Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgery
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | São Paulo medical journal (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802005000200003 |
Resumo: | CONTEXT AND OBJECTIVE: Although it is generally agreed that a medical history and physical examination should be obtained as part of preoperative evaluation, there is still substantial controversy about the additional benefits of preoperative screening tests. The objective of the present study was to determine the percentage of abnormalities on laboratory tests among a population that underwent non-cardiac surgery and to correlate these tests with changes in preoperative evaluation management. DESIGN AND SETTING: Cross-sectional study, carried out in a University Hospital. METHODS: 991 patients aged over 40 years undergoing elective non-cardiac surgery from July 1997 to January 2000 were studied. Blood cell count, serum sodium, potassium, urea and creatinine, prothrombin, thrombin and partial thromboplastin time, electrocardiogram and chest X-ray were evaluated. RESULTS: Out of the 957 electrocardiograms performed, some type of abnormality was found in 504 cases (50.9%) and, among the 646 chest X-rays requested, 271 (42.0%) displayed alterations. Laboratory tests showed abnormal values ranging from 5.1% (prothrombin time) to 41.0% (hematocrit). Increased percentages of abnormal tests with increasing patient age were also observed. CONCLUSIONS: Although there were substantial numbers of screening test abnormalities in preoperative evaluations, these results seldom interfered in patient management. |
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Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgeryPreoperative careBlood testsRoutine diagnostic testsIntraoperative complicationsLaboratory techniques and proceduresCONTEXT AND OBJECTIVE: Although it is generally agreed that a medical history and physical examination should be obtained as part of preoperative evaluation, there is still substantial controversy about the additional benefits of preoperative screening tests. The objective of the present study was to determine the percentage of abnormalities on laboratory tests among a population that underwent non-cardiac surgery and to correlate these tests with changes in preoperative evaluation management. DESIGN AND SETTING: Cross-sectional study, carried out in a University Hospital. METHODS: 991 patients aged over 40 years undergoing elective non-cardiac surgery from July 1997 to January 2000 were studied. Blood cell count, serum sodium, potassium, urea and creatinine, prothrombin, thrombin and partial thromboplastin time, electrocardiogram and chest X-ray were evaluated. RESULTS: Out of the 957 electrocardiograms performed, some type of abnormality was found in 504 cases (50.9%) and, among the 646 chest X-rays requested, 271 (42.0%) displayed alterations. Laboratory tests showed abnormal values ranging from 5.1% (prothrombin time) to 41.0% (hematocrit). Increased percentages of abnormal tests with increasing patient age were also observed. CONCLUSIONS: Although there were substantial numbers of screening test abnormalities in preoperative evaluations, these results seldom interfered in patient management.Associação Paulista de Medicina - APM2005-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802005000200003Sao Paulo Medical Journal v.123 n.2 2005reponame:São Paulo medical journal (Online)instname:Associação Paulista de Medicinainstacron:APM10.1590/S1516-31802005000200003info:eu-repo/semantics/openAccessAjimura,Fábio YoshitoMaia,Alex Silva Santos FreireHachiya,AdrianaWatanabe,Alexandra SayuriNunes,Maria do Patrocínio TenórioMartins,Mílton de ArrudaMachado,Fábio Santanaeng2005-06-08T00:00:00Zoai:scielo:S1516-31802005000200003Revistahttp://www.scielo.br/spmjhttps://old.scielo.br/oai/scielo-oai.phprevistas@apm.org.br1806-94601516-3180opendoar:2005-06-08T00:00São Paulo medical journal (Online) - Associação Paulista de Medicinafalse |
dc.title.none.fl_str_mv |
Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgery |
title |
Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgery |
spellingShingle |
Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgery Ajimura,Fábio Yoshito Preoperative care Blood tests Routine diagnostic tests Intraoperative complications Laboratory techniques and procedures |
title_short |
Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgery |
title_full |
Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgery |
title_fullStr |
Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgery |
title_full_unstemmed |
Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgery |
title_sort |
Preoperative laboratory evaluation of patients aged over 40 years undergoing elective non-cardiac surgery |
author |
Ajimura,Fábio Yoshito |
author_facet |
Ajimura,Fábio Yoshito Maia,Alex Silva Santos Freire Hachiya,Adriana Watanabe,Alexandra Sayuri Nunes,Maria do Patrocínio Tenório Martins,Mílton de Arruda Machado,Fábio Santana |
author_role |
author |
author2 |
Maia,Alex Silva Santos Freire Hachiya,Adriana Watanabe,Alexandra Sayuri Nunes,Maria do Patrocínio Tenório Martins,Mílton de Arruda Machado,Fábio Santana |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Ajimura,Fábio Yoshito Maia,Alex Silva Santos Freire Hachiya,Adriana Watanabe,Alexandra Sayuri Nunes,Maria do Patrocínio Tenório Martins,Mílton de Arruda Machado,Fábio Santana |
dc.subject.por.fl_str_mv |
Preoperative care Blood tests Routine diagnostic tests Intraoperative complications Laboratory techniques and procedures |
topic |
Preoperative care Blood tests Routine diagnostic tests Intraoperative complications Laboratory techniques and procedures |
description |
CONTEXT AND OBJECTIVE: Although it is generally agreed that a medical history and physical examination should be obtained as part of preoperative evaluation, there is still substantial controversy about the additional benefits of preoperative screening tests. The objective of the present study was to determine the percentage of abnormalities on laboratory tests among a population that underwent non-cardiac surgery and to correlate these tests with changes in preoperative evaluation management. DESIGN AND SETTING: Cross-sectional study, carried out in a University Hospital. METHODS: 991 patients aged over 40 years undergoing elective non-cardiac surgery from July 1997 to January 2000 were studied. Blood cell count, serum sodium, potassium, urea and creatinine, prothrombin, thrombin and partial thromboplastin time, electrocardiogram and chest X-ray were evaluated. RESULTS: Out of the 957 electrocardiograms performed, some type of abnormality was found in 504 cases (50.9%) and, among the 646 chest X-rays requested, 271 (42.0%) displayed alterations. Laboratory tests showed abnormal values ranging from 5.1% (prothrombin time) to 41.0% (hematocrit). Increased percentages of abnormal tests with increasing patient age were also observed. CONCLUSIONS: Although there were substantial numbers of screening test abnormalities in preoperative evaluations, these results seldom interfered in patient management. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-03-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802005000200003 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802005000200003 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1516-31802005000200003 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Associação Paulista de Medicina - APM |
publisher.none.fl_str_mv |
Associação Paulista de Medicina - APM |
dc.source.none.fl_str_mv |
Sao Paulo Medical Journal v.123 n.2 2005 reponame:São Paulo medical journal (Online) instname:Associação Paulista de Medicina instacron:APM |
instname_str |
Associação Paulista de Medicina |
instacron_str |
APM |
institution |
APM |
reponame_str |
São Paulo medical journal (Online) |
collection |
São Paulo medical journal (Online) |
repository.name.fl_str_mv |
São Paulo medical journal (Online) - Associação Paulista de Medicina |
repository.mail.fl_str_mv |
revistas@apm.org.br |
_version_ |
1754209260943704064 |