Clinical and surgical approach to umbilical disorders in calves - literature review Abordagem clínica e cirúrgica das afecções umbilicais em bezerros - revisão de literatura Francisco Décio de Oliveira Monteiro 1 *; Carla Rozilene Guimarães Silva 2 ; Thiago da Silva Cardoso 3 ; José Diomedes Barbosa Neto 4 ; Pedro Paulo Maia Teixeira 5 Highlights Demonstration of umbilical components of bovine fetuses. Possibility of using laparoscopy in the diagnostic umbilical disorders in calves. Possibility of using laparoscopy in the surgical treatment of omphalopathy. Correct diagnosis of umbilical disorders allows for a good surgical plan. Abstract Umbilical disorders, which frequently occur in calves, are among the major causes of economic losses in herds. Antibiotic therapy alone is efective for some infectious cases, but surgical intervention is often indicated. This review aims to provide an overview of the clinical and surgical perspectives of the principal umbilical disorders in calves. The umbilicus may be afected by infectious or non-infectious conditions, including hernia, persistent urachus, omphalitis, urachitis, omphalophlebitis, and omphaloarteritis. Infectious varieties can culminate in sepsis and sometimes even involve other organs. Under these conditions, the chief complaint of calves tends to be apathy and visible swelling in the umbilical region. When surgery is indicated, the veterinary surgeon needs to have a thorough understanding of umbilical disorders, which coupled with careful clinical examination, will enable the formulation of an efective surgical plan. Surgical principles linked to pre-, trans-, and post-operative care must be considered, as recovery depends upon the surgery performed, pathological factors, and the patient’s individual response. Some of the most common surgeries performed include herniorrhaphy, urachus, and umbilical vein resection. Several technological 1 Student of the Doctoral Course of the Animal Health in the Amazon Graduate Program, PPGSAAM, Instituto de Medicina Veterinária da Universidade Federal do Pará, IMV/UFPA, Castanhal, PA, Brazil. E-mail: deciomonteiro@ifto. edu.br 2 Student of the Doctoral Course of the Animal Health in the Amazon Graduate Program PPGSAAM, IMV/UFPA, Castanhal, PA, Brazil. E-mail: carlarozilene@hotmail.com 3 Student of the Graduate Course in Veterinary Medicine, Instituto de Medicina Veterinária, IMV/UFPA, Castanhal, PA, Brazil. E-mail: thiagodacardoso09@gmail.com 4 Prof. Dr., Animal Reproduction in the Amazon Graduate Program, REPROAMAZON, IMV/UFPA, Castanhal, PA, Brazil. E-mail: diomedes@ufpa.br 5 Prof. Dr., Animal Health in the Amazon Graduate Program, PPGSAAM, Instituto de Medicina Veterinária, IMV/UFPA, Castanhal, PA, Brazil. E-mail: ppaulomt@ufpa.br * Author for correspondence 2803 Semina: Ciênc. Agrár. Londrina, v. 43, n. 6, p. 2803-2822, nov./dez. 2022 Received: Oct. 18, 2021 - Approved: Nov. 22, 2022 DOI: 10.5433/1679-0359.2022v43n6p2803 REVISÃO / REVIEW