organic causes, several different psychosocial conditions may play a role in explaining the FTT phenotype. Advances in developmental psychology have highlighted the role of emotions and caregiving behaviors in the organization of child's personality and psychobiology, with the mother–son attachment bond being considered a fundamental developmental experience. The objective of the present preliminary study was to assess whether there are significant correlations between attachment styles and GH levels in a sample of subjects with non-organic FTT.MethodsWe enrolled 27 children (mean age: 9.49 ± 2.63) with non-organic FTT. Perceived attachment security was assessed through the Security Scale (SS) and its subscales focused on maternal and paternal security. Pearson partial correlation was used to test associations between GH levels and SS measures adjusting for confounding factors (i.e. age, gender and BMI).ResultsAcross all subjects, GH was significantly positively correlated with general security (r = 0.425; P = 0.038) and maternal security (SSM) (r = –0.451; P = 0.027) and not significantly correlated with paternal security (SSP) (r = 0.237; P = 0.264).DiscussionThese findings preliminarily suggest that perceived attachment security may play a role in the etiopathogenesis of non-organic GH deficiencies and add to the accumulating evidence that attachment styles are associated with specific psychoendocrine underpinnings.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Rago R, Gallo M, Dal Lago A, Licata E, Paciotti G, Amodei M, Meneghini C, Fabiani C, Dani G, Liberanome C, Antonaci D, Corno R, Miriello D, Giuffrida G, Giammusso B. Controlled, prospective, observational study on the efficiency and tolerability of a combination of potential Nrf2-inducing antioxidants and micronutrients as pre-treatment for ICSI in dyspermic patients with previous failure. EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2017; 21:1645-1652. [PMID: 28429340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To evaluate the efficiency of pre-treatment in dyspermic males in IVF couples with a combination of micronutrients, for the purpose of improving the fertilization rate, the implantation rate and the outcome of the pregnancy. PATIENTS AND METHODS This controlled prospective clinical study was performed in two medically assisted reproduction centers. 59 males with mild oligo-astheno-teratospermia (OAT) were admitted to the study. All of them had a history of previous in vitro fertilization (IVF) attempts with female partners aged < 40 diagnosed having tubal or idiopathic infertility. The subjects upon enrolment underwent a semen test and afterward were treated with alpha lipoic acid and glutathione (Fertiplus SOD®, Idi-Pharma, Catania, Italy) for 4 weeks (short-term). The primary endpoints that were evaluated are the following: fertilization rate (mean fertilization), implantation rate and pregnancy rate. RESULTS At the end of this study all the males (mean age 39.5 ± 5.1) reported in not having any side effects during the administration of Fertiplus. Their female partners (mean age 34.9 ± 4.5) underwent IVF using the ICSI technique. The number of oocytes retrieved and inseminated was not statistically different in comparison to previous attempts, but with the same number of oocytes treated, the fertilization rate per couple demonstrated statistically significant increase (p<0.001). We did not observe a percentage increase in evolutionary embryos, but we noticed an improvement in embryo quality per individual couple (p<0.001), associated with a net increase in the implantation rate per couple (p<0.001) in terms of clinical pregnancy. The estimated miscarriage risk after treatment was five times lower (p<0.001). CONCLUSIONS Short-term treatment with micronutrients in dyspermic subjects can improve the reproductive outcome of the IVF procedure.
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Zoppoli G, Brown D, Caffa I, Garuti A, Piras D, Gallo M, Isnaldi E, Nencioni A, Ballestrero A. Abstract P3-07-17: Squalene epoxidase is a potential metabolic oncogene by amplification with clinical implications in breast carcinoma: An in silico pan-cancer study with i
n vitro evidence. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p3-07-17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
This abstract was withdrawn by the authors.
