Transarterial Embolization for Cystic Artery Pseudoaneurysm Caused by Hepatocellular Carcinoma Rupture in the Gallbladder: A Case Report.

We report the rare case of an 80-year-old man with hepatocellular carcinoma that ruptured in the gallbladder, causing a cystic artery pseudoaneurysm and hemobilia. Emergency transarterial embolization (TAE) successfully controlled the bleeding without causing ischemic cholecystitis. Cone-beam computed tomography angiography was useful in identifying the bleeding branch of the selectively embolized cystic artery. Although the patient had poor liver function (Child-Pugh class C) before TAE, it remarkably improved after embolization due to the resolution of coagulopathy and obstructive jaundice caused by hemobilia. TAE was considered useful for this rare clinical condition.

Comparison of Pharmacological Treatments for Agitated Delirium in the Last Days of Life.

CONTEXT: Antipsychotics are often used in managing symptoms of terminal delirium, but evidence is limited. OBJECTIVES: To explore the comparative effectiveness of haloperidol with as-needed benzodiazepines (HPD) vs. chlorpromazine (CPZ) vs. levomepromazine (LPZ) for agitated delirium in the last days. METHODS: A prospective observational study was conducted in two palliative care units in Japan. Adult cancer patients who developed agitated delirium with a modified Richmond Agitation-Sedation Scale (RASS-PAL) of one or more were included; palliative care specialist physicians determined that the etiology was irreversible; and estimated survival was 3 weeks or less. Patients treated with HPD, CPZ, or LPZ were analyzed. We measured RASS, NuDESC, Agitation Distress Scale (ADS), and Communication Capacity Scale (CCS) on Days 1 and 3. RESULTS: A total of 277 patients were enrolled, and 214 were analyzed (112 in HPD, 50 in CPZ, and 52 in LPZ). In all groups, the mean RASS-PAL score significantly decreased on Day 3 (1.37 to -1.01, 1.87 to -1.04, 1.79 to -0.62, respectively; P < 0.001); the NuDESC and ADS scores also significantly decreased. The percentages of patients with moderate to severe agitation and those with full communication capacity on Day 3 were not significantly different. The treatments were well-tolerated. While one-fourth of HPD group changed antipsychotics, 88% or more of CPZ and LPZ groups continued the initial antipsychotics. CONCLUSION: Haloperidol with as-needed benzodiazepine, chlorpromazine, or levomepromazine may be effective and safe for terminal agitation. Chlorpromazine and levomepromazine may have an advantage of no need to change medications.

Traumatic intrapericardial diaphragmatic hernia.

Traumatic intrapericardial diaphragmatic hernias are very rare; they occur when the central tendon of the diaphragm ruptures, allowing abdominal viscera to herniate into the pericardial sac, causing life-threatening cardiac tamponade. Computed tomography imaging with multiplanar reconstruction is useful in evaluating such cases.

Determinants of Attitude Toward End-of-Life Care Among Junior Physicians: Findings from a Nationwide Survey in Japan.

Background: Physicians' attitudes can be critical in quality end-of-life care. However, the determinants of the attitudes and whether the attitudes can be modified remain unclear. Objectives: To investigate factors correlated with physicians' positive attitudes toward end-of-life care and whether these attitudes are modifiable through acquired factors (e.g., education or mentorship). Design: A nationwide survey was conducted in 300 institutions and selected randomly from 1037 clinical training hospitals in Japan. Participants: From each selected institution, two resident physicians of postgraduate year (PGY) 1 or 2 and two clinical fellows from PGY 3-5 were requested to answer the survey. Measurements: The primary outcome was the Frommelt Attitudes Toward the Care of the Dying (FATCOD) scale score. Factors (e.g., the respondents' age, sex, number of years of clinical experience, training environment, religion, and beliefs around death) were examined for correlation with FATCOD score. Results: In all, 198 physicians and 134 clinical fellows responded to the survey (response rate: 33.0% and 22.3%, respectively). Factors with the strongest correlation with FATCOD scores were mostly unmodifiable factors (e.g., being female and one's beliefs around death). Modifiable factors were also identified-number of patient deaths experienced, level of interest in palliative care, availability of support from senior mentors, and frequency of consultation with nonphysician medical staff. Conclusion: Physicians' attitudes toward end-of-life care correlate more strongly with nonmodifiable factors, but attitudes can be meaningfully improved via mentoring by senior physicians. Future studies are warranted to determine the effective interventions to foster positive attitudes among physicians involved in end-of-life care.

