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1.
Transplant Proc ; 41(7): 2720-2, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19765416

ABSTRACT

OBJECTIVES: To define the prevalence of various ranges of the ratio of partial arterial oxygen tension to fraction of inspired oxygen (Pao(2)/Fio(2)) and to determine correlative and predictive variables of donor lung Pao(2)/Fio(2). MATERIAL AND METHODS: From the brain death database of Masih Daneshvari Hospital Organ Procurement Center, we extracted demographic data, cause of injury, patient clinical condition, and laboratory findings as independent data. Donor lung suitability was determined with an oxygen challenge test, with results of 400 mm Hg considered ideal; 300 to 399 mm Hg, good; 200 to 299 mm Hg, borderline; and less than 200 mm Hg, not acceptable. RESULTS: Using the Pao(2)/Fio(2) cutoff points, 6.7% of donor lungs were considered ideal; 26.7%, good; 40%, borderline; and 26.7%, unacceptable. Mean (SD; range) Pao(2)/Fio(2) was 266.6 (85.6; 110-460). The Pao(2)/Fio(2) was significantly correlated with age (r = -0.35; P = .02). After entering the study variables into a linear regression model, age (-2.3; P = .008) and sex (51.5; P = .04) were significant predictors of donor lung suitability (R(2) = 0.95; P < .001). CONCLUSION: Results of oxygen challenge tests demonstrated better suitability of lungs from male and younger brain-dead donors. This finding is independent of other variables including cause of brain death and clinical and paraclinical data.


Subject(s)
Brain Death/physiopathology , Lung Transplantation/physiology , Lung/physiopathology , Oxygen/metabolism , Age Factors , Female , Humans , Male , Oxygen Consumption , Regression Analysis , Retrospective Studies , Sex Characteristics , Tissue Donors/statistics & numerical data
2.
Transplant Proc ; 41(7): 2723-5, 2009 Sep.
Article in English | MEDLINE | ID: mdl-19765417

ABSTRACT

INTRODUCTION: The majority of transplantations depend solely on cadaveric organs. In recent years, special focus has been directed toward brain-dead patients in Iran, but it seems that there is limited information regarding the characteristics of cadaveric organ donation in our country. MATERIALS AND METHODS: This is a retrospective analysis of data of our Organ Procurement Unit (OPU), which is one of the most active organ procurement units in Iran. We incorporated the data on all organ donations from brain-dead patients between 2004 and 2008 into the present study. Demographic characteristics of the patients along with data regarding brain death and organ donation were extracted from already registered data on patients. RESULTS: Among 93 brain-dead patients registered in the database of the OPU, organs were retrieved from 85% (n = 79). Out of the 14 patients from whom no organ was retrieved, the cause for this failure was death before donation in 85% (n = 12). The numbers of donated organs varied between zero and six (mean +/- standard deviation = 3.1 +/- 1.7). The most donated organs in terms of frequency and count were: right kidney (n = 68; 73.1%), left kidney (n = 67; 72%), liver (n = 63; 67.7%), heart (n = 40; 43%), pancreas (n = 5; 5.4%), and lung (n = 4; 4.3%). DISCUSSION: The overall organ retrieval rate from brain-dead patients by this OPU was comparable to that of developed countries; however, we still believe we can improve this rate/scale.


Subject(s)
Brain Death , Tissue and Organ Harvesting/methods , Tissue and Organ Procurement/methods , Adolescent , Adult , Aged , Cadaver , Developed Countries/statistics & numerical data , Female , Heart , Humans , Iran , Kidney , Liver , Lung , Male , Middle Aged , Pancreas , Retrospective Studies , Tissue and Organ Procurement/statistics & numerical data , Young Adult
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