Reliable integrative assessment of health care needs in elderly persons: the INTERMED for the Elderly (IM-E)

Objective

With the increasing prevalence of multiple conditions in older age, the high prevalence of mental disorders, and the many social challenges facing elderly people, a high-risk patient group in need of interdisciplinary (biological, psychological, and social) care is emerging. The INTERMED interview is an integrative assessment method that identifies patients with complex health care needs. The aim of this study was to develop and evaluate the INTERMED for the Elderly (IM-E), specifically for use in populations of elderly persons.

Methods

In focus groups conducted with the authors of the original INTERMED, the variables and anchor points that had to be adjusted to the needs and situation of the elderly and to the demands of a population-based study were discussed and altered. The final version of the IM-E was conducted with 42 elderly persons. Participants were doubly scored by two trained raters; the interrater reliability [intraclass correlation coefficient (ICC) (2,1)] was calculated.

Results

The IM-E was well accepted by the elderly persons interviewed. ICCs for the various domains of the IM-E ranged between .87 and .95, while the ICC for the sum score was .95. Regarding the cutoff point of 20/21 for patients with complex health care needs, a κ of .75 was achieved.

Conclusions

The IM-E is a reliable integrative assessment instrument. It is well suited for epidemiological settings to adequately describe the percentage of elderly patients with complex health care needs. In clinical settings, it can be used to identify elderly patients in need of interdisciplinary care.     

Studying psychosocial adaptation to end-stage renal disease: the proximal-distal model of health-related outcomes as a base model

Objective

Studying psychosocial adaptation in end-stage renal disease (ESRD) is increasingly important, as it may explain the variability in health outcomes unaccounted for by clinical factors. The Brenner et al. proximal-distal model of health-related outcomes provides a theoretical foundation for understanding psychosocial adaptation and integrating health outcomes, clinical, and psychosocial factors (Brenner MH, Curbow B, Legro MW. The proximal-distal continuum of multiple health outcome measures: the case of cataract surgery. Med Care. 1995;33(4 Suppl):AS236-44). This study aims to empirically validate the proximal-distal model in the dialysis population and examine the impact of psychosocial factors on the model.

Methods

A cross-sectional observational study was conducted with a sample of long-term dialysis patients (n=201). Eleven factors: quality of life (QoL), depression, positive affect, comorbidity, symptoms, physical functioning, disease accommodation, loss, self-efficacy, illness acceptance, and social support were measured by standardized psychometric scales. A three-month average of hemoglobin was used. Latent composite structural equation modeling was used to examine the models.

Results

The proximal-distal model with slight modification was supported by fit statistics [χ²=16.04, df=13, P=.25, root mean square error of approximation (RMSEA)=0.024], indicating that the impact of clinical factors on QoL is mediated through a range of functional and psychological factors, except for hemoglobin which impacts directly on QoL. The model with additional psychosocial factors was also supported by fit statistics (χ²=43.59, df=41, P=.36, RMSEA=0.018). These additional factors mainly impact on symptom status, psychological states, and QoL components of the model.

Conclusion

The present study supported the proximal-distal model in the dialysis population and demonstrated the considerable impact of psychosocial factors on the model. The proximal-distal model plus psychosocial factors as a biopsychosocial model can be applied to studying psychosocial adaptation in ESRD.     

Psychological and behavioral factors in patients with comorbid obstructive sleep apnea and insomnia

Objective

Insomnia symptoms in patients with obstructive sleep apnea (OSA) are commonly assumed to be secondary to respiratory disturbances. Previous studies, however, showed that insomnia might persist after treatment for OSA. Higher levels of emotional disturbances were reported in OSA patients with insomnia than those without insomnia, which suggests that psychological factors may play an important role for their sleep difficulties. This study aimed to further explore sleep-related psychological/behavioral factors that may contribute to insomnia in OSA patients.

Methods

This study included 88 men, of which 33 had OSA (OSA group); 29, primary insomnia; (Insomnia group); and 26, both OSA and insomnia (OSA+Insomnia group). All subjects underwent polysomnography (PSG) overnight and completed a package of questionnaires, including the Insomnia Severity Index (ISI), Dysfunctional Beliefs and Attitudes about Sleep Scale (DBAS), Sleep Hygiene Practice Scale (SHPS), Beck Anxiety Inventory (BAI), Beck Depression Inventory (BDI), and Pre-Sleep Arousal Scale (PSAS).

Results

The OSA+Insomnia and Insomnia groups had significantly more dysfunctional sleep beliefs, more arousal-inducing sleep-related behaviors, and higher levels of pre-sleep arousal, anxiety, and depression than did the OSA group. The respiratory indices and arousal index were higher for OSA and OSA+Insomnia groups than for the Insomnia group.

