Higher Rates of Complicated Appendicitis During the COVID-19 Pandemic: A Year-to-Year Analysis.

INTRODUCTION: The COVID-19 pandemic impacted presentation, management strategies, and patient outcomes of numerous medical conditions. The aim of this study is to perform a year-to-year comparison of clinical outcomes of patients with acute appendicitis (AA) before and during the pandemic. METHODS: Patients treated for AA during the initial 12-mo period of the pandemic at our institute were compared to those treated for AA during the 12-mo period before. Clinical and laboratory parameters, treatment strategies, intraoperative findings, pathology reports, and postoperative outcomes were compared. RESULTS: During the study period, 541 patients presented with AA. The median (interquartile range) age was 28 (21-40) y and 292 (54%) were males. 262 (48%) patients presented during the pre-COVID-19 period, while 279 patients (52%) presented during the COVID 19 pandemic. The groups were comparable for baseline clinical data and imaging results upon index admission. There was no significant difference in rate of nonoperative treatment between the Pre-COVID-19 and During-COVID-19 eras (51% versus 53%, P = 0.6) as well as the success rate of such treatment (95.4% versus 96.4%, P = 0.3). Significantly more patients presented with a periappendicular abscess during COVID-19 (4.6% versus 1.1%, P = 0.01) and median (interquartile range) operative time was significantly longer (78 (61-90) versus 32.5 (27-45) min, P < 0.001). Pathology reports revealed a higher rate of perforated appendicitis during COVID-19 (27.4% versus 10.2%, P < 0.001). CONCLUSIONS: Patients with AA present with higher rates of perforated and complicated appendicitis during the COVID-19 pandemic. The success rates of nonoperative management in selected patients with noncomplicated AA did not change during the pandemic and is a safe, feasible, option.

Management of Acute Appendicitis During the COVID-19 Pandemic: A Single-Centre Retrospective Cohort Study.

BACKGROUND: During the coronavirus disease 2019 (COVID-19) pandemic, the management of acute appendicitis shifted towards non-operative management in the United Kingdom (UK). The open approach was recommended over the laparoscopic approach due to the risk of aerosol generation and subsequent contamination. The aim of this study was to compare the overall management and surgical outcomes of the patients treated for acute appendicitis before and during the COVID-19 pandemic. MATERIALS AND METHODS: We performed a retrospective cohort study at a single district general hospital in the UK. We compared the management and outcome of the patients diagnosed with acute appendicitis before the pandemic, from March to August 2019, and during the pandemic, from March to August 2020. We looked at the patient demographics, methods of diagnosis, management, and surgical outcomes for these patients. The primary outcome of the study was the 30-day readmission rate. Secondary outcomes included length of stay and post-operative complications. RESULTS: Over the period of six months, a total of 179 patients were diagnosed with acute appendicitis in 2019 (Pre-COVID-19 pandemic, from March 1, 2019, to August 31, 2019) versus 152 in 2020 (during the COVID-19 pandemic, from March 1, 2020, to August 31, 2020). For the 2019 cohort, the mean age of the patients was 33 (range 6-86 years), 52% (n=93) were female, and the mean BMI was 26 (range 14-58). For the 2020 cohort, the mean age was 37 (range 4-93 years), 48% (n=73) of the patients were female, and the mean BMI was 27 (range 16-53). At the first presentation, in 2019, 97.2% of the patients (174 out of 179) received surgical treatment compared to 70.4% (107 out of 152) in 2020. Three per cent of the patients (n=5) were managed conservatively in 2019 (two out these failed conservative management) as compared to 29.6% (n=45) in 2020 (21 of these failed conservative management). Pre-pandemic, only 32.4% (n= 57, ultrasound (US) scan: 11, computer tomography (CT) scan): 45, both US and CT: 1) of the patients received imaging to confirm the diagnosis as compared to 53.3% during pandemic (n=81, US scan: 12, CT scan: 63, both US and CT: 6). Overall, the CT to US ratio increased. We found that during 2019, 91.5% (n=161/176) of the patients who received surgical treatment went through laparoscopic surgery as compared to only 74.2% (n=95/128) in 2020 (p<0.0001). Postoperative complications occurred in 5.1% (n=9/176) of the surgical patients in 2019 as compared to 12.5% (n=16/128) in 2020 (p<0.033). The mean length of hospital stay in 2019 was 2.9 days (range 1-11) versus 4.5 days in 2020 (range 1-57) (p<0.0001). The 30-day readmission rate was 4.5% (8/179) versus 19.1% (29/152) (p<0.0001). The 90-day mortality rate was zero for both cohorts. CONCLUSION: Our study shows that the management of acute appendicitis changed due to the COVID-19 pandemic. More patients went through imaging, especially CT scans for diagnosis and received non-operative management with antibiotics only. The open surgical approach became more common during the pandemic. This was associated with longer lengths of hospital stay, more readmissions, and an increase in postoperative complications.

