Mobile COVID-19 testing program in Phoenix: A retrospective observational cohort study of results, trends, and positivity rates.

Over 3 years since the onset of the coronavirus (COVID-19), the COVID-19 pandemic remains a global health challenge. At the same time, review of the response to the current pandemic is required for planning for future pandemics and global health crises. Approximately 2.5 million cases of COVID-19 have been reported in Arizona, a state with a 7.2 million population. Analyzing trends in COVID-19 case and positivity rates is crucial in planning to ensure public health safety for both this and future pandemics. This current observational study analyzes the trends in COVID-19 testing and positivity rates in the Phoenix metropolitan area, from data collected from a mobile testing program between December 2020 and April 2022. A total of 72,827 COVID-19 tests were performed, with a total of 8666 positive cases, yielding an overall positivity rate of 11.9%. Case counts and positivity rates increased during the fall and winter months, peaking in January (January 2021: 13.96% and January 2022: 24.84%). These cyclical trends cyclical can help with planning and mitigation. Continued public health awareness, including vaccinations and testing, is required in controlling COVID-19 transmission.

Trends in COVID-19 Testing and Positivity Rates from a Mobile Testing Program in the Phoenix Metropolitan Area.

The coronavirus (COVID-19) pandemic continues to be a global concern, with over 150 million cases worldwide. Arizona, which was recently a hotspot for COVID-19, has over 860 thousand cases. Reviewing the COVID-19 trends over time is crucial in understanding the pandemic and evaluating the impact of mitigation techniques. This current study analyzes the trends in COVID-19 testing and positivity rates from a mobile testing program in the Phoenix metropolitan area between December 2020 and April 2021. Of the 32,234 tests performed there was a total of 3654 COVID positive cases, yielding an overall positivity rate of 11.3%. COVID-19 positivity rates were significantly higher in December (12.9%) and January (12.7%), compared to February (7.5%), March (4.9%), and April (6.7%), p < 0.05. The peak of COVID-19 cases is likely attributable to the holiday season and family gatherings, followed by a steady decline, likely due to fewer gatherings and an increase in individuals receiving the COVID-19 vaccines. Continued public health measures, including vaccinations, are critical in reducing COVID-19 transmission.

COVID-19 Trends in the Phoenix Metropolitan Area from a Mobile Testing Program: Last Quarter of 2020.

The coronavirus (COVID-19) pandemic continues to be a public health concern, and Arizona has once again been a COVID-19 hotspot, peaking at 118.3 cases per 100,000. Understanding the trends in COVID-19 positivity rates over time is crucial in planning and mitigation of the virus. This current study analyzes the trends in COVID-19 testing, and COVID-19 antigen and antibody positivity rates over a 3-month time-span from October to December 2020. A retrospective study was conducted collecting data from a mobile testing program during October to December 2020 in the Phoenix metropolitan area. COVID-19 antigen and antibody positivity rates were analyzed. A total of 6710 patients were included in the study. As the months progressed, more patients were tested (October: 1635; November: 2037; December: 3038). The COVID-19 antigen positivity rate was significantly higher in December, compared to October and November (13.43% vs. 11.43 and 10.86%, p = 0.021). COVID-19 IgG rates were also significantly higher in November and December, compared to October (16.65 and 16.50% vs. 8.74%, p < 0.001). There was a progressive increase in COVID-19 positivity cases towards the end of 2020, likely attributed to factors including social gatherings during the holidays and the relaxing of the closure restrictions. Continued public health measures is crucial in preventing the spread of COVID-19.

COVID-19 Exposure Among First Responders in Arizona.

OBJECTIVE: The number of COVID-19 cases in Arizona is rapidly increasing, leading the country in the rate of new daily cases. Exposure among first responders remains unknown. METHODS: Rates of SARS-CoV-2 IgG among first responders in Arizona were determined, and attitudes/views about the impact of COVID-19 on their work life was analyzed. RESULTS: Of 3326 first responders, 50 (1.50%) tested positive for SARS-CoV-2 IgG. Most first responders thought antibody testing would help ease their anxieties (62.5%) and be beneficial to their work-life (60.6%). CONCLUSION: The rate of COVID-19 exposure among first responders in Arizona is low-1.50%. COVID-19 is a concern among many of the first responders, and antibody testing was beneficial in easing their anxieties about going to work and performing work-related duties.

