Publications by authors named "Kostev K"

Background: This study aims to evaluate the current rates and outcomes of minimally invasive versus open surgery for colonic diverticular disease in Germany, using a nationwide dataset.

Methods: We analyzed data from 36 hospitals, encompassing approximately 1.25 million hospitalizations from 1 January 2019 to 31 December 2023.

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Background: Discharge against medical advice (DAMA) disrupts continuity of care and is associated with increased readmission rates, morbidity, and mortality. While extensively studied in general hospital populations, its prevalence and associated factors in cancer patients, where treatment adherence is critical for outcomes, remain underexplored.

Methods: This multicenter, cross-sectional study analyzed anonymized data from the IQVIA hospital database, including cancer patients hospitalized in 36 German hospitals between January 2019 and December 2023.

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Purpose: The purpose of this study was to investigate a possible association between Herpes Zoster (HZ) and the subsequent diagnosis of breast cancer (BC).

Methods: Utilizing the Disease Analyzer database, anonymized medical records from German office-based practices were accessed. Longitudinal data of female patients aged 18 years and above diagnosed with HZ between 2005 and 2021 were included.

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Background: Since previous studies have reported contradictory findings regarding the relationship between schizophrenia and cancer, we evaluated the association between schizophrenia and cancer diagnoses.

Methods: In this retrospective cohort study, the IQVIA Disease Analyzer database was utilized to examine the incidence of cancer among patients aged over 18 years diagnosed with schizophrenia in German general practices from 2005 to 2022. Patients with schizophrenia were compared with those without the condition, with adjustments made for age, sex, index year of diagnosis, average annual practitioners visit frequency, and comorbidity.

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Aim: Our aim was to identify multimorbidity clusters and, in particular, to examine their contribution to well-being outcomes among the oldest old in Germany.

Methods: Data were taken from the large nationally representative D80+ study including community-dwelling and institutionalized individuals aged 80 years and over residing in Germany (n = 8,773). The mean age was 85.

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Purpose: Anal fissures and anorectal fistulas are diseases often associated with significant pain and prolonged discomfort, resulting in a significantly reduced quality of life (QoL). They are not only a surgical problem but also have a profound psychosocial impact and influence on QoL. The aim of this study was to investigate the incidence of depression in patients with these pathologies and to highlight the need to address the psychosocial aspects of these diseases.

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Objectives: We determined the frequency of drug shortages of antiseizure medication (ASM) availability in Germany.

Methods: Retrospective and descriptive analysis of databases of 2 pharmaceutical wholesalers in Germany with a market share of about 45% of the German market in July 2023 (chosen arbitrarily) focusing on antiseizure drug shortages (i.e.

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There is a scarcity of data on the long-term relationship between cancer and chronic low back pain (CLBP). Therefore, this retrospective cohort study investigated the association between cancer and the 10-year incidence of CLBP in Germany. Data collected in 1293 German general practices between 2005 and 2022 were used for the study.

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Article Synopsis
  • This study aimed to compare the effectiveness of Angocin versus standard antibiotics for treating urinary tract infections (UTIs) in terms of preventing early and recurrent infections, complications, and the need for additional prescriptions.
  • Using data from over 14,000 patients diagnosed with UTI between 2005 and 2021, researchers found that patients prescribed Angocin had significantly lower odds of experiencing early relapses and recurrent infections compared to those on antibiotics.
  • The results suggest that Angocin might be a preferable treatment option, as it was also linked to fewer subsequent antibiotic prescriptions, although the study found a weak, non-significant trend towards a reduction in serious kidney complications (pyelonephritis) associated with its use.
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: Primary aldosteronism (PA) is a common cause of endocrine hypertension, characterized by excessive aldosterone secretion leading to hypertension, hypokalemia, and metabolic alkalosis. While historically diagnosed based on this classic triad of symptoms, current understanding reveals a more nuanced presentation. This study aimed to investigate the prevalence of PA-associated diseases in a large German population.

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Background: Documented risk factors and prodromal features of dementia in primary care practices may support dementia prevention and early detection in routine care.

Objective: To identify documented prodromal features and risk factors of dementia before the incident dementia diagnosis in German primary care practices.

Methods: This case-control study used documented diagnoses (risk factors, prodromal features) and prescriptions of primary care practices for 73,717 patients with dementia disease and 73,717 matched controls (ratio 1:1).

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: The aim of the present study was to explore whether diabetes mellitus (DM) is associated with in-hospital mortality in patients admitted for femur fractures. : Our multicenter case-control study included patients aged ≥65 with a primary diagnosis of femur fracture with and without DM treated in 36 German hospitals between January 2019 and December 2023. Patients with DM were matched to patients without DM (1:3) using propensity scores based on age and sex.

