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1.
Ann Burns Fire Disasters ; 37(2): 101-105, 2024 Jun.
Artículo en Francés | MEDLINE | ID: mdl-38974786

RESUMEN

Loss of sensitivity in the operated area is common after some plastic surgery procedures and promotes accidental trauma on a daily basis. Several studies showed that a loss of sensitivity is constant after an abdominoplasty. We report here the cases of three 3rd degree burns by contact, at the subumbilical level, with a hot water bottle soon after an abdominoplasty, responsible for significant aesthetic sequelae.

2.
Artículo en Francés | MEDLINE | ID: mdl-39060145

RESUMEN

The forehead, although sometimes hidden by a fringe, is a major region of the face revealing many expressions such as fatigue, surprise, concern, anger… In reconstructive surgery, the forehead is frequently used as a donor site. This article looks at three aspects: the used, traumatised and repaired forehead. The forehead, with its high-quality hairless skin and proximity to the noble structures of the face, is a central donor site. The forehead flap is commonly used for nasal reconstruction, with several variations to meet different needs. Other pedicled flaps, such as the supra-eyebrow flap and the crane flaps, are also used for various facial reconstructions. The forehead can be affected by trauma, burns, vascular lesions and skin tumours. We are particularly interested "en coup de sabre" linear scleroderma, an autoimmune disease that causes cutaneous and subcutaneous fibrosis, sometimes associated with Parry Romberg syndrome. In addition, lesions of the temporal branch of the facial nerve lead to muscular paralysis, affecting the aesthetics and function of the frontal region. Precise knowledge of the anatomy of the nerve pathway is crucial to avoid iatrogenic lesions. The entire arsenal of reconstructive surgery is useful for repairing the forehead. Controlled wound healing, tension suturing and the use of local flaps are key techniques for repairing the forehead. Tension sutures are particularly effective for small losses of substance, and their orientation depends on the location. Advancement, rotation and transposition flaps are used for larger losses of substance. Skin grafts, although less aesthetic, are sometimes necessary. Skin expansion, although socially restrictive, is used to treat congenital giant nevi and increase the surface area of forehead flaps.

3.
J Visc Surg ; 160(2): 158-159, 2023 04.
Artículo en Inglés | MEDLINE | ID: mdl-36878836

RESUMEN

Large and complicated hernias are doubly challenging; not only must the hernia be treated according to a degree of severity, but it also necessary to prevent compartment syndrome during reintegration of the viscera. Possible complications range from intestinal necrosis to perforation of the hollow organs. We are presenting the rare case of a duodenal perforation in a man with large strangulated hernia.


Asunto(s)
Traumatismos Abdominales , Úlcera Duodenal , Hernia Abdominal , Hernia Inguinal , Úlcera Péptica Perforada , Humanos , Masculino , Abdomen , Traumatismos Abdominales/complicaciones , Hernia Abdominal/complicaciones
4.
Ann Chir Plast Esthet ; 68(1): 81-85, 2023 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-35902288

RESUMEN

Chemical burns are often deep with difficult initial clinical evaluation, especially those due to alkalic agents, which have a strong penetrating power. They therefore require specialized care in a Burn Unit. Self-inflicted burns are infrequent but their management represents a real challenge. We report the case of a 47-year-old referred to our Burn Center for the evaluation of a self-inflicted corrosion with an alkalic agent (soda), injected at the crease of the left elbow. The patient, right handed, was a nurse and had notably a psychiatric history of depressive syndrome. We observed a deep, well-defined necrosis area, associated with intense peri-lesional inflammation and extensive cellulitis. Faced with this unusual clinical appearance for a chemical burn, the patient's questioning was repeated and the patient finally admitted to having injected himself with a basic caustic product intravenously. Surgical treatment was carried out in two stages: debridement with exposure of vascular and neural structures then coverage with a free anterolateral thigh flap. The postoperative consequences were uneventful with a satisfactory functional result. Factitious disorders are underestimated and often misleading. Among factitious disorders, self-inflicted wounds remain a real challenge requiring multidisciplinary management. Many etiologies exist, among which injection of drugs or substances, in any anatomical localization, leading to variable loss of substance. The use of a free flap for acute extravasation is rare but sometimes essential. The anterolateral thigh flap allows good resurfacing on areas with important functional requirements.