Prehabilitation Programs Improve Exercise Capacity Before and After Surgery in Gastrointestinal Cancer Surgery Patients: A Meta-Analysis.

INTRODUCTION: Prehabilitation programs or interventions are employed prior to surgery with the aim to optimize the patient before surgery and to improve their physiologic ability to recover from surgery. Components of these programs often include exercise, nutritional supplementation, and psychological interventions. This meta-analysis examines the impact of prehabilitation programs on both surgical and patient outcomes among gastrointestinal (GI) cancer patients undergoing surgery. METHODS: A comprehensive literature search was conducted to identify all published randomized control trials (RCT) evaluating the use of prehabilitation programs (with one or more interventions) in GI cancer surgery patients. Outcomes assessed were 6-min walk distance (6MWD), postoperative complications, major complications (as defined as Clavien Dindo grade ≥ 3), surgical site infections (SSI), pneumonia, length of stay (LOS), 30-day readmission, and mortality. RESULTS: Eleven RCTs including 929 patients (475 prehabilitation program and 454 controls) were analyzed. Prehabilitation programs were associated with statistically significant improvements in 6MWD between baseline and immediately prior to surgery (MD = 32.542 m; 95% CI, 10.774-54.310; p = 0.003) and 4-8 weeks after surgery (MD = 48.220 m; 95% CI, 1.532-94.908; p = 0.043) compared with patients who did not receive prehabilitation programs. Similar rates of postoperative complications, major complications, SSI, pneumonia, 30-day readmission, and mortality, as well as LOS, were observed (p > 0.05). CONCLUSIONS: Prehabilitation programs improve exercise capacity both before and after surgery, with no significant difference in LOS, or rates of postoperative complications, 30-day readmission, and mortality. Future studies assessing the different components of prehabilitation programs to identify the most beneficial interventions are required.

Preoperative Scale to Determine All-Cause Readmission After Coronary Artery Bypass Operations.

BACKGROUND: Coronary artery bypass graft (CABG) operations are associated with all-cause readmission rates of approximately 15%. In attempts to reduce readmission rates, the Hospital Readmission Reduction Program expanded to include CABG operations in 2015. The aim of this study was therefore to develop a predictive readmission scale that would identify patients at higher risk of readmission after CABG using commonly available administrative data. METHODS: Data of 126,519 patients from California and New York (derivation cohort) and 94,318 patients from Florida and Washington (validation cohort) were abstracted from the State Inpatient Database (2006 to 2011). The readmission after CABG scale was developed to predict 30-day readmission risk and was validated against a separate cohort. RESULTS: Thirty-day CABG readmission rates were 23% in the derivation cohort and 21% in the validation cohort. Predictive factors included older age, female gender (odds ratio [OR], 1.34), African American ethnicity (OR, 1.13), Medicare or Medicaid insurance, and comorbidities, including renal failure (OR, 1.56) and congestive heart failure (OR, 2.82). These were independently predictive of increased readmission rates (p < 0.01). The readmission scale was then created with these preoperative factors. When applied to the validation cohort, it explained 98% of the readmission variability. CONCLUSIONS: The readmission after CABG scale reliably predicts a patient's 30-day CABG readmission risk. By identifying patients at high-risk for readmission before their procedure, risk reduction strategies can be implemented to reduce readmissions and healthcare expenditures.

Medical student attitudes and educational interventions to prevent neurophobia: a longitudinal study.