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Fontanesi L, Schiavo G, Galimberti G, Bovo S, Russo V, Gallo M, Buttazzoni L. A genome-wide association study for a proxy of intermuscular fat level in the Italian Large White breed identifies genomic regions affecting an important quality parameter for dry-cured hams. Anim Genet 2017; 48:459-465. [DOI: 10.1111/age.12542] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/21/2016] [Indexed: 12/26/2022]
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Gallo M, Demertzis S, Gerosa G, Ferrari E. Leaflet Hypomobility After Transcatheter Aortic Valve Replacement: Thrombosis or Mechanical Factors? A Possible Pathophysiological Pattern. THE JOURNAL OF HEART VALVE DISEASE 2017; 26:9-11. [PMID: 28544825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Transcatheter heart valve replacement is an emerging technology in the treatment of valvular disease. During recent years, the opportunity to replace a heart valve via percutaneous access or via a miniinvasive access without the use of cardiopulmonary bypass has revolutionized the approach to this pathology. The different designs of transcatheter valves have also altered the spectrum of possible complications, with the unexpected occurrence of leaflet hypomobility after valve deployment. Here, the pathophysiological pattern of this complication is categorized, and an analysis provided of recently reported clinical evidences.
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Harborne AR, Selwyn JD, Lawson JM, Gallo M. Environmental drivers of diurnal visits by transient predatory fishes to Caribbean patch reefs. JOURNAL OF FISH BIOLOGY 2017; 90:265-282. [PMID: 27781260 DOI: 10.1111/jfb.13180] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 09/07/2016] [Indexed: 06/06/2023]
Abstract
Video cameras recorded the diurnal visitation rates of transient (large home range) piscivorous fishes to coral patch reefs in The Bahamas and identified 11 species. Visits by bar jack Caranx ruber, mutton snapper Lutjanus analis, yellowtail snapper Ocyurus chrysurus, barracuda Sphyraena barracuda and cero Scomberomorus regalis were sufficiently frequent to correlate with a range of biophysical factors. Patch-reef visitation rates and fish abundances varied with distance from shore and all species except S. regalis were seen more frequently inshore. This pattern is likely to be caused by factors including close proximity to additional foraging areas in mangroves and on fore-reefs and higher abundances close to inshore nursery habitats. Visitation rates and abundances of C. ruber, L. analis, O. chrysurus and S. regalis also varied seasonally (spring v. winter), possibly as fishes responded to temperature changes or undertook spawning migrations. The abundance of each transient predator species on the patch reefs generally exhibited limited diurnal variability, but L. analis was seen more frequently towards dusk. This study demonstrates that the distribution of transient predators is correlated spatially and temporally with a range of factors, even within a single lagoon, and these drivers are species specific. Transient predators are considered an important source of mortality shaping reef-fish assemblages and their abundance, in combination with the biomass of resident predators, was negatively correlated with the density of prey fishes. Furthermore, transient predators are often targeted by fishers and understanding how they utilize seascapes is critical for protecting them within reserves.
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Putzu A, Capelli B, Belletti A, Cassina T, Ferrari E, Gallo M, Casso G, Landoni G. Perioperative statin therapy in cardiac surgery: a meta-analysis of randomized controlled trials. Crit Care 2016; 20:395. [PMID: 27919293 PMCID: PMC5139027 DOI: 10.1186/s13054-016-1560-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 11/07/2016] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND Several studies suggest beneficial effects of perioperative statin therapy on postoperative outcome after cardiac surgery. However, recent randomized controlled trials (RCTs) show potential detrimental effects. The objective of this systematic review is to examine the association between perioperative statin therapy and clinical outcomes in cardiac surgery patients. METHODS Electronic databases were searched up to 1 November 2016 for