Coronary artery lesions are associated with adverse cardiac events in children undergoing supravalvular aortic stenosis repair.

OBJECTIVES: The aim of this study was to identify the prevalence and anatomic characteristics of coronary artery lesions and their associated postoperative risk in patients undergoing supravalvular aortic stenosis repair. METHODS: The association between structural risk factors, postoperative ST-segment changes, and major adverse cardiac events was explored using logistic regression and the Fisher's exact test. RESULTS: In 51 consecutive patients with supravalvular aortic stenosis treated between 2000 and 2017, a total of 48 coronary lesions were identified in 27 patients (53%). Prominent ostial ridge (type I) was the most common coronary lesion, followed by small ostium with (IIIb) or without (IIIa) diffuse long-segment coronary narrowing, and adhesion of the coronary cusp (type II). There were 54 concomitant coronary procedures, including 43 primary corrections and 11 revisions. Thirty-three patients underwent supravalvular aortic stenosis repair with a bifurcated patch, of which 13 (39.4%) had right coronary artery distortion/kinking requiring patch plication (n = 8) and reimplantation (n = 5). Postoperative major adverse cardiac events (MACE) occurred in 9 patients (17.6%), including 3 deaths, 4 needing mechanical circulatory support, and 6 experiencing ventricular arrhythmias. Twenty-two patients (43.1%) had postoperative ST-segment changes, including 13 early changes that resolved within 24 h and 9 persistent changes lasting >24 h. Patients with type III lesions were associated with postoperative persistent ST-segment change (P = 0.04) and these lesions independently predicted postoperative MACE (P = 0.02). Patients with pre-existing coronary lesions were at elevated risk of right coronary artery distortion/kinking (P = 0.045). CONCLUSIONS: The prevalence of ST-segment changes and MACE is high in patients undergoing supravalvular aortic stenosis repair. The preoperative presence of complex coronary lesions is the most important predictor for postoperative major adverse cardiac events.

Mechanical atrioventricular valve replacement in patients with single ventricle palliation.

OBJECTIVES: Atrioventricular valve (AVV) replacements in patients with single-ventricle circulations pose significant surgical risks and are associated with high morbidity and mortality. METHODS: From 1997 to 2021, 16 consecutive patients with functionally single-ventricle physiology underwent mechanical AVV replacement. Primary outcome was transplant-free survival. Secondary outcomes included major postoperative morbidity. RESULTS: The median age of AVV replacement was 2 years old (interquartile range 0.6-3.8 years). All AVV replacements were performed with a St. Jude Medical mechanical valve, median 24 mm (range, 19-31mm). Extracorporeal membrane oxygenation (ECMO) was required in 4 patients. Operative mortality was 38% (6/16). There were 2 late deaths and 3 transplants. Transplant-free survival was 50% at 1 year, 37.5% at 5 years, and 22% at 10 years. Transplant-free survival was higher for patients with preserved ventricular function (P = 0.01). Difference in transplant-free survival at 1 year was 75% vs 25%, at 5 years was 62.5% vs 12.5% and at 10 years was 57% vs 0%. Three (19%) patients had complete heart block requiring permanent pacemaker insertion. 6 of 13 patients (46%) patients reached Fontan completion (3 patients operated at/after Fontan). Significant bleeding events occurred in 8 patients (50%) with 3 patients suffering major cerebrovascular accidents. There were 6 events of valve thrombosis in 5 patients, resulting in 2 deaths and 2 heart transplants. CONCLUSIONS: Mechanical valve replacement carries significant morbidity and mortality risk. While it successfully salvages about half of patients with preserved ventricular function, careful consideration of alternative options should be made before embarking upon mechanical valve replacement.

Branch pulmonary artery stenosis after arterial switch operation: The effect of preoperative anatomic factors on reintervention.