BACKGROUND: With an aging American population, the burden of neurologic disease is intensifying and the decline in neurology residents and practicing neurologists is leaving these patients helpless and unable to find care. 'Neurophobia', a chronic illness that begins early in medical school, has been identified as a cause for the low number of neurology residents. METHODS: A longitudinal study surveyed medical students at the beginning of their first year (M1) and then again at the beginning of their second year (M2). Three neuroscience educational interventions were studied: team based learning (TBL), case based teaching (CBT), and problem based learning (PBL). Participants provided self-reported neurophobia levels, attitudes about neuroscience, and the effectiveness of educational interventions. RESULTS: A total of 446 students during M1 and 206 students during M2 participated in the survey. A significant change in self-reported neurophobia (p = 0.035) was observed from 19% in M1 to 26% in M2. Neuroscience knowledge and confidence managing a neurologic condition also significantly increased (p < 0.001 and p = 0.038 respectively). Perceived interest, difficulty, and desire to pursue a career in neuroscience did not a change significantly. Majority of students perceived CBT (76%), TBL (56%), and PBL (66%) beneficial. Only CBT demonstrated a statistical difference (p = 0.026) when stratified by self-reported change in neurophobia. CONCLUSION: An increase in neurophobia after completing a neuroscience was observed but the prevalence rate of 26% was lower than previous studies. Knowledge about neuroscience increased significantly and educational interventions were considered beneficial by students. Thus, interventions that increase knowledge and decrease neurophobia can lead to an increase in students pursuing neurology residencies.

Bundles Prevent Surgical Site Infections After Colorectal Surgery: Meta-analysis and Systematic Review.

INTRODUCTION: Colorectal surgeries (CRS) have one of the highest rates of surgical site infections (SSIs) with rates 15 to >30%. Prevention "bundles" or sets of evidence-based interventions are structured ways to improve patient outcomes. The aim sof this study is to evaluate CRS SSI prevention bundles, bundle components, and implementation and compliance strategies. METHODS: A meta-analysis of studies with pre- and post-implementation data was conducted to assess the impact of bundles on SSI rates (superficial, deep, and organ/space). Subgroup analysis of bundle components identified optimal bundle designs. RESULTS: Thirty-five studies (51,413 patients) were identified and 23 (17,557 patients) were included in the meta-analysis. A SSI risk reduction of 40% (p < 0.001) was noted with 44% for superficial SSI (p < 0.001) and 34% for organ/space (p = 0.048). Bundles with sterile closure trays (58.6 vs 33.1%), MBP with oral antibiotics (55.4 vs 31.8%), and pre-closure glove changes (56.9 vs 28.5%) had significantly greater SSI risk reduction. CONCLUSION: Bundles can effectively reduce the risk of SSIs after CRS, by fostering a cohesive environment, standardization, and reduction in operative variance. If implemented successfully and complied with, bundles can become vital to improving patients' surgical quality of care.

Gallbladder Carcinoma in the United States: A Population Based Clinical Outcomes Study Involving 22,343 Patients from the Surveillance, Epidemiology, and End Result Database (1973-2013).

INTRODUCTION: Gallbladder carcinoma (GBC) is the most common malignancy of the biliary tract and the third most common gastrointestinal tract malignancy. This study examines a large cohort of GBC patients in the United States in an effort to define demographics, clinical, and pathologic features impacting clinical outcomes. METHODS: Demographic and clinical data on 22,343 GBC patients was abstracted from the SEER database (1973-2013). RESULTS: GBC was presented most often among Caucasian (63.9%) females (70.7%) as poorly or moderately differentiated (42.5% and 38.2%) tumors, with lymph node involvement (88.2%). Surgery alone was the most common treatment modality for GBC patients (55.0%). Combination surgery and radiation (10.6%) achieved significantly longer survival rates compared to surgery alone (4.0 ± 0.2 versus 3.7 ± 0.1 years, p = 0.004). Overall mortality was 87.0% and cancer-specific mortality was 75.4%. CONCLUSIONS: GBC is an uncommon malignancy that presents most often among females in their 8th decade of life, with over a third of cases presenting with distant metastasis. The incidence of GBC has doubled in the last decade concurrent with increases in cholecystectomy rates attributable in part to improved histopathological detection, as well as laparoscopic advances and enhanced endoscopic techniques. Surgical resection confers significant survival benefit in GBC patients.