Appendicular peritonitis as a variant of Crohn's disease manifestation in children recovered from a novel coronavirus infection COVID-19.

Immune changes arising against the background of COVID-19 can lead to the manifestation of autoimmune diseases and provoke the development of Crohn's disease. In the presented work, we describe two clinical cases of manifestation of Crohn's disease in children after suffering a novel coronavirus infection COVID-19. Moreover, the variant of manifestation in both cases was spilled purulent appendicular peritonitis. In the first case, the child underwent a traditional appendectomy and abdominal sanitation. However, the choice of traditional appendectomy in this version of the pathological process led to severe consequences for the patient (a complicated postoperative period and multiple surgical interventions), including for the formed intraperitoneal abscesses and intestinal fistula, which is most characteristic of Crohn's disease. Therefore, the patient was diagnosed with Crohn's disease only after numerous operations. Regarding the second case, the situation was completely different, despite the obvious manifestations of ARVI (sore throat, fever), which led to the belated diagnosis of appendicitis in this child. Laparoscopic appendectomy and simultaneous adequate abdominal sanitation made it possible to avoid repeated surgical interventions in this case. In both cases, patients at the diagnosis were sent to federal clinics to select specific therapy. In our opinion, it is worth paying close attention to pediatric patients with a novel coronavirus infection and abdominal pain syndrome since this may be onset of inflammatory bowel disease.Copyright © 2022, Dynasty Publishing House. All rights reserved.

Acute appendicitis

Acute appendicitis is inflammation of the vermiform appendix. It is the commonest general surgical emergency in children and young adults, yet its diagnosis can still confound even the most skilled surgeon due to its highly variable presentation of appendicitis, with fewer than 50% of patients exhibiting classical features. Taking a detailed history and performing a careful examination remains the cornerstone of diagnosis. Urinalysis and blood tests, particularly C-reactive protein, are useful adjuncts and are performed routinely. Radiological imaging, commonly ultrasound and computed tomography scans, also have a role when the diagnosis is unclear and/or other common conditions need to be excluded, such as gynaecological pathology in young females. Nevertheless 20% of appendices removed in UK are histologically normal. Appendicitis scoring systems may further assist in stratifying risk and increasing the accuracy of diagnosis. Recently, there has been growing interest in non-surgical management of appendicitis, particularly during the COVID-19 pandemic. Antibiotics alone have been used to successfully treat uncomplicated appendicitis (without perforation, abscess or gangrene) in the short-term, however nearly 40% of these cases eventually require appendicectomy. Surgery, usually laparoscopic appendicectomy, remains the treatment of choice for acute appendicitis and non-operative management is reserved for specific cases.Copyright © 2023

Coincidental or mimicking acute appendicitis secondary to MIS-C associated with SARS-CoV-2: A case report.