Asunto(s)
Colgajos Tisulares Libres , Procedimientos de Cirugía Plástica , Traumatismos de los Tejidos Blandos , Humanos , Persona de Mediana Edad , Trasplante de Piel , Codo/cirugía , Inyecciones Intravenosas , Álcalis/efectos adversos , Traumatismos de los Tejidos Blandos/cirugía , Colgajos Tisulares Libres/cirugía , Muslo/cirugía , Necrosis/inducido químicamente , Necrosis/cirugía , Resultado del Tratamiento
5.
Ann Burns Fire Disasters ; 35(2): 152-159, 2022 Jun 30.
Artículo en Francés | MEDLINE | ID: mdl-36381338

RESUMEN

Armenia and Azerbaijan fought between September and November 2020 in Nagorno-Karabagh. Several surgical missions were scheduled by Assistance Publique- Hôpitaux de Paris to help care for the warinjured Armenians. These missions included the evaluation of Armenian soldiers suspected of having been injured by phosphorus. Facing, during these missions, such infrequent burns, we were interested in their pathophysiology, care and complications. Repeated up-to-date information is necessary in order to better take care of phosphorus burns. Therefore, we conducted a literature review, using PubMed and the Mesh Terms "phosphorus" and "burns", without setting any date limit. The review acknowledges that phosphorus burns are deep, tend to spread and may be the cause of systemic toxicity including hypocalcaemia, which can lead to heart rate disturbance and even death. In the acute phase, burns should be extensively washed with normal saline or water before a mechanical decontamination. One should not use oily dressings, given the liposolubility of phosphorus. Subsequently, one or many debridements are necessary before starting wound coverage, for which any kind of plastic surgery may be used. Phosphorus burns are infrequent but serious. They mainly occur in warfare and should be known by any caregiver acting in this context.

6.
Ann Chir Plast Esthet ; 67(3): 125-132, 2022 Jun.
Artículo en Francés | MEDLINE | ID: mdl-35662477

RESUMEN

AIM OF THE STUDY: Facial paralysis can cause aesthetic and functional sequelae such as spasms and synkinesis. Botulinum toxin injection is one of the key treatments for these sequelae. Its use is widely reported in the literature for many muscles of the face but little for the buccinator muscle. However, its hyperactivity can be disabling, generating chewing and smile disorders in particular. The aim of this prospective study is to report the effects of botulinum toxin using a questionnaire specifically for the buccinator muscle. PATIENTS AND METHODS: The study was conducted on 13 patients. The facial paralysis was of various origins. The questionnaire consisted of 10 questions each assessing a facial mimic involving the buccinator muscle. The rating scale ranged from -10 (major deterioration) to 10 (major improvement) for each question. The evaluation was done at 1 and 4 months after the injection. We found an improvement for all the mimics and gestures evaluated (0 to 7.38 at 1 month and 0.15 to 6.62 at 4 months). This improvement was greater at 1 month than at 4 months. Few side effects were reported. CONCLUSION: Botulinum toxin injections are an effective, safe therapeutic solution for the treatment of the facial paralysis sequelae of the buccinator muscle through a new specific questionnaire. Subsequently, it would be interesting to carry out an evaluation on a larger population and to compare it with other recognized scores in facial paralysis.