Less Invasive Surfactant Administration Reduces the Need for Mechanical Ventilation in Preterm Infants: A Meta-Analysis.

Neonatal respiratory distress syndrome due to surfactant deficiency is associated with high morbidity and mortality in preterm infants, and the use of less invasive surfactant administration (LISA) has been increasingly studied. This meta-analysis found that LISA via thin catheter significantly reduced the need for mechanical ventilation within the first 72 hours (relative risk [RR] = 0.677; P = .021), duration of mechanical ventilation (difference in means [MD] = -39.302 hours; P < .001), duration of supplemental oxygen (MD = -68.874 hours; P < .001), and duration of nasal continuous positive airway pressure (nCPAP; MD = -28.423 hours; P = .010). A trend toward a reduction in the incidence of bronchopulmonary dysplasia was observed (RR = 0.656; P = .141). No significant difference in overall mortality, incidence of pneumothorax, or successful first attempts was observed. LISA via thin catheter significantly reduces the need for mechanical ventilation within the first 72 hours as well as the duration of mechanical ventilation, supplemental oxygen, and nCPAP. LISA via thin catheter appears promising in improving preterm infant outcomes.

Malignant Melanoma in African-Americans: A Population-Based Clinical Outcomes Study Involving 1106 African-American Patients from the Surveillance, Epidemiology, and End Result (SEER) Database (1988-2011).

Malignant melanoma accounts for 75% of all skin cancer deaths and is potentially curable if identified early. Although melanoma is rare in African-Americans (AA), it is associated with a worse prognosis than in Caucasians. This study examines the demographic, pathologic, and clinical factors impacting AA melanoma outcomes.Data for 1106 AA and 212,721 Caucasian cutaneous melanoma patients were abstracted from the Surveillance, Epidemiology, and End Result (SEER) database (1988-2011). Data were grouped on the basis of histological subtypes: "Superficial Spreading" (SS), "Nodular" (NM), "Lentigo Maligna" (LM), "Acral Lentiginous" (AL), and "Not otherwise specified" (NOS).Cutaneous malignant melanoma occurs most commonly in the sixth and seventh decade of life. Caucasian patients presented most commonly with trunk melanomas (34.5%), while lower extremity melanomas were more common in AAs (56.1%), P < 0.001. AAs presented with deeper tumors, more advanced stage of disease, and higher rates of ulceration and lymph node positivity than Caucasians. Cancer-specific mortality was significantly higher, while 5-year cancer-specific survival was significantly lower among AAs for NM and AL subtypes. Multivariate analysis identified male gender, regional and distant stage, NM and AL subtypes as independently associated with increased mortality among both ethnic groups.AAs present most often with AL melanoma on the lower extremities, and with deeper and more advanced stage lesions. AAs have higher cancer-specific mortality for NM and LM than Caucasians. Melanoma education for AA patients and health care providers is needed to increase disease awareness, facilitate early detection, and promote access to effective treatment.

Enhanced Recovery After Surgery Programs Improve Patient Outcomes and Recovery: A Meta-analysis.

INTRODUCTION: Enhanced recovery after surgery (ERAS) programs have been developed to improve patient outcomes, accelerate recovery after surgery, and reduce healthcare costs. ERAS programs are a multimodal approach, with interventions during all stages of care. This meta-analysis examines the impact of ERAS programs on patient outcomes and recovery. METHODS: A comprehensive search of all published randomized control trials (RCTs) assessing the use of ERAS programs in surgical patients was conducted. Outcomes analyzed were length of stay (LOS), overall mortality, 30-day readmission rates, total costs, total complications, time to first flatus, and time to first bowel movement. RESULTS: Forty-two RCTs involving 5241 patients were analyzed. ERAS programs significantly reduced LOS, total complications, and total costs across all types of surgeries (p < 0.001). Return of gastrointestinal (GI) function was also significantly improved, as measured by earlier time to first flatus and time to first bowel movement, p < 0.001. There was no overall difference in mortality or 30-day readmission rates; however, 30-day readmission rates after upper GI surgeries nearly doubled with the use of ERAS programs (RR = 1.922; p = 0.019). CONCLUSIONS: ERAS programs are associated with a significant reduction in LOS, total complications, total costs, as well as earlier return of GI function. Overall mortality and readmission rates remained similar, but there was a significant increase in 30-day readmission rates after upper GI surgeries. ERAS programs are effective and a valuable part in improving patient outcomes and accelerating recovery after surgery.

