Microarray Profiling of Differentially Expressed Genes in Coronary Artery Bypass Grafts of High-Risk Patients with Postoperative Cognitive Dysfunctions

Postoperative cognitive dysfunction (POCD) is cognitive decline after surgery. The authors hypothesized that gene-level changes could be involved in the pathogenesis of POCD. The present study evaluated the incidence of POCD and its associated differentially expressed genes. This was a prospective cohort study conducted on high-risk coronary artery bypass graft patients aged 40 to 75 years. POCD classification was based on a one standard deviation decline in the postoperative scores compared to the preoperative scores. The differentially expressed genes were identified using microarray analysis and validated using quantitative RT-PCR. Forty-six patients were recruited and completed the study. The incidence of POCD was identified using a set of neurocognitive assessments and found to be at 17% in these high-risk CABG patients. Six samples were selected for the gene expression analyses (3 non-POCD and 3 POCD samples). The findings showed five differentially expressed genes in the POCD group compared to the non-POCD group. The upregulated gene was ERFE, whereas the downregulated genes were KIR2DS2, KIR2DS3, KIR3DL2, and LIM2. According to the results, the gene expression profiles of POCD can be used to find potential proteins for POCD diagnostic and predictive biomarkers. Understanding the molecular mechanism of POCD development will further lead to early detection and intervention to reduce the severity of POCD, and hence, reduce the mortality and morbidity rate due to the condition.

The Malay version of SF-36 health survey instrument: testing data quality, scaling assumptions, reliability and validity in post-coronary artery bypass grafting (CABG) surgery patients at the National Heart Institute (Institut Jantung Negara-IJN), Kuala Lumpur

BACKGROUND

The Short Form 36 (SF-36) is a scoring system comprising of 36 items categorized into eight constructs corresponding to patients' health-related quality of life. It has been used extensively in various countries on different sub-populations and used to indicate the health status and help to ascertain the effect of clinical interventions on the particular population.

OBJECTIVE

To examine the psychometric properties of the Malay version of SF-36 (Malay SF-36) summated rating scales and validate the scale among post-coronary artery bypass grafting surgery (CABG) patients at the National Heart Institute (IJN), Kuala Lumpur.

METHODS

Five hundred and nine post-CABG patients at the IJN, Malaysia completed the questionnaires between 1 July and 31 December 2017. Psychometric tests endorsed by the "International Quality of Life Assessment Project" were utilised.

RESULTS

The data quality was excellent with a high questionnaire completion rate (100%). As hypothesized, the ordering of item means within scales was clustered. In unison, scaling assumptions were satisfied. Good discriminant validity was shown between subsets of patients with various levels of health status. Notwithstanding, there were probably translation issues of the Physical Functioning scale which showed small ceiling effects. We clearly observed high ceiling and floor effects in both Role Physical and Role Emotional scale most probably attributed to the dichotomous style of their choice of responses. Cronbach alpha values of the eight scales ranged from 0.73 to 0.90, showing good internal consistency reliability. Confirmatory Factor Analysis (CFA) confirmed the 8-factor solution and Composite Reliability revealed internal consistency reliability except for Vitality and Social Functioning. Based on the Average Variance Extracted (AVE), convergent validity was adequate except for two domains. Discriminant Validity is good for the eight constructs as the √AVE are generally higher than the correlation coefficients between the latent constructs.

CONCLUSION

The scoring for the Malay SF-36 based on the summated ratings method was proven to be valid to be applied in our local clinical population. The CFA, fitness estimates, reliability and validity assessments suggest that the Malay version of SF36 is a valid and reliable instrument. However, further work is warranted to further refine the convergent validity and reliability of some scales.

Postoperative depression in patients after coronary artery bypass grafting (CABG) - a review of the literature

<b>Introduction:</b> Ischemic heart disease is the most common cause of death in the world. The lives of patients with vascular defects can be saved by coronary artery bypass grafting (CABG). However, it is associated with an increased risk of developing depression after surgery. <br><b>Meterial and Methods:</b> The aim of the study is to present the results of the latest research on postoperative depression after CABG, including studies describing the course of the disease, its consequences for the patient's prognosis and treatment. The publications available on the PubMed platform published after 2011 were reviewed. <br><b>Results:</b> Depression before and after CABG affects 30-40% of patients, mostly women. Established after surgery and untreated, it persists for many years. The level of anxiety in patients decreases systematically after surgery. Indicators that may correlate with the patient's postoperative depression, including cortisol, high sensitivity C-reactive protein (hsCRP) and oxidative stress biomarkers, are being investigated. The occurrence of depression in patients after CABG has a number of negative consequences. Those include: weaker response to treatment, greater chance of relapse, and increased readmission frequency and mortality. Treatment of patients with this disorder involves the use of antidepressants (most often SSRIs - selective serotonin reuptake inhibitor) and/or various types of psychotherapy with cognitive behavioral therapy (CBT) at the forefront. <br><b>Conclusions:</b> Depression following CABG decreases the quality of life and worsens patient prognosis. It is necessary to detect this condition early after surgery and to apply treatment, taking into account the cardiological disorders of the patient.

Assessment of the Quality of Life in Patients before and after Coronary Artery Bypass Grafting (CABG): A Prospective Study

The aim of this study was to examine the quality of life and to report on the utility and QALY measures in patients before and after coronary artery bypass grafting (CABG); to investigate whether the SF-12 is comparable with the SF-36 for measuring health-related quality of life of patients with CABG; and to determine the impact of individual predictors on poor quality of life assessment after rehabilitation. This prospective study was conducted between January 2017 and December 2018 at the University Hospital Center Osijek, at three time points: pre-operation, 1 month after surgery, and after rehabilitation. The study was conducted with the SF-36 and SF-12 health questionnaires on 47 participants. After rehabilitation, there was a significant improvement in all domains of quality of life. The highest score was given to the change in pain (BP); mean scores were 63.8 (95% CI 56.9 to 70.6) (p = 0.001). The lowest grade (the lowest quality) after rehabilitation was in the domain of limitations due to physical difficulties (RP); arithmetic mean was 48.5 (95% CI 41 to 55.9) (p < 0.001). Quality-adjusted life-year was 0.41 (95% CI 0.38–0.44) after the CABG. The results of this study show that patients with coronary heart disease have poor quality of life before surgery. One month after the surgery, the quality of life improved, but was still inadequate. One year after surgery, satisfactory results were obtained in almost all subscales. The SF-36, SF-12, and its components, can be used effectively in patients with CABG. Age, gender, lifestyle, and risk factors in our sample of participants are not predictors of poor quality of life assessment after rehabilitation.

Adherence to lifestyle changes after coronary artery bypass graft: Outcome of preoperative peer education

OBJECTIVE

This study was done to investigate the effect of preoperative peer education on patients' adherence to medication and lifestyle changes after Coronary Artery Bypass Graft (CABG).

METHODS

In this randomized clinical trial, the peers of CABG patients conducted preoperative educational sessions at the ward in groups of 4-5 (n = 36) while the control group (n = 34) received routine education by a nurse. Adherence of both groups to medication and recommendations for lifestyle modification including physical activity, smoking, and diet was measured one and two months after discharge.

