A Prospective Study of the Effect of Gastroduodenal Artery Reconstruction on Duodenal Oxygenation and Enzyme Content After Pancreas Transplantation.

BACKGROUND: Whole pancreas transplantation provides durable glycemic control and can improve survival rate; however, it can carry an increased risk of surgical complications. One devastating complication is a duodenal leak at the site of enteroenteric anastomosis. The gastroduodenal artery (GDA) supplies blood to the donor duodenum and pancreas but is commonly ligated during procurement. Since we have not had expressive changes in pancreatic back table surgical techniques in the recent decades, we hypothesized whether back table GDA reconstruction, improving perfusion of the donor duodenum and head of the pancreas, could lead to fewer surgical complications in simultaneous pancreas-kidney (SPK) transplants. MATERIAL AND METHODS: Between 2017 and 2021, we evaluated demographic information, postoperative complications, intraoperative donor duodenum, recipient bowel O2 tissue saturation, and patient morbidity through the Comprehensive Complication Index (CCI®). RESULTS: A total of 26 patients were included: 13 underwent GDA reconstruction (GDA-R), and 13 had GDA ligation (GDA-L). There were no pancreatic leaks in the GR group compared to 38% (5/13) in the GDA-L group (p = 0.03913). Intraoperative tissue oxygen saturation was higher in the GDA-R group than in the GDA-L (95.18 vs.76.88%, p < 0,001). We observed an increase in transfusion rate in GDA-R (p < 0.05), which did not result in a higher rate of exploration (p = 0.38). CCI® patient morbidity was also significantly lower in the GDA-R group (s < 0.05). CONCLUSIONS: This study identified improved intraoperative duodenal tissue oxygen saturation in the GDA-R group with an associated reduction in pancreatic leaks and CCI® morbidity risk. A larger prospective multicenter study comparing the two methods is warranted.

Autoantibodies to LG3 are associated with poor long-term survival after liver retransplantation.

Autoantibodies are detrimental to the survival of organ transplantation. We demonstrated that Angiotensin II Type I Receptor agonistic autoantibodies (AT1R-AA) were associated with poor outcomes after liver retransplantation. To examine the effect of other autoantibodies, we studied a retrospective cohort of 93 patients who received a second liver transplant. Pre-retransplant sera were tested with Luminex-based solid-phase assays. Among 33 tested autoantibodies, 15 were significantly higher in 48 patients who lost their regrafts than 45 patients whose regrafts were still functioning. Specifically, patients with autoantibodies to the C-terminal laminin-like globular domain of Perlecan (LG3) experienced significantly worse regraft survival (p = .002) than those with negative LG3 autoantibodies (LG3-A). In multivariate analysis, LG3-A (HR = 2.35 [1.11-4.98], p = .027) and AT1R-AA (HR = 2.09 [1.07-4.10], p = .032) remained significant predictors of regraft loss after adjusting for recipient age and sex. There were synergistic deleterious effects on regraft survival in patients who were double-positive for LG3-A and donor-specific antibody (DSA) (HR = 5.26 [2.15-12.88], p = .001), or LG3-A and AT1R-AA (HR = 3.23 [1.37-7.66], p = .008). All six double-positive patients lost their liver regrafts. In conclusion, LG3-A is associated with inferior long-term outcomes of a second liver transplant. Screening anti-HLA antibodies and autoantibodies such as LG3-A/AT1R-AA identifies patients with a higher risk for liver transplantation.

Angiotensin II type I receptor agonistic autoantibodies are associated with poor allograft survival in liver retransplantation.

Angiotensin II type I receptor (AT1R) agonistic autoantibodies (AT1R-AA) are detrimental to kidney transplantation. Early studies suggested a similar negative effect in primary liver transplantation. Here, we studied AT1R-AA in a retrospective cohort of 94 patients who received a second liver transplant to determine their prevalence and effects. The concentrations of preformed AT1R-AA before transplantation were higher (P = .019) in the 48 patients who lost their liver grafts than in the 46 patients whose grafts survived. About half (48/94, 51.1%) of the patients were positive for AT1R-AA >17 U/mL before the second liver transplantation. In 22 (23.4%) patients, strong positive AT1R-AA (defined as >40 U/mL) were detected, of whom 16 (72.7%) patients lost their grafts. Based on Kaplan-Meier analysis, patients with strong positive AT1R-AA had significantly worse graft survival than those with AT1R-AA <40 U/mL (P = .035). In multivariate Cox models that included confounders such as sex and age, either AT1R-AA >40 U/mL (HR = 1.999 [1.085-3.682], P = .026) or increased concentrations of AT1R-AA (HR = 1.003 [1.001-1.006] per incremental U/mL, P = .019) were significantly associated with elevated risk for graft loss. In conclusion, our data indicate that there is a high prevalence of AT1R-AA in candidates for second liver transplantation and that their presence is associated with inferior long-term outcomes of the second graft.

