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martes, 14 de agosto de 2012

Indices de riesgo de trombosis venosa y tromboembolia pulmonar

Validación del riesgo de Caprini en la evaluación con pacientes de cirugía plástica
Validation of the Caprini risk assessment model in plastic and reconstructive surgery patients.
Pannucci CJ, Bailey SH, Dreszer G, Fisher Wachtman C, Zumsteg JW, Jaber RM, Hamill JB, Hume KM, Rubin JP, Neligan PC, Kalliainen LK, Hoxworth RE, Pusic AL, Wilkins EG.
Department of Surgery, University of Michigan, Ann Arbor, 48105, USA.
J Am Coll Surg. 2011 Jan;212(1):105-12. Epub 2010 Nov 18.
Abstract
BACKGROUND: The Venous Thromboembolism Prevention Study (VTEPS) Network is a consortium of 5 tertiary referral centers established to examine venous thromboembolism (VTE) in plastic surgery patients. We report our midterm analyses of the study's control group to evaluate the incidence of VTE in patients who receive no chemoprophylaxis, and validate the Caprini Risk Assessment Model (RAM) in plastic surgery patients. STUDY DESIGN: Medical record review was performed at VTEPS centers for all eligible plastic surgery patients between March 2006 and June 2009. Inclusion criteria were Caprini score ≥3, surgery under general anesthesia, and postoperative hospital admission. Patients who received chemoprophylaxis were excluded. Dependent variables included symptomatic deep vein thrombosis (DVT) or pulmonary embolism (PE) within the first 60 postoperative days and time to DVT or PE. RESULTS: We identified 1,126 historic control patients. The overall VTE incidence was 1.69%. Approximately 1 in 9 (11.3%) patients with Caprini score >8 had a VTE event. Patients with Caprini score >8 were significantly more likely to develop VTE when compared with patients with Caprini score of 3 to 4 (odds ratio [OR] 20.9, p < 0.001), 5 to 6 (OR 9.9, p < 0.001), or 7 to 8 (OR 4.6, p = 0.015). Among patients with Caprini score 7 to 8 or Caprini score >8, VTE risk was not limited to the immediate postoperative period (postoperative days 1-14). In these high-risk patients, more than 50% of VTE events were diagnosed in the late (days 15-60) postoperative period.
CONCLUSIONS: The Caprini RAM effectively risk-stratifies plastic and reconstructive surgery patients for VTE risk. Among patients with Caprini score >8, 11.3% have a postoperative VTE when chemoprophylaxis is not provided. In higher risk patients, there was no evidence that VTE risk is limited to the immediate postoperative period
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3052944/pdf/nihms237229.pdf
 
Trombosis venosa profunda: validación del índice pierna-informe (DVT-LSI)
Deep vein thrombosis: validation of a patient-reported leg symptom index.
Hudgens SA, Cella D, Caprini CA, Caprini JA.
Center on Outcomes, Research and Education, Evanston Northwestern Healthcare, 1001 University Place, Suite 100, Evanston, Illinois 60201, USA. shudgens@enh.org
Health Qual Life Outcomes. 2003 Dec 15;1:76.
Abstract
INTRODUCTION: Deep vein thrombosis (DVT) is a serious health problem that affects more than 2 million people annually in the United States. Many of these patients develop asymptomatic DVT, but months to years later may experience symptomatic post-thrombotic syndrome (PTS). It is not known how many cases of PTS can be traced to "asymptomatic" DVT because venography is no longer routinely done and ultrasonography (US) may miss some asymptomatic clots. As a result, a clinical tool in addition to US to detect symptom emergence or exacerbation in patients after DVT would be of value. METHODS: Seventy-seven patients hospitalized with an acute DVT interviewed by telephone at 3-7 days, 30-40 days, and 12-months following discharge were included in this report. All were treated with a standard anticoagulation "Clinical Pathway Protocol" between April 1999 and January 2000. Using a 14-item Deep Vein Thrombosis Leg Symptom Index (DVT-LSI), patients were queried regarding leg pain, swelling, skin discoloration, cosmetic appearance, activity tolerance, emotional distress, and leg-related sleep problems. RESULTS: The DVT-LSI for each leg was reliable at all assessments, with instrument reliability (alpha coefficients) greater than 0.70 at all time points (range 0.71-0.87). DVT-LSI scores, and the percentage of patients exhibiting symptoms, were higher in the DVT-affected leg at all time points. Among patients with unilateral disease, symptom severity ratings were significantly worse for patients in the affected leg compared to the normal leg at all time points, with the exception of those with a right-leg DVT at 12 months. Patients with bilateral thrombi did not have different scores on one leg compared to the other. CONCLUSION: The DVT-LSI is useful in assessing symptomatic clinical outcomes in patients after diagnosis of DVT, and may represent a surrogate marker for DVT otherwise presumed to be asymptomatic
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC317368/pdf/1477-7525-1-76.pdf
 
Trombosis venosa profunda y embolismo pulmonar. Prevención, tratamiento y consideraciones anestésicas 
Deep vein thrombosis and pulmonary embolism - Prevention, management, and anaesthetic considerations.
Narani KK.
Department of Anaesthesiology, Pain and Perioperative Medicine, Sir Ganga Ram Hospital, New Delhi - 110 060, India.
Indian J Anaesth. 2010 Jan;54(1):8-17.
Abstract
There is high incidence of venous thromboembolism, comprising of deep vein thrombosis and pulmonary embolism, in hospitalized patients. The need for systemic thromboprophylaxis is essential, especially in patients with inherited or acquired patient-specific risk factors or in patients undergoing surgeries associated with high incidence of postoperative deep vein thrombosis and pulmonary embolism. These patients, on prophylactic or therapeutic doses of anticoagulants, may present for surgery. General or regional anaesthesia may be considered depending on the type and urgency of surgery and degree of anticoagulation as judged by investigations. The dilemma regarding the type of anaesthesia can be solved if the anaesthesiologist is aware of the pharmacokinetics of drugs affecting haemostasis. The anaesthesiologist must keep abreast with the latest developments of methods and drugs used in the prevention and management of venous thromboembolism and their implications in the conduct of anaesthesia.
http://www.ijaweb.org/article.asp?issn=0019-5049;year=2010;volume=54;issue=1;spage=8;epage=17;aulast=Narani

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Anestesiología y Medicina del Dolor

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