A Study of the Bibliometry and Areas of the Research Groups of Archivos de Bronconeumología (2003–2007)

IntroductionScientific cooperation is essential for the advance of biomedical research. Scientists set up informal groups to work together on common issues, who are the main units in the research funding system. Bibliometric and Social Network Analysis methods allow informal groups in scientific papers to be identified and characterised. The objective of the study is to identify research groups in Archivos de Bronconeumología between 2003 and 2007 period with the aim of characterizing their scientific collaboration patterns and research areas.MethodsCo-authorships, institutional collaboration relationships and the main research areas of papers published in Archivos de Bronconeumología have been identified. Co-authorship networks and institutional collaboration networks have been constructed by using Pajek software tool.ResultsA total of 41 research groups involving 171 investigators have been identified. The Collaboration Index for articles was 5.59 and the Transcience Index was 73.11%. There was institutional collaboration in 60.33% of papers. The collaboration between institutions of the same region prevails (41.03%), followed by collaborations between departments, services or units of the same institution (39.74%), inter-regional collaboration (14,97%) and international collaboration (6.83%). A total of 83.03% of articles were cited. The main research areas covered by groups were chronic obstructive pulmonary disease, asthma, lung neoplasm, bronchogenic carcinoma, smoking and pulmonary embolism.ConclusionsThe scientific production of a large number of Respiratory System Spanish research groups is published in Archivos de Bronconeumología. A notable collaboration and citation rate has been observed. Nevertheless, it is still essential to encourage inter-regional and international collaboration.     

VI documento de consenso de la sociedad española de trasplante hepático (SETH)

The goal of the Spanish Liver Transplantation Society (La Sociedad Española de Trasplante Hepático) is to promote and create consensus documents about current topics in liver transplantation with a multidisciplinary approach. To this end, on October 20, 2016, the 6 th Consensus Document Meeting was held, with the participation of experts from the 24 authorized Spanish liver transplantation programs. This Edition discusses the following subjects, whose summary is offered below: 1) limits of simultaneous liver-kidney transplantation; 2) limits of elective liver re-transplantation; and 3) liver transplantation after resection and hepatocellular carcinoma with factors for a poor prognosis. The consensus conclusions for each of these topics is provided below.     

Anatomie et imagerie de l’articulation tarsométatarsienne (articulation de Lisfranc)

The tarsometatarsal joint (Lisfranc joint) is a synovial articulation of plane variety that is made up of three compartments. It is located between the bases of the five metatarsals and the anterior tarsal bones (medial, intermediate, lateral cuneiforms and cuboid bones). A great stability is provided by the particular shape of the joint compared to a mortise created by the cuneiform bones and the base of the second metacarpal, sometimes referred to as the “keystone concept?? as well as strong dorsal, plantar and interosseous ligaments, including mainly the first medial cuneometatarsal interosseous ligament (Lisfranc ligament). Traumatic lesions are the commonest disorders of this joint. Violent accidents including a mechanism of forced plantar flexion combined with rotation are the main causes of injury. Imaging of the tarsometatarsal joint includes conventional radiographs, computed tomography (CT) and magnetic resonance imaging (MR). Conventional radiographic projections remain the first-line imaging modality. However, owing to their often subtle radiographic presentation, Lisfranc lesions are frequently overlooked. Due to its excellent spatial resolution and three-dimensional imaging capabilities, CT is the procedure of choice for the evaluation of the injured foot. MR may be more accurate at detecting ligamentous and synovial disorders particularly owing to its high density resolution.     

La luxation radiocarpienne (à propos de neuf cas)

Radiocarpal dislocation is an uncommon entity in traumatolgy. The purpose of this study was to detail the pathogenesis of radiocarpal dislocation and describe its complications and treatment. Nine radiocarpal dislocations were reviewed retrospectively. Dorsal displacement was observed for seven dislocations, anterior displacement for two dislocations. All were associated with fractures of the radial styloid. Treatment was always surgical. At last follow-up (mean 3 years), the overall functional outcome was satisfactory. The Green and O’Brien (modified by Cooney) score was excellent for three patients, fair for four, and mediocre for two. Two cases of radiocarpal degeneration were observed at last follow-up. Intracarpal and/or distal radio-ulnar lesions must be stabilized in order to limit the risk of future degeneration.     