BACKGROUND: We hypothesized that preoperative patient characteristics and branch pulmonary artery (PA) size might influence the rate of postoperative branch PA reintervention in patients with transposition of the great arteries who undergo the arterial switch operation (ASO). METHODS: The retrospective single-center study included 262 consecutive (2008-2017) newborns who underwent the ASO. Demographic characteristics, echocardiography, and clinical outcomes were reviewed. Competing risk analysis modeled incidence of branch PA reintervention and cause-specific hazard regression for predictors analyses. RESULTS: Median age and weight were 7 (range, 5-11) days and 3.4 (range, 3.1-3.8) kg, respectively. Various types of early branch PA reinterventions (concomitant revision or reintervention during the intensive care unit stay) were required in 28 (10.7%) patients. These patients had prolonged ventilation (P < .001), intensive care unit duration (P < .001), worse right ventricular function (P = .043), and high in-hospital mortality (P = .010). Branch PA dimensions significantly decreased immediately after ASO compared with baseline measurements. The median follow-up duration was 20.8 (range, 0.9-44.7) months. Branch PA reintervention was common among survivors without early reinterventions (9.4%), and even more frequent among those with early reinterventions (25%). Subsequent reintervention (all catheter-based) was necessary for more than one-third of patients after initial branch PA reintervention. The multivariable analysis showed preoperative dimension of the left PA (hazard ratio, 0.527 [95% CI, 0.337-0.823]; P = .005), and right PA (hazard ratio, 0.503 [95% CI, 0.318-0.796]; P = .003) were independently associated with late branch PA reinterventions. CONCLUSIONS: Branch PA reintervention was common and often required surgical or catheter-based reinterventions after ASO. PA branch diameters became significantly smaller after ASO. Smaller preoperative branch PA predicted late branch PA reintervention, indicating a smaller margin of geometrical tolerance to this effect.

Anterior Translocation of the Right Pulmonary Artery to Relieve Bronchial Compression in Truncus Arteriosus With Interrupted Aortic Arch.

We report an anterior translocation of the right pulmonary artery procedure to relieve severe left bronchial obstruction that was caused by right pulmonary artery stent placement in a 1-year-old patient with truncus arteriosus and interrupted aortic arch. After neonatal repair, the patient re-presented with severe truncal valve regurgitation, right pulmonary artery stenosis, and severe biventricular dysfunction, which was treated with truncal valve repair and right pulmonary artery plasty. The patient suffered from left bronchial compression from right pulmonary artery stent placement, which was successfully treated by the translocation procedure. Bronchial stenosis was successfully relieved by the translocation procedure. Indications, advantages, and disadvantages of this procedure are discussed.

Examining the course of transitions from hospital to home-based palliative care: A mixed methods study.

BACKGROUND: Hospital-to-home transitions in palliative care are fraught with challenges. To assess transitions researchers have used patient reported outcome measures and qualitative data to give unique insights into a phenomenon. Few measures examine care setting transitions in palliative care, yet domains identified in other populations are likely relevant for patients receiving palliative care. AIM: Gain insight into how patients experience three domains, discharge readiness, transition quality, and discharge-coping, during hospital-to-home transitions. DESIGN: Longitudinal, convergent parallel mixed methods study design with two data collection visits: in-hospital before and 3-4 weeks after discharge. Participants completed scales assessing discharge readiness, transition quality, and post discharge-coping. A qualitative interview was conducted at both visits. Data were analyzed separately and integrated using a merged transformative methodology, allowing us to compare and contrast the data. SETTING AND PARTICIPANTS: Study was set in two tertiary hospitals in Toronto, Canada. Adult inpatients (n = 25) and their caregivers (n = 14) were eligible if they received a palliative care consultation and transitioned to home-based palliative care. RESULTS: Results were organized aligning with the scales; finding low discharge readiness (5.8; IQR: 1.9), moderate transition quality (66.7; IQR: 33.33), and poor discharge-coping (5.0; IQR: 2.6), respectively. Positive transitions involved feeling well supported, managing medications, feeling well, and having healthcare needs met. Challenges in transitions were feeling unwell, confusion over medications, unclear healthcare responsibilities, and emotional distress. CONCLUSIONS: We identified aspects of these three domains that may be targeted to improve transitions through intervention development. Identified discrepancies between the data types should be considered for future research exploration.

"Going Home [Is] Just a Feel-Good Idea With No Structure": A Qualitative Exploration of Patient and Family Caregiver Needs When Transitioning From Hospital to Home in Palliative Care.

CONTEXT: Hospital-to-home transitions, particularly at the end of life, can be challenging for patients and their family caregivers. Therefore, there is a need to better understand gaps in expectations and experiences of these transitions. Theory can inform the creation of an intervention aimed at improving the hospital-to-home transition. OBJECTIVES: 1) Explore patients' and caregivers' expectations and subsequent experiences of the hospital-to-home transition while receiving palliative care, and 2) build a substantive grounded theory to enhance the understanding of hospital-to-home transitions from the patient and caregiver perspective. METHODS: Longitudinal, prospective qualitative study with semistructured interviews at hospital discharge and three to four weeks after discharge home. We recruited adults receiving inpatient palliative care who were being discharged to home-based palliative care, and their family caregivers from two academic health centers in Toronto, Canada. Thirty-nine participants: 18 patients, 7 caregivers, and 7 patient-caregiver dyads participated. We conducted 52 interviews. We conducted a grounded theory qualitative study. RESULTS: Through examining the expectations and subsequent experiences of the transition, and exploring the gaps between them, we identified various transitions needs: health and well-being needs, and practical needs (i.e., transportation, setting up the home for care, care providers in the home). Several enablers and disablers modified the likelihood of needs being met (e.g., caregiver role, education on symptom management, uncertainty, financial resources). CONCLUSION: Our substantive grounded theory highlighted potentially measurable constructs that can be further tested. Future interventions should target the enablers/disablers to ensure health and well-being and practical needs are met in the transition.