RESULTS

A multivariate analysis of co-variance showed the significant effect of peer education on adherence (F = 32.586, p < 0.001; η² = 0.671). Univariate ANCOVA revealed a significant difference in adherence to diet between the two groups (F = 62.316, p = 0 0.0001; η² = 0.482). Based on the repeated measures ANOVA, peer education significantly improved the CABG patients' adherence to diet (F = 55.373, p = 0.0001) and their total adherence (F = 9.911, p = 0.002) compared to the control group.

CONCLUSION

Preoperative peer education had a significant effect on improving CABG patients' adherence to lifestyle changes after hospital discharge.

PRACTICE IMPLICATION

Peer education can be used as an effective method to improve the CABG patients ' adherence to lifestyle changes.

Determinants of Return to Work After Multicomponent Cardiac Rehabilitation

OBJECTIVES

To explore predictors of return to work in patients after acute coronary syndrome and coronary artery bypass grafting, taking into account cognitive performance, depression, physical capacity, and self-assessment of the occupational prognosis.

DESIGN

Observational, prospective, bicentric.

SETTING

Postacute 3-week inpatient cardiac rehabilitation (CR).

PARTICIPANTS

Patients (N=401) <65 years of age (mean 54.5±6.3y), 80% men.

INTERVENTIONS

Not applicable.

MAIN OUTCOME MEASURES

Status of return to work (RTW) 6 months after discharge from CR.

RESULTS

The regression model for RTW showed negative associations for depression (odds ratio 0.52 per SD, 95% confidence interval 0.36-0.76, P=.001), age (odds ratio 0.72, 95% confidence interval 0.52-1.00, P=.047), and in particular for a negative subjective occupational prognosis (expected incapacity for work odds ratio 0.19, 95% confidence interval 0.06-0.59, P=.004; unemployment odds ratio 0.08, 95% confidence interval 0.01-0.72, P=.024; retirement odds ratio 0.07, 95% confidence interval 0.01-0.067, P=.021). Positive predictors were employment before the cardiac event (odds ratio 9.66, 95% confidence interval 3.10-30.12, P<.001), capacity to work (fit vs unfit) at discharge from CR (odds ratio 3.15, 95% confidence interval 1.35-7.35, P=.008), and maximum exercise capacity (odds ratio 1.49, 95% confidence interval 1.06-2.11, P=.022). Cognitive performance had no effect.

CONCLUSIONS

The patient's perception and expectation regarding the occupational prognosis play a crucial role in predicting return to work 6 months after an acute cardiac event and CR. These findings highlight the importance of the multimodal approach, in particular psychosocial components, of CR.

Psychological Factors Influence the Success of Coronary Artery Surgery

Thirty-six patients with angina were investigated by treadmill exercise testing and coronary angiography prior to coronary artery surgery. Severity of angina was judged by interview and self-assessment visual analogue scale and all patients were psychiatrically assessed. Further physical and psychiatric assessments were made at 3 and 6 months postoperatively. Eleven patients (31%) had significant psychiatric morbidity preoperatively and these had worse symptom scores and exercise tolerance compared with non-psychiatric cases, despite equivalent coronary angiographic findings and left ventricular function. Postoperatively, exercise tolerance improved equally in both groups but psychiatric cases remained significantly more symptomatic. Psychiatric morbidity remained unchanged throughout the study.

We conclude that almost one third of patients with severe angina have psychiatric morbidity which is associated with a poor symptomatic response to coronary artery surgery, despite objective improvement in exercise tolerance. Ways of improving the symptomatic response to surgery in patients with coexisting psychiatric morbidity should be studied.

Symptoms of depression and anxiety and 11-year all-cause mortality in men and women undergoing coronary artery bypass graft (CABG) surgery

OBJECTIVES

To investigate the overall and the sex-specific association of preoperative and one-year post coronary artery bypass (CABG) surgery symptoms of depression and anxiety with 11-year all-cause mortality.

METHODS

A multicenter prospective study including 1125 patients who completed the Hospital Anxiety and Depression Scale (HADS) before an elective CABG surgery, of whom 850 completed the HADS again at one-year follow-up. Information on all-cause mortality was obtained through the Israeli Ministry of Internal Affairs Register. Multivariable adjusted Cox regression models quantified the association of symptoms of depression and anxiety with all-cause mortality.

RESULTS

Females comprised 22.7% of the cohort and were 5.5years older than males (70.0±9.3 and 64.4±10.3years, respectively). Controlling for sociodemographic and lifestyle factors, illness severity and post-surgery participation in cardiac rehabilitation, there was little evidence of an association between preoperative symptoms of depression and mortality in males [adjusted hazard ratio (aHR_males)=1.03, 95% CI 0.99-1.07, p=0.21] or females (aHR_females=1.01, 95% CI 0.95-1.08, p=0.7). One-year postoperative symptoms of depression were associated with mortality in both males (aHR_males=1.05, 95% CI 1.01-1.10, p=0.03) and females (aHR_females=1.07, 95% CI 1.02-1.13, p=0.013). Preoperative symptoms of anxiety were unrelated to mortality overall, but among females postoperative symptoms of anxiety predicted 11-year mortality (aHR_females=1.07, 95% CI 1.00-1.14, p=0.049). There was no HADS by sex interaction (p for interaction=0.12-0.99).

CONCLUSIONS

Symptoms of depression one-year after surgery were positively related to mortality with little evidence for sex differences. These findings underscore the need for identification and treatment of psychiatric symptoms in patients undergoing CABG surgery.

CLINICAL TRIAL REGISTRATION

ClinicalTrials.gov: NCT00356863.

[The Complex Program of Rehabilitation of Patients With Ischemic Heart Disease After Coronary Artery Bypass Surgery in Ambulatory Cardiorehabilitational Department: Clinical Effects of Third Stage of Rehabilitation]

PURPOSE

to assess clinical efficacy of early post discharge rehabilitation of patients with ischemic heart disease (IHD) after coronary artery bypass grafting (CABG) in conditions of a polyclinical department of cardiological rehabilitation (stage III of cardiorehabilitation).

MATERIAL AND METHODS

We included in this study 36 men with IHD in 3-8 weeks (mean 7.8+/-1.6 weeks) after CABG. Patients were randomized in 2groups: patients of the main group attended special "School for patients recovering after CABG" [School] (60-80 min sessions once a week for 5 weeks) and participated in a program of monitored (up to 60 min 3 times a week for 4 months) and unmonitored (home based) exercise training. Patients of the control group attended School and were given advice to do physical exercises at home. Follow up duration was 1 year.

RESULTS

Main group. Compared with baseline values after 4 months exercise duration increased 32.6% (p<0.05), this effect persisted at 12 month; threshold exercise load increased 35.2% (p<0.05) after 4, 53.9% after 6, and 49.5% after 12 month. After 4 and 12 months of training some increases of left ventricular (LV) ejection fraction and stroke volume, and decrease of LV end systolic volume occurred. Physical training in this group was associated with improvement of parameters of quality of life. During 12 months of follow up there were no significant changes of concentrations of total and low density lipoprotein cholesterol (TC, LDLC). In the control group slight increase of exercise duration was observed only at 12 months (9.8%, p<0.05), and it was not accompanied by dynamics of exercise tolerance. Increases of concentrations of TC (10.2%, p<0.05) and LDLC (15.6%, p<0.05) were registered at 12 months. Serious cardiovascular complications in the main group (physical training + educational School) were three times less frequent than in the control group (attendance of School only) (11.1 vs. 39.2%, respectively.

