Tertiary Center In Taiwan Research Articles

Prolonged video capsule endoscopy examination durations can improve capsule endoscopy completeness.

Capsule endoscopy (CE) is useful for managing patients with suspected small bowel diseases. However, the effect of prolonged CE examination time on CE performance is unknown. To evaluate the completeness and diagnostic yield of prolonged CE imaging in patients with suspected small bowel bleeding. We reviewed consecutive records of adult CE examinations via an overnight protocol from Jan 2016 to Dec 2020 at a tertiary center in Taiwan. We subcategorized the CE records by recording length into within 8h, within 12h and throughout the whole procedure and compared the completion rate and diagnostic yield between the groups. Cochran's Q test was used for statistical analysis. A total of 88 patients were enrolled with 78.4% inpatients (median age 72 years). The small bowel evaluation completion rate was 93.2%, which was significantly greater than the 79.5% rate within 12h (p = 0.025) and the 58% rate within 8h (p < 0.001). The diagnostic yield was 83% in the whole-course overnight study, which was significantly greater than the 71.6% diagnostic yield within 8h (p < 0.001) and similar to the 81.8% diagnostic yield within 12h. Prolonged overnight CE examination can improve the completion rate and diagnostic yield and should be considered for routine clinical practice.

Morphological Change in Optical Coherence Tomography and Functional Outcomes in Epiretinal Membrane Peeling with or without SF6 Tamponade.

The present study compares the anatomical and functional outcomes (best-corrected visual acuity (BCVA) and central macular thickness (CMT)) among membrane peeling with or without SF6 tamponade in patients with epiretinal membrane. We retrospectively reviewed patients diagnosed with macular pucker who underwent pars plana vitrectomy and membrane peeling in a tertiary center in Taiwan from January 2021 to December 2022. Subjects were categorized into with or without SF6 tamponade groups (SF6 group and BSS group). Postoperative intraocular pressure and complications were documented. Logistic regression analyses were performed to identify the prognostic factors during follow-up. A total of 89 eyes were enrolled, including 34 eyes in the BSS group and 55 eyes in the SF6 group. The mean age was 66 years old, and a female predilection was demonstrated. Both groups possessed statistically significant improvement in BCVA and CMT after the operation. There was no significant difference in CMT between the groups at any time of observation, yet we observed significant differences in baseline BCVA and BCVA at last follow-up among the two groups. Both groups yielded an approximate enhancement of LogMAR 0.3 in BCVA postoperatively. There was no significant difference noted in postoperative IOP between the two groups. Membrane peeling with or without SF6 tamponade yields comparable outcomes anatomically and functionally. This may indicate that SF6 tamponade for idiopathic macular pucker surgery may not provide extra benefit, and therefore warrants reconsideration as standard procedure.

Invasive lactobacillus infection in pediatric patients in a tertiary center in Taiwan – 16 years’ experience and literature review

BackgroundLactobacilli are common microorganisms in the human body. Some species were used as probiotics supplement for many purposes such as preventing necrotizing enterocolitis, or improving allergic diseases or diarrhea. Previously, Lactobacillus infection was thought of as contamination due to its low pathogenicity. However, there have been reports of invasive Lactobacillus infection in immunocompromised patients or patients with comorbidities. The purpose of this study was to analyze the clinical characteristics, antibiotic treatment and outcomes of pediatric patients with invasive Lactobacillus infection. MethodsWe retrospectively reviewed pediatric patients diagnosed with invasive Lactobacillus infection between 2004 and 2020. Invasive Lactobacillus infection was diagnosed if sterile sites yielded Lactobacillus spp. Clinical manifestations, chronic diseases, potential predisposing factors, medical treatments, antimicrobial susceptibility tests and outcomes were recorded. ResultsFifteen pediatric patients were diagnosed with invasive Lactobacillus infection, accounting for 2.4% of total invasive Lactobacillus infections during the 16-year period. Eleven infections were bacteremia, two were intra-abdominal infections, and two were biliary tract infections. Fever was the most common symptom. Potential predisposing factors were immunocompromised status, central venous device, prolonged antibiotics use and receiving supplemented probiotics for at least one week. All patients survived with favorable outcomes. Most pathogens were identified as Lactobacillus spp, and two were Lactobacillus rhamnosus, which were related to supplemented probiotics. The antimicrobial susceptibility tests showed that Lactobacilli were all sensitive to ampicillin but resistant to glycopeptides. ConclusionInvasive Lactobacillus infections in pediatric patients were rare. Despite its low pathogenicity, Lactobacillus could cause invasive infection in those immunocompromised patients.