Care of victims of suicide bombing

Summary: Suicide bombers often target crowds. This commentary discusses the additional features required in a medical response beyond conventional mass casualty care, including forensic documentation, preservation of evidence, suspect tissue identification and viral status, victim counselling and postexposure prophylaxis. We propose a pathway for care of victims of a suicide bomb, adapting elements from protocols for child abuse, sexual assault and needle-stick exposure.

A novel REBOA system: prototype and proof of concept

Background: Lower torso hemorrhage is a significant cause of death from injuries in combat. Resuscitative endovascular balloon occlusion of the aorta (REBOA) has been used to rescue patients successfully in the hospital setting, but its prehospital use is controversial. We designed a device that would be easy to use, safer in injured vessels, migration-resistant and amenable to a prehospital environment. Methods: We designed a novel, balloon-led device using common commercial materials. Thin latex rubber was reassembled in cylindrical conformation aligned to the shape of the aorta and invaginated into vinyl tubing. The catheter is placed into the femoral vessel, followed by expression of the balloon with CO2 inflation in a proximal direction to navigate and treat damaged pelvic vasculature, occluding the distal aorta. The system was tested on model aortas (both intact and injured cadaveric porcine aorta) with inline fluid flow and pressure monitoring to determine the maximum pressure the balloons could occlude. The device was also tested on a perfused human cadaveric model. Results: Flow was occluded with the balloon up to an average of 561.1 ± 124.3 mm Hg. It always ruptured before causing damage to the porcine aorta and was able to occlude injured iliac vessels and proceed to occlude the distal aorta. The device was effective in occluding the distal aorta of a perfused human cadaver. Conclusion: This novel, high-volume, low-pressure device can occlude the distal aorta in a simulated human aorta model, cadaveric porcine model and perfused human cadaver. It can occlude fluid flow to supraphysiologic pressures. It is easy to use, migration-resistant, able to navigate and treat injured pelvic vessels, and amenable to prehospital care.

Contexte: L'hémorragie au bas du corps est une importante cause de décès suite aux blessures subies au combat. L'occlusion aortique endovasculaire par ballonnet a été utilisée avec succès comme mesure de réanimation chez des patients hospitalisés, mais son utilisation dans un contexte préhospitalier est controversée. Nous avons conçu un instrument qui serait facile à utiliser, plus sécuritaire en présence de vaisseaux lésés, peu sujet à migrer et adapté au contexte préhospitalier. Méthodes: Nous avons conçu un nouvel instrument guidé par ballonnet et fabriqué à l'aide de matériaux d'usage courant. Du caoutchouc de latex mince a été façonné en cylindre pour épouser la forme de l'aorte et introduit dans un tube de vinyle. Le cathéter est ensuite inséré dans la veine fémorale, après quoi il est gonflé avec du CO2 en direction proximale pour atteindre et traiter le réseau vasculaire pelvien et créer une occlusion aortique distale. Le système a été mis à l'essai sur des aortes modèles (aortes de cadavres de porcs intactes et lésées), avec surveillance interne du débit et de la pression pour déterminer la pression maximale contre laquelle le ballonnet est capable de créer l'occlusion. L'instrument a aussi été testé sur un modèle de cadavre humain perfusé. Résultats: Le ballonnet a permis l'occlusion à une pression moyenne pouvant atteindre 561,1 ± 124,3 mm Hg. Il s'est toujours rompu avant de pouvoir endommager l'aorte porcine et a permis l'occlusion des vaisseaux iliaques lésés et ensuite de l'aorte distale. L'instrument a permis l'occlusion efficace de l'aorte distale d'un cadavre humain perfusé. Conclusion: Ce nouvel instrument à fort volume et faible pression permet de créer l'occlusion de l'aorte distale dans un modèle simulé d'aorte humaine, dans un modèle de cadavre porcin et sur un cadavre humain perfusé. Il est facile à utiliser, peu susceptible de migrer; il se déploie et traite facilement les vaisseaux pelviens lésés et convient au contexte préhospitalier.