Depression After Spinal Surgery: A Comparative Analysis of the California Outcomes Database

OBJECTIVE

To examine the relative incidence of newly recorded diagnosis of depression after spinal surgery as a proxy for the risk of post-spinal surgery depression.

PATIENTS AND METHODS

We used the longitudinal California Office of Statewide Health Planning and Development database (January 1, 2000, through December 31, 2010) to identify patients who underwent spinal surgery during these years. Patients with documented depression before surgery were excluded. Risk of new postoperative depression was determined via the incidence of newly recorded depression on any hospitalization subsequent to surgery. For comparison, this risk was also determined for patients hospitalized during the same time period for coronary artery bypass grafting, hysterectomy, cholecystectomy, chronic obstructive pulmonary disease, congestive heart failure exacerbation, or uncomplicated vaginal delivery.

RESULTS

Our review identified 1,078,639 patients. Relative to the uncomplicated vaginal delivery cohort, the adjusted hazard ratios (HRs) for newly recorded depression within 5 years after the admission of interest were 5.05 for spinal surgery (95% CI, 4.79-5.33), 2.33 for coronary artery bypass grafting (95% CI, 2.15-2.54), 3.04 for hysterectomy (95% CI, 2.88-3.21), 2.51 for cholecystectomy (95% CI, 2.35-2.69), 2.44 for congestive heart failure exacerbation (95% CI, 2.28-2.61), and 3.04 for chronic obstructive pulmonary disease (95% CI, 2.83-3.26). Among patients who underwent spinal surgery, this risk of postoperative depression was highest for patients who underwent fusion surgery (HR, 1.28; 95% CI, 1.22-1.36) or had undergone multiple spinal operations (HR, 1.22; 95% CI, 1.16-1.29) during the analyzed period.

CONCLUSION

Patients who undergo spinal surgery have a higher risk for postoperative depression than patients treated for other surgical or medical conditions known to be associated with depression.

A Normative Zone of Rpe Ratings for Use during Graded Exercise Testing

The purposes of this investigation were to identify a zone of normality for ratings of perceived exertion (RPE) and to compare the RPE responses in patients with coronary artery disease to this zone. The zone was generated from RPE estimated during the last minute of each stage of a Bruce treadmill test in 44 normal adult men. RPE were regressed against the corresponding MET level for each exercise stage. The zone was established as the 95% confidence interval (CI) spanning the average RPE vs MET regression line. RPE estimated during the last 1.0 min. of a Bruce or Modified Balke treadmill test administered to adult men ( n = 37) with coronary artery disease were compared to the 95% CI zone. A total of 19 (51%) of the coronary artery disease patients estimated RPE during a progressively incremented treadmill test that were above the zone, indicating a comparatively greater than normal perception of strain for a given metabolic stress. The presently generated zone provides a practical use of RPE in the interpretation of clinical exercise tests.

Perceived Effort Step-up Procedure for Self-Regulating Stationary Cycle Exercise Intensity by Patients with Cardiovascular Disease

This study examined the strategy utilized by patients with cardiovascular disease to regulate exercise intensity using the Rating of Perceived Exertion (RPE) and tested if a step-up procedure would reduce overshoot of target heart rate (HR). Also the study investigated if Prescription Congruence and Intensity Discrimination, components of the Intensity Self-regulation Model, could be validated for these patients. An estimation and production paradigm was used. HR was measured at 2-min. intervals during 6-min. stationary cycle ergometer exercise trials. Data for four experimental trials were compared: (1) a work intensity set by experimenter to achieve a target RPE of 11 (Estimation 11), (2) an intensity set by experimenter to achieve a target RPE of 13 (Estimation 13), (3) an intensity varied by participant every 2 min. to produce a target RPE of 13 (Production 13), and (4) a Step-up Procedure with the intensity varied by participant, first producing a target RPE of 11 during the first 2 min., followed by producing a target RPE of 13 from min. 2 to 6 of exercise (Production 11 + 13). A very small effect size was found for HR between Production 13 and Estimation 13, and a moderate effect size was noted for the increased HR when patients produced a target RPE of 13 as compared to 11. The participants could be divided into 2 groups: 10 patients comprised a Higher group whose HR at 2 min. during Production 13 was greater than HR at 2 min. during Estimation 13, and 6 patients in a Lower group with HR at 2 min. during Production 13 less than or equal to HR during Estimation 13. A large effect size was found at 6 min. for the reductions of the Higher group's HR overshoot and for the Lower group's HR undershoot during Production 13. All participants in the Higher group ( n = 10) had a clinically significant 1ER overshoot of 5 beats · min.−1 at 2 min. during Production 13. Using a Step-up Procedure (Production 11 + 13), a large effect size was found for the reduced number of patients ( n = 3) with an overshoot of 5 beats · min.−1 at 2 min. This supports the ability of participants in cardiac rehabilitation programs to meet the Prescription Congruence and Intensity Discrimination components of the Intensity Self-regulation Model in the RPE 11–13 zone. Evidence was found for overshoot/undershoot of target HR at 2 min., supporting a proposed third component, Production Strategy, of the Intensity Self-regulation Model. The 2-min. Step-up Procedure reduced some patients' tendency to “overshoot” target intensity.

Recovery after coronary artery bypass grafting: Patients’ and health professionals’ views of the hospital experience

Background

Increasing access to revascularisation procedures is a key aspect of a National Service Framework. Coronary artery bypass grafting (CABG) is effective in relieving symptoms and reducing mortality but some patients do not report an improved quality of life or experience a good recovery.

Aims

To describe the recovery trajectory after CABG and identify facilitators and barriers to recovery.

Methods

Semi-structured interviews were conducted with 11 patients who had previously undergone elective, isolated, first-time CABG and with 10 health professionals experienced in caring for these patients.

Results

Thematic analysis identified the following themes: definition and timeline of recovery, preparation for surgery including information provision, attitude to surgery and confidence in staff, clinical factors and the in-patient experience. The key finding is the different recovery trajectory between patients with severe versus mild pre-operative symptoms; patients with few pre-CABG symptoms reported a much longer recovery time.

Conclusions

This study has provided insights into the barriers and facilitators to recovery after CABG and the processes involved. Findings have indicated areas where health professionals can intervene to aid patients’ long-term recovery and thereby maximise the benefits of CABG.

Coronary Artery Bypass Graft Operation: Patients' Experience of Health and Well-Being Over Time

BACKGROUND

The aim of the coronary artery bypass graft operation is to relieve anginal symptoms and improve functional ability, quality of life and survival. However, having the surgery does not always have the desired outcomes. Although numerous studies have investigated the outcomes of coronary artery bypass graft operation, little attention has been given to patients' perceptions of the outcomes or effects of the operation on health and well-being over time.

AIM

To explore patients' perspectives on the effects of coronary artery bypass surgery on health and well-being over time.

METHODS

As part of a larger mixed methods study, 62 in-depth audio-taped interviews with men and women who had undergone coronary artery bypass approximately 7 years earlier were conducted. Interviews were audio-taped and transcribed. Data were analysed thematically. This paper reports the findings from the qualitative component of the larger study.