Asunto(s)
Toxinas Botulínicas Tipo A , Parálisis Facial , Fármacos Neuromusculares , Sincinesia , Toxinas Botulínicas Tipo A/uso terapéutico , Progresión de la Enfermedad , Músculos Faciales , Parálisis Facial/etiología , Humanos , Fármacos Neuromusculares/uso terapéutico , Estudios Prospectivos , Sincinesia/tratamiento farmacológico , Sincinesia/etiología
7.
J Visc Surg ; 159(1): 21-30, 2022 02.
Artículo en Inglés | MEDLINE | ID: mdl-33349570

RESUMEN

PURPOSE OF THE STUDY: To determine the statistical indicators aimed at identifying patients for whom ambulatory colectomy could be proposed without additional risk. PATIENTS AND METHODS: The medical charts of patients who benefited from scheduled colonic or rectal resection during conventional hospitalization stays between 2018 and 2019 were reviewed. Eligibility for ambulatory colectomy was defined by hospital stay≤4 days and absence of any postoperative complication. Patient characteristics were compared, and the results were modeled in the form of a decision-making tree. The effect of an enhanced recovery after surgery (ERAS) protocol for each sub-group was calculated. RESULTS: One hundred and ten (110) patients were selected (41 "eligible" and 69 "non-eligible"). Median age was 73 years (27-95). Nearly 80% of the patients were operated for cancer. In multivariate analysis, age (≥65 years, OR=3.15, CI95%=1.22-8.12), diabetes (OR=3.91, CI95%=1.03-14.8) and indication (sigmoidectomy for diverticulosis, OR=0.21, CI=95%=0.05-0.9) were the only identified independent variables. Likelihood for ambulatory eligibility was 83.3% (<65 years, sigmoidectomy pour diverticulosis, +ERAS=92%-96.9%), 58.3% (<65 years, other indication, +ERAS=63.4%-89.9%), 35.7% (≥65 years without diabetes, +ERAS=40.0%-55.9%) and 8.3% (≥65 years with diabetes, +ERAS=10.0%-20.1%). CONCLUSION: Sigmoidectomy for diverticulosis in a patient under 65 years age represents the best indication for ambulatory colectomy, a procedure that must not be proposed to diabetic patients over 65 years of age. In the other cases (<65 years operated in another indication and non-diabetic≥65 years), ambulatory surgery is possible, pending satisfactory application of the ERAS protocol.


Asunto(s)
Recuperación Mejorada Después de la Cirugía , Laparoscopía , Proctectomía , Anciano , Colectomía/métodos , Colon/cirugía , Humanos , Laparoscopía/métodos , Tiempo de Internación , Complicaciones Posoperatorias/etiología
8.
J Visc Surg ; 159(3): 260-263, 2022 06.
Artículo en Inglés | MEDLINE | ID: mdl-34774450

RESUMEN

The hepatic compartment syndrome (HCS) corresponds to compression of the intraparenchymal liver tissue (intrahepatic pressure greater than the portal vein pressure, i.e. >10-15mmHg) caused by a subcapsular or intraparenchymal hematoma of the liver. It can lead to reversal of portal flow and hepatic parenchymal necrosis. We report the case of a patient who underwent a right radical nephrectomy by laparoscopy and who presented with HCS due to a subcapsular hematoma of the liver. Emergency decompression of the liver via laparotomy was performed, which allowed rapid clinical and laboratory improvement.


Asunto(s)
Síndromes Compartimentales , Laparoscopía , Hepatopatías , Síndromes Compartimentales/etiología , Síndromes Compartimentales/cirugía , Descompresión Quirúrgica/efectos adversos , Hematoma/complicaciones , Humanos , Laparoscopía/efectos adversos , Hepatopatías/terapia , Nefrectomía/efectos adversos
10.
Clin Neurol Neurosurg ; 197: 106125, 2020 10.
Artículo en Inglés | MEDLINE | ID: mdl-32836063

