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R B Bourne H Bitar P R Andreae L M Martin J B Finlay F Marquis 《Canadian journal of surgery》1988,31(1):43-45
Absorbable sutures are initially equal or superior to nonabsorbable sutures in terms of tensile strength but are absorbed at variable rates by the action of hydrolysis. This study demonstrated that the in-vivo half-life tensile strength of the braided absorbable sutures polyglycolic acid (Dexon Plus) and polyglactin 910 (Vicryl) is 2 weeks, whereas those of the monofilament absorbable sutures polyglyconate (Maxon) and polydioxanone (PDS) are 3 and 6 weeks respectively. The addition of a single hitch or six knots reduced the in-vitro tensile strength by 30% to 35%. Polyglyconate (Maxon) suture demonstrated the best in-vitro knot security. 相似文献
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F Cheliout-Heraut J M Vital J C Pouliquen Z Bitar L A Heraut 《Clinical neurophysiology》1989,19(4):297-310
The risk of serious neurologic complications in spinal surgery for scoliosis is not insignificant. The recording of cortical somatosensory evoked potentials (CSEP) is an electrophysiological method of monitoring during surgery. Measurement of CSEPs was carried out before, during and after surgery in a preliminary series of 33 patients. These recordings were made: after induction of anesthesia and exposure of the spine; after instrumentation but without correction; after maximum traction; and at termination of surgery. The aim of this work was to establish alarm criteria. Statistical analysis showed a significant increase in latencies after instrumentation without correction, and after maximum traction. The alarm criteria were determined as an increase of more than 5 msec in the first positive deflection associated with an unusual drop in amplitude (over 75%). If these anomalies persist, the "wake-up test" must be used. In practice, this monitoring has often aided in reducing the period of surgery by using the "wake-up test" in a few selected cases. 相似文献
4.
Recombinant VP9-based enzyme-linked immunosorbent assay for detection of immunoglobulin G antibodies to Banna virus (genus Seadornavirus) 总被引:1,自引:0,他引:1
Mohd Jaafar F Attoui H Gallian P Isahak I Wong KT Cheong SK Nadarajah VS Cantaloube JF Biagini P De Micco P De Lamballerie X 《Journal of virological methods》2004,116(1):55-61
Banna virus (BAV, genus Seadornavirus, family Reoviridae) is an arbovirus suspected to be responsible for encephalitis in humans. Two genotypes of this virus are distinguishable: A (Chinese isolate, BAV-Ch) and B (Indonesian isolate, BAV-In6969) which exhibit only 41% amino-acid identity in the sequence of their VP9.The VP7 to VP12 of BAV-Ch and VP9 of BAV-In6969 were expressed in bacteria using pGEX-4T-2 vector. VP9 was chosen to establish an ELISA for BAV, based mainly on two observations: (i). VP9 is a major protein in virus-infected cells and is a capsid protein (ii). among all the proteins expressed, VP9 was obtained in high amount and showed the highest immuno-reactivity to anti-BAV ascitic fluid.The VP9s ELISA was evaluated in three populations: French blood donors and two populations (blood donors and patients with a neurological syndrome) from Malaysia, representing the region where the virus was isolated in the past.The specificity of this ELISA was >98%. In mice injected with live BAV, the assay detected IgG-antibody to BAV infection 21 days post-injection, which was confirmed by Western blot using BAV-infected cells.The VP9 ELISA permits to determine the sero-status of a population without special safety precautions and without any requirements to propagate the BAV. This test should be a useful tool for epidemiological survey of BAV. 相似文献
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Paolo Gattuso Henry J. Carson Houssam Attal Melanie J. Castelli 《Diagnostic cytopathology》1995,13(3):257-259
Systemic spread of primary intracranial neoplasms is rare and may be due to ventriculoperitoneal shunt (VPS). The most common tumors to metastasize via VPS are germinoma of the pineal gland and medulloblastoma. We report a case of 16-yr-old girl with central nervous system malignant melanosis who developed subsequent peritoneal implants via VPS. To the best of our knowledge, this patient represents the third reported case of meningeal melanosis or melanoma which metastasized to the peritoneal cavity via VPS. The VPS should be considered as possible mode of systemic spread in patients with primary cranial malignancy. © 1995 Wiley-Liss, Inc. 相似文献
6.