The predominant organic system involved in multisystem inflammatory syndrome in children associated with COVID-19 is the gastrointestinal system, which is observed in almost 90% of patients. Gastrointestinal symptoms can mimic acute appendicitis. There have been a few cases of misdiagnosed multisystem inflammatory syndrome in children associated with SARS-CoV-2 as appendicitis, and a few concomitant cases of a multisystem inflammatory syndrome associated with acute appendicitis during the COVID-19 pandemic. Here, we present the case of an 11-year-old girl who presented to our Intensive Care Unit with a 2-day history of fever, generalized abdominal pain, and vomiting. The clinical findings resulted in a clinical suspicion of acute appendicitis and subsequent surgery. While postoperatively, she became critically ill, and she was diagnosed with the multisystem inflammatory syndrome in children associated with COVID-19. When diagnosing children with acute appendicitis, healthcare professionals, especially pediatricians and surgeons, must pay attention to the multisystem inflammatory syndrome linked to the SARS-CoV-2 infection.

Appendicular peritonitis as a variant of Crohn's disease manifestation in children recovered from a novel coronavirus infection COVID-19.

Immune changes arising against the background of COVID-19 can lead to the manifestation of autoimmune diseases and provoke the development of Crohn's disease. In the presented work, we describe two clinical cases of manifestation of Crohn's disease in children after suffering a novel coronavirus infection COVID-19. Moreover, the variant of manifestation in both cases was spilled purulent appendicular peritonitis. In the first case, the child underwent a traditional appendectomy and abdominal sanitation. However, the choice of traditional appendectomy in this version of the pathological process led to severe consequences for the patient (a complicated postoperative period and multiple surgical interventions), including for the formed intraperitoneal abscesses and intestinal fistula, which is most characteristic of Crohn's disease. Therefore, the patient was diagnosed with Crohn's disease only after numerous operations. Regarding the second case, the situation was completely different, despite the obvious manifestations of ARVI (sore throat, fever), which led to the belated diagnosis of appendicitis in this child. Laparoscopic appendectomy and simultaneous adequate abdominal sanitation made it possible to avoid repeated surgical interventions in this case. In both cases, patients at the diagnosis were sent to federal clinics to select specific therapy. In our opinion, it is worth paying close attention to pediatric patients with a novel coronavirus infection and abdominal pain syndrome since this may be onset of inflammatory bowel disease.Copyright © 2022, Dynasty Publishing House. All rights reserved.

Appendicular peritonitis as a variant of Crohn's disease manifestation in children recovered from a novel coronavirus infection COVID-19.

Immune changes arising against the background of COVID-19 can lead to the manifestation of autoimmune diseases and provoke the development of Crohn's disease. In the presented work, we describe two clinical cases of manifestation of Crohn's disease in children after suffering a novel coronavirus infection COVID-19. Moreover, the variant of manifestation in both cases was spilled purulent appendicular peritonitis. In the first case, the child underwent a traditional appendectomy and abdominal sanitation. However, the choice of traditional appendectomy in this version of the pathological process led to severe consequences for the patient (a complicated postoperative period and multiple surgical interventions), including for the formed intraperitoneal abscesses and intestinal fistula, which is most characteristic of Crohn's disease. Therefore, the patient was diagnosed with Crohn's disease only after numerous operations. Regarding the second case, the situation was completely different, despite the obvious manifestations of ARVI (sore throat, fever), which led to the belated diagnosis of appendicitis in this child. Laparoscopic appendectomy and simultaneous adequate abdominal sanitation made it possible to avoid repeated surgical interventions in this case. In both cases, patients at the diagnosis were sent to federal clinics to select specific therapy. In our opinion, it is worth paying close attention to pediatric patients with a novel coronavirus infection and abdominal pain syndrome since this may be onset of inflammatory bowel disease.Copyright © 2022, Dynasty Publishing House. All rights reserved.

The Prevalence of COVID-19 in Asymptomatic Cases and Its Effect on Complication Development in Children Scheduled for Emergency and Urgent Surgery.