RESUMEN

Pain after supratentorial craniotomy is common, 55 % to 80 % of patients experience moderate to severe pain in the first 48 h(1-7). The importance of intravenous dexamethasone as an adjuvant to local anaesthetics is increasingly applied(1-7), however its role in scalp nerve blocks with ropivacaine 0.75 % remains unexplored in post-operative analgesia. We analyzed 134 supratentorial craniotomies under general anaesthesia, 46 of which had preoperatively bilateral scalp nerve blocks with ropivacaine 0.75 %. The general anaesthesia was standardized and included 8 mg of intravenous dexamethasone at the induction. The postoperative pain was assessed using the numerical rating scale with patients in the post anaesthesia care unit and subsequently every 8 h in the neurosurgery unit until the 48th hour. A NRS value above 3 led to the administration of a rescue analgesic according to the defined protocol until an efficient analgesia was obtained. Postoperative pain was controlled in both groups, however the need for rescue analgesics in the scalp nerve blocks group was reduced by 40 % (39 % vs. 65 %; p = 0.006) compared to the control group. More than 60 % of the patients from the scalp nerve blocks group had an efficient analgesia without any rescue analgesic. Peroperatively the scalp nerve blocks group showed a decrease in opioid consumption and a better hemodynamic stability. No anesthetic or chirurgical complications related to the use of scalp blocks were observed. Scalp nerve blocks associated with intravenous dexamethasone are found to be a straightforward and efficient analgesic approach during supratentorial craniotomies.


Asunto(s)
Anestésicos Locales/uso terapéutico , Craneotomía/efectos adversos , Dexametasona/uso terapéutico , Glucocorticoides/uso terapéutico , Bloqueo Nervioso/métodos , Dolor Postoperatorio/tratamiento farmacológico , Ropivacaína/uso terapéutico , Cuero Cabelludo/efectos de los fármacos , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Quimioterapia Combinada , Femenino , Humanos , Masculino , Persona de Mediana Edad , Manejo del Dolor/métodos , Dimensión del Dolor , Método Simple Ciego , Resultado del Tratamiento , Adulto Joven
11.
Sci Total Environ ; 635: 1444-1466, 2018 Sep 01.
Artículo en Inglés | MEDLINE | ID: mdl-29710669

RESUMEN

Marine eutrophication in the North-East Atlantic (NEA) strongly relies on nutrient enrichment at the river outlets, which is linked to human activities and land use in the watersheds. The question is whether human society can reduce its nutrient emissions by changing land use without compromising food security. A new version of Riverstrahler model (pyNuts-Riverstrahler) was designed to estimate the point and diffuse nutrient emissions (N, P, Si) to the rivers depending on land use in the watersheds across a large domain (Western Europe agro-food systems, waste water treatment). The loads from the river model have been used as inputs to three marine ecological models (PCOMS, ECO-MARS3D, MIRO&CO) covering together a large part of the NEA from the Iberian shelf to the Southern North Sea. The modelling of the land-ocean continuum allowed quantifying the impact of changes in land use on marine eutrophication. Pristine conditions were tested to scale the current eutrophication with respect to a "natural background" (sensu WFD), i.e. forested watersheds without any anthropogenic impact. Three scenarios representing potential management options were also tested to propose future perspectives in mitigating eutrophication. This study shows that a significant decrease in nitrogen fluxes from land to sea is possible by adapting human activities in the watersheds, preventing part of the eutrophication symptoms in the NEA rivers and adjacent coastal zones. It is also shown that any significant achievement in that direction would very likely require paradigmatic changes at social, economic and agricultural levels. This requires reshaping the connections between crop production and livestock farming, and between agriculture and local human food consumption. It also involves cultural changes such as less waste production and a shift towards lower-impact and healthier diets where half of the animal products consumption is replaced by vegetal proteins consumption, known as a demitarian diet (http://www.nine-esf.org/node/281/index.html).


Asunto(s)
Política Ambiental , Eutrofización , Contaminación del Agua/prevención & control , Conservación de los Recursos Naturales/métodos , Monitoreo del Ambiente , Nitrógeno/análisis , Fósforo/análisis , Contaminantes Químicos del Agua/análisis , Contaminación del Agua/estadística & datos numéricos
12.
Anaesth Crit Care Pain Med ; 37(6): 577-581, 2018 12.
Artículo en Inglés | MEDLINE | ID: mdl-29476939