Transitioning From Hospital to Palliative Care at Home: Patient and Caregiver Perceptions of Continuity of Care.

CONTEXT: Continuity of care is important at improving the patient experience and reducing unnecessary hospitalizations when transitioning across care settings, especially at the end of life. OBJECTIVE: To explore patient and caregiver understanding and valuation of "continuity of care" while transitioning from an in-hospital to a home-based palliative care team. METHODS: Longitudinal qualitative design using semistructured interviews conducted with patients and their caregivers before and after transitioning from hospital to palliative care at home. Interviews were audio-recorded and transcribed verbatim. Data were analyzed using thematic analysis within a postpositivist framework. Thirty-nine participants (18 patients, seven caregivers, and seven patient-caregiver dyads) were recruited from two acute care hospitals, wherein they received care from an inpatient palliative care consultation team and transitioned to home-based palliative care. RESULTS: Patients had a mean age of 68 years, 60% were female and 60% had a diagnosis of cancer. Caregivers had a mean age of 62 years and 50% were female. Participants perceived continuity of care to occur in three ways, depending on which stage they were at in their hospital-to-home transition. In hospital, continuity of care was experienced, as consistency of information exchanged between providers. During the transition from hospital to home, continuity of care was experienced as consistency of treatments. When receiving home-based palliative care, continuity of care was experienced as having consistent providers. CONCLUSION: Patients' and their caregivers' valuation of continuity of care was dependent on their stage of the hospital-to-home transition. Optimizing continuity of care requires an integrated network of providers with reliable information transfer and communication.

"No thanks, I don't want to see snakes again": a qualitative study of pain management versus preservation of cognition in palliative care patients.

BACKGROUND: Towards the end of life, use of opioid analgesics becomes more common in patients to control pain and improve quality of life. While pain medication may help manage pain, unwanted cognitive side effects are frequently noted. This balancing act presents a trade-off for patients between pain relief and adverse effects, where the desire to relieve pain must be evaluated against the desire to maintain cognitive clarity and may represent a difficult decision for patients receiving palliative care. Our goal was to understand how patients' decision making about pain medications balances the pain relief from those medications against the cognitive decline often associated with them. METHODS: We conducted qualitative semi-structured interviews with patients receiving home-based palliative care from a program in Toronto, Canada. Interview recordings were transcribed and analyzed using thematic analysis. RESULTS: Thirty-one interviews were conducted. Some patients preferred cognitive preservation over pain management because of a sense that cognition is central to their identity, the desire to maintain lucidity, a desire to continue participating in work or hobbies, and fear of addiction. Conversely, some patients preferred pain management over cognitive preservation because of a desire to avoid suffering, an inability to sleep without medications, or an acceptance of some cognitive compromise. A few patients attempted to find balance through tapering drugs, limiting their use of breakthrough analgesic doses, or using alternative strategies. CONCLUSIONS: Decision making around pain and pain management is a highly preference-sensitive process-with no clear right or wrong decisions, only the preferences of each patient. The findings from this study may influence the design of future patient-facing decision aids around pain management. Future studies should pilot interventions to better assist patients with this decision.

Low preoperative superior vena cava blood flow predicts bidirectional cavopulmonary shunt failure.