Strokectomy in Malignant Middle Cerebral Artery Infarction: A 20-Year Experience from a Tertiary Center in Taiwan

Strokectomy in Malignant Middle Cerebral Artery Infarction: A 20-Year Experience from a Tertiary Center in Taiwan

The Skeletal Oncology Research Group Machine Learning Algorithm (SORG-MLA) for predicting prolonged postoperative opioid prescription after total knee arthroplasty: an international validation study using 3,495 patients from a Taiwanese cohort

BackgroundPreoperative prediction of prolonged postoperative opioid use (PPOU) after total knee arthroplasty (TKA) could identify high-risk patients for increased surveillance. The Skeletal Oncology Research Group machine learning algorithm (SORG-MLA) has been tested internally while lacking external support to assess its generalizability. The aims of this study were to externally validate this algorithm in an Asian cohort and to identify other potential independent factors for PPOU.MethodsIn a tertiary center in Taiwan, 3,495 patients receiving TKA from 2010–2018 were included. Baseline characteristics were compared between the external validation cohort and the original developmental cohorts. Discrimination (area under receiver operating characteristic curve [AUROC] and precision-recall curve [AUPRC]), calibration, overall performance (Brier score), and decision curve analysis (DCA) were applied to assess the model performance. A multivariable logistic regression was used to evaluate other potential prognostic factors.ResultsThere were notable differences in baseline characteristics between the validation and the development cohort. Despite these variations, the SORG-MLA (https://sorg-apps.shinyapps.io/tjaopioid/) remained its good discriminatory ability (AUROC, 0.75; AUPRC, 0.34) and good overall performance (Brier score, 0.029; null model Brier score, 0.032). The algorithm could bring clinical benefit in DCA while somewhat overestimating the probability of prolonged opioid use. Preoperative acetaminophen use was an independent factor to predict PPOU (odds ratio, 2.05).ConclusionsThe SORG-MLA retained its discriminatory ability and good overall performance despite the different pharmaceutical regulations. The algorithm could be used to identify high-risk patients and tailor personalized prevention policy.

Comparison of eight modern preoperative scoring systems for survival prediction in patients with extremity metastasis.

Survival is an important factor to consider when clinicians make treatment decisions for patients with skeletal metastasis. Several preoperative scoring systems (PSSs) have been developed to aid in survival prediction. Although we previously validated the Skeletal Oncology Research Group Machine-learning Algorithm (SORG-MLA) in Taiwanese patients of Han Chinese descent, the performance of other existing PSSs remains largely unknown outside their respective development cohorts. We aim to determine which PSS performs best in this unique population and provide a direct comparison between these models. We retrospectively included 356 patients undergoing surgical treatment for extremity metastasis at a tertiary center in Taiwan to validate and compare eight PSSs. Discrimination (c-index), decision curve (DCA), calibration (ratio of observed:expected survivors), and overall performance (Brier score) analyses were conducted to evaluate these models' performance in our cohort. The discriminatory ability of all PSSs declined in our Taiwanese cohort compared with their Western validations. SORG-MLA is the only PSS that still demonstrated excellent discrimination (c-indexes>0.8) in our patients. SORG-MLA also brought the most net benefit across a wide range of risk probabilities on DCA with its 3-month and 12-month survival predictions. Clinicians should consider potential ethnogeographic variations of a PSS's performance when applying it onto their specific patient populations. Further international validation studies are needed to ensure that existing PSSs are generalizable and can be integrated into the shared treatment decision-making process. As cancer treatment keeps advancing, researchers developing a new prediction model or refining an existing one could potentially improve their algorithm's performance by using data gathered from more recent patients that are reflective of the current state of cancer care.

Surgical decisions and outcomes of rhegmatogenous retinal detachment during the coronavirus disease 2019 pandemic: Data from a tertiary referral center in Taiwan.