FINDINGS

The four main themes: 'Recovery and Rehabilitation', 'Seven Years On', 'Maintaining a Positive Approach', and 'Health Behaviour Change' reflect the main areas of focus emerging across the interviews and provide credible overarching descriptors of the sub-themes they encompass. The 11 sub-themes identified were recognised as central to the patients' experiences of their health and well-being over the longer-term.

CONCLUSIONS

Although most patients report improved health and well-being after coronary artery bypass operation, many have described their recovery and rehabilitation as a complex process with both short and long term effects. The insights provided by participants help improve our understanding of the impact of the operation on patients' health and well-being over time. We believe these insights will help us to anticipate the possible needs of future patients and enable us develop appropriate interventions that may facilitate self-management for optimal recovery and health maintenance.

Experiences of the Onset of Coronary Artery Disease in a Spouse

The purpose of this study was to describe the experiences of persons whose spouses have newly diagnosed coronary artery disease (CAD). The purpose was to obtain knowledge that would help us to understand better the life of persons with a chronically ill spouse and to develop the education and rehabilitation of both the patients and their spouses. Data were collected from healthy spouses by an open-ended question. There were 146 informants. They were asked to write about their experiences of everyday life after their spouse had been diagnosed for CAD. The data were analyzed by methods of content analysis. The following categories were formulated to describe the healthy spouses' experiences: slow pace of life, limited life and unsure life. Slow pace of life meant that the disease had been adopted as a normal part of life. Life was organized in a new way, and the earlier busy and work-oriented lifestyle had been given up. The informants whose spouses had medication considered their personal freedom to be limited, because they had to assume responsibility for the care of their spouses. The spouses of the patients who had undergone bypass surgery (CABS) or angioplasty (PTCA) had a new role in the family. They had to monitor for symptoms, treat symptoms, take care, understand and support. They had to assume responsibility for everyday life. They felt themselves to be alone in that situation. They did not receive support from health care providers. All informants felt uncertainty due to financial problems, poorly planned care and unexpected changes in the course of the disease. As a conclusion, it can be said that life was limited by the sick spouse's needs. The disease caused changes in emotional balance, a need for continuous control of life, fears about a new myocardial infarction and worries about many issues of everyday life.

“No More Couch-Potato!” Patients' Experiences of a Pre-Operative Programme of Cardiac Rehabilitation for Those Awaiting Coronary Artery Bypass Surgery

BACKGROUND

The waiting period for coronary artery bypass surgery is a difficult time for patients and families. Pre-operative cardiac rehabilitation may be safe and effective, but there is limited evidence regarding patients' experience and perceptions of such intervention.

AIM

To describe patients' experiences of a pre-operative programme of cardiac rehabilitation developed specifically for those awaiting coronary artery bypass surgery.

METHOD

A convenience sample of eight patients awaiting non-urgent surgery who had completed a 12 week pilot programme of cardiac rehabilitation were invited to be interviewed using a descriptive phenomenological approach. Domicillary interviews using an open technique were taped, transcribed and analysed using Colaizzi's framework.

RESULTS

Participants described this programme as a useful means of improving exercise capacity and decreasing anxiety. Through the combination of exercise, advice and support participants stated that their initial fear that exercise would cause a heart attack was replaced with confidence, enabling them to become fitter and modify other risk factors.

CONCLUSIONS

Findings of this study suggest that the programme was acceptable and perceived as beneficial by participants. Further research is required to evaluate the efficacy of pre-operative rehabilitation on risk factor modification.

CABG and PTCA Patients' Expectations of Informational Support in Health-Related Quality of Life Themes and Adequacy of Information in 1-Year Follow-Up

The purpose of this study was to describe coronary artery bypass grafting (CABG) and percutaneous transluminal coronary angioplasty (PTCA) patients' need for nursing informational support in health-related (HRQoL) items before and after coronary artery procedures. As well we present the adequacy of informational support from patients' viewpoint. The study sample (N=625) consisted of consecutive male (N=439) and female (N=176) patients with CAD who were treated with elective CABG or PTCA. The data were collected by structured interview before coronary artery procedures and by mailed questionnaires 6 and 12 months afterwards in 1999-2001. Patients in both groups reported needing the most information about recovery and psychosocial functioning before and after the treatments. Single HRQoL items identified that the expectations of women and men differed during the follow-up period. Women in the PTCA group needed more informational support than men before procedures, while men needed more support afterwards. Our results suggest that the content of informational support is different for male and female patients before and after the coronary artery procedures. The effects of nursing interventions and instruments for measuring change in patients' outcome resulting from nursing interventions should be developed further.

Attachment anxiety predicts depression and anxiety symptoms following coronary artery bypass graft surgery

OBJECTIVE

Depression and anxiety are associated with poor recovery in coronary artery bypass graft (CABG) patients, but little is known about predictors of depression and anxiety symptoms.

DESIGN

We tested the prospective association between attachment orientation, and symptoms of depression and anxiety in CABG patients, 6-8 weeks, and 12 months following surgery.

METHOD

One hundred and fifty-five patients who were undergoing planned CABG surgery were recruited. Patients completed questionnaires measuring attachment, depression, and anxiety prior to surgery, then 6-8 weeks, and 12 months after surgery.

RESULTS

Attachment anxiety predicted symptoms of depression and anxiety at both follow-up time points, whereas attachment avoidance was not associated with depression or anxiety symptoms. The findings remained significant when controlling for baseline mood scores, social support, demographic, and clinical risk factors.

CONCLUSION

These results suggest that attachment anxiety is associated with short-term and long-term depression and anxiety symptoms following CABG surgery. These results may offer important insight into understanding the recovery process in CABG surgery. Statement of contribution What is already known on this subject? Depression and anxiety symptoms are twice more likely to occur in coronary artery bypass graft (CABG) populations than in any other medical group. Depression and anxiety are associated with poor recovery following cardiac surgery. Predictors of depression and anxiety in CABG patients have been underexplored. What does this study add? This study highlights the importance of close interpersonal relationships on health. Attachment anxiety was prospectively associated with higher levels of depression and anxiety. These results add to understanding mechanisms linked to recovery following CABG.

Perceptions of Care of Patients Undergoing Coronary Artery Bypass Surgery in Veterans Health Administration and Private Sector Hospitals

Few studies have examined differences in patient perceptions of care between health care systems. This study compared the perceptions of male patients undergoing coronary artery bypass graft surgery in 43 Veterans Health Administration (VA) hospitals (N = 808) and 102 US private sector hospitals (N = 2271) from 1995 to 1998. Patient perceptions were measured by a validated survey that was mailed to patients after discharge. For 8 of the 9 dimensions assessed by the survey, VA patients were more likely (P < .001) than private sector patients to note a problem with care (eg, Coordination, 48% versus 40%; Patient Education and Communication, 50% versus 40%; Respect for Patient Preferences, 49% versus 41%). In comparisons limited to major teaching hospitals, VA patients were more likely to note a problem for 5 dimensions. The findings indicate that patient perceptions of care may be lower in VA than in private sector hospitals. Future studies should examine whether the VA's recent focus on improving patient satisfaction has narrowed these differences.