Objective: Although COVID-19 in childhood is often asymptomatic or has a more benign course, the safety of healthcare workers should be the primary goal because of the risk of contamination. In our study, we aimed to investigate the asymptomatic COVID-19 PCR positivity and its effect on the development of complications in emergency and non-deferred surgery cases that will help both the patient, the operating room and the health care workers. Material(s) and Method(s): This is a prospective study that was performed in patients under 18 years of age who were operated on due to emergency and urgent cases in the Ankara City Children's Hospital, which was serving as an anti-pandemic hospital. The patients were evaluated from May 1 to October 1, 2020. Of the 458 patients, 433 patients who met the criteria were included in the study. COVID-19 Nasopharyngeal swab (PCR) samples were taken from all patients along with preoperative examinations. Result(s): Of the 433 cases included in the study, 155 (33.5%) were girls and 278 (66.5%) were boys. It was determined that emergency cases constituted 389 (89.8%) of all cases. The most common emergency pathologies according to age groups were intestinal obstruction or atresia in the neonatal period, foreign body aspirations of the respiratory tract in the preschool period, and acute appendicitis in the school age. Nasal swab PCR results were positive in only four patients, this rate was found to be 0.9% in the entire study group, and postoperative complications and transmission to healthcare workers were detected at none. Conclusion(s): In this prospective study, low COVID-19 PCR positivity (0.9% prevalence) was detected in asymptomatic children scheduled for emergency or non-deferred surgery, and we believe that it will shed light on the planning of safe procedure practices.Copyright © 2021 Ankara Pediatric Hematology Oncology Training and Research Hospital. All rights reserved.

One case of novel coronavirus pneumonia complicated with acute appendicitis in children.

Emergent laparoscopic appendectomy was performed for a boy of occult novel coronavirus pneumonia with a presenting symptom of acute appendicitis at Wuhan Children's Hospital. Postoperative lung computed tomography (CT) indicated a round dense shadow with slightly ground-glass-like margins in the dorsal segment of right lower lung. Pharyngeal swab nucleic acid test was positive for 2019-nCoV and thus a definite diagnosis of COVID-19 was made. Prior to the onset, he had close contacts with his grandmother with a definite diagnosis of COVID -19. It proved that intra-family transmission was an important transmission route for pediatric 2019-nCoV infection. In this case, the respiratory symptoms of COVID-19 were not obvious during an early stage. The major symptoms were nausea, vomiting and abdominal pain. For individuals coming from the epidemic area, with a history of exposure and developing acute surgical conditions, preoperative pulmonary CT scan is necessary for screening COVID-19.Copyright © 2020 by the Chinese Medical Association.

COVID19 detection in appendix of acute appendicitis in a child: a case report and review of literature.

BACKGROUND: Gastrointestinal symptoms are one of the most common presentations of Coronavirus disease-19 (COVID-19), even in children. Higher rates of complicated appendicitis have been demonstrated in the era of the COVID-19 outbreak, and it has been recently suggested that acute appendicitis may occur as a complication of COVID-19. However, the relationship between appendicitis and COVID-19 remains unclear. CASE PRESENTATION: A 7-year-old male presented to the pediatric emergency department with 2 days' history of lower abdominal discomfort and tenderness. On examination, his abdomen was distended with diffuse mild tenderness at the lower abdomen, which was aggravated by movement. He was also tested and was found to be positive for SARS-CoV-2. Computed tomography showed perforated appendicitis with a fecalith. The patient was admitted and laparoscopic appendectomy was successfully performed. Postoperatively, a minor intra-abdominal abscess was present, which successfully treated with antibiotics. Histopathology showed a markedly inflamed appendix with mucosal ulceration and transmural neutrophilic inflammation, which was consistent with phlegmonous appendicitis. Reverse transcription quantitative polymerase chain reaction using a surgically extracted appendix specimen revealed the presence of SARS-CoV-2 virus, which indicated a pathophysiological relationship between appendicitis and COVID-19. CONCLUSION: The present case will provide further understanding of pediatric patients with concomitant COVID-19 and acute appendicitis.

