102,207 research outputs found
Enhanced spatial resolution of commercial soft X-ray CCD detectors by single-photon centroid reconstruction: Technical Note
No full textThe spatial resolution achieved in many back-illuminated Charge Coupled Device (CCD) x-ray detectors is limited by the charge spread over the pixels. For low flux measurements charge-cloud centroiding methods can achieve sub-pixel spatial resolution. Experimental measurements have been performed testing the performance of commercially available soft x-ray CCD detectors (Amorese et al., 2019). In this technical note the centroiding methods used and the numerical tests performed to test the method are described. Finally, more advanced corrective algorithms are discussed
Laparoscopic robot-assisted major hepatectomy.
No full textBACKGROUND:
We herein present a systematic review of English literature on robot-assisted major hepatectomy (MH).
METHODS:
Major hepatectomy was defined as resection of three or more liver segments. A literature search was performed using the Pubmed database. Articles containing more than five robotic MH were selected. In case of multiple publications from the same institution, only the most recent article was considered in order to avoid double counting of patients between series.
RESULTS:
Five articles were included in this review. A total of 68 robotic MH were analyzed, including 38 right hepatectomies and 30 left hepatectomies. There were no deaths. Two right hepatectomies (5.2%) and one left hepatectomy (3.3%) were converted to open surgery. Weighted average of operative time and intraoperative blood loss were 418.6 min and 411.4 ml, respectively. Four patients received blood transfusions (6.3%) and 17 developed postoperative complications (26.9%). Information on tumor type were available for 57 patients of whom 42 were diagnosed with malignant tumors (73.6%) and 15 with benign diseases (26.3%). No port site metastasis, peritoneal carcinomastosis, or intrahepatic recurrence were reported. Three patients had microscopic margin positivity.
CONCLUSIONS:
Major hepatectomy can be performed under robotic assistance. Further experience is needed before final conclusions can be drawn
Laparotomic sub-total gastrectomy under awake thoracic epidural anaesthesia: a successful experience.
No full textSurgical techniques for pancreas transplantation
No full textPurpose of review Pancreas transplantation reproducibly induces insulin independence in beta-cell penic diabetic patients. The difference between full insulin independence, partial graft function, and graft loss, mostly results from technical failure, graft rejection, and patient death with function graft. The purpose of this review is to examine recent Surgical advances and discuss their contribution to improved graft function. Recent findings Few actual surgical innovations were described in the period reviewed. Duodenoduodenostomy is an interesting option for drainage of digestive secretions, when the pancreas is placed behind the right colon and is oriented cephalad. The main advantage of this technique is easy endoscopic assessment of donor duodenum but, when allograft pancreatectomy is necessary, repair of native duodenum may be troublesome. Selective revascularization of the gastroduodenal artery, at the back-table, possibly improves blood supply to the head of the pancreas graft and duodenal segment. There is no proof that this additional maneuver is always beneficial, although it can be graft saving in case of poor segmental graft perfusion. Summary Transplant surgeons should be familiar with all techniques for pancreas transplantation. Long-term graft function is possible only after technically successful pancreas transplantation. There is clearly a need for more objective assessment and standardization of surgical techniques for pancreas transplantation
Educación para la salud a pobladores del área departamental de Maipú
No full textFil: Sicilia, A..
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Martínez, G..
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: García Crimi, Graciela Edith.
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: García Cardoni, Mario Oscar.
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Hellwing, G..
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Marzán, G..
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Amorese, M..
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Manini, P..
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Rincón, C..
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Sales, C..
Universidad Nacional de Cuyo. Facultad de OdontologíaFil: Palmili, Rodrigo.
Universidad Nacional de Cuyo. Facultad de Odontologí
Kidney Transplant Recipient Surgery
No full textThe first successful kidney transplantation between identical twins, performed in Boston in 1954, opened the clinical transplant era. Ever since, kidney transplantation has become one of the milestones of the recent history of medicine, whilst saving millions of lives. Although the nature of this extraordinary accomplishment is multifactorial, the successful outcome of a renal transplant begins with an impeccable surgery. This chapter will illustrate the state of the art of kidney transplant surgery in the recipient
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