Tarek Debs Niccolo Petrucciani Sebastian Frey Carine Korkmaz Katharina Hufschmidt Eric Sejor Houssam Eddine Bitar Imed Ben Amor Antonio Iannelli Jean Gugenheim 《Surgery for obesity and related diseases》2021,17(5):901-908
BackgroundBariatric surgery has become widely performed for treating patients with morbid obesity, and the age limits are being pushed further and further as the procedure proves safe. After massive weight loss, many of those patients seek body-contouring surgery for excess skin and fat.ObjectivesTo analyze the feasibility and the safety of abdominoplasty in patients older than 55 years old after bariatric surgery.SettingUniversity hospital medical center.MethodsWe performed a retrospective review of prospectively collected data from patients aged older than 55 years who had undergone abdominoplasty following massive weight loss due to a bariatric surgery at a single institution from 2004 to 2017. The data analyzed included age, gender, preoperative body mass index, associated interventions, co-morbidities, and postoperative complications.ResultsWe retrieved records for 104 patients; 85.6% percent of them were female, and the mean age was 60.1 ± 3.9 years old. Of the 104 patients, 21 (20.2%) underwent a sleeve gastrectomy and 77 (74%) underwent a Roux-en-Y gastric bypass. The mean interval between the bariatric surgery and the abdominoplasty was 33.6 ± 26.9 months. The mean preoperative weight and body mass index were 76.1 ± 14.5 kg and 28.9 ± 4.5 kg/m2, respectively. A total complication rate of 20% was observed. The only factor significantly associated with postoperative morbidity was the associated procedure (P = .03), when we performed another procedure at the same time as the abdominoplasty. Complications included postoperative bleeding in 5 patients (4.8%), seromas in 5 patients (4.8%), surgical site infections in 12 patients (11.5%), and wound dehiscence or ischemia in 2 patients (1.9%). No mortality occurred.ConclusionAbdominoplasty can be safely performed in carefully selected patients older than 55 years old after weight loss surgery, and does not present increased morbidity or mortality. We recommend that surgeons avoid adding concomitant procedures when possible, to decrease the risk of complications. It is also important to look at the patient’s previous maximum BMI levels, as a higher maximum BMI can predict higher postoperative risks and longer hospital stays. 相似文献
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Intra-Operative Direct Electrical Stimulations of the Central Nervous System: The Salpêtrière Experience With 60 Patients 总被引:6,自引:0,他引:6
Duffau H Capelle L Sichez J Faillot T Abdennour L Law Koune JD Dadoun S Bitar A Arthuis F Van Effenterre R Fohanno D 《Acta neurochirurgica》1999,141(11):1157-1167
Indications of surgical treatment for lesions in the central nervous system depend on the risk of a definitive neurological deficit, related to the benefit of resection. Detection of eloquent areas is then necessary because of major individual variability. Neuro-imaging functional techniques are in development and are beginning to be efficient for cortical sensorymotor mapping, but still lack sensitivity and specificity for language mapping, and remain unable to give real-time data during surgery and to perform sub-cortical mapping. The more precise and reliable method of functional mapping is represented by the intra-operative direct electrical stimulations (DES), which allow identification and preservation of essential pathways for motricity, sensibility and language, at each level of the central nervous system (cortico-subcortical). We report our experience of DES in the surgery of tumours and vascular malformations located in supra-tentorial brain eloquent areas, with a consecutive series of 60 patients operated on under general or local anaesthesia, from November 1996 until May 1999 in our department at La Salpêtrière Hospital. Presenting symptoms in the 60 subjects (39 males, 21 females, mean age: 45 years) were seizures in 37 cases with normal clinical examination, and mild neurological deficit in 29 cases. MRI showed 60 supra-tentorial brain lesions: 30 precentral, 12 postcentral, 14 perisylvian in the dominant hemisphere, 4 deep-seated. All subjects underwent surgical resection using DES, with supratentorial cortico-subcortical mapping under general anaesthesia for motor areas detection in 43 cases and under local anaesthesia for sensori-motor and/or language tasks in 17 cases. The final histological diagnosis was 44 gliomas (31 low-grade and 13 high-grade), 9 metastasis, 3 cavernomas, 4 arteriovenous malformations (AVM). Resection was total or subtotal in 52 cases (87%) and partial in 8 cases (13%). 29 patients had no post-operative deficit, while the other 31 patients were impaired post-operatively, with in all cases, except 3, a complete recovery delayed for 15 days to 3 months (overall morbidity: 5%). The median follow up was 14 months. Intra-operative direct electrical stimulations of the central nervous system constitute a reliable, precise and safe method, allowing the realization of a functional mapping useful for all operations of lesions located in eloquent areas. This technique allows a minimization of definitive post-operative neurological deficit, and concurrently an improvement in the quality of resection. 相似文献
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Bitar R Flores O Reverte M López-Novoa JM Macías JF 《International urology and nephrology》2000,32(2):165-169
This study analysed the effect of low doses ofverapamil added to chronic treatment withangiotensin-converting enzyme (ACE)
inhibitors onblood pressure and serum creatinine levels in eightelderly hypertensive patients who had a steadyincrease of
serum creatinine while on ACE inhibitors.The study was performed in eight elderly hypertensivesubjects, five men and three
women (mean age 70 ±2 years; systolic blood pressure 173 ± 4 mmHg; diastolic blood pressure 99 ± 1 mm Hg) andserum creatinine
of 1.60 ± 0.27 mg/dl beforetreatment. During an average of 25 weeks, ACEinhibitors significantly reduced both systolic anddiastolic
blood pressures, but serum creatinine levelswere increased over basal levels (0,68 ± 0,20 mg/dl, p < 0.05). During an average of 10 weeks,the addition of verapamil did not decrease bloodpressure further, but serum creatinine
levels werereduced to baseline. Our study suggests that theaddition of verapamil to ACE inhibitors can reverseACE-induced
increase in creatinine levels in elderlyhypertensive patients in whom this side effect isobserved.
This revised version was published online in August 2006 with corrections to the Cover Date. 相似文献