A Case of Small Bowel Arteriovenous Malformation Diagnosed Using Multiphase CT Angiography and Digital Subtraction Angiography.

Small bowel arteriovenous malformation (AVM) is a rare vascular lesion, which should be considered in patients presenting with gastrointestinal bleeding, as it is a high-flow arterial lesion that can cause life-threatening bleeding. Although a primary endoscopic examination is performed in cases of suspected small bowel bleeding, the diagnosis of the causal lesion is sometimes difficult. We are presenting a case of small bowel AVM that could not be diagnosed endoscopically but was successfully detected using multiphase CT images with an appropriate protocol. The AVM diagnosis was confirmed using digital subtraction angiography. An endovascular coil is placed in the draining vein as a surgical resection marker. The AVM was resected successfully without any complications.

Do Types of Opioids Matter for Terminal Cancer Dyspnea? A Preliminary Multicenter Cohort Study.

CONTEXT: Dyspnea is among the most distressing symptoms in the last weeks to days of life (terminal dyspnea). While physicians frequently use parenteral opioids other than morphine for terminal dyspnea, little is known about their effects in cancer patients. OBJECTIVES: To explore the effectiveness and safety of parenteral morphine, oxycodone, and hydromorphone for cancer patients with terminal dyspnea. METHODS: This was a secondary analysis of a multicenter cohort study that consecutively enrolled advanced cancer patients with moderate/severe terminal dyspnea. Participating palliative care physicians initiated parenteral opioids (morphine/oxycodone/hydromorphone), utilizing a standardized treatment algorithm. We examined the dyspnea intensity (Integrated Palliative care Outcome Scale [IPOS]) at 24 and 48 hours. RESULTS: Of 108 patients (mean age = 72), 66 (61%), 34 (32%), and 8 (7.4%) received morphine, oxycodone, and hydromorphone, respectively. At 24 hours, mean dyspnea IPOS scores significantly decreased from 3.0 (standard error (SE) = 0.1) at the baseline to 1.6 (0.1), 2.9 (0.1) to 2.0 (0.2), and 3.5 (0.2) to 1.2 (0.4) in the morphine (P < 0.001), oxycodone (P < 0.001), and hydromorphone (P = 0.011) groups, respectively. At 48 hours, the IPOS scores significantly reduced from 2.9 (0.1) at the baseline to 1.4 (0.1), 2.9 (0.1) to 1.6 (0.2), and 3.5 (0.2) to 1.2 (0.2) in the morphine (P < 0.001), oxycodone (P < 0.001), and hydromorphone (P = 0.004) groups, respectively. No significant differences in mean scores were found among the three groups at 24 (P = 0.080) and 48 hours (P = 0.322). Adverse events were rare. CONCLUSION: Parenteral morphine, oxycodone, and hydromorphone may be similarly effective and safe for cancer patients with terminal dyspnea.

Visualizing How to Use Antipsychotics for Agitated Delirium in the Last Days of Life.