Conclusion

Although OSA patients with insomnia showed a similar degree of respiratory disturbances as patients with OSA only, their psychological and behavioral profiles resembled the features of primary insomnia patients. The results support the concept of comorbid insomnia and suggest the importance of evaluating and treating both physiological and psychological factors in these patients.     

Echocardiographic assessment of pulmonary arterial pressure in the follow-up of patients with pulmonary embolism

Background

Echocardiography remains a clinically useful screening test for chronic thromboembolic pulmonary hypertension (CTEPH) in patients with a history of pulmonary embolism (PE). To devise an effective screening strategy, the definition of a high-risk group is necessary.

Methods

We examined a total of 744 patients with acute symptomatic pulmonary embolism (PE) who were enrolled in a Spanish multicenter study. Patients were monitored every 6 months during the first two years, and then once a year thereafter. Transthoracic echocardiography was used to screen patients with a clinical suspicion of CTEPH during follow-up. Pulmonary arterial hypertension was defined as an estimated pulmonary artery systolic pressure (PAP) > 50 mm Hg. The index thromboembolic episode was considered severe if: (a) the patient was immobilized for medical reasons; or (b) systolic blood pressure was less than 90 mm Hg; or (c) troponin T values were above the reference range.

Results

The incidence of PAP > 50 mm Hg at 36 months was 8.3% (95% confidence interval = 4.6%-14.5%). Statistical analysis showed a highly significant association between a severe index thromboembolic episode and the subsequent detection of PAP > 50 mm Hg on echocardiography, with high positive likelihood ratio (2.40) and negative predictive value (> 0.97).

Conclusions

Patients with a severe index thromboembolic episode would constitute a high-risk group for the development of CTEPH. This group of patients should be subjected to a strict follow-up protocol.     

Genetic determinants of response to aspirin: appraisal of 4 candidate genes

Introduction

Intersubject variability in platelet response to aspirin could be related to genetic factors that regulate platelet enzymes or receptors. This study evaluates the impact of the selected polymorphisms in the COX-1 gene, the CYP5A1 gene, the P2RY1 receptor gene, and the GPIIbIIIa receptor gene on platelet response to aspirin and risk of suffering from major adverse cardiovascular and cerebrovascular events (MACCE).

Materials and methods

192 Caucasian patients with stable coronary artery disease treated with daily aspirin were recruited and followed for 3 years. Platelet aggregation was measured by light transmission aggregometry with arachidonic acid (1.6 mM) and adenosine diphosphate (5, 10 or 20 μM) used as agonists. Genotyping was performed by standard PCR methods.

Results

Arachidonic acid-induced platelet aggregation was unaffected by the COX-1 22C/T and by the Pl^A1/A2 polymorphisms. However, carriers of the 1622 G/G genotype of the P2RY1 gene had significantly higher levels of arachidonic acid-induced platelet aggregation compared with non-carriers (AA 2.0%, AG 2.0% vs. GG 9.0%, p = 0.047). Carrying the 1622 G/G genotype increased the risk of inadequate platelet response to aspirin, defined as arachidonic acid-induced aggregation ≥ 20%, by a factor of 8.5 (1.4 - 53.3, p = 0.022) and the risk of 3-year MACCE by a factor of 7 (1.4 - 34.7, p = 0.017).

Conclusion

The 1622A/G mutation of the P2RY1 gene could contribute to inadequate platelet response to aspirin and is associated with an increased risk of suffering from MACCE.     

Safety of coronary artery bypass surgery during therapeutic oral anticoagulation

Introduction

Therapeutic (international normalized ratio, INR 2.0-3.5) oral anticoagulation (TOAC) is assumed to increase perioperative bleeding complications and a standard recommendation is to discontinue warfarin before coronary bypass grafting (CABG).

Materials and Methods

To assess the safety of TOAC we retrospectively analyzed consecutive patients (n = 270) with long-term warfarin therapy referred for CABG in two centers where TOAC strategy is employed. The main in-hospital outcomes of interest were death, stroke, acute myocardial infarction, new onset renal failure, resternotomy, and their composite. In the TOAC group of 103 patients CABG was performed during therapeutic oral anticoagulation and in the control group (81 patients) preoperative INR was lowered to a subtherapeutic (≤ 1.5) level.

Results

The patients in TOAC group were more often operated on an emergency basis (p = 0.02) and their EuroSCORE was higher (p = 0.02). There were no significant differences in the major outcome events or their composite (17.5 vs. 11.1%, p = 0.30) between the groups. Patients in the TOAC group had more postoperative blood loss (941 ± 615 vs. 754 ± 610 ml, p < 0.01) and received more fresh frozen plasma (2.8 ± 3.0 vs. 1.3 ± 2.4 units, p < 0.001), but transfused red blood cells (2.1 ± 2.8 vs. 2.1 ± 3.4 units) were comparable in the groups. Preoperative clopidogrel (OR 4.8, 95% CI 1.4-16.2, p = 0.01) and enoxaparin therapy (OR 2.6, 95% CI 1.1-6.5, p = 0.04) were the only significant independent predictors for any major adverse event.