Pre-surgical depression and anxiety and recovery following coronary artery bypass graft surgery

We aimed to explore the combined contribution of pre-surgical depression and anxiety symptoms for recovery following coronary artery bypass graft (CABG) using data from 251 participants. Participants were assessed prior to surgery for depression and anxiety symptoms and followed up at 12 months to assess pain and physical symptoms, while hospital emergency admissions and death/major adverse cardiac events (MACE) were monitored on average 2.68 years after CABG. After controlling for covariates, baseline anxiety symptoms, but not depression, were associated with greater pain (β = 0.231, p = 0.014) and greater physical symptoms (β = 0.194, p = 0.034) 12 months after surgery. On the other hand, after controlling for covariates, baseline depression symptoms, but not anxiety, were associated with greater odds of having an emergency admission (OR 1.088, CI 1.010–1.171, p = 0.027) and greater hazard of death/MACE (HR 1.137, CI 1.042–1.240, p = 0.004). These findings point to different pathways linking mood symptoms with recovery after CABG surgery.

Using the Neuman Systems Model for Best Practices

Human beings with unmet needs related to their health and illnesses are the central focus of the domain of nursing. It is proposed in this column that nurses who conduct their practice from a nursing theory base, while assisting individuals and families to meet their health needs, are more likely to provide comprehensive, individualized care that exemplifies best practices. The Neuman systems model has been widely acclaimed to guide practice, yet specific examples are few in the published literature. The purpose of this column is to present two case studies based upon Neuman systems model; one case is directed toward family care, and the other demonstrates care with an individual. Theory-based exemplars serve as teaching tools for students and practicing nurses. These case studies illustrate how nurses' actions, directed by Neuman's wholistic principles, integrate evidence-based practice and generate high quality care.

Comparison of Symptoms of Younger and Older Patients Undergoing Coronary Artery Bypass Surgery

Little is known about the symptom experience throughout the trajectory of recovery for patients after coronary artery bypass surgery (CABS). This study investigates the preoperative and postoperative symptoms experienced by younger (< 65 years) and older (= 65 years) patients (N= 102) who had undergone CABS. Reported preoperative symptoms were angina, shortness of breath, dizziness, and sweating. At 1 week post-CABS, symptoms were incisional pain, wound drainage, chest congestion, shortness of breath, dizziness, sweating, swollen feet, and loss of appetite; incisional pain and swollen feet were reported by a few patients at 6 weeks after CABS. The incidence and frequency of postoperative symptoms declined over time. There were several age-related differences in symptom reports prior to and at 1 and 6 weeks after the procedure. Such information can be used to plan the care of patients undergoing CABS, to prepare them for normal recovery, and to determine the need for symptom management by health care providers.

Clinical life: expectation and the double edge of medical promise

This article introduces the concept of clinical life to capture a form of life produced in the pursuit and wake of medically achieved longevity. Relying on the retrospective accounts of 28 individuals over age 70 who have undergone cardiac bypass surgery, angioplasty or a stent procedure, as well as interviews with their families and with clinicians, we examine three features of clinical life. First, patients do not distinguish between clinical possibility and clinical promise, and thus assume that life can and will be improved by medical intervention in late life. Rather than anticipating a range of potential treatment outcomes, patients therefore expect the best-case scenario: that medical procedures will reverse aging, disease and the march of time. Second, patients then assess the value of their post-procedure lives in accordance with that expectation. Norms regarding what life ‘should be like’ at particular ages are continually recalibrated to the horizon of what is clinically possible. And third, the price of living longer entails a double-edged relationship with the clinic – it generates opportunities for bodily restoration and increased self-worth but also creates ambivalence about the value of life. This latter feature of clinical life is rarely publicly acknowledged in an environment that emphasizes medical promise.

Social Sharing of Emotion in Anticipation of Cardiac Surgery

This study examined associations between social sharing of emotions, social support and preoperative psychological distress. Social sharing was operationalized in terms of quantity and quality. Quantity of social sharing was measured daily using a diary method. Quality of social sharing was measured with the Quality of Sharing Inventory. Participants were 157 hospitalized Greek patients. Hierarchical regression analysis showed that controlling for distress on admission, quality of social sharing was negatively related to distress one day before surgery ( p < .01). No effects were found for quantity of social sharing. Results emphasize the importance of studying qualitative aspects of emotional disclosure.

Recovery Symptoms and Mood States in Thai CABG patients

Recovery symptoms and related mood states during early recovery after coronary artery bypass graft surgery (CABG) have never been assessed in Thailand. This cross-sectional descriptive correlational study was to identify the relationships between frequency of recovery symptoms and mood states of a convenience sample of 91 Thai CABG patients during 2 weeks after discharge. Standardized tools/procedures were used to measure the variables of interest. The most common recovery symptoms were chest and leg incision pain, having trouble sleeping, and neck and shoulder or back discomfort. The most common mood states were confusion, anxiety, and anger, respectively. In addition, Thai CABG patients who had more frequent recovery symptoms also had greater negative mood disturbance. These findings provide a beginning explanation about the phenomena of recovery symptoms and mood states in a specific culture, Thai CABG patients.

Pharmacological Treatment and Perceived Health Status During 1-Year Follow Up in Patients Diagnosed with Coronary Artery Disease, But Ineligible for Revascularization: Results from the Euro Heart Survey on Coronary Revascularization

BACKGROUND

It has been recognized that a clinically significant portion of patients with coronary artery disease (CAD) continue to experience anginal and other related symptoms that are refractory to the combination of medical therapy and revascularization. The Euro Heart Survey on Revascularization (EHSCR) provided an opportunity to assess pharmacological treatment and outcome in patients with proven CAD who were ineligible for revascularization.

METHODS

We performed a secondary analysis of EHS-CR data. After excluding patients with ST-elevation myocardial infarction and those in whom revascularization was not indicated, 4409 patients remained in the analyses. We selected two groups: (1) patients in whom revascularization was the preferred treatment option (n = 3777, 86%), and (2) patients who were considered ineligible for revascularization (n = 632, 14%).

RESULTS

Patient ineligible for revascularization had a worse risk profile, more often had a total occlusion (59% vs. 37%, p < 0.001), were treated more often with ACE-inhibitors (65% vs. 55%, p < 0.001) but less likely with aspirin (83% vs. 88%, p < 0.001). Overall, they had higher case-fatality at 1-year (7.0% vs. 3.7%, p < 0.001). Regarding self-perceived health status, measured via the EuroQol 5D (EQ-5D) questionnaire, these same patients reported more problems on all dimensions of the EQ-5D. Furthermore, in the revascularization group we observed an increase between discharge and 1-year follow up (utility score from 0.85 to 1.00) whereas patients ineligible for revascularization did not improve over time (utility score remained 0.80)

CONCLUSION

In this large cohort of European patients with CAD, those considered ineligible for revascularization had more co-morbidities and risk factors, and scored worse on self-perceived health status as compared to revascularized patients in the revascularization group. With the exception of ACE-inhibitors and aspirin, there were no major differences regarding drug treatment between the two groups. Given these clinically significant observations, there appears to be a role for nurse-led, multidisciplinary, rehabilitation teams that target clinically vulnerable patients whose symptoms remain refractory to standard medical care.