RESUMEN

OBJECTIVE: We compared the effectiveness of nerve blocks (regional anaesthesia, [RA]) versus local anaesthesia (LA) to treat face and hand wounds. Emergency physicians who had not previously used nerve blocks administered the anaesthesia based on anatomic landmarks. METHODS: This prospective observational open study was conducted at a military teaching hospital emergency department (ED) between May 1, 2013 and January 31, 2014. All patients requiring treatment of facial or hand wounds were included. The primary outcome was anaesthesia effectiveness 15minutes post-administration. We also recorded the number of injections sites, injected volume, pain of administration, operator comfort, and complications. Lidocaine anaesthesia without epinephrine was used. RESULTS: Of the 1090 treated patients, 617 patients were included in the analysis: 316 with hand wounds and 301 with facial wounds. Overall, 130 wrist blocks and 63 facial blocks were performed. RA effectiveness was comparable to that of LA: for facial wounds, RA=88.9% versus LA=89% (P=0.86); for hand wounds, RA=82.2% versus LA=90.1% (P=0.15). RA groups had significantly fewer injections than the LA groups, and less anesthetic was injected in the facial RA group. The pain of anaesthesia administration and operator comfort was similar. There was no complication during the 9-month data collection period. CONCLUSION: Facial and wrist nerve blocks are easy to administer and as efficient as local infiltrations, plus they require fewer injection sites, and, for facial RA, less anesthetic. Their teaching and use should be more widespread in EDs.


Asunto(s)
Anestesia de Conducción/métodos , Servicios Médicos de Urgencia/métodos , Traumatismos Faciales/terapia , Traumatismos de la Mano/terapia , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Puntos Anatómicos de Referencia , Anestesia de Conducción/efectos adversos , Anestésicos Locales/uso terapéutico , Niño , Preescolar , Femenino , Humanos , Lactante , Recién Nacido , Lidocaína/uso terapéutico , Masculino , Persona de Mediana Edad , Bloqueo Nervioso/métodos , Dolor/etiología , Médicos , Estudios Prospectivos , Resultado del Tratamiento , Adulto Joven
13.
J Perinatol ; 38(2): 175-180, 2018 02.
Artículo en Inglés | MEDLINE | ID: mdl-28933776

RESUMEN

OBJECTIVE: To examine the association of nursing overtime, nursing provision and unit occupancy rate with medical incident rates in the neonatal intensive care unit (NICU) and the risk of mortality or major morbidity among very preterm infants. STUDY DESIGN: Single center retrospective cohort study of infants born within 23 to 29 weeks of gestational age or birth weight <1000 g admitted at a 56 bed, level III NICU. Nursing overtime ratios (nursing overtime hours/total nursing hours), nursing provision ratios (nursing hours/recommended nursing hours based on patient dependency categories) and unit occupancy rates were pooled for all shifts during NICU hospitalization of each infant. Log-binomial models assessed their association with the composite outcome (mortality or major morbidity). RESULTS: Of the 257 infants that met the inclusion criteria, 131 (51%) developed the composite outcome. In the adjusted multivariable analyses, high (>3.4%) relative to low nursing overtime ratios (⩽3.4%) were not associated with the composite outcome (relative risk (RR): 0.93; 95% confidence interval (CI): 0.86 to 1.02). High nursing provision ratios (>1) were associated with a lower risk of the composite outcome relative to low ones (⩽1) (RR: 0.81; 95% CI: 0.74 to 0.90). NICU occupancy rates were not associated with the composite outcome (RR: 0.98; 95% CI: 0.89 to 1.07, high (>100%) vs low (⩽100%)). Days with high nursing provision ratios (>1) were also associated with lower risk of having medical incidents (RR: 0.91; 95% CI: 0.82 to 0.99). CONCLUSION: High nursing provision ratio during NICU hospitalization is associated with a lower risk of a composite adverse outcome in very preterm infants.


