No moderating impact of a medically unexplained etiology on the relationship between psychological profile and chronic pain

Objectives: The objective of the present study was to test the moderating impact of an unknown pain etiology on the relationship between psychological factors and chronic pain intensity and disability. Methods: N = 471 chronic pain sufferers presented to an online Cognitive Behavioral Therapy randomized control trial, known as the Pain Course. Participants’ etiology was classified as medically unexplained or medically explained via interview and self-reported data. Standardized psychological measures at baseline were used in a non-hierarchical cluster analysis, which allocated chronic pain participants into mutually exclusive groups. Results: Four distinct clusters were identified: Psychologically healthy, mild psychological distress, high psychological distress, and average. The profile with high psychological distress experienced the greatest pain intensity (mean: 6.44 (SD = 1.66)) and disability (mean: 17.53 (SD: 3.65)). This relationship was not moderated by preceding pain etiology being medically explained or unexplained (χ2 (3) = 0.45, p = 0.93 and χ2 (3) = 7.07, p = 0.07 respectively). Conclusion: These findings indicate that an unknown pain etiology has little role in altering the relationship between psychological factors and pain disability in individuals experiencing chronic pain. This suggests that the psychological association with pain disability and intensity experienced by people with medically unexplained symptoms is similar to people with medically explained symptoms

Whether chronic pain is medically explained or not does not moderate the response to cognitive-behavioural therapy

Objectives: To determine whether pain-related treatment outcomes, following an online Cognitive Behavioural Therapy (CBT)intervention for chronic pain, were moderated by the pain etiology of a medically explained or unexplained origin. Methods: Data were available from 471 participants who completed the online pain management program between March 2013 and August 2014. Participants' pain symptoms were classified as being medically explained symptoms (MES: n = 292)or medically unexplained symptoms (MUS: n = 222)via analysis of clinical data. Outcome variables were pain-related disability, average pain intensity, depression and anxiety. Results: Moderation analyses were non-significant for all dependent variables. Between group differences (CBT and control)were larger for depression in those classified with MES, compared with MUS (MUS: mean change = −3.50 [95% CI = −4.98 to −2.22]; MES: mean change = −5.72 [95% CI = −7.49 to −4.09]). However, between group differences were small for pain intensity (MUS: mean change = −0.03 [95% CI = −0.83 to 0.81]; MES: mean difference = −1.12 [95% CI = −1.84 to 0.40]). Conclusion: The therapeutic outcomes examined in this study associated with an online CBT program do not appear to be altered by whether the participants' pain symptoms are medically explained or unexplained

Effects of psychology and extragastrointestinal symptoms on health care use by subjects with and without irritable bowel syndrome

Background & Aims: There is controversy about whether psychological factors (anxiety and depression) increase health care seeking by patients with irritable bowel syndrome (IBS). We investigated whether psychological factors increase health care seeking by patients with IBS and the effects of extragastrointestinal (extra-GI) symptoms. Methods: We performed a population-based prospective study of health care use over a 12-year period in Sweden. From 2002 through 2006, 1244 subjects were selected randomly for an examination by a gastroenterologist and to complete questionnaires, including the Rome II modular questionnaire. Psychological factors were measured with the valid Hospital Anxiety and Depression scale and extra-GI symptoms were measured with a symptom checklist. Responses from 1159 subjects (57% female; mean age, 48.65 y) were matched with health records in 2016 (164 were classified as having IBS based on Rome II criteria). Results: The overall association between depression or anxiety and health care use varied in subjects with and without IBS at baseline. The presence of extra-GI symptoms strengthened the relationship between anxiety and depression and prospective psychiatric visits for subjects with IBS and without IBS (incidence rate ratio, 1.14–1.26). Extra-GI symptoms did not alter the association of anxiety or depression with use of GI or extra-GI health care. Conclusions: In a population-based study in Sweden, we found that individuals with high baseline anxiety or depression were more likely to seek psychiatric health care, but not GI or extra-GI health care, in the presence of extra-GI symptoms at baseline. Patients with IBS might benefit from more thorough assessments that examine extra-GI and psychological symptoms, to reduce health care utilization

Growth evaluation in infants with neonatal cholestasis Antropometria em crianças com colestase neonatal

