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291.
Enio Campos AMICO José Roberto ALVES Samir Assi JO?O Ricardo Wagner da Costa MOREIRA José Linhares da SILVA NETO Joafran Alexandre Costa de MEDEIROS 《Brazilian archives of digestive surgery》2014,27(4):268-271
Background
Due to their complexity and risks, mesenteric-portal axis resection and reconstruction during the pancreatectomy procedure were not recommended back in the early nineties. However, as per technical improvements and the reduction in morbidity and mortality rates, they have been routinely indicated in large medical centers.Aim
To show results from cases of patients subjected to mesenteric-portal axis resection during pancreatectomy.Method
Patients subjected to mesenteric-portal axis resection during pancreatectomy were prospectively and consecutively assessed. The procedure was indicated according to anatomical criteria defined by imaging exams or intraoperative assessment.Results
Ten patients, half of them were male, with mean age of 55.7 years (40-76) were included. The most frequent underlying diseases were pancreatic adenocarcinoma and Frantz tumor. The circumferential resection of the portal vein associated with the superior mesenteric vein with splenic vein ligature (4 cases=40%) and the primary anastomosis of the vascular stumps (5 cases=50%) were, respectively, the most performed types of vascular resection and reconstruction. Surgery time ranged from 480 to 600 minutes (average=556 minutes) and postoperative hospitalization time ranged from 9 to 114 days (average=34.8 days). Morbidity rate was 60%, and clinical pancreatic fistula (grade B and C) was the most common complication (3 cases=30%). Mortality rate was 10% (1 case).Conclusion
Mesenteric-portal axis resection is a valid technical procedure. It should be taken into account after a clinical assessment that included not only the patients'' clinical condition but also the technical and anatomical conditions of the mesenteric-portal axis tumor infiltration as well as life expectancy based on the patient''s cancer prognosis. 相似文献292.
Luz Marina Gon?alves de ARAúJO Leonardo Carvalho SERIGIOLLE Helbert Minuncio Pereira GOMES Daren Athiê Boy RODRIGUES Carolina Marques LOPES Pedro Luiz Squilacci LEME 《Brazilian archives of digestive surgery》2014,27(3):177-181
Background
The calculation of the volume ratio between the hernia sac and the abdominal cavity of incisional hernias is based on tomographic sections as well as the mathematical formula of the volume of the ellipsoid, which allows determining whether this is a giant hernia or there is a "loss of domain". As the images used are not exact geometric figures, the study of the volume of two solid organs of Wistar rats was performed to validate these calculations.Aim
To correlate two methods for determining the volume of the kidney and spleen of rats, comparing a direct method of observation of the volume with the mathematical calculation of this value.Methods
The volume of left kidney, geometrically more regular, and spleen, with its peculiar shape, of ten animals was established in cubic centimeters after complete immersion in water with the aid of a beaker graduated in millimeters. These values were compared with those obtained by calculating the same volume with a specific mathematical formula: V = 4/3 × π × (r1 x r2 x r3). Data were compared and statistically analyzed by Student''s t test. RESULTS: Although the average volume obtained was higher through the direct method (1.13 cm3 for the left kidney and 0.71 cm3 for the spleen) than the values calculated with the mathematical formula (0.81 cm3 and 0.54 cm3), there were no statistically significant differences between the values found for the two organs (p>0.05).Conclusion
There was adequate correlation between the direct calculation of the volume of the kidney and spleen with the result of mathematical calculation of these values in the animals'' studies. 相似文献293.
PAOLO ANDERLINI DONNA PRZEPIORKA YANG HUH JO LAUPPE PAULA MILLER JANICE SUNDBERG DAVID SEONG RICHARD CHAMPLIN & MARTIN KÖRBLING 《British journal of haematology》1996,93(4):940-942
Seventy-seven normal donors underwent leukapheresis for peripheral blood progenitor cell collection beginning on day 4 ( n = 45) or day 5 ( n = 32) of filgrastim mobilization (12 μg/kg/d). The two groups were comparable for age, weight, blood volumes processed during leukapheresis and target CD34+ cell dose to be collected. The day 5 schedule allowed a more consistent achievement of the target cell dose with one apheresis ( P = 0.005) and resulted in the initial collection of a significantly larger number of CD34+ cells ( P = 0.009). There was no statistically significant difference in the leukapheresis yield of lymphoid subsets and natural killer cells. 相似文献
294.
Hypovolemic shock resuscitation with hyperosmotic 7.5% NaCl: effects on respiratory system mechanics
M A Martins R N Younes C A Lin E M Negri R S Sakae W A Auler JO JúniorZin P H Saldiva 《Circulatory shock》1988,26(2):147-155
The infusion of the hypertonic 7.5% NaCl solution stimulates the afferent vagal innervation of the lungs. In order to verify if this reflex elicits any respiratory mechanical alterations, normovolemic (n = 18) and hypovolemic (n = 18) (20 ml of shed blood/kg) guinea pigs were studied. The animals were assigned to groups of nine receiving either isotonic 0.9% NaCl or hypertonic 7.5% NaCl solutions (4 ml/kg body weight). Passive respiratory system elastance (Ers) and the maximal value of the resistance (Rrsmax) were measured. The latter was further partitioned into its minimal value (Rrsu) using the constant flow inflation method. Ers, Rrsmax, Rrsmin, and Rrsu were measured before and at 0, 2, 5, 10, and 15 minutes following the infusion. The results showed that both isotonic and hypertonic solutions, at the given volume rate, caused no significant alterations of respiratory mechanics in normovolemic and hypovolemic animals. 相似文献
295.
