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Reproduction in Domestic Animals =... Jul 2009The necessity, and in particular the timing, of gonadectomy in dogs and cats is still controversial. This is mainly because gonadectomy confers a mixture of benefits and... (Review)
Review
The necessity, and in particular the timing, of gonadectomy in dogs and cats is still controversial. This is mainly because gonadectomy confers a mixture of benefits and adverse effects that depend upon the age at neutering, sex, species and breed. In this paper, the long-term risks and benefits of gonadectomy, at various ages, in dogs and cats are reviewed using data describing the effects of desexing on the urogenital tract and on other medical conditions, such as orthopaedic diseases, immune-mediated diseases, tumour development and behaviour.
Topics: Animals; Cats; Dogs; Female; Male; Orchiectomy; Ovariectomy
PubMed: 19754532
DOI: 10.1111/j.1439-0531.2009.01437.x -
Journal of the American Veterinary... Dec 2007Elective gonadectomy of dogs and cats is one of the most common veterinary procedures in the United States. Increasingly, dog owners and members of the veterinary... (Review)
Review
Elective gonadectomy of dogs and cats is one of the most common veterinary procedures in the United States. Increasingly, dog owners and members of the veterinary profession throughout the world have questioned the optimal age for performance of these procedures and whether these procedure should even be performed as elective surgeries.
Topics: Age Factors; Animals; Behavior, Animal; Cat Diseases; Cats; Dog Diseases; Dogs; Female; Hysterectomy; Life Expectancy; Male; Orchiectomy; Ovariectomy; Population Control; Postoperative Complications; Weight Gain
PubMed: 18052800
DOI: 10.2460/javma.231.11.1665 -
Ugeskrift For Laeger Nov 2023
Topics: Female; Humans; Male; Orchiectomy; Hysterectomy; Salpingectomy; Laparoscopy
PubMed: 38018743
DOI: No ID Found -
Veterinary Ophthalmology May 2020To determine incidence and risk factors of post-sterilization hyphema in shelter cats.
OBJECTIVE
To determine incidence and risk factors of post-sterilization hyphema in shelter cats.
ANIMALS STUDIED
Retrospective medical record review of 1204 cats and prospective screening of 195 cats.
PROCEDURES
The study consisted of three parts: (a) Survey responses were collected from 20 veterinarians, who perform high-quality high-volume spay-neuter (HQHVSN) in both shelter and public clinic settings; (b) medical records of 1204 cats were analyzed retrospectively over a 14-month time period; and (c) ophthalmic examinations, including tonometry, were performed prospectively on 195 cats before and after sterilization surgery over 8 weeks.
RESULTS
Nine of 20 surveyed veterinarians reported having witnessed hyphema in cats following sterilization surgery. Retrospective review of 1204 medical record and prospective screening of 195 cats showed that three juvenile (<1 year of age) male cats (<2 kg) developed hyphema within 1 hour following surgery (0.2% incidence). In all three affected cats, anesthesia was induced with tiletamine/zolazepam (3 of 523 cats induced with this drug combination; 0.6% incidence), and hyphema resolved within 20 hours. Mean intraocular pressures as measured by Icare® TonoVet were (mean ± standard deviation) 11.5 ± 3.8 mm Hg and 21.7 ± 4.6 mm Hg for juvenile (<1 year of age) and adult (>1 year of age) cats, respectively.
CONCLUSIONS
Survey responses and three observed cases confirm the existence of feline post-sterilization hyphema with an estimated incidence of 0.2%. The underlying mechanism for this occurrence remains unknown.
Topics: Animals; Cats; Female; Hyphema; Hysterectomy; Incidence; Male; Michigan; Orchiectomy; Ovariectomy; Postoperative Complications; Prospective Studies; Records; Retrospective Studies
PubMed: 32216041
DOI: 10.1111/vop.12760 -
British Medical Journal Jul 1949
Topics: Castration; Humans; Male; Orchiectomy
PubMed: 18132429
DOI: 10.1136/bmj.2.4618.59 -
Journal of Animal Science Jun 2022Biological sex is a major host factor influencing risk for infectious disease-associated mortality, and chronic inflammatory and metabolic diseases. Research in human... (Review)
Review
Biological sex is a major host factor influencing risk for infectious disease-associated mortality, and chronic inflammatory and metabolic diseases. Research in human and rodent models -has revealed sex differences that exist across organ systems during health and disease that may contribute to sex biases in disease risk. Despite the robust and growing literature on the role of sex as a risk factor in human disease, comparatively little attention has been focused on investigating the role of biological sex in disease susceptibility in agriculturally important animal populations such as the pig. To date, comparisons between sexes have focused on carcass composition, growth rate, and feed efficiency in pigs. However, there is a large gap in the literature regarding the effects of biological sex on other integral aspects of health and disease. The objective of this review is to highlight the available literature reporting sex differences in pig health and biology with an emphasis on sex differences in mortality, immunity, and gastrointestinal (GI) physiology and to address biological sex as a significant biological variable in disease risk and research study design. A basic overview of the biology of sex differences including the major hormonal and genetic/chromosomal mechanisms of sexual differentiation and the developmental periods in which sex differences emerge will be covered. This review will also discuss how production-relevant management and environmental factors (e.g., wean age, castration, stress, and nutrition) interact with biological sex to shape host immune and GI development and function. Perceived gaps in knowledge and areas of future research will also be discussed.