Sense of Coherence and Health-Related Quality of Life among Patients Undergoing Coronary Artery Bypass Grafting or Angioplasty

BACKGROUND

Every year, 4 million people die from cardiovascular disease (CAD) in Europe. As many as 800,000 of them die before they reach the age of 65. The ischemic heart disease is also the most common cause of death in Finland. The invasive treatments of the CAD, coronary artery bypass grafting (CABG) and percutaneous transluminal coronary angioplasty (PTCA) relieve symptoms and increase patient's health-related quality of life (HRQoL) in most of the cases. In this paper sense of coherence is discussed as related to health-related quality of life among CABG and PTCA patients in a one-year follow-up.

SAMPLE

The study sample consisted of consecutive male (N=439) and female (N=176) patients who were treated with the elective CABG or PTCA. The baseline data before the interventions were collected by structured interviews, the follow-up data by mailed self-administered questionnaires six and twelve months afterwards.

MEASURES

The sense of coherence was studied by using a 13-item SOC scale. HRQoL was measured by the 15D. It is a generic, multidimensional, standardized, self-administered instrument, which has both a profile and single index score property. The differences in both groups were defined by using T-tests. Follow-up outcomes were analysed by using analyses of variance for repeated measures.

RESULTS

Health-related quality of life increased in both groups during the follow-up. There was a correlation between health-related quality of life and sense of coherence in CABG and PTCA patients' group at baseline. The mean score of the 15D was lower in moderate sense of coherence tertile than in strong sense of coherence tertile in both groups. After six and twelve months the similar tendency existed in health-related quality of life and sense of coherence; patients who had poor or moderate sense of coherence had lower health-related quality of life than the patients with strong sense of coherence.

CONCLUSIONS

Sense of coherence was more stable among CABG patients than PTCA patients. In PTCA patients' group sense of coherence decreased during the follow-up time. In both patients' group the health-related quality of life increased statistically significant by 6 months. No significant change in health-related quality of life took place in either group from 6 to 12 months.

Depressive symptoms in patients with coronary artery disease

OBJECTIVE

To assess the presence of depressive symptoms in patients with coronary artery disease in the preoperative period for coronary artery bypass surgery (CABG) in Aracaju, Sergipe, Brazil.

METHODS

A cross-sectional study with 63 hospitalized patients prior to CABG. Two instruments were used for data collection; one for the sociodemographic and clinical characteristics, and the other to evaluate the presence of depressive symptoms, Beck Depression Inventory (BDI).

RESULTS

The mean age was 58 years; most were male (60.3%); with a partner (81%) low educational level (71.4% attended school through elementary school). Among the patients, 36.5% were classified with dysphoria, and 25.4% had some degree of depression (6.3% mild, 17.5% moderate, and 1.6% severe). The group of patients with lower educational level presented higher depressive symptoms.

CONCLUSION

Six of every ten patients with coronary artery disease showed dysphoria or some degree of depression. The results of this study can support the planning of nursing care for patients before and after CABG, as well as the development of public health policies to ensure complete, quality care for these patients, understanding depression as a variable that can interfere with recovery after cardiac surgery.

[Quality of Life of Patients With Ischemic Heart Disease and Pronounced Dysfunction of Left Ventricular Myocardium With Medical and Surgical Treatments]

We assessed quality of life in 80 patients with ischemic heart disease and pronounced dysfunction of left ventricular myocardium. Forty patients underwent coronary bypass surgery and 40 patients received only medical therapy. Duration of follow-up was 7 years. Baseline quality of life was low in both groups. Degree of its lowering was positively related to functional class of angina and heart failure and negatively - to exercise tolerance. Incessant drug treatment was associated with moderate improvement of quality of life both in groups of patients subjected and not subjected to surgery.

Sleep Quality and Emotional Correlates in Taiwanese Coronary Artery Bypass Graft Patients 1 Week and 1 Month after Hospital Discharge: A Repeated Descriptive Correlational Study

Background

Poor sleep quality is a common health problem for coronary artery bypass graft patients, however few studies have evaluated sleep quality during the period immediately following hospital discharge.

Purpose

The aim of this study was to investigate changes in sleep quality and emotional correlates in coronary artery bypass graft patients in Taiwan at 1 week and 1 month after hospital discharge.

Methods

We used a descriptive correlational design for this study. One week after discharge, 87 patients who had undergone coronary artery bypass surgery completed two structured questionnaires: the Pittsburgh Sleep Quality Index and the Hospital Anxiety and Depression Scale. Three weeks later (1 month after discharge) the patients completed the surveys again. Pearson correlations, t-tests, ANOVA and linear multiple regression analysis were used to analyze the data.

Results

A majority of the participants had poor sleep quality at 1 week (82.8%) and 1 month (66.7%) post-hospitalization, based on the global score of the Pittsburgh Sleep Quality Index. Despite poor sleep quality at both time-points the sleep quality at 1 month was significantly better than at 1-week post hospitalization. Poorer sleep quality correlated with older age, poorer heart function, anxiety and depression. The majority of participants had normal levels of anxiety at 1 week (69.0%) and 1 month (88.5%) as measured by the Hospital Anxiety and Depression Scale. However, some level of depression was seen at 1 week (78.1%) and 1 month (59.7%). Depression was a significant predictor of sleep quality at 1 week; at 1 month after hospital discharge both anxiety and depression were significant predictors of sleep quality.

Conclusion

Sleep quality, anxiety and depression all significantly improved 1 month after hospital discharge. However, more than half of the participants continued to have poor sleep quality and some level of depression. Health care personnel should be encouraged to assess sleep and emotional status in patients after coronary artery bypass surgery and offer them appropriate management strategies to improve sleep and reduce anxiety and depression.

Electronic protocol for suicide risk management in research participants

OBJECTIVE

To describe an electronic, telephone-delivered, suicide risk management protocol (SRMP) that is designed to guide research staff and safely triage study participants who are at risk for self-harm.

METHODS

We tested the SRMP in the context of the NIH-funded randomized clinical trial "Bypassing the Blues" in which 302 patients who had undergone coronary artery bypass graft surgery (CABG) were screened for depression and assessed by telephone 2-weeks following hospital discharge and at 2-, 4-, and 8-month follow-up. We programmed the SRMP to assign different risk levels based on patients' answers from none to imminent with action items for research staff keyed to each of them. We describe frequency of suicidal thinking, SRMP use, and completion of specific steps in the SRMP management process over the 8-month follow-up period.

RESULTS

Suicidal ideation was expressed by 74 (25%) of the 302 study participants in 139 (13%) of the 1069 blinded telephone assessments performed by research staff. The SRMP was launched in 103 (10%) of assessments, and the suicidal risk level was classified as moderate or high in 10 (1%) of these assessments, thereby necessitating an immediate evaluation by a study psychiatrist. However, no hospitalizations, emergency room visits, or deaths ascribed to suicidal ideation were discovered during the study period.

CONCLUSION

The SRMP was successful in systematically and safely guiding research staff lacking specialty mental health training through the standardized risk assessment and triaging research participants at risk for self-harm.

TRIAL REGISTRATION

Clinicaltrials.gov Identifier: NCT00091962 (http://clinicaltrials.gov/ct2/show/NCT00091962?term=rollman+cabg&rank=1).

