The incidence of culture-negative NVO (CN-NVO) cases is increasing, presenting significant diagnostic and therapeutic challenges due to the inability to isolate causative organisms with conventional microbiological methods. Factors influencing the diagnosis of CN-NVO include prior antimicrobial therapy, low pathogen burden, fastidious or intracellular organisms, technical issues, and non-infectious mimickers. Diagnosis often relies on imaging modalities like magnetic resonance imaging (MRI) and computed tomography (CT)-guided biopsy, though these methods can sometimes fail to yield positive microbiological results. Advanced diagnostic tools, such as polymerase chain reaction (PCR), metagenomic next-generation sequencing (mNGS), and cell-free DNA analysis, may be necessary to identify the pathogen. The causative pathogen cannot be isolated in some patients, among which an empirical antimicrobial therapy should be initiated. This narrative review discusses the management, monitoring, surgical indications, and outcomes for patients with CN-NVO.

Background & objectives: Population and aging are major contributing factors influencing the increase in substance use disorder (SUD), which in itself affects mental health, particularly anxiety and depression. Cognitive behavioral therapy (CBT) and pharmacotherapy co-treatment are considered the gold standard for the treatment of SUD. Thus, the present study has been carried out to investigate the efficacy of brief CBT on the general health of opioid users. Methods: A randomized controlled trial (RCT) was conducted with forty opioid users whose addiction was dully confirmed by a psychiatrist at the drop-in center of the Ahvaz Jundishapur University of Medical Sciences. The patients were then randomly divided into two equal groups (n = 20). The control group was treated solely using methadone maintenance therapy (MMT); however, the intervention group underwent four sessions of CBT in addition to MMT. The general health questionnaire (GHQ) consisting of 28 items (Goldberg, 1979) was applied to both groups at the beginning and end of the study. The collected data was analyzed using IBM SPSS ver. 26, and data analysis was carried out using chi-square, t-test, Mann-Whitney, and Poisson regression model. P < 0.05 was statistically significant for all the aforementioned tests. Results: The mean age for the control and intervention groups were 37.95 ± 7.64 and 43.85 ± 9.92, respectively (p = 0.042). There was no statistically significant difference in terms of gender and levels of education (p = 0.311 and p = 0.540). Both groups differed statistically regarding marital status and occupation (p = 0.025 and 0.002). There was no significant statistical difference in all subclasses and the total scores of GHQ-28 for both groups, except for anxiety and insomnia in the intervention group (p = 0.038). After applying a Likert scale with a 23-point cut-off score, there was no statistically significant difference in terms of psychosis after intervention in the intervention group (p = 0.077). Conclusion: The results of the current study show that brief CBT is effective on psychiatric health, especially anxiety and sleep disorders, whereas brief CBT fails to affect the patient’s depression, somatic symptoms, and social dysfunction. Trial registration: The Iranian Registry of Clinical Trials (IRCT) approved the study design (IRCT registration number: IRCT20190929044917N1, registration date: 13/01/2020).

Background: Burn patients are more likely to get healthcare‐associated infections (HAIs). The current study aimed to investigate the characteristics of HAI and mortality risk factors among burn patients admitted to a tertiary center in Iran.Methods: A retrospective study was conducted in 2021 on burn patients who developed HAI after hospitalization in a tertiary center in Ahvaz, Iran. The records of patients admitted and managed between March 2019 and March 2020 were reviewed. Statistical analysis was carried out using IBM SPSS Version 26, with p < 0.05 considered statistically significant.Results: Of the 1,659 admitted patients, 395 (23.8%) developed HAI during the study period. After excluding patients with incomplete medical records and those with fungal or viral infections, 363 patients remained. The majority of these cases occurred in male patients. The most common type of HAI was burn wound infection (56.2%). Patients were mainly affected by Gram‐negative bacteria, Pseudomonas aeruginosa (39.7%), while the most common Gram‐positive bacteria was Staphylococcus epidermididis (9.6%). The most common antibiotic resistance among P. aeruginosa‐infected patients was reported against imipenem, followed by gentamicin and ciprofloxacin; however, the mentioned organism was mainly sensitive to colistin. Gender, age, bloodstream infection (BSI), ventilator‐associated infection (VAI), ICU admission, and total burned surface area (TBSA) resulted in 3.585, 1.028, 2.222, 7.469, 5.278‐, and 1.031 times higher mortality rates, respectively.Conclusion: Female gender, advanced age, BSI, VAI, and ICU admission are risk factors for HAI. These findings emphasize the need for focused infection prevention and management to improve high‐risk burn patient survival.