The Canadian Army Medical Corps affair of 1916 and Surgeon General Guy Carleton Jones.

SUMMARY: The rapid expansion of military medical service in the First World War, successfully completed under the direction of Surgeon General Guy Carleton Jones, remains an extraordinary achievement in Canada's history. In 1916, a conflict of personalities threatened confidence in the service. Eventually Prime Minister Sir Robert Borden's intervention restored the status quo, but the affair eclipsed Jones's outstanding career.

Utilization profile of the Canadian-led coalition Role 2 Medical Treatment Facility in Iraq: the growing requirement for multinational interoperability

Background: The Canadian Armed Forces deployed a Role 2 Medical Treatment Facility (R2MTF) to Iraq in November 2016 as part of Operation IMPACT. We compared the multinational interoperability required of this R2MTF with that of similar facilities previously deployed by Canada or other nations. Methods: We reviewed data (Nov. 4, 2016, to Oct. 3, 2017) from the electronic Disease and Injury Surveillance Report and the Daily Medical Situation Report. Clinical activity was stratified by Global Burden of Diseases category, ICD-10 code, mechanism of injury, services used, encounter type, nationality and blood product usage. We reviewed the literature to identify utilization profiles for other MTFs over the last 20 years. Results: In total, 1487 patients were assessed. Of these, 5.0% had battle injuries requiring damage-control resuscitation and/or damage-control surgery, with 55 casualties requiring medical evacuation after stabilization. Trauma and disease non-battle injuries accounted for 44% and 51% of patient encounters, respectively. Other than dental conditions, musculoskeletal disorders accounted for most presentations. Fifty-seven units of fresh frozen plasma and 64 units of packed red blood cells were used, and the walking blood bank was activated 7 times. Mass casualty activations involved coordination of health care and logistical resources from more than 12 countries. In addition to host nation military and civilian casualties, patients from 15 different countries were treated with similar frequency. Conclusion: The experience of the Canadian R2MTF in Iraq demonstrates the importance of multinational interoperability in providing cohesive medical care in coalition surgical facilities. Multinational interoperability derives from a unique relationship between higher medical command collaboration, international training and adherence to common standards for equipment and clinical practice.

Contexte: Les Forces armées canadiennes ont déployé une installation de traitement médical de rôle 2 (ITMR2) en Iraq en novembre 2016 dans le cadre de l'opération IMPACT. Nous avons comparé l'interopérabilité multinationale requise par cette ITMR2 à celle d'installations semblables déjà déployées par le Canada ou d'autres pays. Méthodes: Nous avons examiné les données (du 4 novembre 2016 au 3 octobre 2017) du rapport électronique de surveillance des maladies et des blessures et du rapport quotidien sur la situation médicale. L'activité clinique a été stratifiée selon la catégorie du fardeau mondial des maladies, le code de la CIM­10, le mécanisme de traumatisme, les services utilisés, le type de contact, la nationalité et l'utilisation de produits sanguins. Enfin, nous avons aussi examiné la littérature pour déterminer les profils d'utilisation d'autres ITM au cours des 20 dernières années. Résultats: Au total, 1487 patients ont été évalués. De ce nombre, 5,0 % avaient subi des blessures au combat qui nécessitaient une réanimation ou une intervention chirurgicale de contrôle des dommages, ou les deux, et 55 blessés avaient eu besoin d'évacuation médicale après stabilisation. Les traumatismes et les maladies non liées au combat représentaient respectivement 44 % et 51 % des contacts avec les patients. Outre les troubles dentaires, les troubles musculosquelettiques étaient à l'origine de la plupart des présentations. Par ailleurs, 57 unités de plasma frais congelé et 64 unités de concentré de globules rouges ont été utilisées, et la banque de sang ambulante a été activée 7 fois. La mobilisation nécessaire pour traiter un nombre massif de victimes a nécessité la coordination des soins de santé et des ressources logistiques de plus de 12 pays. En plus des victimes militaires et civiles du pays hôte, des patients de 15 pays différents ont été traités à une fréquence semblable. Conclusion: L'expérience de l'ITMR2 canadienne en Iraq démontre l'importance de l'interopérabilité multinationale quant à la prestation de soins médicaux cohérents dans les installations chirurgicales de la coalition. L'interopérabilité multinationale découle d'une relation unique s'appuyant sur la collaboration des membres du commandement médical supérieur, de la formation internationale et le respect de normes communes pour l'équipement et la médecine clinique.