Conclusions

Our study suggests that CABG is a safe procedure during TOAC with no excess bleeding or major complications. Prospective trials are needed to confirm this observation.     

Intravenous landiolol, a novel β(1)-adrenergic blocker, reduces the minimum alveolar concentration of sevoflurane in women

Study Objective

To investigate the effect of intravenous (IV) landiolol, a novel β₁-adrenergic blocker, on the minimum alveolar concentration (MAC) of sevoflurane in adult women.

Design

Prospective, randomized study.

Setting

University hospital.

Patients

42 ASA physical status 1 and 2 women, aged 24-57 years, who were scheduled to undergo elective abdominal surgery.

Interventions

Anesthesia was induced in all patients by vital capacity rapid inhalation induction of sevoflurane. In the landiolol group, administration of landiolol began when patients took a vital-capacity breath: 0.125 mg/kg/min for one minute and then 0.04 mg/kg/min. Normal saline was administered in the control group.

Measurements

MAC was determined by a technique adapted from the conventional up-down method.

Main Results

The MAC of sevoflurane was 2.2% ± 0.2% in the control group and 1.7% ± 0.2% in the landiolol group, a statistically significant difference (P = 0.0005).

Conclusions

IV landiolol reduces the MAC of sevoflurane in women by approximately 20%.     

Manipulative therapy for shoulder pain and disorders: expansion of a systematic review

Objective

The purpose of this study was to conduct a systematic review on manual and manipulative therapy (MMT) for common shoulder pain and disorders.

Methods

A search of the literature was conducted using the Cumulative Index of Nursing Allied Health Literature; PubMed; Manual, Alternative, and Natural Therapy Index System; Physiotherapy Evidence Database; and Index to Chiropractic Literature dating from January 1983 to July 7, 2010. Search limits included the English language and human studies along with MeSH terms such as manipulation, chiropractic, osteopathic, orthopedic, musculoskeletal, physical therapies, shoulder, etc. Inclusion criteria required a shoulder peripheral diagnosis and MMT with/without multimodal therapy. Exclusion criteria included pain referred from spinal sites without a peripheral shoulder diagnosis. Articles were assessed primarily using the Physiotherapy Evidence Database scale in conjunction with modified guidelines and systems. After synthesis and considered judgment scoring were complete, with subsequent participant review and agreement, evidence grades of A, B, C, and I were applied.

Results

A total of 211 citations were retrieved, and 35 articles were deemed useful. There is fair evidence (B) for the treatment of a variety of common rotator cuff disorders, shoulder disorders, adhesive capsulitis, and soft tissue disorders using MMT to the shoulder, shoulder girdle, and/or the full kinetic chain (FKC) combined with or without exercise and/or multimodal therapy. There is limited (C) and insufficient (I) evidence for MMT treatment of minor neurogenic shoulder pain and shoulder osteoarthritis, respectively.

Conclusions

This study found a level of B or fair evidence for MMT of the shoulder, shoulder girdle, and/or the FKC combined with multimodal or exercise therapy for rotator cuff injuries/disorders, disease, or dysfunction. There is a fair or B level of evidence for MMT of the shoulder/shoulder girdle and FKC combined with a multimodal treatment approach for shoulder complaints, dysfunction, disorders, and/or pain.     

Factor structure and concurrent/convergent validity of the modified somatic perception questionnaire and pain beliefs instrument

Objective

Our goal was to create a parsimonious combination of the Modified Somatic Perception Questionnaire (MSPQ) and the Pain Beliefs Screening Instrument (PBSI) through factorial structural analysis and to investigate the associations of the new scale (if unique) to disability, health condition, and quality of life report in patients with neck and low back pain scheduled for spine fusion surgery.

Methods

Factor analysis was used to refine all items within the 2 scales to 4 distinct factors: (1) somatic complaints of the head/neck, (2) somatic complaints of the gastrointestinal symptom, (3) pain beliefs and fear, and (4) self perception of serious problems. Each factor was assessed for concurrent validity with other well-established tools including the Deyo comorbidity index, the Short Form (SF)-36 mental and physical component subscales, and the Oswestry and Neck Disability Indices (ODI/NDI).

Results

The PBSI was fairly to moderately correlated with assessment tools of quality of life (SF-36) and disability assessment (ODI/NDI). Some of the items in the factor 1 from the MSPQ were slightly associated with the Deyo comorbidity index but not with the ODI/NDI.

Conclusions

The items from the MSPQ failed to associate with measures of quality of life and disability and thus may provide only marginal value when assessing the multidimensional aspects associated with neck and low back pain. The PBSI has moderate correlation with disability assessments. Neither tool was found to strongly correlate with disability measures or with SF-36 scales (mental and physical component subscales). Additional tools may be needed to further identify the dimensions associated with chronic pain patients.