RCTs of preoperative statin therapy versus placebo or no treatment in adult cardiac surgery. Postoperative outcomes were acute kidney injury, atrial fibrillation, myocardial infarction, stroke, infections, and mortality. We calculated odds ratios (ORs) and 95% confidence intervals (CIs) using fixed-effects meta-analyses. Primary analysis was restricted to trials with low risk of bias according to Cochrane methodology, and sensitivity analyses examined whether the risk of bias of included studies was associated with different results. We performed trial sequential analysis (TSA) to test the strength of the results. RESULTS We included data from 23 RCTs involving 5102 patients. Meta-analysis of trials with low risk of bias showed that statin therapy was associated with an increase in acute kidney injury (314 of 1318 (23.82%) with statins versus 262 of 1319 (19.86%) with placebo; OR 1.26 (95%CI 1.05 to 1.52); p = 0.01); these results were supported by TSA. No difference in postoperative atrial fibrillation, myocardial infarction, stroke, infections, or mortality was present. On sensitivity analysis, statin therapy was associated with a slight increase in hospital mortality. Meta-analysis including also trials with high or unclear risk of bias showed no beneficial effects of statin therapy on any postoperative outcomes. CONCLUSIONS There is no evidence that statin therapy in the days prior to cardiac surgery is beneficial for patients' outcomes. Particularly, statins are not protective against postoperative atrial fibrillation, myocardial infarction, stroke, or infections. Statins are associated with a possible increased risk of acute kidney injury and a detrimental effect on hospital survival could not be excluded. Future RCTs should further evaluate the safety profile of this therapy in relation to patients' outcomes and assess the more appropriate time point for discontinuation of statins before cardiac surgery.
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Roelfsema C, Thurstan R, Beger M, Dudgeon C, Loder J, Kovacs E, Gallo M, Flower J, Gomez Cabrera KL, Ortiz J, Lea A, Kleine D. A Citizen Science Approach: A Detailed Ecological Assessment of Subtropical Reefs at Point Lookout, Australia. PLoS One 2016; 11:e0163407. [PMID: 27706182 PMCID: PMC5051685 DOI: 10.1371/journal.pone.0163407] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 09/08/2016] [Indexed: 11/28/2022] Open
Abstract
Subtropical reefs provide an important habitat for flora and fauna, and proper monitoring is required for conservation. Monitoring these exposed and submerged reefs is challenging and available resources are limited. Citizen science is increasing in momentum, as an applied research tool and in the variety of monitoring approaches adopted. This paper aims to demonstrate an ecological assessment and mapping approach that incorporates both top-down (volunteer marine scientists) and bottom-up (divers/community) engagement aspects of citizen science, applied at a subtropical reef at Point Lookout, Southeast Queensland, Australia. Marine scientists trained fifty citizen scientists in survey techniques that included mapping of habitat features, recording of substrate, fish and invertebrate composition, and quantifying impacts (e.g., occurrence of substrate damage, presence of litter). In 2014 these volunteers conducted four seasonal surveys along semi-permanent transects, at five sites, across three reefs. The project presented is a model on how citizen science can be conducted in a marine environment through collaboration of volunteer researchers, non-researchers and local marine authorities. Significant differences in coral and algal cover were observed among the three sites, while fluctuations in algal cover were also observed seasonally. Differences in fish assemblages were apparent among sites and seasons, with subtropical fish groups observed more commonly in colder seasons. The least physical damage occurred in the most exposed sites (Flat Rock) within the highly protected marine park zones. The broad range of data collected through this top-down/bottom-up approach to citizen science exemplifies the projects’ value and application for identifying ecosystem trends or patterns. The results of the project support natural resource and marine park management, providing a valuable contribution to existing scientific knowledge and the conservation of local reefs.