To assess changes in surgical decisions and outcomes of rhegmatogenous retinal detachment (RRD) during the COVID-19 pandemic at a tertiary center in Taiwan. Patients undergoing pars plana vitrectomy (PPV) or scleral buckling (SB) for primary RRD during Taiwan's first wave of domestic COVID-19 cases surge between May and July 2021 (COVID cohort, n = 100) were compared to controls in the closest pre-COVID year, 2019 (pre-COVID cohort, n = 121). The COVID cohort had significantly worse RRD presentation, received more PPV (alone or combined with SB (PPV + SB)) and less SB alone, and had comparable single-surgery anatomic success (SSAS) rates. In patients who underwent PPV, more underwent PPV + SB instead of PPV alone. The decision to combine SB in PPV surgery was significantly affected by the COVID pandemic (odds ratio [OR], 3.1860 [95% confidence interval (CI), 1.1487-8.8361]). However, a shorter duration of symptoms before the first presentation (0.9857 [95% CI, 0.9720-0.9997]) was the only factor related to SSAS, whereas the surgical method had no association. The SSAS rate remained close to or over 90% in patients with a duration of symptoms before surgery ≤4 weeks but dropped to 83.3% in patients with duration >4 weeks. During the COVID-19 pandemic, worse RRD presentations led to a shift in preference for PPV over SB alone as the primary surgery. The pandemic affected surgeons' decision to combine SB during PPV. Nevertheless, SSAS was only associated with the duration of symptoms but not with surgical methods.

Survival analysis of malignant peripheral nerve sheath tumor: Experience of a tertiary center in Taiwan.

This study aimed to analyze the demographic characteristics and prognostic factors of malignant peripheral nerve sheath tumor (MPNST) in a Taiwanese population. Single-center treatment outcomes were also presented. This retrospective cohort study analyzed the medical records of 54 patients with pathological diagnoses of MPNSTs from 2005 to 2021 at a single institution. The primary endpoint was the 5-year overall survival rate of MPNST, and the secondary endpoint was recurrence-free 5-year survival. Variables including patient characteristics, metastasis status at initial diagnosis, and surgical outcomes were analyzed with competing risk analysis. Among all 41 eligible patients diagnosed with MPNST, female predominance was noted, and the median age at diagnosis was 44 years. The most common site of lesion was found at the trunk (46.34%), and eight patients were diagnosed with notable metastasis. Twelve patients were diagnosed with type 1 neurofibromatosis (NF1). The 5-year overall survival rate was 36.84% and the 5-year recurrence-free survival was 28.95%. Metastasis diagnosed at presentation, large lesion sizes, and recurrence were identified as significant poor prognostic factors of survival. Metastasis diagnosed at presentation was identified as the only significant risk factor of recurrence. In our series, metastasis diagnosed at presentation, large lesion sizes, and recurrence were identified as significant poor prognostic factors of survival. Metastasis was also identified as the only significant risk factor of recurrence. NF1-associated MPNSTs presented with significantly larger tumor sizes and additional treatment postoperatively did not significantly improve survival. The limitations of this study include its retrospective nature and sample size.

Epidemiology and risk factors of pediatric pneumonia in a tertiary center in Taiwan

Background: Pneumonia is a common disease in children, and causes a substantial burden both on patients and health care systems. Comparison between community-acquired pneumonia (CAP) and hospital-acquired pneumonia (HAP) and the prognosticator of hospitalized pneumonia patients in Taiwan is unclear. Materials and Methods: In this retrospective study, data from hospitalized children aged <18 years with a diagnosis of pneumonia from 2012 to 2013 in our institutional database were investigated. Demographic characteristics, laboratory data, identified pathogens, and treatment course was recorded for analysis. A value of P < 0.05 was considered statistically significant. Results: A total of 548 patients with 598 episodes of pneumonia (male/female ratio = 1.08) were enrolled in the database. Underlying diseases are more common in patients with HAP than those with CAP. Patients with HAP had a higher mortality and length of hospital and intensive care unit (ICU) stay than that of those with CAP. C-reactive protein (CRP) and band form plus segment neutrophil percentage were higher in patients with CAP. In multivariate analysis of CAP group, underlying disease, CRP, and band form plus segment neutrophil percentage were independent prognosticators of admission to ICU. Underlying disease and CRP were independent prognosticators of mortality. The most common pathogens were respiratory syncytial virus, Streptococcus pneumoniae, and influenza virus. Conclusions: Patients with HAP had significantly higher mortality rates and longer lengths of hospital and ICU stay than those with CAP. CRP was an independent prognosticator of admission to ICU and mortality in patients with CAP, and also served as a prognosticator of mortality in patients with HAP.

The spectrum of intestinal mature T- and NK-cell neoplasms in a tertiary center in Taiwan with a high frequency of perforation.