BACKGROUD: Chronic liver diseases in childhood often cause undernutrition and growth failure. To our knowledge, growth parameters in infants with neonatal cholestasis are not available AIM: To evaluate the nutritional status and growth pattern in infants with intrahepatic cholestasis and extrahepatic cholestasis. PATIENTS AND METHODS: One hundred forty-four patients with neonatal cholestasis were followed up at the Pediatric Gastroenterology Service of the Teaching Hospital, State University of Campinas, Campinas, SP, Brazil, in a 23-year period, from 1980 to 2003. The records of these patients were reviewed and patients were classified into two groups, according to their anatomical diagnosis: patients with intrahepatic cholestasis - group 1, and patients with extrahepatic cholestasis - group 2. Records of weight and height measurements were collected at 4 age stages of growth, in the first year of life: 1) from the time of the first medical visit to the age of 4 months (T1); 2) from the 5th to the 7th month (T2); 3) from the 8th to the 10th month (T3); and 4) from the 11th to the 13th month (T4). The weight-by-age and height-by-age Z-scores were calculated for each patient at each stage. In order for the patient to be included in the study it was necessary to have the weight and/or height measurements at the 4 stages. Analyses of variance and Tukey's tests were used for statistical analysis. Repeated measurement analyses of variance of the weight-by-age Z-score were performed in a 60-patient sample, including 29 patients from group 1 and 31 patients from group 2. The height-by-age data of 33 patients were recorded, 15 from group 1 and 18 from group 2 RESULTS: The mean weight-by-age Z-scores of group 1 patients at the 4 age stages were: T1=-1.54; T2=-1.40; T3=-0.94; T4=-0.78. There was a significant difference between T2 X T3 and T1 X T4. The weight-by-age Z-scores for group 2 patients were :T1=-1.04; T2=-1.67; T3=-1.93 and T4=-1.77, with a significant difference between T1 X T2 and T1 X T4. The mean weight-by-age Z-scores also showed a significant difference between group 1 and group 2 at stages T3 and T4. The mean height-by-age Z-scores at the four stages in group 1 were: T1=-1.27; T2=-1.16; T3=-0.92 and T4=-0.22, with a significant difference between T3XT4 and T1XT4. The scores for group 2 patients were: T1=-0.93; T2=-1.89; T3=-2.26 and T4=-2.03, with a significant difference between T1XT2 and T1XT4. The mean height-by-age Z-scores also showed a significant difference between group 1 and group 2 at T3 and T4 CONCLUSION: The weight and height differences between the groups became significant from the 3rd measurement onward, with the most substantial deficit found in the extrahepatic group. In this group, there is evidence that the onset of weight and height deficit occurs between the first and second evaluation stages.<br>RACIONAL: As doenças hepáticas crônicas na infância freqüentemente levam à desnutrição e ao déficit de crescimento, sem haver referência de um padrão definido para colestase neonatal OBJETIVO: Avaliar o estado nutricional e o padrão de crescimento em crianças com colestase intra-hepática e colestase extra-hepática MATERIAL E MÉTODOS: Foram revistos os prontuários de 144 pacientes com colestase neonatal atendidos no Serviço de Gastroenterologia Pediátrica do Hospital de Clínicas da UNICAMP, Campinas, SP, durante o período de 1980 a 2003 e de acordo com o diagnóstico anatômico, classificados em dois grupos: grupo 1, pacientes com colestase intra-hepática e grupo 2, com colestase extra-hepática. Os valores de peso e estatura foram obtidos em quatro momentos: 1º) Na primeira consulta realizada até o 4º mês de vida, 2º) entre o 5º e o 7º mês, 3º) entre o 8º e o 10º mês e 4º) entre o 11º e 13º mês. Para cada paciente foi realizado o cálculo do Z-escore em relação ao peso para a idade e estatura para a idade nos momentos 1 a 4. Para o paciente ser incluído no estudo, era necessário ter as medidas de peso e/ou estatura nos quatro estágios. A estatística empregada foi a análise de variância e o teste de Tukey. Para análise de variância com medidas repetidas quanto ao escore-Z de peso para a idade, a amostra utilizada foi de 60 pacientes, sendo 29 do grupo 1 e 31 do grupo 2. Para estatura, a amostra utilizada foi de 33 pacientes, sendo 15 do grupo 1 e 18 do grupo 2. RESULTADOS: As médias dos escores-Z de peso para a idade nos quatro momentos da avaliação para os pacientes do grupo 1 foram: T1 =-1.54; T2 = -1.40; T3 = -0,94; T4 = -0.78, havendo diferença significante entre T2&times;T3 e entre T1&times;T4. Para os pacientes do grupo 2 foram: T1 = -1.04; T2 = -1.67; T3 =-1.93 e T4 = -1.77, havendo diferença significante entre T1&times;T2 e T1&times;T4. Houve também diferença significante entre as médias dos escores-Z de peso para a idade entre o grupo 1 e o grupo 2 no T3 e no T4. As médias dos escores-Z de estatura para idade nos quatro momentos da avaliação para os pacientes do grupo 1 foram: T1 = -1.27; T2 = -1.16; T3 = -0.92 e T4 = -0.22, havendo diferença significante entre T3XT4 e T1XT4. Para os pacientes do grupo 2 foram: T1 = -0.93; T2 = -1.89; T3 = -2.26 e T4 = -2.03, havendo diferença significante entre T1&times;T2 e T1&times;T4. Houve também diferença significante entre as médias dos escores-Z de estatura para a idade entre o grupo 1 e o grupo 2 no T3 e no T4 CONCLUSÕES: As diferenças de peso e estatura entre os grupos tornaram-se significantes a partir da terceira medida, sendo o déficit mais acentuado no grupo extra-hepático. Nesse grupo, há evidência de que o agravo pôndero-estatural se instala entre o primeiro e o segundo momento de avaliação