Pseudoaneurismas infecciosos (micóticos) de la arteria renal en receptores de trasplante renal

IntroductionInfection of the artery at or around the anastomotic site is an ominous complication commonly presenting as a leak and/or local dissolution of the arterial wall.Material and methodsNarrative review based on relevant PubMed, EMBASE, and Scielo indexed English or Spanish-written articles for the period January 2000-December 2019. A pooled analysis regarding etiology was performed. Based on the results obtained with this approach, a diagnostic/therapeutic algorithm is suggested in order to optimize its clinical management.FindingsArterial pseudoaneurysms are pseudocapsuled contained hematomas generated as the result of an arterial leaking. They are infrequent(<1% of cases),mostly related with infection(contamination of preservation fluid or sepsis) and located at the arterial anastomotic site in renal transplantation recipients. Although they are frequently diagnosed in symptomatic patients days/weeks after transplantation, they may remain unnoticed for long periods being diagnosed incidentally. Color coded-Doppler ultrasound confirms the clinical suspicion. Angio CT-scan and angiography are used for surgical planning or endovascular treatment, respectively. The etiological diagnosis is made on a basis of excised tissue culture. The decision-making process regarding the treatment approach, mostly relies on clinical presentation and anatomical location. Therapeutic options include ultrasound-guided percutaneous thrombin injection, endovascular treatment, and surgery.ConclusionsMycotic pseudoaneurysms in renal transplantation recipients may pose a significant challenge in cases of spontaneous rupture, given the risk for massive bleeding and death. Adequate management requires accurate diagnosis. Early endovascular stenting remains the treatment of choice in hemodynamically unstable patients. Percutaneous injection and vascular reconstruction present variable success rates in preserving graft function.     

Lipodystrophie membranaire (maladie de Nasu-Hakola): Une observation et revue de la littérature

Membranous lipodystrophy (ML) is a rare hereditary disorder of adipose tissue characterized by polycystic bone lesions and progressive dementia. We describe the case of a 36-year-old woman with mechanical bone pain. Routine laboratory analyses revealed only a type IV hyperlipoproteinemia and hyperexcretion of urinary calcium. Roentgenograms of short and long bones showed symmetrical, well-defined, non-expansile cystic lesions. Bone biopsy found a yellow lipid-like substance in the osteolitic lesions and histopathological studies were non-specific. Neuropsychiatric examination, including cranial computerized tomography (CT), was found to be normal. According to clinical, analytical, radiological and histological findings ML was the final diagnosis. No previous cases of ML have been reported in our country and we review the literature concerning this disease.     

Hématome spontané de la surrénale (à propos de 2 cas)

Spontaneous hematoma of the adrenal glands is a very rare condition and may have multiple etiologies. It is usually asymptomatic and may easily be confused with a malignant tumor of the adrenal glands. We herein report two cases: the first patient was a 77-year-old male patient with an uneventful medical history who was admitted for abdominal pain. Ultrasonography and CT-scan revealed a heterogeneous mass of the right adrenal gland. The second patient, a 31-year-old woman presented with intermittent left lumbar pain. Ultrasonography and CT-scan revealed a cystic tumor of the left adrenal gland. In both cases laboratory tests were normal and adrenalectomy was performed. Histopathological evaluation revealed an isolated hematoma without adrenal abnormalities. The clinical, diagnostic and therapeutical aspects are discussed     

Organic matter composition in the sediment of three Brazilian coastal lagoons: district of Macaé, Rio de Janeiro (Brazil)