Probiotics improve the efficacy of standard triple therapy in the eradication of Helicobacter pylori: a meta-analysis.

INTRODUCTION: Helicobacter pylori colonization is present in half of the world's population and can lead to numerous gastrointestinal diseases if left untreated, including peptic ulcer disease and gastric cancer. Although concurrent triple therapy remains the recommended treatment regimen for H. pylori eradication, its success rate and efficacy have been declining. Recent studies have shown that the addition of probiotics can significantly increase eradication rates by up to 50%. This meta-analysis examines the impact of probiotic supplementation on the efficacy of standard triple therapy in eradicating H. pylori. METHODS: A comprehensive literature search was conducted using PubMed, Cochrane Central Registry of Controlled Trials, and Google Scholar (time of inception to 2016) to identify all published randomized control trials (RCTs) assessing the use of probiotics in addition to triple therapy for the treatment of H. pylori. Searches were conducted using the keywords "probiotics", "triple therapy", and "Helicobacter pylori". RCTs comparing the use of probiotics and standard triple therapy with standard triple therapy alone for any duration in patients of any age diagnosed with H. pylori infection were included. H. pylori eradication rates (detected using urea breath test or stool antigen) were analyzed as-per-protocol (APP) and intention-to-treat (ITT). RESULTS: A total of 30 RCTs involving 4,302 patients APP and 4,515 patients ITT were analyzed. The addition of probiotics significantly increased eradication rates by 12.2% (relative risk [RR] =1.122; 95% confidence interval [CI], 1.091-1.153; P<0.001) APP and 14.1% (RR =1.141; 95% CI, 1.106-1.175; P<0.001) ITT. Probiotics were beneficial among children and adults, as well as Asians and non-Asians. No significant difference was observed in efficacy between the various types of probiotics. The risk of diarrhea, nausea, vomiting, and epigastric pain was also reduced. CONCLUSION: The addition of probiotics is associated with improved H. pylori eradication rates in both children and adults, as well as Asians and non-Asians. Lactobacillus, Bifidobacterium, Saccharomyces, and mixtures of probiotics appear beneficial in H. pylori eradication. Furthermore, the reduction in antibiotic-associated side effects such as nausea, vomiting, diarrhea, and epigastric pain improves medication tolerance and patient compliance. Given the consequences associated with chronic H. pylori infection, the addition of probiotics to the concurrent triple therapy regimen should be considered in all patients with H. pylori infection. However, further studies are required to identify the optimal probiotic species and dose.

Ultrasound-guided central venous catheter placement increases success rates in pediatric patients: a meta-analysis.

BACKGROUND: Real-time ultrasound (US) guidance for central venous catheter (CVC) insertion has been shown to increase cannulation success rates and reduce complications in adults. Literature regarding US-guided CVC placement in children remains limited and conflicting. This meta-analysis examines the efficacy and safety of US-guided CVC placement among pediatric patients. METHODS: A comprehensive literature search of all published randomized control trials (RCTs) comparing the use of real-time US-guided CVC insertion with anatomic landmark (LM)-guided CVC insertion in pediatric patients <18 y of age was conducted. Outcomes analyzed were cannulation success rate, number of attempts required, incidence of accidental arterial puncture, and time to cannulation. RESULTS: Eight RCTs involving 760 patients were analyzed. US-guided CVC insertion significantly increased success rates by 31.8% and decreased the mean number of attempts required. A trend toward a decrease in the risk of accidental arterial puncture with the use of US-guided CVC insertion was also observed. US-guided CVC insertion was not associated with a significant difference in time required for CVC placement. CONCLUSION: US-guided CVC placement is associated with significantly higher success rates and decreased mean number of attempts required for cannulation. US-guided CVC insertion improves success rates, and should be utilized in pediatric patients.