Differentiating abdominal pain due to COVID-19 associated multisystem inflammatory syndrome from children with acute appendicitis: a score system.

PURPOSE: Differentiating abdominal pain due to coronavirus disease (COVID-19)-associated multisystem inflammatory syndrome (MIS-C) in children with acute appendicitis (AA) can cause diagnostic dilemmas. This study aimed to evaluate the efficacy of a previously described scoring system and improve its diagnostic ability in differentiating between these diseases. METHODS: This study was conducted between March 2020 and January 2022. Patients who had MIS-C with gastrointestinal system (GIS) involvement and patients who underwent surgery for appendicitis were included. First, all patients were evaluated using the new scoring system (NSS). The groups were compared by adding new MISC-specific parameters to NSS. The scoring system was evaluated using propensity score matching (PSM). RESULTS: A total of 35 patients with abdominal pain due to GIS involvement in MIS-C (group A) and 37 patients with AA who had ALT, PRC, and D-dimer results at their first admission (group B) were included in the study. The mean age of patients in group A was lower than that of patients in group B (p < 0.001). False NSS positivity was found in 45.7% of the patients with MIS-C. Lymphocyte (p = 0.021) and platelet counts (p = 0.036) were significantly lower in the blood count and serum D-dimer (p = 0.034), C-reactive protein (CRP) (p < 0.001), and procalcitonin (p < 0.001) were significantly higher in the MIS-C group. We created a scoring system called the Appendicitis-MISC Score (AMS) using the NSS and new parameters. The sensitivity and specificity of AMS diagnostic scores were 91.9% and 80%, respectively. CONCLUSION: MIS-C with GIS involvement may present as acute abdomen. It is difficult to differentiate this condition from acute appendicitis. AMS has been shown to be useful for this differentiation.

Is it possible to predict the severity of acute appendicitis? Reliability of predictive models based on easily available blood variables.

INTRODUCTION: Recent evidence confirms that the treatment of acute appendicitis is not necessarily surgical, and selected patients with uncomplicated appendicitis can benefit from a non-operative management. Unfortunately, no cost-effective test has been proven to be able to effectively predict the degree of appendicular inflammation as yet, therefore, patient selection is too often left to the personal choice of the emergency surgeon. Our paper aims to clarify if basic and readily available blood tests can give reliable prognostic information to build up predictive models to help the decision-making process. METHODS: Clinical notes of 2275 patients who underwent an appendicectomy with a presumptive diagnosis of acute appendicitis were reviewed, taking into consideration basic preoperative blood tests and histology reports on the surgical specimens. Variables were compared with univariate and multivariate analysis, and predictive models were created. RESULTS: 18.2% of patients had a negative appendicectomy, 9.6% had mucosal only inflammation, 53% had transmural inflammation and 19.2% had gangrenous appendicitis. A strong correlation was found between degree of inflammation and lymphocytes count and CRP/Albumin ratio, both at univariate and multivariate analysis. A predictive model to identify cases of gangrenous appendicitis was developed. CONCLUSION: Low lymphocyte count and high CRP/Albumin ratio combined into a predictive model may have a role in the selection of patients who deserve appendicectomy instead of non-operative management of acute appendicitis.

Acute appendicitis presenting with MIS-C secondary to COVID-19.

Acute Appendicitis (AA) is among the most common causes of abdominal pain in children. Several physical exam findings, scoring systems, and imaging studies, such as ultrasonography and computed tomography, exist to assist clinicians in diagnosing acute appendicitis. Despite multiple tools for assessing suspected acute appendicitis, it remains a challenge to diagnose acute appendicitis in the pediatric population. A challenge that becomes increasingly more difficult if presenting with a comorbid condition. With the emergence of coronavirus disease 2019 (COVID-19) and subsequent discovery of multisystem inflammatory syndrome in children (MIS-C), this case series presents three pediatric cases of acute appendicitis presenting concurrently with MIS-C secondary to prior COVID-19 infection thus illustrating potential complications to diagnosing and managing acute appendicitis.