Impact of traumatic upper-extremity amputation on the outcome of injury caused by an antipersonnel improvised explosive device

Background: We have previously reported a higher than expected rate of upper-extremity amputation (UEA) in victims of an antipersonnel improvised explosive device (AP-IED) compared with a similar cohort injured by antipersonnel mines (APM). The goal of this study was to describe the rate, severity and impact of UAE caused by an AP-IED. Methods: We analyzed a prospective database of 100 consecutive dismounted AP-IED victims with pattern 1 injuries to compare the outcomes of the cohort with UEA to that without. Results: We found that UEA (8 above elbow, 19 below elbow, 1 through elbow, 3 hand, 15 digit(s)) was much more prevalent with AP-IED than with APM (40% v. 6%, p < 0.001). In addition, UEA was associated with a higher rate of multiple amputations (39 [98%] v. 32 [53%], p < 0.001), bilateral lower-extremity amputation (LEA; 33 [82.5%] v. 30 [53.3%], p = 0.003) and facial injury (8 [20%] v. 4 [6.4%], p = 0.044), but not with pelvic disruption (10 [25%]), genitoperineal mutilation (19 [48%]), eye injury (6 [15%]), or skull fracture (6 [15%]). The fatality rate was higher in patients with UEA than in those without (12 [30%] v. 7 [12%], p = 0.022). Conclusion: Upper-extremity amputation is more prevalent with AP-IED than APM. Presence of UEA is associated with more severe injury and increased risk of death in AP-IED victims. Upper-limb injury has significant consequences for rehabilitation from LEA, which universally accompanies UEA in AP-IED victims. Upper-extremity injury should be amenable to prevention by innovative personal protective equipment designed to protect the flexed elbow.

Contexte: Nous avons déjà fait état d'un taux plus élevé que prévu d'amputations des membres supérieurs (AMS) chez les victimes d'engins explosifs artisanaux (EEA) comparativement à une cohorte similaire blessée par des mines antipersonnel (MAP). L'objectif de cette étude est de décrire le taux, la gravité et l'impact des AMS causées par des EEA. Méthodes: Nous avons analysé une base de données prospective de 100 victimes consécutives d'EEA alors qu'elles se trouvaient hors de leur véhicule et présentant des blessures de type 1 afin de comparer les résultats des cohortes ayant subi ou non des AMS. Résultats: Nous avons constaté que l'AMS (8 au-dessus du coude, 19 sous le coude, 1 au niveau du coude, 3 mains et 15 doigts) était beaucoup plus prévalente avec les EEA qu'avec les MAP (40 % c. 6 %, p < 0,001). De plus, l'AMS a été associée à un taux plus élevé d'amputations multiples (39 [98 %] c. 32 [53 %], p < 0,001), d'amputations bilatérales des membres inférieurs (AMI) (33 [82,5 %] c. 30 [53,3 %], p = 0,003) et de blessures au visage (8 [20 %] c. 4 [6,4 %], p = 0,044), mais non de blessures au bassin (10 [25%]), de mutilations génitopérinéales (19 [48 %]), de blessures oculaires (6 [15 %]), ou de fractures du crâne (6 [15 %]). Le taux de létalité a été plus élevé chez les patients ayant subi une AMS que chez ceux qui n'en ont pas subi (12 [30 %] c. 7 [12 %], p = 0,022). Conclusion: L'amputation des membres supérieurs est plus prévalente avec les EEA qu'avec les MAP. L'AMS est associée à des blessures plus graves et à un risque plus grand de décès chez les victimes d'un EEA. Les blessures aux membres supérieurs ont de graves conséquences sur la réadaptation nécessaire après l'AMI, qui accompagne presque toujours l'AMS chez les victimes d'un EEA. Les blessures aux membres supérieurs devraient pouvoir être évitées grâce à de l'équipement de protection individuelle novateur conçu pour protéger le coude fléchi.