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Vida VL, Tiberio I, Gallo M, Guariento A, Suti E, Pittarello D, Stellin G. Percutaneous internal jugular venous cannulation for extracorporeal circulation during minimally invasive technique in children with congenital heart disease: operative technique and results. Minerva Pediatr 2016; 68:341-347. [PMID: 25784208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND The aim of this study was to evaluate the safety and efficacy of the percutaneous cannulation of the internal jugular venous (PCIJV) for extracorporeal circulation during minimally invasive cardiac surgery (MICS) in children with simple congenital heart disease. METHODS From September 2007, 83 children (<16 years) underwent PCIJV for extracorporeal circulation. Primary outcome of the study was to evaluate the safety and advantages of PCIJV technique. Technical steps and pitfalls of PCIJV technique are described. RESULTS Median age at surgery was 9 years (range 3.5-16 years) and median body weight was 31 kilograms (range 13-72 kilograms); 32 patients (40%) had a body weight less than 30 kilograms. The PCIJV was achieved with a 14 French cannula in 61 pts (73%), with a 17 Fr cannula in 22 (23%). The PIJVC was judged difficult in 2 patients (2.4%); in both of them cannulation was achieved at a different venous site There were no procedure-related complications and no flow disturbances during the extracorporeal circulation. CONCLUSIONS The PCIJV during MICS is an effective and reproducible technique for achieving peripheral CPB in children with simple CHDs. We progressively expanded the use of this technique in smaller children and this allows us to further minimize surgical trauma without experiencing venous drainage's problems.
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Gallo M, Rizzati F, Padalino M, Stellin G. Anomalous origin of right coronary artery from pulmonary artery with aneurysmal coronary arteries. COR ET VASA 2016. [DOI: 10.1016/j.crvasa.2015.07.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gallo M, Protos AN, Trivedi JR, Slaughter MS. Surgical Treatment of Benign Superior Vena Cava Syndrome. Ann Thorac Surg 2016; 102:e369-71. [PMID: 27645987 DOI: 10.1016/j.athoracsur.2016.03.112] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 02/26/2016] [Accepted: 03/30/2016] [Indexed: 11/25/2022]
Abstract
The obstruction of blood flow through the superior vena cava (SVC) into the right atrium may present as a severe clinical syndrome. One of the benign causes of SVC obstruction is the long-term use of indwelling catheters and wires, increasing the chances of SVC thrombosis. The treatment of the benign SVC syndrome is focused on achieving long-term durability and patency of the superior venocaval system and normal life expectancy. We report the successful surgical management of a patient with severe symptomatic SVC syndrome and emphasize technical details that might be of value in treating this challenging pathologic condition.
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Fontanesi L, Schiavo G, Gallo M, Baiocco C, Galimberti G, Bovo S, Russo V, Buttazzoni L. Genome-wide association study for ham weight loss at first salting in Italian Large White pigs: towards the genetic dissection of a key trait for dry-cured ham production. Anim Genet 2016; 48:103-107. [PMID: 27593230 DOI: 10.1111/age.12491] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/16/2016] [Indexed: 12/17/2022]
Abstract
Protected designation of origin dry-cured hams are the most important productions of the Italian heavy pig industry. Hams capable of minimal seasoning losses produce better quality dry-cured hams. Ham weight loss during the first 7 days in brine (first salting) is highly correlated with the total loss of weight up to the end of seasoning, and it has quite high heritability (0.30-0.61). For these reasons, ham weight loss at first salting has been included as a meat quality trait in the Italian heavy pig selection program. In this work, we carried out a genome-wide association study for this parameter in the Italian Large White pig breed by genotyping 1365 animals with the Illumina BeadChip PorcineSNP60 chip. A total of 44 single nucleotide polymorphisms (SNPs) had a Pnominal value below 5.0E-04, five of which were below 5.0E-05 and one of them (ALGA0057985 on chromosome 10) was associated with this trait at a PBonferroni threshold of 0.10. These SNPs identified a total of at least 29 putative QTLs that were located on most porcine autosomal chromosomes. This study provides genomic information that could be useful in dissecting this complex trait by identifying potential candidate genes whose function could contribute to understanding the biological mechanisms affecting meat quality for seasoning aptitude.