The Prevalence of COVID-19 in Asymptomatic Cases and Its Effect on Complication Development in Children Scheduled for Emergency and Urgent Surgery

Objective: Although COVID-19 in childhood is often asymptomatic or has a more benign course, the safety of healthcare workers should be the primary goal because of the risk of contamination. In our study, we aimed to investigate the asymptomatic COVID-19 PCR positivity and its effect on the development of complications in emergency and non-deferred surgery cases that will help both the patient, the operating room and the health care workers. Material and Methods: This is a prospective study that was performed in patients under 18 years of age who were operated on due to emergency and urgent cases in the Ankara City Children's Hospital, which was serving as an anti-pandemic hospital. The patients were evaluated from May 1 to October 1, 2020. Of the 458 patients, 433 patients who met the criteria were included in the study. COVID-19 Nasopharyngeal swab (PCR) samples were taken from all patients along with preoperative examinations. Results: Of the 433 cases included in the study, 155 (33.5%) were girls and 278 (66.5%) were boys. It was determined that emergency cases constituted 389 (89.8%) of all cases. The most common emergency pathologies according to age groups were intestinal obstruction or atresia in the neonatal period, foreign body aspirations of the respiratory tract in the preschool period, and acute appendicitis in the school age. Nasal swab PCR results were positive in only four patients, this rate was found to be 0.9% in the entire study group, and postoperative complications and transmission to healthcare workers were detected at none. Conclusion: In this prospective study, low COVID-19 PCR positivity (0.9% prevalence) was detected in asymptomatic children scheduled for emergency or non-deferred surgery, and we believe that it will shed light on the planning of safe procedure practices.

Acute Appendicitis in COVID-19-Positive Children: Report of 4 Cases from an Endemic Area in Northeastern Romania.

Acute appendicitis (AA) is one of the most common surgical emergencies in children. Some reports have suggested that the COVID-19 pandemic was responsible for delays in the diagnostic and proper treatment of AA in pediatric patients. The aim of our study was to perform a retrospective study of cases of AA in children with SARS-CoV-2 infection treated in a highly endemic area for COVID-19 in Romania during a 2-year time interval. The SARS-CoV-2 infection had no unfavorable impact on children who presented with AA. Further data analysis should clarify the overall influence of COVID-19 on the management of surgical pediatric patients in such endemic areas.

The Influence of the COVID-19 Pandemic on the Prevalence, Characteristics, Management, and Outcomes of Acute Appendicitis at the Academic Tertiary Center, Jeddah.

BACKGROUND: Acute appendicitis is the leading cause of acute abdominal pain that requires immediate intervention. Nonetheless, during COVID-19, hospital visits decreased as a result of serious COVID-19 concerns at that time, resulting in a decreased number of diagnosed cases with acute appendicitis due to COVID-19 restriction issues. OBJECTIVES: To report the percentage numbers, characteristics, applied management, and outcomes of patients with acute appendicitis during the COVID-19 pandemic and compare them to pre-COVID-19 cases. METHODS: A retrospective cohort study included all patients with acute appendicitis in the determined periods "pre-COVID-19" and "during COVID-19" at King Abdul-Aziz Medical City, Academic Tertiary Center, Jeddah, Saudi Arabia. Mean and standard deviation were used, while categorical data were reported as frequencies and percentages. Variables were analyzed by the Chi-squared test, Fisher's exact test, and Mann-Whitney test as appropriate. RESULTS: A total of 298 patients were included. The period of the pre-COVID-19 pandemic had 161 (54%) patients, while 137 (46%) were identified during COVID-19. The number of laparoscopic appendectomies performed during COVID-19 was less than the pre-COVID-19 pandemic of 96 cases (70.1%) vs 133 cases (82.6%) (P=0.0106). Uncomplicated appendicitis was the most commonly reported type of appendicitis in both periods: 113 (82.5%) during COVID-19 vs 135 (83.9%) pre-COVID-19, (P=0.7526). Furthermore, the number of patients who presented to the ER between 24 and 48 hours after the onset of symptoms was similar before and during the pandemic: 111 (68.9%) vs 89 (65%). CONCLUSION: Overall, we conclude that during the COVID-19 period, there was a reduction in the number of patients presenting with acute appendicitis and a lower chance of undergoing laparoscopic appendectomy due to COVID-19 restrictions. There was also an increase in perforated appendicitis and a decrease in gangrenous appendicitis.