Primary intestinal T-cell lymphomas (PITLs) comprise enteropathy-associated T-cell lymphoma (EATL), monomorphic epitheliotropic intestinal T-cell lymphoma (MEITL), extranodal NK/T-cell lymphoma (ENKTL), anaplastic large cell lymphoma (ALCL), and intestinal T cell lymphoma, NOS (ITCL-NOS). MEITL is composed of monomorphic medium cells expressing CD8 and CD56, with a cytotoxic phenotype. We retrospectively analyzed 77 cases of intestinal T-cell lymphomas, 71 primary and six secondary, at a tertiary center in Taiwan from 2001 to 2021. Perforation occurred in 57 (74%) patients, including 56 (73%) at presentation and one after chemotherapy. The primary cases included MEITL (68%), ENKTL (14%), ITCL-NOS (13%), ALCL (4%), and EATL (1%). The perforation rate was 90%, 70%, and 22% in MEITL, ENKTL, and ITCL-NOS cases, respectively (p<0.0001, Fisher's exact test). Most (75%; n=36) MEITL cases were typical; while seven (15%) had atypical morphology and five (10%) exhibited atypical immunophenotype. The tumor cells of ITCL-NOS were pleomorphic, with various expression of CD8 or CD56. All METIL, ITCL-NOS and ALCL cases were negative for EBER; while all ENKTL cases, either primary or secondary, were positive for cytotoxic granules and EBER. The prognosis of PITL was poor, with a medium survival of 7.0, 3.3, and 3.7 months among patients with MEITL, ENKTL, and ITCL-NOS, respectively. Of the six secondary cases, the primary tumors orginated from nasal ENKTL (n=5) and cutaneous PTCL-NOS (n=1). We showed a wide spectrum of intestinal T-cell lymphomas in Taiwan, with MEITL as the most common PITL, a high rate of perforation, and a wider morphological and immunophenotypic spectrum.

Can a Bayesian belief network for survival prediction in patients with extremity metastases (PATHFx) be externally validated in an Asian cohort of 356 surgically treated patients?

Background and purposePredicted survival may influence the treatment decision for patients with skeletal extremity metastasis, and PATHFx was designed to predict the likelihood of a patient dying in the next 24 months. However, the performance of prediction models could have ethnogeographical variations. We asked if PATHFx generalized well to our Taiwanese cohort consisting of 356 surgically treated patients with extremity metastasis.Patients and methodsWe included 356 patients who underwent surgery for skeletal extremity metastasis in a tertiary center in Taiwan between 2014 and 2019 to validate PATHFx’s survival predictions at 6 different time points. Model performance was assessed by concordance index (c-index), calibration analysis, decision curve analysis (DCA), Brier score, and model consistency (MC).ResultsThe c-indexes for the 1-, 3-, 6-, 12-, 18-, and 24-month survival estimations were 0.71, 0.66, 0.65, 0.69, 0.68, and 0.67, respectively. The calibration analysis demonstrated positive calibration intercepts for survival predictions at all 6 timepoints, indicating PATHFx tended to underestimate the actual survival. The Brier scores for the 6 models were all less than their respective null model’s. DCA demonstrated that only the 6-, 12-, 18-, and 24-month predictions appeared useful for clinical decision-making across a wide range of threshold probabilities. The MC was < 0.9 when the 6- and 12-month models were compared with the 12-month and 18-month models, respectively.InterpretationIn this Asian cohort, PATHFx’s performance was not as encouraging as those of prior validation studies. Clinicians should be cognizant of the potential decline in validity of any tools designed using data outside their particular patient population. Developers of survival prediction tools such as PATHFx might refine their algorithms using data from diverse, contemporary patients that is more reflective of the world’s population.

Primary cutaneous gamma/delta T-cell lymphoma in Taiwan: A series of six cases with frequent solitary presentation and relatively indolent behavior.