CONTEXT: How physicians use antipsychotics for agitated delirium in the last days of life varies markedly, which could hamper the quality of care. OBJECTIVES: To examine adherence to an algorithm-based treatment for terminal agitated delirium, and explore its effectiveness and safety. METHODS: A single-center, prospective, observational study was conducted in a 27-bed palliative care unit in Japan. All adult cancer patients who developed agitated delirium with a modified Richmond Agitation-Sedation Scale (RASS) of +1 or more were included; the palliative care specialists determined that the etiology was irreversible, the estimated survival was three weeks or less, and the Eastern Cooperative Oncology Group (ECOG) performance status was three or four. Patients were treated with an algorithm to visualize how to use antipsychotics, with the treatment goal defined as no agitation (RASS≤0) or acceptable agitation for patients and families. We provided all patients nonpharmacological management to alleviate the symptoms of delirium and administered antipsychotic medications when the nonpharmacological approach was insufficient. We measured the adherence rate, RASS, Nursing Delirium Screening Scale items 2, 3, 4 (Nu-DESC), and Agitation Distress Scale item 2 (ADS) on days 0, 1, 3, 7, 14, 21, and 24 hours before death. RESULTS: A total of 164 patients were enrolled. Adherence rates were 99, 94, and 89%, and treatment goals were achieved in 66, 83, and 93% on days one, three, and seven, respectively. The mean RASS decreased from +1.41 to -0.84 on day three; Nu-DESC decreased from 4.19 to 1.83, and ADS decreased from 1.54 to 0.38. There were seven severe adverse events (Common Terminology Criteria for Adverse Events (CTCAE) of 3), including aspiration (n = 3), apnea (n = 2), tremor (n = 1), and muscle rigidity (n = 1) on day three. CONCLUSION: The algorithm-based treatment could be feasible, effective, and safe. Visualizing how palliative care specialists provide pharmacological management could be beneficial for nonspecialist clinicians, and clinical, educational, and research implications warrant further empirical testing.

The feasibility and effects of a pharmacological treatment algorithm for cancer patients with terminal dyspnea: A multicenter cohort study.

BACKGROUND: How clinicians treat patients with terminal dyspnea widely varies, which could hamper quality care. We visualized comprehensive pharmacological treatment delivered by palliative care physicians. AIM: To examine adherence to a comprehensive pharmacological treatment algorithm for patients with terminal dyspnea, and to explore its outcomes during 48 h. DESIGN: A multicenter cohort study at five sites (February 2020 to June 2021). SETTING/PARTICIPANTS: We prospectively enrolled consecutive patients with advanced cancer, Eastern Cooperative Oncology Group performance status 3-4, and moderate/severe dyspnea. Participating palliative care physicians initiated algorithm-based treatment. The primary outcome was the proportion of adherence to the treatment algorithm over 24 h (predefined goal, 70%). We evaluated the adherence, goal achievement, and dyspnea level with a numerical rating scale (NRS), as well as adverse events over 48 h. RESULTS: All 108 patients received algorithm-based pharmacological treatment. Among 96 and 87 patients who were alive at 24 and 48 h, respectively, 96 (100%; 95% confidence interval [CI] = 96%-100%) and 82 (94%; 95%CI = 87%-98%) continued to receive the algorithm treatment, respectively, and 66 (69%; 95%CI = 59%-77%) and 64 (74%; 95%CI = 63%-82%) achieved the treatment goals, respectively. Using a complete case analysis with paired t-tests, mean dyspnea NRS scores significantly reduced from 7.3 (standard error, 0.2) at the baseline to 4.9 (0.3) at 24 h (n = 72; p < 0.001), and 7.2 (0.3) at the baseline to 4.6 (0.4) at 48 h (n = 55; p < 0.001). Most adverse events were mild to moderate. CONCLUSIONS: The comprehensive pharmacological treatment algorithm was feasible, and the study data supports its preliminary efficacy and safety. The use of this algorithm may help clinicians improve care for patients with terminal dyspnea.

Determination of Waste Management Workers' Physical and Psychological Load: A Cross-Sectional Study Using Biometric Data.

Waste management workers experience high stress and physical strain in their work environment, but very little empirical evidence supports effective health management practices for waste management workers. Hence, this study investigated the effects of worker characteristics and biometric indices on workers' physical and psychological loads during waste-handling operations. A biometric measurement system was installed in an industrial waste management facility in Japan to understand the actual working conditions of 29 workers in the facility. It comprised sensing wear for data collection and biometric sensors to measure heart rate (HR) and physical activity (PA) based on electrocardiogram signals. Multiple regression analysis was performed to evaluate significant relationships between the parameters. Although stress level is indicated by the ratio of low frequency (LF) to high frequency (HF) or high LF power in HR, the results showed that compared with workers who did not handle waste, those who did had lower PA and body surface temperature, higher stress, and lower HR variability parameters associated with higher psychological load. There were no significant differences in HR, heart rate interval (RRI), and workload. The psychological load of workers dealing directly with waste was high, regardless of their PA, whereas others had a low psychological load even with high PA. These findings suggest the need to promote sustainable work relationships and a quantitative understanding of harsh working conditions to improve work quality and reduce health hazards.

