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The absence of a small portion of the pericardium is termed pericardial defect. This rare entity can be either acquired or congenital. The prevalence of congenital pericardial defect is exceedingly rare, which is approximately 0.002–0.004% of surgical and pathologic series. The most common type is the absence of the entire left side of pericardium, seen in 67% of all patients with a congenital pericardial defect. Other varieties are incredibly uncommon. Congenital pericardial defect has a male preponderance with a male to female ratio of 3:1, and familial occurrence is uncommon. We report a case of left partial congenital pericardial defect detected incidentally in a 22-year-old man who presented with recurrent left spontaneous pneumothorax. He underwent video-assisted thoracoscopic bullectomy and intraoperatively, we discovered a left partial pericardial defect which exposed the left atrial appendage. Although generally asymptomatic, patients may present with non-specific cardiac symptoms such as atypical chest pain. Partial pericardial defects have an increased risk of herniation of the whole left atrium, the left atrial appendage or the ventricles. If this occurs, cardiac strangulation may occur, leading to necrosis and sudden death. Cardiac MRI is a sensitive tool and will demonstrate the absence of preaortic pericardial recess. In conclusion, no surgical intervention is required in cases of congenital pericardial defect, unless the patient is symptomatic due to complications. If detected incidentally during cardiac or thoracic surgery, the best may be to leave it alone., Highlights • A congenital pericardial defect is exceedingly rare, which is approximately 0.002–0.004% of surgical and pathologic series. • We report a case of partial congenital pericardial defect in a patient who presented with recurrent spontaneous pneumothorax. • Partial pericardial defects have an increased risk of herniation causing cardiac strangulation. • Cardiac MRI is a sensitive tool and will demonstrate the absence of preaortic pericardial recess. • If detected incidentally during an unrelated cardiac or thoracic surgery, the best option may be to leave it alone.

OBJECTIVES: To investigate the specific clinical features of pain following cardiac surgery and evaluate the information derived from different pain measurement tools used to quantify and describe pain in this population. METHODS: A prospective observational study was undertaken at two tertiary care hospitals in Australia. Seventy-two (72) adults (mean age, 63±11 years) were included following cardiac surgery via a median sternotomy. Participants completed the Patient Identified Cardiac Pain using numeric and visual prompts (PICP), the McGill Pain Questionnaire-Short Form version 2 (MPQ-2) and the Medical Outcome Study 36-item version 2 (SF-36v2) Bodily Pain domain (BP), which were administered prior to hospital discharge, 4 weeks and 3 months postoperatively. RESULTS: Participants experienced a high incidence of mild (n=45, 63%) to moderate (n=22, 31%) pain prior to discharge, which reduced at 4 weeks postoperatively: mild (n=28, 41%) and moderate (n=5, 7%) pain; at 3 months participants reported mild (n=14, 20%) and moderate (n=2, 3%) pain. The most frequent location of pain was the anterior chest wall, consistent with the location of the surgical incision and graft harvest. Most participants equated "pressure/weight" to "aching" or a "heaviness" in the chest region (based on descriptor of pain in the PICP) and the pain topography was persistent at 4 weeks and 3 months postoperatively. Each pain measurement tool provided different information on pain location, severity and description, with significant change (p

Objective: The aim of this study was to investigate the psychometric properties of the shortened version of the Functional Difficulties Questionnaire (FDQ). Design: This is a multisite observational study. Setting: The study was conducted in four tertiary care hospitals in Australia. Subjects: A total of 225 participants, following cardiac surgery, were involved in the study. Intervention: Participants completed the original 13-item FDQ and other measures of physical function, pain and health-related quality of life. Method: Item reduction was utilized to develop the shortened version. Reliability was evaluated using intraclass correlation coefficients (ICCs), the smallest detectable change and Bland–Altman plots. The validity and responsiveness were evaluated using correlation. Anchor and distribution-based calculation was used to calculate the minimal clinical important difference (MCID). Results: Item reduction resulted in the creation of a 10-item shortened version of the questionnaire (FDQ-s). Within the cohort of cardiac surgery patient, the mean (SD) for the FDQ-s was 38.7 (19.61) at baseline; 15.5 (14.01) at four weeks and 7.9 (12.01) at three months. Validity: excellent internal consistency (Cronbach’s α > 0.90) and fair-to-excellent construct validity (>0.4). Reliability: internal consistency was excellent (Cronbach’s α > 0.8). The FDQ-s had excellent test–retest reliability (ICC = 0.89–0.92). Strong responsiveness overtime was demonstrated with large effect sizes (Cohen’s d > 1.0). The MCID of the FDQ-s was calculated between 4 and 10 out of 100 (in cm). Conclusion: The FDQ-s demonstrated robust psychometric properties as a measurement tool of physical function of the thoracic region following cardiac surgery.