Primary cutaneous gamma/delta T-cell lymphoma (PCDG-TCL) is aggressive, frequently presenting as multiple plaques, tumors, and/or subcutaneous nodules. In this study, we conducted a retrospective study in a tertiary center in Taiwan to characterize this rare tumor. We identified six patients. Five presented with a solitary lesion, including two with clinical impression of epidermal inclusion cyst or lipoma. Two of four evaluable cases exhibited epidermotropism, with one mimicking Pautrier microabscess. The neoplastic cells were pleomorphic and mostly medium- to large-sized. In all cases, the neoplastic cells expressed T-cell receptor (TCR)-γ and/or TCR-δ, with four co-expressing βF1. Two of these βF1+ cases co-expressed TCR-γ but not TCR-δ (two different clones). All were negative for Epstein-Barr virus (EBV), low stage, and treated with radiotherapy alone or combined chemotherapy and radiotherapy. In two patients, lymphoma relapsed in 3 and 7 months, respectively, and one patient died of the disease in 7 months. Four other patients were free of disease for 6 to 126months. PCGD-TCL cases in Taiwan are more commonly solitary, frequently with indolent courses. The two currently available TCR-δ clones alone might be insufficient to detect all tumors.

Genetics and clinical correlation of Dravet syndrome and its mimics – experience of a tertiary center in Taiwan

Dravet syndrome is a severe developmental and epileptic encephalopathy characterized by the onset of prolonged febrile and afebrile seizures in infancy and SCN1A gene mutations. In some cases, non-SCN1A gene mutations can present with a phenotype very similar to that of Dravet syndrome. The aim of this study was to compare phenotypes of patients with SCN1A and non-SCN1A gene mutation-related Dravet syndrome. Thirty-six patients with Dravet syndrome-like phenotypes were followed from July 2017 to December 2019. We retrospectively analyzed their clinical profiles and genetic surveys. Of the 36 enrolled patients, 15 (41.7%) had SCN1A mutations, one (2.8%) had an SCN8A mutation, one (2.8%) had an STX1B mutation, and five females (13.9%) had PCDH 19 mutations. The median age at first seizure onset was 7 months in those with SCN1A mutations, 1.3 years in those with PCDH19 mutations, and 10 months for the remaining patients. The majority of the patients with SCN1A mutations had status epilepticus (80% vs. 20%) and fever-sensitive seizures (76% vs. 31%) compared to those with PCDH19 mutations. The patients with SCN1A-related seizures had a higher rate of focal seizures as first seizure type than those without SCN1A mutations. Three of five (60%) patients with PCDH19 mutations had brain magnetic resonance imaging abnormalities. The three most commonly used antiseizure medications were sodium valproate, levetiracetam, and clobazam. Seven of the 15 patients with SCN1A mutations used stiripentol. The median time from seizure onset to genetic diagnosis was 6.6 years (range 4 months-22.3 years). The patients with SCN1A mutations in this study had high rates of fever-sensitive seizures, status epilepticus, seizure onset with focal seizure type, and relatively young age at seizure onset. The patients with PCDH19 mutations had a relatively high rate of abnormal brain magnetic resonance imaging findings.

The characteristics of pediatric ulcerative colitis with primary sclerosing cholangitis: A single-center study in Taiwan

Primary sclerosing cholangitis (PSC) is often associated with ulcerative colitis (UC). We investigated the clinical characteristics of pediatric UC patients with and without PSC. We retrospectively recruited children with UC, with and without PSC, from 2006 to 2017 in a tertiary center in Taiwan. The clinical data of the patients, including clinical and endoscopic UC severity scores, medications, and laboratory parameters, were analyzed. We recruited five children with PSC-UC (PSC-UC group), and 26 with UC alone (non-PSC UC group) in this retrospective analysis. Among the patients with PSC-UC, four (80%) were compatible with definite or probable autoimmune sclerosing cholangitis (ASC). The UC Endoscopic Index of Severity (5.00 vs. 9.00, P=0.003) and Mayo score (4.00 vs. 8.00, P=0.014) were significantly lower in the PSC-UC group than the non-PSC UC group. The prevalence of immunomodulator use was significantly higher in the PSC-UC than the non-PSC UC group (100% vs. 42.3%, P=0.043), but there was no difference regarding steroids, mesalamine, or biologics. At the end of the study, significantly fewer patients were steroid-free in the PSC-UC than the non-PSC UC group (20.0% vs. 84.6%, P=0.010). Pediatric patients with PSC-UC had less severe colitis than those with UC alone in terms of the clinical activity index and endoscopic severity index, but they were more likely to need an immunomodulator and less likely to be steroid-free in the long term, for the control of liver disease.