[Depression in patients after coronary artery bypass grafting]

Surgical revascularization is a recognized method of treatment ofischaemic heart disease. The number of patients undergoing coronary artery bypass grafting (CABG) is constantly increasing, both in a population of young patients with coronary heart disease and in elderly patients. It is estimated that even one out of three patients undergoing CABG in the perioperative period can develop symptoms of depression. Numerous individual factors as well as factors related to the surgery have an impact on the occurrence of depression. The most common factors are: age, sex, socio-economic status, co-existing diseases, and the occurrence ofpreoperative depression. Researchers are currently looking for biochemical markers concentration of which before surgery could serve as a predicator for the occurrence of post-CABG depression. It is suggested that inflammatory response, particularly intense in the perioperative period, is linked to the occurrence of depression after surgical revascularization. Recognizing these factors is of utmost importance since it will help develop a stratification aiming at the identification of patients who are particularly prone to the occurrence of postoperative depression. Due to the fact that depression not only lowers the quality of life but also affects the short-term and long-term prognosis, identifying patients at risk is significantly important.

Researching continuity of care: Can quality of life outcomes be linked to nursing care?

Research that informs nursing interventions across the care continuum is vital, especially with shortened hospital stays. Measuring Quality of Life (QOL) and Health Related Quality of Life (HRQOL) helps identfy health status improvements, but fails to provide insight into the effectiveness of nursing interventions aimed at continuity of care. Four research examples illustrate the need for complementary, qualitative studies of what patients and their families think, feel, need and want. These indicate a need to reconceptualise the research agenda in terms of the complexity and settings of nursing practice, and the need for informational as well as statistical significance.

Depression after CABG: a prospective study

INTRODUCTION

Depression during or shortly after hospitalization elevated two to three times the risk of mortality or nonfatal cardiac events, significantly increasing the morbidity and mortality of these patients.

OBJECTIVE

To assess the impact of revascularization on symptoms of depression in patients with coronary artery disease.

METHODS

A prospective cohort study of 57 patients of both sexes undergoing coronary artery bypass grafting between June 2010 and June 2011. We used the SF-36 to assess quality of life, and the Beck Depression Inventory to detect depressive symptoms, applied preoperatively and six months.

RESULTS

The prevalence of patients aged 60-69 years was 22 patients (38.60%), 39 men (68.42%), 26 described themselves as mixed race (45.61%), 16 literate (28.07 %) and 30 married (52.63%). The beck depression inventory score demonstrated increased after revascularization: 15 patients mild (26.32%) at time zero to 17 (29.82%) after. And with moderate, seven patients (12.28%) before and 10 (17.54%) after. In the categories of individuals with decreased minimum degree of 32 (56.14%) to 28 (49.12%), and severe of three (5.26%) for two (3.51%) patients. Association was observed between beck depression inventory, gender, age, lifestyle, comorbidities and quality of life.

CONCLUSION

There was a high prevalence of elevated beck depression inventory scores, lowest scores of depressive symptoms among men and association between the improvement of quality of life scores and beck depression inventory.

[Informed consent: coronary artery bypass grafting]

Coronary artery bypass graft surgery (CABG) is well-documented procedure. Despite the increased prevalence of percutaneous coronary intervention (PCI), surgical revascularization will continue to have a major role in patients with coronary artery disease. As shown in previous clinical studies, physicians can provide important information about risk-adjusted outcomes to patients. A number of databases have been used to develop risk models for predicting morbidity and mortality in patients undergoing CABG. Patients must make a choice between CABG and PCI based on physicians' explanations. Major trials demonstrated a marked survival benefit from CABG among those patients at high risk of death from the disease itself as defined by the severity of angina, number of diseased vessels, and left ventricular function. However, it is not clear that patients always receive the correct information on whether CABG or PCI is the more appropriate procedure. The initial informed consent should be obtained using the relevant guidelines by an independent adviser.

Impact of physical activity on depression after cardiac surgery

BACKGROUND

Physical activity is associated with a lower prevalence of depressive symptoms in cardiac patients. However, the benefits of physical activity on depression perioperatively are unknown. We sought to identify independent parameters associated with depression in patients undergoing cardiac surgery.

METHODS

Patients awaiting nonemergent cardiac surgery (n = 436) completed the Patient Health Questionnaire-9 (PHQ-9) to quantify depression (PHQ-9 score > 9). Physical activity was assessed with the International Physical Activity Questionnaire (IPAQ-short) and accelerometry. Data collection occurred preoperatively (Q1, n = 436), at hospital discharge (Q2, n = 374), at 3 months (Q3, n = 318), and at 6 months (Q4, n = 342) postoperatively. Patients were categorized as "depression naive", "at risk" or "depressed" preoperatively. Physical inactivity was defined as < 600 metabolic equivalent min/wk. Independent perioperative variables associated with depression were identified with univariate and multivariate logistic regression.

RESULTS

Depression prevalence from Q1-Q4 was 23%, 37%, 21%, and 23%, respectively. Independent associations with depression were preoperative left ventricular ejection fraction < 50% (Q1, P < 0.05), physical inactivity (Q1, P < 0.05), baseline "at-risk" (Q2, P < 0.05), and baseline "depressed" groups (Q2-Q4, P < 0.05), hospital stay > 7 days (Q2, P < 0.05), postoperative stressful event (Q3 and Q4, P < 0.05), and cardiopulmonary bypass time > 120 minutes (Q4, P = 0.05). Newly depressed patients 6 months postoperatively reported lower IPAQ-short physical activity than depression-free patients (median change, -40 min/wk (interquartile range [IQR], -495 to +255) vs +213 min/wk (IQR, +150 to +830; P < 0.05).

CONCLUSIONS

Up to 40% of patients are depressed after cardiac surgery. Preoperative depression and postoperative stressful events were the strongest independent associations postoperatively. Physical inactivity was associated with preoperative depression and new depression 6 months postoperatively.

Predicting patient expectations about survival following cardiac events

OBJECTIVES

To assess modifiable cognitive and behavioral factors following cardiac events and their association to patients' 3-month survival expectations.

METHODS

Patients (N = 233, 71% male; mean age 68years) hospitalized following cardiac events completed study packets assessing mood, behavior change, health behavior domains, and medical recommendation adherence at hospital discharge and 3 months later.

RESULTS

In univariate analyses, baseline depression, health distress, behavior change, and adherence were associated with positive expectations at follow-up. Multivariate regression analysis found (Adj. R²=0.43) baseline expectations and adherence were significant predictors of expectations for recovery and survival at follow-up (p < .01).

CONCLUSION

Patients' perception of adherence following a cardiac event is a potent predictor of later expectations.

Postoperative neurocognitive dysfunction in patients undergoing cardiac surgery after remote ischemic preconditioning: a double-blind randomized controlled pilot study

Background

Remote ischemic preconditioning (RIPC) has been shown to enhance the tolerance of remote organs to cope with a subsequent ischemic event. We hypothesized that RIPC reduces postoperative neurocognitive dysfunction (POCD) in patients undergoing complex cardiac surgery.