Topics: Animals; Disease Susceptibility; Female; Male; Orchiectomy; Research Design; Risk Factors; Sex Characteristics; Sex Factors; Swine; Swine Diseases
PubMed: 35708590
DOI: 10.1093/jas/skac146 -
Clinical Genitourinary Cancer Apr 2020Androgen deprivation therapy (ADT) is the gold standard for metastatic prostate cancer, which can be achieved either by surgical or medical castration. In this study, we... (Comparative Study)
Comparative Study
BACKGROUND
Androgen deprivation therapy (ADT) is the gold standard for metastatic prostate cancer, which can be achieved either by surgical or medical castration. In this study, we evaluated the trends of utilization of surgical castration and also assess the survival differences of patients who underwent surgical castration when compared with those who underwent medical castration.
MATERIALS AND METHODS
The National Cancer Database was used to identify patients with metastatic prostate cancer from 2004 to 2014. Cochran-Armitage tests were used to assess temporal trends in the proportion of patients receiving surgical castration relative to medical castration. Logistic and Cox regression models were utilized to estimate the odds of utilization of surgical castration and the effect of castration on overall survival (OS).
RESULTS
A total of 33,585 patients with metastatic prostate cancer were identified; 31,600 (94.1%) had medical castration, and 1985 (5.9%) underwent surgical castration. There was significant decline in the trend of utilization of surgical castration from 8.6% in 2004 to 3.1% in 2014. On multivariable analysis, being of a non-Caucasian race, having lower median income levels, having non-private insurance, and earlier years of diagnosis were found to be associated with increased odds of choosing surgical castration over medical castration. Notably, the odds of surgical castration were lower at academic centers. On univariable analysis, a survival difference between castration modality was evidenced (P < .01); 5-year OS for medical castration and surgical castration were 24.3% and 18.2%, respectively. However, on multivariable analysis, there was no OS difference between surgical castration and medical castration (P = .13).
CONCLUSIONS
In this large contemporary analysis, the utilization of surgical castration has declined over time, with no OS difference when compared with medical castration. Increasing the utilization of surgical castration could help reduce health care expenditures. With rising health care costs, patients and physicians need to be aware of treatment options and their financial implications.
Topics: Aged; Androgen Antagonists; Antineoplastic Agents, Hormonal; Databases, Factual; Health Care Costs; Humans; Male; Middle Aged; Multivariate Analysis; Orchiectomy; Prostatic Neoplasms, Castration-Resistant; Retrospective Studies; Socioeconomic Factors; Survival Analysis; Treatment Outcome; United States
PubMed: 31956009
DOI: 10.1016/j.clgc.2019.09.020 -
BMC Veterinary Research Mar 2021The intramuscular injection of ketamine and azaperone was proposed as a suitable anaesthesia for male suckling piglets for surgical castration. However, this can be...
BACKGROUND
The intramuscular injection of ketamine and azaperone was proposed as a suitable anaesthesia for male suckling piglets for surgical castration. However, this can be opposed by massive defensive movements, hypothermia and tachycardia during castration and a long recovery period. The aim of the present study was to test whether the use of S-ketamine and/or a change in the route of application from intramuscular to intranasal could reduce stress responses and the duration of recovery compared to the intramuscular route and the use of racemic ketamine. Seventy-eight healthy, five-day-old male piglets were randomized to six treatment groups in a blinded experimental study, matched by litter and weight. Experimental groups were A (15 mg kg-1 S-ketamine + 2 mg kg-1 azaperone, i.m., surgical castration), B (15 mg kg-1 R/S-ketamine racemate + 2 mg kg-1 azaperone, i.m., surgical castration), C (30 mg kg-1 S-ketamine + 2 mg kg-1 azaperone, i.n., surgical castration), D (15 mg kg-1 R/S-ketamine racemate + 2 mg kg-1 azaperone, i.m.; not castrated), E (positive control group; no anesthesia, surgical castration) and F (negative control group; no anesthesia, not castrated).