Asunto(s)
Ocupación de Camas/estadística & datos numéricos , Enfermedades del Prematuro/epidemiología , Unidades de Cuidado Intensivo Neonatal/estadística & datos numéricos , Personal de Enfermería/organización & administración , Admisión y Programación de Personal , Femenino , Humanos , Lactante , Mortalidad Infantil/tendencias , Recien Nacido con Peso al Nacer Extremadamente Bajo , Recien Nacido Extremadamente Prematuro , Recién Nacido , Enfermedades del Prematuro/mortalidad , Masculino , Quebec , Análisis de Regresión , Estudios Retrospectivos , Recursos Humanos
14.
Med Sante Trop ; 27(1): 40-43, 2017 Feb 01.
Artículo en Inglés | MEDLINE | ID: mdl-28132951

RESUMEN

Stingray injuries are very painful. Systemic analgesics are ineffective, and the use of local-regional anesthesia has been reported. This retrospective descriptive study reviewed all cases of stingray injuries seen at the emergency department of the Bouffard Hospital (Djbouti, Africa) between 2011 and 2014. The study included 35 patients. Most of the injuries (n= 31, 89%) concerned the lower limbs. Median pain intensity was 6 [5-8] on a visual analog scale of 0 (no pain) to 10. The following systemic medications were administered: acetaminophen to 13 (27%) patients, morphine to 8 (23%), and tramadol to 6 (17%). In all, 25 (71%) patients received local-regional anesthesia, 15 (60%) by injections at the ankle. All procedures were successful, and no adverse event was reported. This study reports clinical data about stingray injuries in the Red Sea area and highlights the interest of local-regional anesthesia in their management. Most of the procedures were distal and could be performed by trained emergency physicians.


Asunto(s)
Anestesia Local , Anestésicos Locales/uso terapéutico , Mordeduras y Picaduras/tratamiento farmacológico , Rajidae , Adulto , Anestesia de Conducción , Animales , Djibouti , Femenino , Hospitales , Humanos , Masculino , Estudios Retrospectivos
15.
JIMD Rep ; 28: 105-110, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-26563327

RESUMEN

Niemann-Pick type C (NPC) disease is a recessive disorder that results in unesterified cholesterol accumulating in the lysosomal and late endosomal system. It is caused by mutations in NPC1 or NPC2 genes and leads to systemic and neurodegenerative symptoms. Few cases of prenatal presentation of NPC have been reported and only two cases in the absence of previous family history, indicating the diagnosis is particularly difficult in such a situation. We report a prenatal diagnosis of NPC in a couple without family history. An ultrasound screening at 22 weeks of gestation (WG) detected fetal ascites and hepatomegaly, which were still present at 25, 27, and 29 WG, and a splenomegaly progressively appeared. No placentomegaly or other signs of hydrops fetalis were observed. The diagnostic of NPC was prenatally confirmed by a filipin test and NPC1 sequencing and multiplex ligation-dependent probe amplification assay which revealed a maternal missense mutation (c.2608T>C; p.Ser870Pro) and a paternal deletion of exons 5 to 25. This additional prenatal case of NPC suggests that even in the absence of family history, fetal ascites associated with splenomegaly but no hydrops should nonetheless arouse suspicion concerning this disease as a possible diagnosis.