Uncontrolled before-after study adding carbetocin in addition to oxytocin decreases blood loss for cesarean section in twin pregnancies

To evaluate the effectiveness of adding carbetocin to regular uterotonic agents for prevention of postpartum hemorrhage (PPH) after cesarean section for twin pregnancies. This is a retrospective uncontrolled before-after study done in a tertiary center in Taiwan, 2010-2017. Women with twin pregnancies that underwent cesarean section were enrolled. The control group (n=114) received oxytocin infusion and direct uterine injection. In addition to these, the study group (n=127) received 100ug of intravenous carbetocin. Primary endpoint was the change in hemoglobin. Secondary endpoints included risk of PPH and undiagnosed PPH (Hb dropped more than 2g/dL), blood loss, the need for additional uterotonic maneuvers, and blood transfusion. Hemodynamic changes were also investigated. After adjusting for confounding factors, the change in Hb (0.35g/dL, 95% CI: -0.03∼0.74) and incidence of PPH (OR 0.30, 95% CI: 0.03∼3.28) were comparable in both groups. However, women with undiagnosed PPH decreased (OR 0.43, 95% CI:0.22∼0.85). Total blood loss in 24h after delivery also decreased (-40.33mL, 95%CI: -80.32∼ -0.34). The use of extra uterotonic medications and the need for blood transfusion did not differ. The systolic blood pressure 4h after childbirth was higher in the carbetocin group (6.71, 95% CI: 2.27∼11.15). The use of carbetocin in addition to regular uterotonic agents decreased total blood loss and undiagnosed PPH. Also, systolic blood pressure 4h after childbirth is higher in the carbetocin group. There was no significant difference in hemoglobin change and risk of PPH.

Impact of the Coronavirus Disease 2019 Pandemic on an Emergency Department Service: Experience at the Largest Tertiary Center in Taiwan

PurposeSevere Acute Respiratory Syndrome coronavirus 2 (SARS-CoV-2) is an emerging contagious pathogen that has caused community and nosocomial infections in many countries. This study aimed to evaluate the impact of Coronavirus disease 2019 (COVID-19) on emergency services of the largest medical center in Taiwan by comparing emergency department (ED) usage, turnover, and admission rates before the COVID-19 outbreak with those during the outbreak.Materials and MethodsA retrospective cohort study was conducted in the ED of the largest tertiary medical center in Taiwan. Trends of adult, non-trauma patients who visited the ED during February–April 2019 were compared with those during February–April 2020. The number of visits, their dispositions, crowding parameters, and turnover rates were analyzed. The primary outcome was the change in ED attendance between the two periods. The secondary outcomes were changes in hospital admission rates, crowding parameters, and turnover rates.ResultsDuring the outbreak, there were decreased non-trauma ED visits by 33.45% (p < 0.001) and proportion of Taiwan Triage and Acuity Scale (TTAS) 3 patients (p=0.02), with increased admission rates by 4.7% (p < 0.001). Crowding parameters and turnover rate showed significant improvements.ConclusionComparison of periods before and during the COVID-19 outbreak showed an obvious decline in adult, non-trauma ED visits. The reduction in TTAS 3 patient visits and the increased hospital admission rates provide references for future public-health policy-making to optimise emergency medical resource allocations globally.

Orbital exenteration: A 20-year experience from a tertiary center in Taiwan

To describe the prognostic factors and survival outcomes in patients who underwent orbital exenteration surgery at a tertiary center over a 20-year period. This institutional retrospective study reviewed all patients who underwent orbital exenteration between January 1999 and January 2019at Department of Ophthalmology, National Taiwan University Hospital. Patient demographics, tumor site, histopathology, status of surgical margins, additional resection, local recurrence, metastases, survival, and treatment data were recorded. Log-rank tests were used to verify the difference in survival curves among various potential prognostic factors. Thirty patients (27 with malignancy, 1 with hybrid neurofibroma/schwannoma, and 2 with mucormycosis) were included. Malignant melanoma (n=11) and sebaceous gland carcinoma (n=8) were the most common indications for exenteration. Survival rates were 83% at 1 year, 42% at 3 years, and 33% at 5 years. Among patients with malignancies, 71% patients had clear margins after exenteration. All the incidences of local recurrence developed in the first 2 years postoperatively. Postoperative survival was significantly related to lymphovascular invasion (p=0.018), but was independent from surgical margins, presence of metastasis, local recurrence, or perineural invasion. We found worse prognosis with positive lymphovascular invasion. Although not significant, malignant melanoma showed poorer survival times compared to sebaceous gland carcinoma. Close follow-up, especially in the first 2 years after orbital exenteration, is crucial to identify disease recurrence.

The cytopathological spectrum of lymphomas in effusions in a tertiary center in Taiwan.