After the war is over: the role of General Sir Arthur Currie in the development of academic medicine in Canada

Summary: Canadian universities faced a challenge with the return of a large cohort of battle-hardened students and faculty from the First World War. General Sir Arthur Currie, considered one of the few successful generals of the war, returned to a welcome of silence in Canada. McGill University exploited the opportunity to recruit him as its president. Currie oversaw a campaign of building construction and faculty development at McGill that also had a significant effect on the rest of Canada. Through his fostering of the Montreal Neurological Institute and the recruitment of Dr. Wilder Penfield, Currie facilitated the development of multidisciplinary medicine, which integrates clinical care with research ­ an aspiration still held by specialty medicine in Canada today.

Proposed specifications of a mobile operating room for far-forward surgery

Summary: Provision of initial surgery to casualties within one hour of injury is associated with better survival. Where evacuation options are limited, surgery within the "golden hour" may have to occur close to the point of injury. Interventions close to the point of injury are limited by the adverse environment. Far-forward surgery has a long history going back to Dominique Larrey of the Napoleonic Army. We reviewed previous reports and used our own experience of far-forward surgery to describe the specifications of the ideal mobile operating room that would address some of these environmental barriers.

Dual en bloc technique for adult renal transplantation.

INTRODUCTION: We describe and provide follow-up for a novel simplified technique permitting dual en bloc (DEB) transplantation of adult organs using single in situ arterial and venous anastomoses. METHODS: Twenty-two adult DEB transplants were performed at our center between 2001 and 2012, utilizing 44 kidneys en bloc. Results were compared with 20 solitary transplants from expanded criteria donors (ECD) associated with lower terminal serum creatinines and Remuzzi biopsy scores vs DEB group. Adult DEB implants had donor inferior vena cava connected to recipient external iliac vein and "Y" arterial interposition graft anastomosed to the recipient iliac artery. Ureters were conjoined prior to implantation as a single patch into the recipient bladder. RESULTS: Mean operative time was 206±57 minutes in DEB vs 180±30 minutes in single transplants (P<.05). Delayed graft function rate was 23% vs 25% in both groups. At 12-month follow-up, mean serum creatinine was 152±66 µmol/L vs in 154±52 µmol/L DEB and single kidney transplant recipients, respectively (P=NS). Three-year overall and graft specific survival were 86% and 84% in the DEB group, respectively (P=NS). Complication rates were similar between groups. CONCLUSIONS: This DEB renal transplantation technique is safe and effective in adults. By employing techniques used to conjoin organ vasculature ex vivo, the number of in situ anastomoses is reduced, thereby minimizing operative ischemic time and potential for complications associated with extensive vascular dissection.

Continuing a long tradition: the Canadian Journal of Surgery at 60.

SUMMARY: As 2017 marks the 60th anniversary of the Canadian Journal of Surgery, its editors in chief take a look back at the history leading to the creation of the journal and at how CJS maintains its original partnerships in order to continue its mission. Organized surgery has existed in Canada for more than 3 centuries. The CJS is the longest surviving of more than 20 journals reporting surgical endeavours. The editors rededicate its mission to the highest standard possible.

Calgary, Edmonton and the University of Alberta: the extraordinary medical mobilization by Canada's newest province.

SUMMARY: The Canadian contribution of medical services to the British Empire during the First World War was a national endeavour. Physicians from across the country enlisted in local regiments to join. No other region provided more physicians per capita than the newly formed province of Alberta. Largely organized through the Medical School of the University of Alberta, the No. 11 Canadian Field Ambulance out of Edmonton and the No. 8 Canadian Field Ambulance out of Calgary ultimately enlisted between one-third and half of the province's doctors to the war campaign. Many individuals from this region distinguished themselves, including LCol J.N. Gunn from Calgary, who commanded the No. 8 Canadian Field Ambulance; Maj Heber Moshier, one of the founders of the School of Pharmacy at the University of Alberta; and Dr. A.C. Rankin, who would go on to be the first Dean of Medicine at the University of Alberta. These Canadian heroes, and the many others like them who served with the No. 8 and 11 Field Ambulances, personify the sacrifice, strength and resilience of the medical community in Alberta and should not be forgotten.

First Canadian experience with donation after cardiac death simultaneous pancreas and kidney transplants.