16.
Transfus Clin Biol ; 22(1): 30-6, 2015 Mar.
Artículo en Francés | MEDLINE | ID: mdl-25595822

RESUMEN

INTRODUCTION: Knee arthroplasty causes significant blood loss. Different blood-saving measures exist like retransfusion of unwashed salvaged blood. Some studies question the quality of this blood and in particular its ability to clot. These studies use "static" coagulation tests reflecting only partially the reality, unlike viscoelastic methods. The main objective of this study was to evaluate the salvaged blood thromboelastometric profile using ROTEM® system and to compare these results with patient venous blood. MATERIALS AND METHODS: We performed an observational, prospective, single-center study conducted over 3 months in 2013. Agreement of local ethical committee and patient consent were obtained beforehand. All adult patients who underwent a primary total knee arthroplasty were included. A thromboelastometric profile and standard laboratory tests (hemoglobin, platelets count, PT, aPTT, fibrinogen) were performed in the same time on patient venous blood and on unwashed salvaged blood in the PACU. RESULTS: Twenty patients were included. The median duration of surgery was 93 minutes. Thirteen patients (65%) received tranexamic acid during procedure. The median volume of shed blood was 225 mL. Two patients (10%) received a reinfusion. Analysis of shed blood showed a major deficiency of clotting factor in standard biology (PT<10%) and an absence of clot formation in thromboelastometric test (In-tem®, Ex-tem®, Fib-tem® or Ap-tem®). Compared to venous blood, shed blood had significantly lower hemoglobin levels: 8.8 vs 13.5 g/dL (P<0.0001). Allogenic transfusion concerned 5% of patients. DISCUSSION: In this work, we confirmed that shed blood was naturally uncoagulable probably due to a multifactorial mechanism involving a major clot factor deficiency and an activation of fibrinolysis.


Asunto(s)
Artroplastia de Reemplazo de Rodilla , Tromboelastografía , Anciano , Femenino , Humanos , Masculino , Recuperación de Sangre Operatoria , Estudios Prospectivos , Venas
17.
Mol Ecol ; 23(3): 618-36, 2014 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24354713

RESUMEN

Unravelling the factors shaping the genetic structure of mobile marine species is challenging due to the high potential for gene flow. However, genetic inference can be greatly enhanced by increasing the genomic, geographical or environmental resolution of population genetic studies. Here, we investigated the population structure of turbot (Scophthalmus maximus) by screening 17 random and gene-linked markers in 999 individuals at 290 geographical locations throughout the northeast Atlantic Ocean. A seascape genetics approach with the inclusion of high-resolution oceanographical data was used to quantify the association of genetic variation with spatial, temporal and environmental parameters. Neutral loci identified three subgroups: an Atlantic group, a Baltic Sea group and one on the Irish Shelf. The inclusion of loci putatively under selection suggested an additional break in the North Sea, subdividing southern from northern Atlantic individuals. Environmental and spatial seascape variables correlated marginally with neutral genetic variation, but explained significant proportions (respectively, 8.7% and 10.3%) of adaptive genetic variation. Environmental variables associated with outlier allele frequencies included salinity, temperature, bottom shear stress, dissolved oxygen concentration and depth of the pycnocline. Furthermore, levels of explained adaptive genetic variation differed markedly between basins (3% vs. 12% in the North and Baltic Sea, respectively). We suggest that stable environmental selection pressure contributes to relatively strong local adaptation in the Baltic Sea. Our seascape genetic approach using a large number of sampling locations and associated oceanographical data proved useful for the identification of population units as the basis of management decisions.


Asunto(s)
Peces Planos/genética , Flujo Génico , Variación Genética , Genética de Población , Adaptación Fisiológica/genética , Animales , Océano Atlántico , Ambiente , Frecuencia de los Genes , Marcadores Genéticos , Genotipo , Repeticiones de Microsatélite , Mar del Norte , Selección Genética
18.
Med Sante Trop ; 23(2): 202-5, 2013 May 01.
Artículo en Francés | MEDLINE | ID: mdl-23803581

RESUMEN

Hernia repair is a very frequent surgical procedure; it is estimated that one African in five undergoes this procedure during his lifetime. Patients and methods. We evaluated the feasibility of this surgery under ilioinguinal and iliohypogastric nerve blocks in difficult environments. The medical-surgical group supporting Operation Unicorn has treated 48 inguinal hernias as medical aid to population, including 34 with these nerve blocks. Results. The block did not fail in any case. The mean time until discharge was 6.85 h, which meant that outpatient surgery was possible. Discussion and conclusion. This type of anesthesia is interesting in difficult environments. It is a safe, inexpensive, and easy to learn technique. These qualities should promote its use in countries with a low GNP.


Asunto(s)
Hernia Inguinal/cirugía , Herniorrafia/métodos , Bloqueo Nervioso , Adolescente , Adulto , Anciano , Niño , Preescolar , Estudios de Factibilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Adulto Joven
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