Difficulties Facing Junior Physicians and Solutions Toward Delivering End-of-Life Care for Patients with Cancer: A Nationwide Survey in Japan.

Background: Junior physicians' perceived difficulty in end-of-life care of patients with cancer has not been structurally investigated; therefore, current challenges and solutions in this area remain unknown. Objectives: To identify some difficulties junior physicians face in delivering end-of-life care for patients with cancer and to clarify the support required to reduce these difficulties. Design: A nationwide survey was conducted in over 300 institutions selected randomly from 1037 clinical training hospitals in Japan. Participants: From each of these institutions, two resident physicians of postgraduate year (PGY) 1 or 2, two clinical fellows of PGY 3-5, and an attending physician were requested to respond to the survey. Measurements: The survey investigated issues regarding end-of-life care using the palliative care difficulties scale with two additional domains ("discussion about end-of-life care" and "death pronouncement"). Items related to potential solutions for alleviating the difficulties as well were investigated. Results: A total of 198 resident physicians, 134 clinical fellows, and 96 attending physicians responded to the survey (response rate: 33.0%, 22.3%, and 32.0%). The results revealed that junior physicians face difficulties within specific domains of end-of-life care. The most challenging domain comprised communication and end-of-life discussion with patients and family members, symptom alleviation, and death pronouncement. The most favored supportive measure for alleviating these difficulties was mentorship, rather than educational opportunities or resources regarding end-of-life care. Conclusion: The findings of this study reveal the need for further effort to enrich the mentorship and support systems for junior physicians delivering end-of-life care.

Development and Validation of the Death Pronouncement Burden Scale for Oncology Practice.

Background: Informing families of a patient's death is one of the most challenging responsibilities of clinicians who provide care for terminally ill patients. Although death pronouncement can be a highly stressful event for clinicians, no previous study has reported qualitative characteristics of the burden experienced by clinicians related to death pronouncements. Moreover, no scale has been developed to assess this burden. Objective: This study sought to develop a scale to evaluate clinicians' burden related to death pronouncement (Death Pronouncement Burden Scale for oncology practice [DPBS-oncol]) and examine its reliability and validity in Japan. Methods: We presented the DPBS-oncol to clinicians involved in oncology practice and examined its reliability and discriminant validity. To investigate the test-retest reliability of the scale, the DPBS-oncol was presented a second time to a subsample of the clinicians. Results: Factor analysis required a grouping of the 15 DPBS-oncol items into one factor. Cronbach's α coefficient of the total score of DPBS-oncol was 0.94, and the intraclass correlation coefficient of the total score of DPBS-oncol was 0.89. Regarding discriminant validity, DPBS-oncol total score was moderately correlated with other available scales for assessing clinicians' attitudes to end-of-life care. Conclusion: This study was the first to develop a scale to evaluate clinicians' burden related to death pronouncement. The DPBS-oncol, which includes 15 items, was validated and shown to have sufficient reliability.

Percutaneous needle biopsy under 1.2 Tesla open MRI guidance.

PURPOSE: To evaluate the feasibility of percutaneous needle biopsy using a 1.2 Tesla open magnetic resonance imaging (MRI) system, which has the highest field strength among the currently available open MRI systems. MATERIALS AND METHODS: This single-center prospective study included 10 patients. The primary endpoint was the feasibility of biopsy needle insertion into a target lesion under 1.2 Tesla open MRI guidance. The secondary endpoints included adverse events, device failures, and success of tissue specimen acquisition. Biopsy was performed for targets in various organs using an MRI-compatible coaxial needle system consisting of a 16G introducer needle and 18G semi-automatic biopsy needle. A newly developed body coil with a suitable design for intervention was used for intraprocedural imaging. RESULTS: Biopsy procedures were performed for six musculoskeletal masses, two retroperitoneal masses, one renal mass, and one liver mass. The median diameter of the targets was 4.9 cm (range 2.1-22.8 cm). MRI-guided biopsy needle insertion was feasible in all 10 patients. In total, four grade 1 adverse events (as per Common Terminology Criteria for Adverse Events version 4.0) occurred in three patients. Adequate biopsy specimens for pathological diagnosis were successfully obtained from all 10 patients. CONCLUSION: Percutaneous needle biopsy using a 1.2 Tesla open MRI system was feasible for relatively large targets, especially in the musculoskeletal region.