Methods

We conducted a prospective, randomized, double-blind, controlled trial including 180 adult patients undergoing elective cardiac surgery with cardiopulmonary bypass. Patients were randomized either to RIPC or to control group. Primary endpoint was postoperative neurocognitive dysfunction 5–7 days after surgery assessed by a comprehensive test battery. Cognitive change was assumed if the preoperative to postoperative difference in 2 or more tasks assessing different cognitive domains exceeded more than one SD (1 SD criterion) or if the combined Z score was 1.96 or greater (Z score criterion).

Results

According to 1 SD criterion, 52% of control and 46% of RIPC patients had cognitive deterioration 5–7 days after surgery (p = 0.753). The summarized Z score showed a trend to more cognitive decline in the control group (2.16±5.30) compared to the RIPC group (1.14±4.02; p = 0.228). Three months after surgery, incidence and severity of neurocognitive dysfunction did not differ between control and RIPC. RIPC tended to decrease postoperative troponin T release at both 12 hours [0.60 (0.19–1.94) µg/L vs. 0.48 (0.07–1.84) µg/L] and 24 hours after surgery [0.36 (0.14–1.89) µg/L vs. 0.26 (0.07–0.90) µg/L].

Conclusions

We failed to demonstrate efficacy of a RIPC protocol with respect to incidence and severity of POCD and secondary outcome variables in patients undergoing a wide range of cardiac surgery. Therefore, definitive large-scale multicenter trials are needed.

Trial Registration

ClinicalTrials.gov NCT00877305

Clinical and socio-demographic predictors of postoperative vital exhaustion in patients after cardiac surgery

BACKGROUND

Vital exhaustion, a psychological state characterized by extreme fatigue, is an independent predictor of future cardiac events. However, the attributes of vital exhaustion following coronary artery bypass (CABG) surgery are poorly understood.

OBJECTIVE

The study objective was to assess correlates of vital exhaustion following CABG surgery.

METHODS

In a descriptive, exploratory study, 42 patients who had CABG surgery were evaluated for exhaustion 4-8 weeks post-hospital discharge. Demographic and clinical data were obtained from self-report and medical chart review.

RESULTS

Of the total sample (mean age 67.9 ± 12.5, 90% male, 70% Caucasian, 3.12 ± 1.3 grafts), approximately 41% reported exhaustion. When compared to their exhausted post-CABG counterpart, non-exhausted post-CABG patients had a significantly higher frequency of preoperative insulin use. Exhausted patients were significantly more likely to have higher left ventricular ejection fraction ([LVEF], OR: 1.07, p = 0.04), and elevated hemoglobin (OR: 2.98, p = 0.03) and eosinophils (OR: 1.02, p = 0.02) than those who were not exhausted.

CONCLUSION

Clinicians should evaluate all patients for exhaustion post-CABG surgery; patients with elevated LVEF, hemoglobin, and eosinophil levels warrant increased scrutiny.

[Neuropsychological status of patients with low and moderate carotid artery stenoses after the coronary artery bypass surgery]

The purpose of the study was a comparative evaluation of a neurological and neuropsychological status of patients with and without carotid artery stenoses less than 50% after coronary artery bypass grafting. The study involved 65 patients divided into two groups: the first group included 35 patients (mean age 56.2±5.7 years) without carotid artery stenoses, the second group included 30 patients (56.8±5.5 years) with the presence of carotid artery stenoses. Initially, all patients had comparable clinical parameters. Before surgery, the high frequency of asthenic, vestibulopathic and vestibular-atactic syndromes was observed in patients with the presence of low and moderate stenoses of carotid arteries compared to patients without stenoses. After coronary artery bypass grafting, the neurological status of patients became worse in both groups. Patients with the presence of low and moderate stenoses of carotid arteries performed worse on neuropsychological tests one month after surgery.

[Quality of life of patients after coronary bypass surgery: effect of age and personality type D]

AIM

To study effect of age and presence of personality type D on quality of life (QL) of patients in one year after coronary bypass surgery (CBS).

MATERIAL AND METHODS

Assessment of QL before and after surgery was carried out in 408 patients. Two groups were formed: patients younger than 60 years (n=233) and older than 60 years (n=175). Quality of life and presence of personality type D was assessed by questionnaires SF-36 and DS-14, respectively.

RESULTS

In a year after CBS improvement of physical and psychological components of QL (p<0.05) was noted in both groups. Personality type D was more frequent among patients older than 60 years (p<0.01). Patients with personality type D had worse parameters of irrespective of age (p<0.01). Personality type D correlated directly with age QL (p=0.003) and inversely with parameters of QL (p<0.01). Presence of personality type D was an independent predictor of low level of physical (together with index of atherogenecity prior to surgery) and psychological components of QL at multiple logistic regression analysis.

CONCLUSION

Assessment of personality traits of patients before CBS can be helpful for targeted measures aimed at improvement of QL what is especially important for older age groups.

Enhancing the efficacy of heart surgery by optimizing patients' preoperative expectations: study protocol of a randomized controlled trial

In coronary heart disease (CHD) and heart surgery, there is sound evidence for the relationship between patients' expectations and treatment outcome, especially for outcome variables such as disability and quality of life. In addition, patients' expectations have been shown to be modifiable through psychological interventions. Therefore, targeting patients' expectations might offer a promising opportunity to enhance heart surgery outcome. However, few studies have tried to actively change patients' expectations before surgery. The purpose of this clinical trial is to optimize patients' outcome expectations before undergoing coronary artery bypass graft surgery (CABG) through a brief psychoeducational program. The present article describes the study protocol and reports preliminary data on feasibility. Using a randomized controlled design, 180 patients who are scheduled to undergo elective CABG are randomly assigned to either (1) standard medical care (SMC) alone, (2) to an additional expectation manipulation intervention during the 2 weeks before surgery, and (3) to an additional attention-control group ("supportive therapy"). The main goal is to test (a) whether expectation manipulation intervention can optimize patients' expectations and (b) whether optimized expectations lead to enhanced surgery efficacy. The primary outcome variable is illness-related disability 6 months after surgery, whereas secondary outcome variables will be quality of life, return to work, physical activity, and medical outcome variables. First, feasibility data of 36 patients show that the patients appreciated the additional psychological intervention before CABG. Satisfaction of those who received psychological interventions was very high.

Psychological depression and cardiac surgery: a comprehensive review

The psychological and neurological impact of cardiac surgery has been of keen empirical interest for more than two decades although reports showing the prognostic influence of depression on adverse outcomes lag behind the evidence documented in heart failure, myocardial infarction, and unstable angina. The paucity of research to date is surprising considering that some pathophysiological mechanisms through which depression is hypothesized to affect coronary heart disease (e.g., platelet activation, the inflammatory system, dysrhythmias) are known to be substantially influenced by the use of cardiopulmonary bypass. As such, cardiac surgery may provide a suitable exemplar to better understand the psychiatric mechanisms of cardiopathogenesis. The extant literature is comprehensively reviewed with respect to the deleterious impact of depression on cardiac and neuropsychological morbidity and mortality. Research to date indicates that depression and major depressive episodes increase major cardiovascular morbidity risk after cardiac surgery. The association between depressive disorders and incident delirium is of particular relevance to cardiac surgery staff. Contemporary treatment intervention studies are also described along with suggestions for future cardiac surgery research.