BACKGROUND: In this study we sought to determine whether preoperative superior vena cava (SVC) blood flow measured using cardiac magnetic resonance (CMR) predicts physiology and clinical outcome after bidirectional cavopulmonary shunt (BCPS). METHODS: The retrospective single-center study included 65 (2012-2017) patients who underwent BCPS. Preoperative CMR imaging, echocardiography, catheterization, and clinical outcomes were reviewed. SVC flow was measured using phase contrast CMR. The Kaplan-Meier method and Cox regression was used for BCPS takedown-free survival and predictor analyses. RESULTS: The absolute and indexed SVC flow was 0.5 (interquartile range [IQR], 0.4-0.7) L/min and 1.7 (IQR, 1.4-2.0) L/min/mm2 respectively, which was comparable with the SVC blood flow volume previously measured. The median age and body weight at BCPS was 6.5 (IQR, 5.5-8.5) months and 6.9 (IQR, 6.0-7.7) kg. After follow-up, at a median of 17.1 (IQR, 7.9-41.3) months, 14 patients (21.5%) underwent the Fontan completion and 40 (61.5%) with BCPS physiology were waiting for the Fontan completion. The 11 remaining patients (16.9%), included those who underwent takedown (n = 7; 10.8%) or died with a BCPS (n = 4; 6.2%). Severe hypoxia was the leading cause of mortality, directly accounting for two-thirds of deaths (66.6%; 6/9). The BCPS takedown-free survival was 96.8% at 6 months, and 79.9% at 3 years. Preoperative SVC blood flow was significantly positively correlated with early post-BCPS arterial saturation (P = .00). The multivariable analysis showed SVC flow was the only factor associated with BCPS failure (hazard ratio, 0.186; P = .04) among the predictors related to the pre-BCPS anatomy and physiology. CONCLUSIONS: SVC blood flow might be as critically important as pulmonary artery anatomic and physiologic parameters in the evaluation of BCPS candidacy in the single-ventricle population.

Loss of relationship: a qualitative study of families and healthcare providers after patient death and home-based palliative care ends.

BACKGROUND: Home-based palliative care is care of the patient in their home, while doctors and other healthcare providers (HCPs) make visits as required. Family involvement naturally cultivates a relationship between HCPs and the family. Once the patient dies and home-based palliative care ends, this relationship is abruptly terminated, which may be challenging to both the family and the HCPs. The objective of this study was to understand the thoughts and opinions of HCPs and families on their encountered loss of relationship at the end of home-based palliative care. METHODS: Perceptions of 63 participants (32 HCPs and 31 family members) were explored using semi-structured interviews and the qualitative research methodologies of grounded theory. HCPs were interviewed at the Temmy Latner Centre for Palliative Care (TLCPC), a home-based palliative care group of physicians, and 2 hospitals in Toronto, while family members were recruited from TLCPC's records of deceased patients. RESULTS: Six overarching themes, relating to HCP-family relationship dynamics, the experience of loss of relationship, and potential solutions, were derived from the data: (I) home palliative care is intimate; (II) dissatisfaction is experienced with abrupt relationship ending; (III) families benefit from open communication, especially after patient death; (IV) HCPs recognize the insufficiency in bereavement resources; (V) benefits are recognized for a system to ease loss of relationship, and lastly; (VI) challenges with introducing such a system concern HCP. CONCLUSIONS: Overall, families and HCPs do not like the loss of relationship post-patient death, and recognize the potential benefits of an approach that would allow for communication going forward.

Impact of Chronic Pain on Treatment Prognosis for Patients with Opioid Use Disorder: A Systematic Review and Meta-analysis.

BACKGROUND: While a number of pharmacological interventions exist for the treatment of opioid use disorder, evidence evaluating the effect of pain on substance use behavior, attrition rate, and physical or mental health among these therapies has not been well established. We aim to evaluate these effects using evidence gathered from a systematic review of studies evaluating chronic non-cancer pain (CNCP) in patients with opioid use disorder. METHODS: We searched the Medline, EMBASE, PubMed, PsycINFO, Web of Science, Cochrane Database of Systematic Reviews, ProQuest Dissertations and theses Database, Cochrane Central Register of Controlled Trials, World Health Organization International Clinical Trials Registry Platform Search Portal, and National Institutes for Health Clinical Trials Registry databases to identify articles evaluating the impact of pain on addiction treatment outcomes for patients maintained on opioid agonist therapy. RESULTS: Upon screening 3,540 articles, 14 studies with a combined sample of 3,128 patients fulfilled the review inclusion criteria. Results from the meta-analysis suggest that pain has no effect on illicit opioid consumption [pooled odds ratio (pOR): 0.70, 95%CI 0.41-1.17; I (2) = 0.0] but a protective effect for reducing illicit non-opioid substance use (pOR: 0.57, 95%CI 0.41-0.79; I (2) = 0.0). Studies evaluating illicit opioid consumption using other measures demonstrate pain to increase the risk for opioid abuse. Pain is significantly associated with the presence of psychiatric disorders (pOR: 2.18; 95%CI 1.6, 2.9; I (2) = 0.0%). CONCLUSION: CNCP may increase risk for continued opioid abuse and poor psychiatric functioning. Qualitative synthesis of the findings suggests that major methodological differences in the design and measurement of pain and treatment response outcomes are likely impacting the effect estimates.