Probiotics and Synbiotics Decrease Postoperative Sepsis in Elective Gastrointestinal Surgical Patients: a Meta-Analysis.

BACKGROUND: The health benefits of probiotics and synbiotics are well established in healthy adults, but their role in preventing postoperative sepsis remains controversial. This meta-analysis assesses the impact of probiotics and synbiotics on the incidence of postoperative sepsis in gastrointestinal (GI) surgical patients. METHODS: A comprehensive literature search of all published randomized control trials (RCTs) was conducted using PubMed, Cochrane Central Registry of Controlled Trials, and Google Scholar (1966-2015). Inclusion criteria included RCTs comparing the use of any strain or dose of a specified probiotic/synbiotic with placebo or a "no treatment" control group. The incidence of postoperative sepsis (within 1 month of surgery) and postoperative mortality were analyzed. RESULTS: Fifteen RCTs involving 1201 patients (192 receiving probiotics, 413 receiving synbiotics, and 596 receiving placebo) were analyzed. Overall, probiotic and synbiotic uses significantly reduced the risk of developing postoperative sepsis by 38 % (relative risk (RR) = 0.62, 95 % confidence interval (CI) 0.52-0.74, p < 0.001). CONCLUSIONS: The use of probiotic/synbiotic supplementation is associated with a significant reduction in the risk of developing postoperative sepsis in patients undergoing elective GI surgery. Probiotic/synbiotic supplementation is a valuable adjunct in the care of patients undergoing GI surgery. Additional studies are required to determine the optimal dose and strain of probiotic/synbiotic.

Pediatric Chordomas: A Population-Based Clinical Outcome Study Involving 86 Patients from the Surveillance, Epidemiology, and End Result (SEER) Database (1973-2011).

BACKGROUND/AIMS: Primary chordomas, rare cancers arising from the notochord remnants, are extremely rare in the pediatric population. This study examined a large cohort of primary chordoma patients to determine factors impacting prognosis and survival. METHODS: Demographic and clinical data on 1,358 primary chordoma patients (86 pediatric patients ≤19 years of age and 1,272 adult patients ≥20 years of age) were abstracted from the Surveillance, Epidemiology, and End Result (SEER) database (1973-2011). RESULTS: Pediatric primary chordomas present most often as small tumors <4 cm in the cranium of male Caucasians. Despite the majority of primary chordomas presenting with locoregional involvement (90.4%), pediatric patients had more distant disease (14.8 vs. 9.2%, p < 0.05). Survival among pediatric patients having surgery only was significantly longer than for adults (22.5 vs. 14.3 years, p < 0.001). Overall survival was longer (17.2 vs. 12.6 years) and overall mortality was lower in pediatric patients (38.4 vs. 49.8%), but cancer-specific mortality was higher (37.2 vs. 28.6%, p < 0.005). CONCLUSIONS: Pediatric primary chordomas present most often as small tumors <4 cm in the cranium of male Caucasians. Despite having a higher rate of metastasis, they have prolonged survival compared to adults. Surgical resection significantly improves survival in pediatric primary chordoma patients, and should be considered as first-line therapy in all eligible children.

Sequential (as Opposed to Simultaneous) Antibiotic Therapy Improves Helicobacter pylori Eradication in the Pediatric Population: A Meta-Analysis.

