Purpose: We conducted a prospective study to evaluate a new hemorrhoidal bleeding score (HBS). Methods: All consecutive patients who had consulted between May 1, 2016 and June 30, 2017 for bleeding hemorrhoidal disease were prospectively assessed at a proctological department. The study was conducted in 2 stages. The first stage assessed the validity of the score on a prospective patient cohort. A second stage assessed the interobserver reproducibility of the score on another prospective cohort. Results: One hundred consecutive patients were studied (57 males; mean age, 49.70 years). A positive association between HBS and surgery indication was found (P<0.001). A cut-off value of the score of 5 (≤5 vs. >5) separated patients from surgical to medical-instrumental treatment with a sensitivity and specificity of 75.00% and 81.25%, respectively. In the multivariate analysis, only HBS was significantly associated with the operative decision (odds ratio, 12.22). Prolapse was no longer significantly associated with the surgical indication. After a mean follow-up after treatment of 7 months, HBS improved statistically significantly (P<0.0001). For the reproducibility of the score, an additional 30 consecutive patients (13 males; mean age, 53.14 years) were enrolled with an excellent agreement between 2 proctologists (kappa=0.983). Conclusion HBS is sensitive, specific, and reproducible. It can assess the severity of hemorrhoidal bleeding. It can discriminate between the most severe surgery-indicated patients and does so in a more efficient way than the Goligher prolapse score. It also allows quantifying the extent of change in hemorrhoidal bleeding after treatment.

Clinical microbiology has always been a slowly evolving and conservative science. The sub-field of bacteriology has been and still is dominated for over a century by culture-based technologies. The integration of serological and molecular methodologies during the seventies and eighties of the previous century took place relatively slowly and in a cumbersome fashion. When nucleic acid amplification technologies became available in the early nineties, the predicted "revolution" was again slow but in the end a real paradigm shift did take place. Several of the culture-based technologies were successfully replaced by tests aimed at nucleic acid detection. More recently a second revolution occurred. Mass spectrometry was introduced and broadly accepted as a new diagnostic gold standard for microbial species identification. Apparently, the diagnostic landscape is changing, albeit slowly, and the combination of newly identified infectious etiologies and the availability of innovative technologies has now opened new avenues for modernizing clinical microbiology. However, the improvement of microbial antibiotic susceptibility testing is still lagging behind. In this review we aim to sketch the most recent developments in laboratory-based clinical bacteriology and to provide an overview of emerging novel diagnostic approaches.
Bacteria/*genetics/isolation & purification/metabolism ; Bacterial Infections/diagnosis/*microbiology ; Electronic Nose ; High-Throughput Nucleotide Sequencing ; Humans ; Mass Spectrometry ; Molecular Diagnostic Techniques ; Nucleic Acid Amplification Techniques