BACKGROUND: Compared with neurologic determination of death (NDD) donor organs, donation after cardiac death (DCD) donor organs have traditionally been considered of inferior quality owing to warm ischemia experienced during procurement. We present, to our knowledge, the first analysis of simultaneous pancreas and kidney (SPK) transplants using DCD donor organs in Canada. METHODS: We carried out a retrospective cohort study of SPK transplants from 13 DCD and 68 NDD donors performed between October 2008 and July 2016. In all patients immunosuppression was induced with thymoglobulin and continued with tacrolimus, mycophenolate mofetil and prednisone maintenance therapy. RESULTS: Donor and recipient characteristics of DCD and NDD groups were similar with respect to age, sex, body mass index, kidney and pancreas cold ischemia times, and donor terminal creatinine. Mean DCD graft warm ischemia time was 0.5 (range 0.4-0.7) hours. Median follow-up was 2.2 (range 0.1-6.7) years and 2.7 (range 0.3-6.3) years for the DCD and NDD groups, respectively. The DCD and NDD groups were similar with regards to recipient percent panel reactive antibody and presence of human leukocyte antigen antibodies. The groups also received similar total doses of thymoglobulin. In total 38% of patients in the DCD group experienced renal delayed graft function (DGF) compared with 10% in the NDD group (p = 0.027). There were 7 cases of pancreas graft thrombosis requiring relaparotomy in the NDD group compared with none in the DCD group. No patients from either group required insulin at any time after transplant. Although the estimated glomerular filtration rate (eGFR) was lower in the DCD than the NDD group on postoperative days 7 and 14 (p = 0.025), no difference was noted on day 30 or through 4 years after transplant. No differences were seen between the groups with respect to amylase, lipase, or glycosated hemoglobin (HbA1c) up to 4 years after transplant, or in kidney, pancreas, or patient survival at any time after transplant. CONCLUSION: Our results show that, apart from a higher renal DGF rate, SPK transplants with DCD donor organs have comparable outcomes to standard transplants with NDD donor organs.

CONTEXTE: Comparativement aux organes prélevés après détermination de la mort cérébrale (ou détermination du décès neurologique [DDN]), les organes prélevés après détermination du décès cardiocirculatoire (DDC) sont en général considérés de moindre qualité en raison du phénomène d'ischémie chaude inhérent à ce type de prélèvement. Nous présentons, à notre connaissance, la première analyse sur la double greffe rein-pancréas effectuée avec des organes prélevés après DDC au Canada. MÉTHODES: Nous avons procédé à une étude de cohorte rétrospective sur les doubles greffes rein-pancréas effectuées entre octobre 2008 et juillet 2016, soit 13 après DDC et 68 après DDN. Chez tous les patients, l'immunosuppression a été induite par la thymoglobuline et a été maintenue au moyen d'un traitement d'entretien par le tacrolimus, le mycophénolate mofétil et la prednisone. RÉSULTATS: Les caractéristiques des donneurs et des receveurs des 2 groupes (DDC et DDN) étaient semblables sur les plans de l'âge, du sexe, de l'indice de masse corporelle, de la durée de l'ischémie froide du rein et du pancréas, et de la créatinine terminale (donneur). La durée moyenne de l'ischémie chaude des greffons prélevés après DDC a été de 0,5 (étendue : 0,4-0,7) heure. Le suivi médian a été d'une durée de 2,2 (étendue : 0,1-6,7) ans et de 2,7 (étendue : 0,3-6,3) ans, respectivement, pour les groupes DDC et DDN. Les 2 groupes étaient similaires pour ce qui est des pourcentages d'anticorps réactifs et de la présence d'anticorps anti-HLA (human leukocyte antigen) chez les receveurs. Les 2 groupes avaient aussi reçu des doses totales semblables de thymoglobuline. En tout, 38 % des patients du groupe DDC ont manifesté un retard de fonctionnement du greffon rénal, contre 10 % dans le groupe DDN (p = 0,027). On a dénombré 7 cas de thrombose du greffon pancréatique ayant nécessité une réintervention dans le groupe DDN, contre aucun dans le groupe DDC. Aucun des patients n'a eu besoin d'insuline après la transplantation. Le débit de filtration glomérulaire estimé (DFGe) était moins élevé dans le groupe DDC que dans le groupe DDN aux jours 7 et 14 (p = 0,025), mais on n'a plus noté de différence à ce chapitre au jour 30 ni au cours des 4 années suivant la greffe. On n'a observé aucune différence entre les groupes pour ce qui est de l'amylase, de la lipase ou de l'HbA1c jusqu'à 4 ans suivant la greffe, ni pour ce qui est de la survie des greffons rénaux ou pancréatiques ou celle des patients, peu importe le temps écoulé depuis la greffe. CONCLUSION: Selon nos résultats, si ce n'est un taux plus élevé de retard de fonctionnement du greffon rénal, les receveurs d'une double greffe rein-pancréas après DDC obtiennent des résultats semblables à ceux qui subissent une greffe standard d'organes prélevés après DDN.