Freshwater lagoons comprise important coastal ecosystems and natural buffers between urbanized land areas and open ocean in the Rio de Janeiro State, Brazil. Studies of sediment and water chemistry, zooplankton and bacterial communities to assess the extent of anthropogenic disturbance are available. Here we contribute with an organic-geochemical approach supplemented by some microbiological aspects to complete the characterization of these lagoonal ecosystems. Bulk organic matter and extractable lipids (aliphatic hydrocarbons, alcohols and fatty acids, sterols) were investigated from two locations per lagoon: at the seaward site and landward ends - and at two depth intervals (0-3 and 3-6 cm) per site. Urbanized Imboacica Lagoon received increased anthropogenic input over the most recent years represented by the topmost 3 cm of sediment, whereas deeper sediment layers are less affected by human influence. Eutrophication or nutrient availability favored enhanced algal/cyanobacterial growth. In remote Cabiúnas and Comprida Lagoons pristine conditions are preserved. Organic matter from vascular plants dominates (chain length of free lipids up to C36), which is exceptionally well preserved by acidic lagoonal waters. Differentiation between landward and seaward sites in these two lagoons is less well established due to much smaller surface/volume to catchment ratios. No anthropogenic influences are yet detectable in sediments of Cabiúnas and Comprida Lagoons.     

Perioperative platelet transfusion: recommendations of the Agence française de sécurité sanitaire des produits de santé (AFSSaPS) 2003

Purpose

To present the recommendations of the Agence Française de Sécurité Sanitaire des Produits de Santé (AFSSaPS; French Safety Agency for Health Products).

Methods

A panel of experts reviewed and graded the literature on platelet transfusions; recommendations were formulated.

Main findings

Threshold platelet counts (PC) for transfusions in the perioperative context have not been clearly defined and should be determined by the existence of hemorrhagic risk factors. In the case of commonly practiced invasive procedures, the recommendation is to transfuse in orderto achieve PC > 50,000 · μL^?1. In the absence of platelet dysfunction, regardless of the type of surgery, the standard hemorrhagic riskthreshold for surgery is 50,000 · μL^?1. It has not been proven that the risk threshold is different according to the type of surgery. For neurosurgery and ophthalmologic surgery involving the posterior segment of the eye, a PC of 100,000 · μL^?1 is required. For axial regional anesthesia, a PC of 50,000 · μL^?1 is sufficient for spinal anesthesia; a PC of 80,000 · μL^?1 has been proposed for epidurals. During massive transfusion, prophylactic platelet infusion cannot be recommended beyond a loss of two blood volumes in less than 24 hr (Professional Consensus). As for the therapeutic transfusion of plasma and/or platelets, as much as possible, platelet deficit should be documented with test results (PC and fibrinogen) before transfusing. In the event of bleeding, platelet transfusion may precede plasma infusion. However, although this recommendation has been the subject of several professional consensus agreements, it is not based on any randomized studies.

Conclusion

Threshold PC for perioperative transfusions have not been clearly defined and most recommendations are the result of a professional consensus.     

Toelichting voor de patiënt: Heelkundige behandeling van kanker van de dikke darm (colon)

Introduction : Mesenteric cysts (MC) are rare intra-abdominal tumors. The incidence has been estimated to be 1/100000 in the adult population and 1/20000 in children, with a male: female ratio of 1:1. The first successful laparoscopic resection of a MC was reported by Mackenzie et al. in 1993. The malignant transformation appears in 3% of cases. In our study, we presented the feasibility and results of laparoscopic resection. Case Reports : We report two cases of mesenteric cysts removed by a laparoscopic procedure.

Results : Laparoscopic approach in the two cases was successful. No conversion was observed. No complication occurred. The histopathological studies revealed no malignancy. After 18 months of follow-up the 2 patients remained free of disease.

Conclusion : In selected cases, safe and complete resection of MC could be achieved by laparoscopic approach. Complete surgical resection of MC is the treatment of choice when the cyst becomes symptomatic or when complications occur.