Helicobacter pylori is a common infection associated with many gastrointestinal diseases. Triple or quadruple therapy is the current recommendation for H pylori eradication in children but is associated with success rates as low as 50%. Recent studies have demonstrated that a 10-day sequential therapy regimen, rather than simultaneous antibiotic administration, achieved eradication rates of nearly 95%. This meta-analysis found that sequential therapy increased eradication rates by 14.2% (relative risk [RR] = 1.142; 95% confidence interval [CI] = 1.082-1.207; P < .001). Ten-day sequential therapy significantly improved H pylori eradication rates compared to the 7-day standard therapy (RR = 1.182; 95% CI = 1.102-1.269; p < .001) and 10-day standard therapy (RR = 1.179; 95% CI = 1.074-1.295; P = .001), but had lower eradication rates compared to 14-day standard therapy (RR = 0.926; 95% CI = 0.811-1.059; P = .261). The use of sequential therapy is associated with increased H pylori eradication rates in children compared to standard therapy of equal or shorter duration.

Hepatocellular Carcinoma in the Pediatric Population: A Population Based Clinical Outcomes Study Involving 257 Patients from the Surveillance, Epidemiology, and End Result (SEER) Database (1973-2011).

Introduction. Hepatocellular carcinoma (HCC) is a rare pediatric cancer accounting for 0.5% of all pediatric malignancies. This study examines a large cohort of HCC patients in an effort to define the factors impacting clinical outcomes in pediatric HCC patients compared to adults. Methods. Demographic and clinical data on 63,771 HCC patients (257 pediatric patients ≤ 19 and 63,514 adult patients age ≥ 20) were abstracted from the SEER database (1973-2011). Results. HCC was more common among males (59.5% pediatric and 75.1% adults) and Caucasians (50.4% and 50.5%), p < 0.05. Children more often presented with fibrolamellar variant HCC (24.1% versus 0.3%, p = 0.71) and advanced HCC, including distant disease (33.1% versus 20.8%, p < 0.001), and tumors > 4 cm in size (79.6% versus 62.0%, p = 0.02). Pediatric HCC patients undergoing surgery (13.107 versus 8.324 years, p < 0.001) had longer survival than adult HCC patients. Overall mortality was lower (65.8% versus 82.0%, p < 0.001) in the pediatric HCC group. Conclusion. HCC is a rare pediatric malignancy that presents most often as an advanced tumor, >4 cm in Caucasian males. Children with HCC achieve significantly longer mean overall survival compared to adults with HCC, primarily attributable to the more favorable fibrolamellar histologic variant, and more aggressive surgical intervention, which significantly improves survival.

Probiotic administration can prevent necrotizing enterocolitis in preterm infants: A meta-analysis.

PURPOSE: Necrotizing enterocolitis (NEC) is the most common gastrointestinal emergency in preterm infants, affecting ~6-7% of very-low-birth-weight (VLBW) infants. Early intervention and aggressive treatment has improved clinical outcomes, but considerable morbidity continues to accrue to NEC survivors. This meta-analysis examines the impact of probiotics on the incidence of NEC and complications among VLBW infants. METHODS: A comprehensive literature search for all published randomized control trials (RCTs) assessing the use of probiotics to prevent NEC in VLBW infants was conducted using PubMed, Cochrane Central Registry of Controlled Trials, and Google Scholar (1966-2014). The incidences of NEC, sepsis, overall mortality, and time to reach full enteral feeds were analyzed. RESULTS: 20 RCTs involving 5982 preterm VLBW infants were analyzed. Risk of NEC was reduced by 49.1% (RR=0.509; 95% CI, 0.385-0.672; p<0.001), and overall mortality by 26.9% among infants receiving probiotics (RR=0.731; 95% CI, 0.577-0.926; p=0.009). An 8.1% reduction in sepsis was also observed in infants receiving probiotics (RR=0.919; 95% CI, 0.823-1.027; p=0.137). Time to reach full enteral feeds was reduced by 1.2 days among infants receiving probiotics (MD: -1.217; 95% CI, -2.151 to -0.283; p=0.011). CONCLUSION: The use of probiotic supplementation in preterm VLBW infants is associated with a significant reduction in the risk of NEC and overall mortality. Additional studies are required to determine the optimal genus, species, and dose of probiotic.