The role of imaging in the diagnosis of acute appendicitis during the COVID-19 pandemic: a retrospective cohort study.

Acute appendicitis is one of the most common general surgical emergencies worldwide; however, its diagnosis remains challenging, with a high proportion of negative appendicectomies. The purpose of this study was to investigate the benefit of routine use of pre-operative imaging for the evaluation of suspected appendicitis. This retrospective cohort study included all cases of appendicectomies performed for suspected acute appendicitis during the first and second peaks of the COVID-19 pandemic, between March 2020 and February 2021. The control group included all cases of appendicectomies performed for suspected acute appendicitis in the previous 12 months (March 2019-February 2020). One hundred and four patients underwent appendicectomy in the study group, compared to 209 in the control group, with similar gender distribution but a significantly higher median age in the study group (33 vs. 28, p = 0.001). The two groups had similar rates of perforation and similar median white cell count (WCC) and CRP. Imaging was used in 80.77% of the patients in the study group, compared to 61.72% in the control group (p = 0.001), with 55.77% of patients in the study group undergoing CT scans. Despite this, the negative appendicectomy rate (NAR) in the two groups did not differ significantly (11.54% vs. 15.79%, p = 0.320). The increase in the use of imaging for the diagnosis of acute appendicitis during the COVID-19 pandemic did not lead to a significantly lower negative appendicectomy rate. Registration: The study was pre-registered at ClinicalTrials.gov (NCT05205681).

The Prevalence of COVID-19 in Asymptomatic Cases and Its Effect on Complication Development in Children Scheduled for Emergency and Urgent Surgery.

Objective: Although COVID-19 in childhood is often asymptomatic or has a more benign course, the safety of healthcare workers should be the primary goal because of the risk of contamination. In our study, we aimed to investigate the asymptomatic COVID-19 PCR positivity and its effect on the development of complications in emergency and non-deferred surgery cases that will help both the patient, the operating room and the health care workers. Material(s) and Method(s): This is a prospective study that was performed in patients under 18 years of age who were operated on due to emergency and urgent cases in the Ankara City Children's Hospital, which was serving as an anti-pandemic hospital. The patients were evaluated from May 1 to October 1, 2020. Of the 458 patients, 433 patients who met the criteria were included in the study. COVID-19 Nasopharyngeal swab (PCR) samples were taken from all patients along with preoperative examinations. Result(s): Of the 433 cases included in the study, 155 (33.5%) were girls and 278 (66.5%) were boys. It was determined that emergency cases constituted 389 (89.8%) of all cases. The most common emergency pathologies according to age groups were intestinal obstruction or atresia in the neonatal period, foreign body aspirations of the respiratory tract in the preschool period, and acute appendicitis in the school age. Nasal swab PCR results were positive in only four patients, this rate was found to be 0.9% in the entire study group, and postoperative complications and transmission to healthcare workers were detected at none. Conclusion(s): In this prospective study, low COVID-19 PCR positivity (0.9% prevalence) was detected in asymptomatic children scheduled for emergency or non-deferred surgery, and we believe that it will shed light on the planning of safe procedure practices. Copyright © 2021 Ankara Pediatric Hematology Oncology Training and Research Hospital. All rights reserved.

