jueves, 25 de octubre de 2012

Complicaciones en neurocirugía

Complicaciones pulmonares en neurocirugía


Pulmonary complications in neurosurgical patients.
Guleria R, Madan K.
Indian J Neurosurg [serial online] 2012 [cited 2012 Oct 11];1:175-80.


Abstract
Pulmonary complications are a major cause of morbidity and mortality in neurosurgical patients. The common pulmonary complications in neurosurgical patients include pneumonia, postoperative atelectasis, respiratory failure, pulmonary embolism, and neurogenic pulmonary edema. Postoperative lung expansion strategies have been shown to be useful in prevention of the postoperative complications in surgical patients. Low tidal volume ventilation should be used in patients who develop acute respiratory distress syndrome. An antibiotic use policy should be put in practice depending on the local patterns of antimicrobial resistance in the hospital. Thromboprophylactic strategies should be used in nonambulatory patients. Meticulous attention should be paid to infection control with a special emphasis on hand-washing practices. Prevention and timely management of these complications can help to decrease the morbidity and mortality associated with pulmonary complications.
Keywords: Neurosurgery, post-operative, pulmonary complications
http://www.ijns.in/text.asp?2012/1/2/175/102299



Papel de la flora oral patógena en la neumonía postoperatoria después de cirugía cerebral.
Role of pathogenic oral flora in postoperative pneumonia following brain surgery.
Bágyi K, Haczku A, Márton I, Szabó J, Gáspár A, Andrási M, Varga I, Tóth J, Klekner A.
Department of Neurosurgery, Medical and Health Science Center, University of Debrecen, Debrecen, Hungary. bagyi@med.unideb.hu
BMC Infect Dis. 2009 Jun 29;9:104.
Abstract
BACKGROUND:
Post-operative pulmonary infection often appears to result from aspiration of pathogens colonizing the oral cavity. It was hypothesized that impaired periodontal status and pathogenic oral bacteria significantly contribute to development of aspiration pneumonia following neurosurgical operations. Further, the prophylactic effects of a single dose preoperative cefazolin on the oral bacteria were investigated. METHODS: A matched cohort of 18 patients without postoperative lung complications was compared to 5 patients who developed pneumonia within 48 hours after brain surgery. Patients waiting for elective operation of a single brain tumor underwent dental examination and saliva collection before surgery. Bacteria from saliva cultures were isolated and periodontal disease was scored according to type and severity. Patients received 15 mg/kg cefazolin intravenously at the beginning of surgery. Serum, saliva and bronchial secretion were collected promptly after the operation. The minimal inhibitory concentrations of cefazolin regarding the isolated bacteria were determined. The actual antibiotic concentrations in serum, saliva and bronchial secretion were measured by capillary electrophoresis upon completion of surgery. Bacteria were isolated again from the sputum of postoperative pneumonia patients. RESULTS: The number and severity of coexisting periodontal diseases were significantly greater in patients with postoperative pneumonia in comparison to the control group (p = 0.031 and p = 0.002, respectively). The relative risk of developing postoperative pneumonia in high periodontal score patients was 3.5 greater than in patients who had low periodontal score (p < 0.0001). Cefazolin concentration in saliva and bronchial secretion remained below detectable levels in every patient. CONCLUSION: Presence of multiple periodontal diseases and pathogenic bacteria in the saliva are important predisposing factors of postoperative aspiration pneumonia in patients after brain surgery. The low penetration rate of cefazolin into the saliva indicates that its prophylactic administration may not be sufficient to prevent postoperative aspiration pneumonia. Our study suggests that dental examination may be warranted in order to identify patients at high risk of developing postoperative respiratory infections
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2709628/pdf/1471-2334-9-104.pdf





Incidencia de complicaciones tromboembólicas en cirugía de columna lumbar en 1,111 pacientes


Incidence of thromboembolic complications in lumbar spinal surgery in 1,111 patients.
Nicol M, Sun Y, Craig N, Wardlaw D.
Department of Orthopaedics, Grampian Hospitals NHS Trust, Aberdeen, UK. malcolmnicol@hotmail.com
Eur Spine J. 2009 Oct;18(10):1548-52. Epub 2009 May 30.
Abstract
Deep venous thrombosis (DVT) and pulmonary embolism (PE) cause significant morbidity and mortality in orthopaedic surgical practice, although the incidence following surgery to the lumbosacral spine is less than following lower limb surgery. Our objective was to compare our rate of thromboembolic complications with those published elsewhere and investigate whether the adoption of additional pharmacological measures reduced the incidence of clinically evident DVT and PE. This retrospective study was undertaken to investigate the incidence of DVT/PE during the 10 years from 1 January 1985 to 31 December 1994, and then to assess the effectiveness of an anticoagulant policy introduced during 1995 using low dose aspirin or LMH in high risk cases. All records for spinal operations were reviewed for thrombo-embolic complications by reference to the Scottish Morbidity Record form SMR1. To ensure that all patients were compliant with the policy, data for the whole of 1995 was omitted and the period 1 January 1996 to 31 December 2003 was taken to assess its effectiveness. Surgery was done with the patient in the kneeling, seated prone position which leaves the abdomen free and avoids venous kinking in the legs. Records of a total of 1,111 lumbar spine operations were performed from 1 January 1985 to 31 December 2004 were reviewed. The overall incidence of thrombo-embolic complications was 0.29%. A total of 697 operations were performed from 1 January 1985 to 31 December 1994 with two cases of DVT and no cases of PE giving thromboembolic complication rate of 0.29%. During the period 1 January 1996 to 31 December 2003, 414 operations resulted in one case of DVT and no cases of PE, a rate of 0.24%. The incidence of symptomatic thrombo-embolic complications in lumbar spinal surgery is low in the kneeling, seated prone operating position, whether or not anticoagulation is used
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2899370/pdf/586_

2009_Article_1035.pdf



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Anestesiología y Medicina del Dolor
www.anestesia-dolor.org


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