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Fontanesi L, Schiavo G, Galimberti G, Bovo S, Bertolini F, Gallo M, Russo V, Buttazzoni L. P5018 Genome-wide association studies for dry-cured ham quality traits in Italian Large White and Italian Duroc pigs. J Anim Sci 2016. [DOI: 10.2527/jas2016.94supplement4124x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Alabiso I, Ballari A, Brignardello E, Numico G, Sperti E, Cristofano A, Russi E, Oliva C, Mistrangelo M, Levis M, Gallo M, Di Costanzo G, Bertetto O. Activation of Palliative Cares by hospital oncologists: first results of a survey conducted by Rete Oncologica del Piemonte e della Valle d'Aosta. Ann Oncol 2016. [DOI: 10.1093/annonc/mdw336.06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Gallo M, Ballesteros M, Molero A, Morón I. Taste Aversion Learning as a Tool for the Study of Hippocampal and Non-Hippocampal Brain Memory Circuits Regulating Diet Selection. Nutr Neurosci 2016; 2:277-302. [DOI: 10.1080/1028415x.1999.11747284] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gallo M, Dvir D, Demertzis S, Pedrazzini G, Berdajs D, Ferrari E. Transcatheter valve-in-valve implantation for degenerated bioprosthetic aortic and mitral valves. Expert Rev Med Devices 2016; 13:749-58. [DOI: 10.1080/17434440.2016.1207521] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Nocerino E, Remondino F, Uccheddu F, Gallo M, Gerosa G. 3D MODELLING AND RAPID PROTOTYPING FOR CARDIOVASCULAR SURGICAL PLANNING – TWO CASE STUDIES. ACTA ACUST UNITED AC 2016. [DOI: 10.5194/isprsarchives-xli-b5-887-2016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In the last years, cardiovascular diagnosis, surgical planning and intervention have taken advantages from 3D modelling and rapid prototyping techniques. The starting data for the whole process is represented by medical imagery, in particular, but not exclusively, computed tomography (CT) or multi-slice CT (MCT) and magnetic resonance imaging (MRI). On the medical imagery, regions of interest, i.e. heart chambers, valves, aorta, coronary vessels, etc., are segmented and converted into 3D models, which can be finally converted in physical replicas through 3D printing procedure. In this work, an overview on modern approaches for automatic and semiautomatic segmentation of medical imagery for 3D surface model generation is provided. The issue of accuracy check of surface models is also addressed, together with the critical aspects of converting digital models into physical replicas through 3D printing techniques. A patient-specific 3D modelling and printing procedure (Figure 1), for surgical planning in case of complex heart diseases was developed. The procedure was applied to two case studies, for which MCT scans of the chest are available. In the article, a detailed description on the implemented patient-specific modelling procedure is provided, along with a general discussion on the potentiality and future developments of personalized 3D modelling and printing for surgical planning and surgeons practice.
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Padalino MA, Castaldi B, Fedrigo M, Gallo M, Zucchetta F, Vida VL, Milanesi O, Angelini A, Stellin G. Porcine Intestinal Submucosa (CorMatrix) for Semilunar Valve Repair in Children: A Word of Caution After Midterm Results. Semin Thorac Cardiovasc Surg 2016; 28:436-445. [PMID: 28043457 DOI: 10.1053/j.semtcvs.2016.04.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2016] [Indexed: 12/12/2022]
Abstract
Surgery for congenital valve anomalies in children is a challenging topic. We aim to assess early and late functional outcomes of CorMatrix scaffold after repair of aortic and pulmonary valves (PV) in congenital heart disease in a prospective nonrandomized clinical study on children with congenital aortic (Group 1) or PV (Group 2) disease. Primary endpoints were reoperation or reintervention on semilunar valves and echocardiographic evidence of regurgitation or stenosis greater than mild. Results of PV repair in tetralogy of Fallot were compared with a control group of patients who underwent PV repair with polytetrafluoroethylene. A total of 22 consecutive selected patients with complex congenital heart disease were included: PV repair in 18 and aortic valve repair in 4. At discharge bidimensional echocardiography, semilunar valve regurgitation was mild in 50% of all patients. At a median follow-up of 23 months (4.3-51.3), reoperation for aortic valve replacement was necessary in 2; right ventricular outflow tract obstruction occurred in 3, requiring interventional treatment in 2. Pulmonary regurgitation degree worsened in most patients of Group 2 at follow up. When comparing patients with tetralogy of Fallot in Group 2 with patients who underwent PV repair with polytetrafluoroethylene, there were no significant differences in PV function at follow up. We conclude that CorMatrix scaffold for semilunar valve reconstruction does not present with significant advantages to traditional materials at mid term follow up. In addition, when used for pulmonary valve reconstruction, CorMatrix seems to show gradual functional deterioration in the mid term.