A diagnostic conundrum: case of acute appendiceal abscess mimicking multisystem inflammatory syndrome in children in a toddler

Case Report: Patients with Multisystem Inflammatory Syndrome in Children (MIS-C) can commonly present with gastrointestinal symptoms of abdominal pain, vomiting, or diarrhea. These symptoms along with high fever and elevated inflammatory markers can often mask underlying gastrointestinal inflammation and lead to a diagnostic dilemma. Case Presentation: We report a case of a 16-month-old with a history of exposure to SARS-Cov-2 virus, who presented with fever, cough, vomiting, and decreased activity. Her initial workup showed neutrophil-predominant leukocytosis with elevated CRP, ferritin, NTProBNP, and fibrinogen. Serology was positive for COVID-19 IgG antibodies, strongly favoring a diagnosis of MIS-C. Initial CT of the abdomen showed findings consistent with mild enteritis. Intravenous immunoglobulin was not administered as leukocytosis and all inflammatory markers except CRP improved during the course of her hospital stay with parenteral antibiotics, but she remained febrile with worsening abdominal symptoms. She then developed classic symptoms of peritonitis with tenderness and rigidity. Ultrasound of abdomen was inconclusive due to overlying bowel gas. Repeat CT of the abdomen showed multiple intra-abdominal abscesses with the largest rim enhancing lesion in the right lower quadrant. Her presentation was consistent with acute appendiceal abscess due to perforated appendix that improved with CT guided drainage and three weeks of intravenous antibiotics. She was then discharged and planned for an interval appendectomy after two weeks. [Figure presented] Conclusion(s): Symptoms of appendiceal abscess can mimic MIS-C. This case underscores the importance of considering appendicitis in the differential diagnosis in patients with MIS-C. Appendicitis can be missed in toddlers. Hence, clinical suspicion and repeat imaging is key for early diagnosis in this age group. CT Abdomen and Pelvis with intravenous and oral contrast showing findings of perforated, complicated acute appendicitis, with multiple abscesses. Copyright © 2023 Southern Society for Clinical Investigation.

Diagnostic performance of serum pentraxin-3 in pediatric acute appendicitis: a prospective diagnostic validation study.

INTRODUCTION: Pediatric acute appendicitis (PAA) is a pathology with a high rate of diagnostic error. The search for new diagnostic tools is justified by the high morbidity and healthcare costs associated with diagnostic error. METHODS: We designed a prospective study to validate serum pentraxin-3 (PTX3) as a diagnostic tool in PAA. Participants were divided into three groups: (1) patients with no underlying pathology (2) patients with non-surgical abdominal pain and (3) patients with a confirmed diagnosis of PAA. For further analyses, patients in group 3 were divided into complicated or uncomplicated PAA. Quantitative variables were expressed as medians and interquartile ranges and categorical variables as percentages. Quantitative variables were compared using the Kruskal-Wallis test and the Mann-Whitney U test. Diagnostic performance was evaluated with ROC curves. RESULTS: This study included 215 patients divided into group 1 (n = 63), group 2 (n = 53) and group 3 (n = 99). Median serum PTX3 values were 2.54 (1.70-2.95) ng/mL, 3.29 (2.19-7.64) ng/mL and 8.94 (6.16-14.05) in groups 1, 2 and 3, respectively (p = 0.001). Patients with complicated PAA showed significantly higher values than patients with uncomplicated PAA (p = 0.04). The AUC (group 2 vs. 3) was 0.77 (95% CI 0.69-0.85) and the best cut-off point was at 7.28 ng/mL, with a sensitivity of 61.3% and a specificity of 73.1%. The AUC (complicated vs. uncomplicated PAA) was 0.65 (95% CI 0.54-0.77) and the best cut-off point was 12.33 ng/mL, with a sensitivity of 51.72% and a specificity of 72.73%. CONCLUSIONS: The diagnostic ability of serum PTX3 in PAA is only moderate and therefore it cannot be considered a definitive diagnostic test. The discriminatory ability of PTX3 between complicated and uncomplicated PAA is poor. These findings, which contrast with those reported to date, should be validated with future properly designed prospective studies.