We retrospectively reviewed effusion lymphomas from our archives in a tertiary center from July 2011 to June 2019. We identified 59 specimens from 43 patients, including 7 cases with primary effusion lymphoma (PEL) and 36, secondary effusion involvement. Half of the secondary cases presented concurrently with effusion lymphoma, while the remaining half-experienced effusion lymphoma during disease progression. All patients with PELs were males with a median age of 77 and presented with massive pleural effusion. None was HIV-related. Two (29%) PEL cases were positive for human herpes virus 8 (HHV8). The only case with plasmablastic phenotype in the PEL group was positive for both HHV8 and EBV. Four patients died shortly after diagnosis; while the remaining three were alive at the last follow-up (two at 13 months and one at 99 months). Of the secondary cases, diffuse large B-cell lymphoma/high grade B-cell lymphoma was the most common (n = 16, 44%), followed by mantle cell lymphoma (n = 5, 14%). Only 8 cases (22%) were T-cell neoplasms. Prognosis for patients with secondary effusion involvement was dismal, with 1- and 2-year overall survival rates at 17% and 8%, respectively. We found a wide cytopathological spectrum of effusion lymphoma in Taiwan. Most of our PEL cases were distinct from that defined in the World Health Organization scheme by a B-cell phenotype, HHV8-negativity, and absence of immunodeficiency. As compared to PEL cases, the prognosis of those with secondary involvement was extremely poor.

Aortoenteric fistula: Case series from a tertiary center in Taiwan

AbstractAortoenteric fistula, a rare and catastrophic medical condition usually relevant to previous aortic surgery and other rare causes, is a disease that needs a multidisciplinary team including gastroenterologist, radiologist, and cardiovascular surgeon to deal with. Computed tomography with/without angiography is the choice of image study for diagnosis. Esophagogastroduodenoscopy also plays an important role in diagnosis. Exploratory laparotomy is usually mandatory because of difficulties in diagnosis and emergent condition. Aortic repair is the definite treatment and it could be done via open or endovascular surgery. From 2005 to 2017, total six patients who had the diagnosis of aortoenteric fistula (AEF) were collected from a tertiary center in Taiwan. Demographic data, diagnostic approach, treatment, and prognosis were all recorded. Among the six patients, the clinical presentations were gastrointestinal bleeding (GIB) (100%), abdominal pain (50%), and unstable hemodynamics (50%). Computed tomography angiography showed clues for AEF in four out of five patients. Four patients had definite diagnosis after open surgery. The survival time from initial presentation ranges from few hours to 29 months (median: 4.5 months). The most common manifestation of AEF is GIB. Due to its high mortality rate and difficult diagnosis, we should remind us of this rare disease for early diagnose and timely treatment.

Neonatal hospice care utilization in a tertiary hospital in Taiwan before and after the legalization of life-sustaining treatment withdrawal.

The advancements in neonatal critical care have not only improved the outcomes of extreme prematurity but also prolonged the process of death in terminally ill neonates. This study analyzed the characteristics of neonates who died at a single tertiary center in Taiwan. The utilization of neonatal hospice care before and after the legalization of life-sustaining treatment (LST) withdrawal in Taiwan in 2013 was also compared. This study enrolled the neonatal mortality cases in the Taipei Veterans General Hospital during January 2008 to December 2017 through chart review. Data on birth history, primary diagnosis, complications, and death circumstances were recorded and analyzed. In total, 105 neonatal deaths were analyzed. The circumstances of death were as follows: 22 (21%) cases of full LST and cardiopulmonary resuscitation (CPR) performed until death; 63 (60%) cases of LST initiated but no more CPR after do-not-resuscitate (DNR) consents signed; 8 (7.6%) cases of LST withdrawn; 4 (3.8%) cases of DNR signed without LST initiation; 3 (2.9%) cases of CPR not performed, although no DNR signed; and 5 (4.8%) cases of discharge against medical advice under critical condition. The incidence of written DNR consents (57.9% in 2008-2009 vs 93.8% in 2016-2017; p = 0.02) showed an increasing trend. Regarding the incidence of comorbidities, renal failure rate was higher in the DNR group than in the non-DNR group (p = 0.002). There was an increasing trend for written DNR consent and the utilization of neonatal hospice care. Renal failure, as a comorbidity, was significantly associated with the written DNR consent in the neonates. Further studies to evaluate the factors associated with neonatal hospice care utilization are suggested.