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Biologics are a cornerstone in the treatment of severe cases of inflammatory bowel disease (IBD) and aim to control the disease and improve quality of life. This study investigated changes in nonbiologic medication prescriptions for IBD patients initiating biologic therapy in Germany. This study used data from anonymized pharmacy records in the German longitudinal prescription (LRx) database and included biologic-naive IBD patients who received their first biologic therapy prescription between 2016 and 2022.

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Appendicitis is 1 of the most frequent diseases worldwide. In general, it is treated with appendectomy, which, in almost all cases, leads to the healing of the disease and averts acute complications. However, only limited data regarding long-term sequalae, including inflammatory bowel diseases following appendicitis are available.

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Article Synopsis
  • - The study investigates the link between dynapenic abdominal obesity (DAO) and disability in daily living activities among older adults in low- and middle-income countries, finding DAO increases the risk of disability by over twice compared to those without it.
  • - Based on data from over 20,000 adults aged 60 and above, DAO was defined by low handgrip strength and high waist circumference, with disability measured by difficulties in daily activities.
  • - Diabetes, hypertension, and angina were identified as significant mediators in the relationship between DAO and disability, highlighting the need for further research on how addressing DAO could mitigate disability risks in older populations.
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Osteoporosis and bone fractures affect health and quality of life. Since bone disease is multifactorial, identifying risk factors is key in prevention. There are multiple reports on how viral hepatitis, especially chronic hepatitis B (CHB) and chronic hepatitis C (CHC), are affecting bone disease, but results vary.

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  • Depression is a widespread mental illness affecting nearly 30% of adolescents globally, and this study focuses on the prevalence and types of antidepressant prescriptions among diagnosed adolescents in Germany.
  • A cohort of 6,338 adolescents aged 13-17 was analyzed, revealing that 61% were prescribed antidepressants, with prescription rates increasing with age; Fluoxetine was the most commonly prescribed medication.
  • Factors such as age, severity of depression, and co-existing conditions like obsessive-compulsive disorder and eating disorders significantly influenced antidepressant prescriptions in this demographic.
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  • The study aimed to assess whether prescribing Angocin at the time of an acute bronchitis diagnosis could reduce relapse rates, subsequent antibiotic prescriptions, chronic bronchitis development, and sick leave duration.
  • It involved a comparison of patients prescribed Angocin against those given other treatments like thyme products, essential oils, mucolytics, or antibiotics, analyzing data from German general practices between 2005 and 2022.
  • Results showed that Angocin significantly lowered the chances of recurrent acute bronchitis and subsequent antibiotic use, as well as the risk of developing chronic bronchitis compared to other treatments.
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Objective: Peritonsillar abscess (PTA) is a common soft tissue infection of the head and neck. It remains unclear to what extent inflammatory diseases of the palatine tonsils or other infections contribute to the development of PTA. This study examines the demographic characteristics and seasonal variations of acute tonsillitis (aT) and PTA in ENT practices in Germany using a practice database.

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Background: The predicted prevalence of people with dementia (PWD) in Germany has risen to 1.8 million since 2010. In the near future, we will see the approval of antibody therapies.

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Background: There is a lack of studies investigating death anxiety among the oldest old based on a large, nationally representative sample during the pandemic. Thus, our aim was to investigate the prevalence and determinants of death anxiety among the oldest old in Germany during the Covid-19 pandemic.

Methods: Cross-sectional data were taken from the 'Old Age in Germany' (D80+) study.

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  • The study examined the effects of Hawthorn special extract WS 1442 on cardiovascular health, specifically its antiarrhythmic properties compared to magnesium/potassium supplements.
  • A total of 4,550 patients prescribed WS 1442 were compared to 4,550 matched patients using magnesium/potassium over five years, tracking the occurrence of heart arrhythmias like atrial fibrillation and tachycardia.
  • Results indicated that WS 1442 was associated with significantly lower rates of atrial fibrillation (10.8% vs. 16.4%) and tachycardia (8.3% vs. 9.4%), showcasing its potential for treating and preventing heart rhythm disorders.
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  • * A study involving patients with pancreatic cancer and T2D found that higher levels of HbA1c (6.5-8.4% and ≥8.5%) were significantly associated with an increased risk of pancreatic cancer diagnosis.
  • * Among diabetes treatments, only the SGLT-2 inhibitor showed a negative association with pancreatic cancer risk, suggesting it may help reduce this risk in T2D patients.
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: Aortic valve stenosis (AS) represents one of the most common valve diseases in the western world. It often leads to severe symptoms that can lead to a restriction of everyday life and thus to psychological stress. Therefore, we aimed to investigate the association between AS and depression in outpatients in Germany.

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