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Chandrasekhar C, Bagyalakshmi H, Srinivasan M, Gallo M. Partial ridge regression under multicollinearity. J Appl Stat 2016. [DOI: 10.1080/02664763.2016.1181726] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Gallo M, Bonetti A, Poser H, Naso F, Bottio T, Bianco R, Paolin A, Franci P, Busetto R, Frigo AC, Buratto E, Spina M, Marchini M, Ortolani F, Iop L, Gerosa G. Decellularized aortic conduits: could their cryopreservation affect post-implantation outcomes? A morpho-functional study on porcine homografts. Heart Vessels 2016; 31:1862-1873. [PMID: 27115146 DOI: 10.1007/s00380-016-0839-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 04/15/2016] [Indexed: 12/30/2022]
Abstract
Decellularized porcine aortic valve conduits (AVCs) implanted in a Vietnamese Pig (VP) experimental animal model were matched against decellularized and then cryopreserved AVCs to assess the effect of cryopreservation on graft hemodynamic performance and propensity to in vivo repopulation by host's cells. VPs (n = 12) underwent right ventricular outflow tract substitution using AVC allografts and were studied for 15-month follow-up. VPs were randomized into two groups, receiving AVCs treated with decellularization alone (D; n = 6) or decellularization/cryopreservation (DC; n = 6), respectively. Serial echocardiography was carried out to follow up hemodynamic function. All explanted AVCs were processed for light and electron microscopy. No signs of dilatation, progressive stenosis, regurgitation, and macroscopic calcification were echocardiographically observed in both D and DC groups. Explanted D grafts exhibited near-normal features, whereas the presence of calcification, inflammatory infiltrates, and disarray of elastic lamellae occurred in some DC grafts. In the unaltered regions of AVCs from both groups, almost complete re-endothelialization was observed for both valve cusps and aorta walls. In addition, side-by-side repopulation by recipient's fibroblasts, myofibroblasts, and smooth muscle cells was paralleled by ongoing tissue remodeling, as revealed by the ultrastructural identification of typical canals of collagen fibrillogenesis and elastogenesis-related features. Incipient neo-vascularization and re-innervation of medial and adventitial tunicae of grafted aortic walls were also detected for both D and DC groups. Cryopreservation did not affect post-implantation AVC hemodynamic behavior and was topically propensive to cell repopulation and tissue renewal, although graft deterioration including calcification was present in several areas. Thus, these preliminary data provide essential information on feasibility of decellularization and cryopreservation coupling in the perspective of treatment optimization and subsequent clinical trials using similarly treated human allografts as innovative heart valve substitutes.
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Toto F, Bejko J, Carrozzini M, Comisso M, Bortolussi G, Gallo M, Gregori D, Tarzia V, Gerosa G, Bottio T. The Impact of the Exit Site Left Ventricle Assist Device Power Supply on Infection Incidence: A Single Center Experience. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Tarzia V, Bortolussi G, Bejko J, Gallo M, Comisso M, Carrozzini M, Nadali M, Bianco R, Bottio T, Gerosa G. Coagulation and Inflammation Profiles with Axial and Centrifugal Flow LVADs. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Di Martino R, Camarda M, Cascio M, Gallo M, Magliano A, Baldo S, Romano A, Minafra L, Forte GI, Russo G, Gilardi MC, Di Raimondo F, Scalese S, La Magna A. Analysis of the role of elution buffers on the separation capabilities of dielectrophoretic devices. SENSING AND BIO-SENSING RESEARCH 2016. [DOI: 10.1016/j.sbsr.2015.12.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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