A randomized placebo-controlled trial of recombinant human interleukin- 11 in cancer patients with severe thrombocytopenia due to chemotherapy 总被引:18,自引:3,他引:18
Tepler I; Elias L; Smith JW nd; Hussein M; Rosen G; Chang AY; Moore JO; Gordon MS; Kuca B; Beach KJ; Loewy JW; Garnick MB; Kaye JA 《Blood》1996,87(9):3607-3614
Thrombocytopenia is a complication of cancer treatment that can limit dose intensity. Interleukin-11 (IL-11) is a growth factor that increases platelet production. We conducted a multicenter, randomized, placebo-controlled trial of recombinant human IL-11 (rhIL-11) in 93 patients with cancer who had already been transfused platelets for severe thrombocytopenia resulting from chemotherapy. The patients had received platelet transfusions for nadir platelet counts of < or = 20,000/microL during the chemotherapy cycle immediately preceding study entry. Chemotherapy was continued during the study without dose reduction. Patients were randomized to receive placebo or rhIL-11 at 50 or 25 micrograms/kg subcutaneously once daily for 14 to 21 days beginning 1 day after chemotherapy. Eight of 27 (30%) evaluable patients treated with rhIL-11 at a dose of 50 micrograms/kg did not require platelet transfusions versus 1 of 27 (4%) patients who received placebo (P < .05). Five of 23 (18%) patients treated with rhIL-11 at 25 micrograms/kg avoided platelet transfusions (P = .23). Side effects were fatigue and cardiovascular symptoms, including a low incidence of atrial arrhythmias and syncope. There were no differences among treatment groups in the incidence of neutropenic fever, days of hospitalization, or number of red blood cell transfusions. This study shows that rhIL-11 treatment of a dose of 50 micrograms/kg significantly increases the likelihood that patients who have already been transfused platelets for severe chemotherapy-induced thrombocytopenia will not require platelet transfusions during a subsequent chemotherapy cycle. 相似文献
296.
Autologous bone marrow transplantation in follicular non-Hodgkin's lymphoma before and after histologic transformation 总被引:3,自引:2,他引:3
Schouten HC; Bierman PJ; Vaughan WP; Kessinger A; Vose JM; Weisenburger DD; Armitage JO 《Blood》1989,74(7):2579-2584
Patients with disseminated follicular non-Hodgkin's lymphoma (NHL) are only occasionally cured with standard chemotherapy regimens. Although most of these tumors are initially responsive to chemotherapy, in 40% to 70% of patients the lymphoma will eventually transform to an NHL of higher grade malignancy and a poorer prognosis. We treated 18 patients having an original diagnosis of follicular NHL with high-dose therapy and autologous bone marrow transplantation. The lymphomas of 10 of the patients had already undergone histologic transformation and eight still had a follicular histologic pattern. The former group had been followed for a longer time from the diagnosis of NHL and had been more extensively treated with conventional chemotherapy regimens. All eight patients with follicular NHL at the time of transplantation are alive for 246+ to 1,804+ days and seven of the patients are in complete remission. In contrast, of the 10 patients in histologic transformation only 1 is alive and in CR. This reflects the inability of these patients to tolerate the high-dose chemotherapy and myelosuppression as well as resistance of their lymphoma to this therapy. This difference in survival between the two groups was highly significant (P = .002). We conclude that the outcome of patients with follicular NHL transplanted early before histologic transformation is better than for those who are transplanted later in the course of their illness. Because of the relapsing behavior of follicular NHL, a longer follow-up is necessary to prove any impact on the natural history of the disease. 相似文献
297.
298.
Veld PA; Weber RF; Los FJ; den Hollander N; Dhont M; Pieters MH; Van Hemel JO 《Human reproduction (Oxford, England)》1997,12(8):1642-1644
Two case histories are presented documenting structural chromosome
abnormalities in infertile males. The abnormalities were detected only
after application of intracytoplasmic sperm injection (ICSI) was repeatedly
unsuccessful or resulted in an abnormal pregnancy. A mosaic Robertsonian
translocation 45,XY,der(13;13)(q10; q10)/46,XY,t(13;13)(p10;p10),
der(13p;13p) incompatible with normal offspring was found in a male with
extreme oligozoospermia after three subsequent ICSI treatments were
unsuccessful and one had resulted in a spontaneous abortion. A second case
involved a Robertsonian translocation 45,XY,der(13;14)(q10;q10) which was
detected in a male with extreme oligozoospermia after ultrasound
abnormalities were found in an ICSI-induced twin pregnancy. Amniocentesis
showed an unbalanced 46,XY,+13,der(13;14)(q10;q10) karyotype in one twin
and a Robertsonian 45,XX,der(13;14)(q10;q10) karyotype in the other twin.
Chromosome analysis of males with abnormal sperm characteristics is advised
prior to ICSI.
相似文献
299.
MT FLORES L ANDERSSON JO ANDREASEN LK BAKLAND B MALMGREN F BARNETT C BOURGUIGNON A DIANGELIS L HICKS A SIGURDSSON M TROPE M TSUKIBOSHI T VON ARX 《Endodontic Topics》2006,14(1):102-110
Crown fractures and luxations occur most frequently of all dental injuries. An appropriate treatment plan after an injury is important for a good prognosis. Guidelines are useful for delivering the best care possible in an efficient manner. The International Association of Dental Traumatology (IADT) has developed a consensus statement after a review of the dental literature and group discussions. Experienced researchers and clinicians from various specialties were included in the group. In cases where the data did not appear conclusive, recommendations were based on the consensus opinion of the IADT board members. The guidelines represent the current best evidence, based on literature research and professional opinion. In this first article of three, the IADT Guidelines for management of fractures and luxations of permanent teeth will be presented. 相似文献