Document Detail

Validation of the number connection test for identifying patients with minimal hepatic encephalopathy.
MedLine Citation:
PMID:  22876712     Owner:  NLM     Status:  In-Process    
OBJECTIVES: Hepatic encephalopathy is a serious neuropsychiatric complication in advanced liver disease. The affected patients exhibit alterations in psychomotor and intellectual functions. The aims of this study were to identif the set ofnormal values for the number connection tests (NCT-A and NCT-B) in a population of volunteers without liver disease, to compare the values from this reference population with those from patients with cirrhosis without hepatic encephalopathy.
MATERIALS AND METHODS: This study was performed in two referral hospitals in an urban setting from the city of La Plata. We evaluated the Number Connection Tests in 112 healthy subjects and 30 patients with cirrhosis without manifestations of hepatic encephalopathy. Time for performing the tests was measured in seconds. Results were compared according to age, gender, level of education and fine motor skills in both groups.
RESULTS: Mean age in the control group was 45.3years; 56 (50%) were women. Mean age in the cirrhotic group was 54.5 years; 8 (27%) were women. In the control group, the mean time for completing NCT-A and NCT-B was 60 s +/- 36s and 140 s +/- 60 s, respectively. In the cirrhotic group, the mean time for completing NCT-A and NCT-B was 114 s +/- 64 y 232 s +/- 87 s, respectively (P = 0.00001 for both tests). 56.6% of cirrhotic patients took more than 2 SD to perform the NCT-A and 53.3%, more than 2 SD to perform the NCT-B.
CONCLUSION: We have obtained reference values for NCT-A and NCT-B completing times in our healthy population. Cirrhotic patients without overt hepatic encephalopathy took double time than controls to complete NCT-A and NCT-B and over half of our patients would have minimal hepatic encephalopathy.
Raúl Adrover; Malena Barrio; María Malca Albuquerque; Juan Romé; Silvia Borzi; Daniel Cocozzella; Ezequiel Ridruejo; José Curciarello
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Acta gastroenterologica Latinoamericana     Volume:  42     ISSN:  0300-9033     ISO Abbreviation:  Acta Gastroenterol. Latinoam.     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-08-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0261505     Medline TA:  Acta Gastroenterol Latinoam     Country:  Argentina    
Other Details:
Languages:  eng     Pagination:  105-11     Citation Subset:  IM    
Unidad de Hígado, Sala de Gastroenterología, Hospital Interzonal San Roque, Gonnet, Prov de Buenos Aires, Argentina.
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