RESULTS
S-ketamine reduced the defensive movement score during castration to a similar extent to racemic ketamine when administered intramuscularly but not via the intranasal route. However, the effects of S-ketamine (both routes) on the increase in cortisol levels and decrease in body temperature were similar to those induced by racemic ketamine. A reduction of the long recovery time known for ketamine-azaperone anaesthesia could not be achieved with S-ketamine in the given dosage, regardless of the route of application. The intranasal administration of ketamine was difficult with the available formulation as the necessary amount exceeded the capacity of the nose cavity.
CONCLUSIONS
Neither the use of S-ketamine nor intranasal administration can be suitable alternatives for the anaesthesia of male suckling piglets for castration.
Topics: Administration, Intranasal; Anesthesia; Anesthetics, Dissociative; Animals; Animals, Newborn; Injections, Intramuscular; Ketamine; Male; Orchiectomy; Single-Blind Method; Swine
PubMed: 33726749
DOI: 10.1186/s12917-021-02826-9 -
Journal of Veterinary Pharmacology and... Sep 2022This study performed population-pharmacokinetic/pharmacodynamic (pop-PK/PD) modeling of ketoprofen and flunixin in piglets undergoing routine castration and...
This study performed population-pharmacokinetic/pharmacodynamic (pop-PK/PD) modeling of ketoprofen and flunixin in piglets undergoing routine castration and tail-docking, utilizing previously published data. Six-day-old male piglets (8/group) received either ketoprofen (3.0 mg/kg) or flunixin (2.2 mg/kg) intramuscularly. Two hours post-dose, piglets were castrated and tail docked. Inhibitory indirect response models were developed utilizing plasma cortisol or interstitial fluid prostaglandin E2 (PGE2) concentration data. Plasma IC50 for ketoprofen utilizing PGE2 as a biomarker was 1.2 μg/ml, and ED50 for was 5.83 mg/kg. The ED50 calculated using cortisol was 4.36 mg/kg; however, the IC50 was high, at 2.56 μg/ml. A large degree of inter-individual variability (124.08%) was also associated with the cortisol IC50 following ketoprofen administration. IC50 for flunixin utilizing cortisol as a biomarker was 0.06 μg/ml, and ED50 was 0.51 mg/kg. The results show that the currently marketed doses of ketoprofen (3.0 mg/kg) and flunixin (2.2 mg/kg) correspond to drug responses of 33.97% (ketoprofen-PGE2), 40.75% (ketoprofen-cortisol), and 81.05% (flunixin-cortisol) of the maximal possible responses. Given this information, flunixin may be the best NSAID to use in mitigating castration and tail-docking pain at the current label dose.
Topics: Animals; Anti-Inflammatory Agents, Non-Steroidal; Clonixin; Dinoprostone; Hydrocortisone; Ketoprofen; Male; Orchiectomy; Pain; Swine; Tail
PubMed: 35833463
DOI: 10.1111/jvp.13083 -
Andrology Jul 2022Peter Abelard (1079-1142) is still considered one of the giants of philosophy, theology, and psychology, and the unsurpassed master of dialectical debate. Born in Le...
Peter Abelard (1079-1142) is still considered one of the giants of philosophy, theology, and psychology, and the unsurpassed master of dialectical debate. Born in Le Pallet, near Nantes, Abelard became an academic and wandering cleric of great fame, founder of several schools that attracted students from all countries, arousing the admiration of his contemporaries and the profound envy of his colleagues. Around 1115, Abelard became master of the school of the Cathedral of Notre-Dame. Shortly after, the canon Fulbert asked him to take his niece, the equally famous and highly cultured Héloïse d'Argenteuil (1092-1164), as a pupil. Thus a relationship began, celebrated for centuries to come, characterized by burning sexual and intellectual passion, by the famous correspondence, which will be the archetype of sentimental education and the template of romantic love letters, bythe birth of a son and consequent marriage, and by the cowardly revenge of Fulbert, who, together with a band of servants, mutilated "those parts of my body with which I had done what was the cause of their pain," as Abelard wrote. While this unclear self-description has suggested to contemporaries and to posterity that Abelard was castrated, we aim to question this belief by analyzing in-depth this historical-andrological clinical case to understand if there is any evidence that could suggest that Abelard was instead the victim of an even more brutal punishment: penectomy. Signs and symptoms gleaned from the personal writings and historical perspectives of Abelard and his time are used here to provide a possible answer to a thousand-year-old question: what makes a man … a man?
Topics: Andrology; Humans; Male; Orchiectomy; Penis
PubMed: 35355434
DOI: 10.1111/andr.13180