Needle artifact characteristics and insertion accuracy using a 1.2T open MRI scanner: A phantom study.

PURPOSE: To evaluate the characteristics of needle artifacts and the accuracy of needle insertion using a 1.2 Tesla open magnetic resonance imaging (MRI) system in a phantom. MATERIALS AND METHODS: First, the apparent width of the needle on the MRI and the needle tip position error of 16- and 18-gauge MRI-compatible introducer needles and a 17-gauge cryoneedle were examined with different needle angles (0°, 30°, 45°, 60°, and 90°) to the main magnetic field (B0), sequence types (balanced steady-state acquisition with rewound gradient echo [BASG] and T2-weighted fast spin echo [FSE] sequence), and frequency encoding directions. Second, the accuracy of needle insertion was evaluated after 10 MRI fluoroscopy-guided insertions in a phantom. RESULTS: The apparent needle widths was larger when the angle of the needle axis relative to B0 was larger. The needles appeared larger on BASG than on T2-weighted FSE images, with the largest apparent widths of 16-, 17-, and 18-gauge needles of 14.3, 11.6, and 11.0mm, respectively. The apparent needle tip position was always more distal than the actual position on BASG images, with the largest longitudinal error of 4.0mm. Meanwhile, the 16- and 18-gauge needle tips appeared more proximal on T2-weighted FSE images with right-to-left frequency encoding direction. The mean accuracy of MRI fluoroscopy-guided needle insertion was 3.1mm. CONCLUSION: These experiments clarify the characteristics of needle artifacts in a 1.2 Tesla open MRI. With this system, the MRI fluoroscopy-guided needle insertion demonstrated an acceptable accuracy for clinical use.

Diagnostic performance of open MRI in the flexed knee position for the detection of medial meniscus ramp lesions.

OBJECTIVES: To identify the diagnostic performance of magnetic resonance imaging (MRI) in the knee-flexed position for the detection of meniscal ramp lesions in patients with anterior cruciate ligament tears. MATERIALS AND METHODS: Forty-three patients (mean age 24.5 ± 9.5 years; 21 males, 22 females) with an arthroscopically proven anterior cruciate ligament tear were included in this retrospective study. The presence of the following two important features on MRI was recorded: irregularity of the medial meniscus at the posterior margin, and complete fluid filling between the posterior horn of the medial meniscus and the capsule margin. Findings obtained in arthroscopy served as the reference standard. The diagnostic sensitivity, specificity, and inter-observer agreement were calculated. RESULTS: Sixteen ramp lesions were noted on arthroscopy (37.2%). With an irregularity of the medial meniscus at the posterior margin on MRI, the sensitivity and specificity were 87.5 and 59.3% at 10° knee flexion and 93.8 and 85.2% at 90° flexion, respectively. The complete fluid filling sign on MRI showed sensitivity and specificity of 31.3 and 100% at 10° knee flexion and 87.5 and 100% at 90° flexion, respectively. The concordance between the two observers for the two MRI features was very good (k = 0.70-0.88). CONCLUSION: MRI with the knee in the flexed position improves the diagnostic performance of the detection of meniscal ramp lesions compared with MRI with the knee in the extended position.

Difference in specimen weights with semi-automatic cutting biopsy needles.