Western University (No. 10 Canadian Stationary Hospital and No. 14 Canadian General Hospital): a study of medical volunteerism in the First World War.

SUMMARY: The Canadian government depended on chaotic civilian volunteerism to staff a huge medical commitment during the First World War. Offers from Canadian universities to raise, staff and equip hospitals for deployment, initially rejected, were incrementally accepted as casualties mounted. When its offer was accepted in 1916, Western University Hospital quickly adopted military decorum and equipped itself using Canadian Red Cross Commission guidelines. Staff of the No. 10 Canadian Stationary Hospital and the No. 14 Canadian General Hospital retained excellent morale throughout the war despite heavy medical demand, poor conditions, aerial bombardment and external medical politics. The overwhelming majority of volunteers were Canadian-born and educated. The story of the hospital's commanding officer, Edwin Seaborn, is examined to understand the background upon which the urge to volunteer in the First World War was based. Although many Western volunteers came from British stock, they promoted Canadian independence. A classical education and a broad range of interests outside of medicine, including biology, history and native Canadian culture, were features that Seaborn shared with other leaders in Canadian medicine, such as William Osler, who also volunteered quickly in the First World War.

The benefits and risks of requiring researchers to share data.

SUMMARY: The International Committee of Medical Journal Editors has sponsored many developments in medical research reporting that have improved the quality of research. Their proposal to require a statement by researchers regarding the availability of underlying data for sharing has the potential for a significant advance in medical knowledge. The Canadian Journal of Surgery supports the initiative and will develop mechanisms to support authors in meeting this new requirement.

[Les avantages et les risques d'exiger que les chercheurs partagent leurs données].

SUMMARY: Le Comité international des rédacteurs de revues médicales a rendu possibles de nombreuses avancées dans la communication des résultats de recherche médicale qui ont amélioré la qualité de la recherche. Sa proposition de demander aux chercheurs une déclaration sur l'accessibilité de données sousjacentes à partager pourrait faire grandement progresser les connaissances médicales. Le Journal canadien de chirurgie appuie l'initiative et élaborera des mécanismes visant à aider les auteurs à respecter cette nouvelle exigence.

Donation after cardiac death pediatric en bloc renal transplantation.

PURPOSE: Use of small pediatric kidneys obtained from extremely young donors after cardiac death has been limited. This potential organ source remains under used by transplant teams. MATERIALS AND METHODS: We reviewed all renal transplants at our institution from 2000 to 2013 to identify recipients of an en bloc pair of kidneys from deceased pediatric donors younger than 4 years. The outcomes of donation after cardiac death en bloc allografts were compared with neurological determination of death en bloc allografts. RESULTS: A total of 21 recipients of en bloc renal allografts were identified, of which 4 organ pairs were obtained through donation after cardiac death. Mean ± SD donor age was 20.6 ± 11.6 months and weight was 12.4 ± 3.7 kg. Delayed allograft function occurred in 2 of 4 recipients of allografts obtained from donation after cardiac death en bloc and 3 of 17 recipients of allografts from neurological determination of death en bloc. One year after transplantation mean ± SD glomerular filtration rates were similar, at 80.7 ± 15.3 and 85.7 ± 33.4 ml/minute/1.73 m(2) in the cardiac and neurological allograft groups, respectively (difference not significant). Surgical complications occurred in 3 patients, and no allograft was lost to thrombosis. CONCLUSIONS: We report successful transplantation of a small cohort of pediatric en bloc kidneys obtained through donation after cardiac death from donors younger than 4 years. Outcomes at 1 year are comparable to those in neurological determination of death en bloc allograft recipients.