Native Vertebral Osteomyelitis (NVO) has seen a rise in incidence, yet clinical outcomes remain poor with high relapse rates and significant long-term sequelae. The 2015 IDSA Clinical Practice Guidelines initiated a surge in scholarly activity on NVO, revealing a patchwork of definitions and numerous synonyms used interchangeably for this syndrome. To systematically summarize these definitions, evaluate their content, distribution over time, and thematic clustering. Meta-epidemiological study with a systematic review of definitions. An extensive search of multiple databases was conducted, targeting trials and cohort studies dating from 2005 to present, providing a definition for NVO and its synonyms. Analysis of the diagnostic criteria that composed the definitions and the breaking up of the definitions in the possible combinations of diagnostic criteria. We pursued a thematic synthesis of the published definitions with Boolean logic, yielding single or multiple definitions per included study. Using 8 predefined diagnostic criteria, we standardized definitions, focusing on the minimum necessary combinations used. Definition components were visualized using Sankey diagrams. The literature search identified 8,460 references, leading to 171 studies reporting on 21,963 patients. Of these, 91.2% were retrospective, 7.6% prospective, and 1.2% RCTs. Most definitions originated from authors, with 29.2% referencing sources. We identified 92 unique combinations of diagnostic criteria across the literature. Thirteen main patterns emerged, with the most common being clinical features with imaging, followed by clinical features combined with imaging and microbiology, and lastly, imaging paired with microbiology. Our findings underscore the need for a collaborative effort to develop standardized diagnostic criteria. We advocate for a future Delphi consensus among experts to establish a unified diagnostic framework for NVO, emphasizing the core components of clinical features and MRI while incorporating microbiological and histopathological insights to improve both patient outcomes and research advancements.

Key Clinical Message: Choriocarcinoma of the fallopian tube is extremely rare and highly susceptible to early metastasis. Clinical manifestations of ectopic pregnancy and choriocarcinoma are the same, and all patients with ectopic pregnancy should be evaluated for choriocarcinoma based on histopathological findings. Adjuvant chemotherapy (after surgery) is the proposed treatment for tubal choriocarcinoma. Choriocarcinoma is a malignant epithelial tumor of the chorionic villi that often manifests after a normal or molar pregnancy. The primary tubal choriocarcinoma associated with ectopic pregnancy is extremely rare and can be misdiagnosed as an ectopic pregnancy since symptoms including vaginal bleeding, amenorrhea, elevated beta‐human chorionic gonadotropin (BHCG) levels, and pelvic pain are shared. A 34‐year‐old G4P3003 woman presented with a one‐week history of vaginal bleeding and right lower abdominal pain, which had intensified a day before admission. Clinical and paraclinical examinations pointed to a ruptured tubal pregnancy; hence, an emergency laparotomy was performed, and a right salpingectomy was carried out on the patient. However, a nonsignificant decline in BHCG level was observed, and histological examination revealed tubal choriocarcinoma; hence, a metastasis workup was carried out, yet no metastasis was detected. Six sessions of chemotherapy consisting of Etoposide, Methotrexate, Dactinomycin, Cyclophosphamide, and Vincristine (EMA‐CO) were administered without complication, in such a way that the BHCG level normalized after three sessions of chemotherapy. Evaluations after 1 year from the completion of chemotherapy revealed that the patient had no subsequent problems. Choriocarcinoma of the fallopian tube is extremely rare and highly susceptible to early metastasis. Clinical manifestations of ectopic pregnancy and choriocarcinoma are the same, and all patients with ectopic pregnancy should be evaluated for choriocarcinoma based on histopathological findings. Metastasis workup should be considered for all individuals with choriocarcinoma. Adjuvant chemotherapy (after surgery) is the proposed treatment for tubal choriocarcinoma.