PURPOSE: To assess specimen weight difference of six types of semi-automatic cutting biopsy needles. MATERIALS AND METHODS: We compared 18- and 20-gauge needles, one aspiration-type (STARCUT® aspiration-type, TSK Laboratory, Tochigi, Japan) and five non-aspiration-type (MISSION®, BARD, AZ; SuperCore™, Argon Medical Devices, TX; Temno Evolution®, Care Fusion, IL; FINE CORE®, Toray Medical, Tokyo, Japan; Quick-Core®, Cook, IN) needles. Four biopsies were performed with each needle with the longest throw length on an excised bovine liver. The biopsies were repeated with new needles, four times with four different livers. STARCUT® was used both with and without aspiration. RESULTS: Sixteen specimens were obtained with each needle. In needles of gauges, STARCUT® with aspiration provided the heaviest specimen and significantly heavier specimens were obtained with STARCUT® with aspiration (P < 0.05) than five non-aspiration-type needles. The specimen weight differed significantly (P < 0.001) among all 18- and 20-gauge needles. The specimen weights did not differ significantly between aspiration and non-aspiration biopsies with STARCUT® (6.32 vs. 5.97 mg with 18-gauge needle, P = 0.342; 1.95 vs. 1.92 mg with 20-gauge needle, P = 0.886). CONCLUSION: Although STARCUT® with aspiration provided the heaviest specimen, specimen weights were not significantly different between aspiration and non-aspiration biopsies. We assessed the specimen weight difference of six types of semi-automatic cutting biopsy needles. Significantly heavier specimens were obtained with STARCUT® with aspiration than the other needles. The specimen weight differed significantly among all 18- and 20-gauge needles but did not differ significantly between aspiration and non-aspiration biopsies with STARCUT®.

Recurring Local Tumor Progression After Cryoablation of Renal Cell Carcinoma.

We describe three cases of renal cell carcinoma (RCC) with recurring local tumor progression, i.e., local failure following repeat cryoablation for a locally progressed tumor. A second local progression developed in all cases after cryoablation for the first local progression, despite there being a sufficiently large ice-ball margin. In two cases, the second local progression was treated with microwave ablation and controlled in the follow-up. In one case, a third cryoablation was performed, but a third local progression developed after 12 months. These cases suggest that some RCCs may be refractory to cryoablation. In cases of recurring local progression, switching from cryoablation to another ablation modality may be an alternative.

Robotic CT-guided out-of-plane needle insertion: comparison of angle accuracy with manual insertion in phantom and measurement of distance accuracy in animals.

OBJECTIVES: To evaluate the accuracy of robotic CT-guided out-of-plane needle insertion in phantom and animal experiments. METHODS: A robotic system (Zerobot), developed at our institution, was used for needle insertion. In the phantom experiment, 12 robotic needle insertions into a phantom at various angles in the XY and YZ planes were performed, and the same insertions were manually performed freehand, as well as guided by a smartphone application (SmartPuncture). Angle errors were compared between the robotic and smartphone-guided manual insertions using Student's t test. In the animal experiment, 6 robotic out-of-plane needle insertions toward targets of 1.0 mm in diameter placed in the kidneys and hip muscles of swine were performed, each with and without adjustment of needle orientation based on reconstructed CT images during insertion. Distance accuracy was calculated as the distance between the needle tip and the target center. RESULTS: In the phantom experiment, the mean angle errors of the robotic, freehand manual, and smartphone-guided manual insertions were 0.4°, 7.0°, and 3.7° in the XY plane and 0.6°, 6.3°, and 0.6° in the YZ plane, respectively. Robotic insertions in the XY plane were significantly (p < 0.001) more accurate than smartphone-guided insertions. In the animal experiment, the overall mean distance accuracy of robotic insertions with and without adjustment of needle orientation was 2.5 mm and 5.0 mm, respectively. CONCLUSION: Robotic CT-guided out-of-plane needle insertions were more accurate than smartphone-guided manual insertions in the phantom and were also accurate in the in vivo procedure, particularly with adjustment during insertion. KEY POINTS: • Out-of-plane needle insertions performed using our robot were more accurate than smartphone-guided manual insertions in the phantom experiment and were also accurate in the in vivo procedure. • In the phantom experiment, the mean angle errors of the robotic and smartphone-guided manual out-of-plane needle insertions were 0.4° and 3.7° in the XY plane (p < 0.001) and 0.6° and 0.6° in the YZ plane (p = 0.65), respectively. • In the animal experiment, the overall mean distance accuracies of the robotic out-of-plane needle insertions with and without adjustments of needle orientation during insertion were 2.5 mm and 5.0 mm, respectively.