"Cat and dog bite injuries of the hand: early versus late treatment"

Role of prophylactic antibiotics in treating patients presenting to emergency care with dog bites

Dog bites account for 250,000 attendances for urgent and emergency care each year. They pose risks including infections with potentially life-threatening complications. This article scrutinises the evidence underpinning the use of prophylactic antibiotics in dog bite wounds. A focused literature review involving four databases specialising in peer-reviewed healthcare literature was conducted to identify the highest quality evidence, which was then systematically appraised. The use of antibiotics in treating dog bite wounds to reduce the risk of infection is largely supported by the evidence. However, significant limitations exist in the research, with patient-specific criteria for administering prophylactic antibiotics and the associated risks and financial costs not addressed. Further research into antibiotic treatment for dog bites would help to support clinicians, nurse practitioners and the wider nursing and allied health professional team in urgent and emergency care by informing safe practice and in turn improving patient care, cost-effectiveness and antimicrobial stewardship.

Cat bite injuries to the hand and forearm: the impact of antibiotic treatment on microbiological findings and clinical outcome

INTRODUCTION

Patients and physicians often underestimate cat bite injuries. The deep and narrow wound seals quickly and provides an environment for the inoculated saliva and bacteria. Interestingly, the literature reports no bacterial growth in the microbiological workup of wound swaps in up to 43%. The time between bite injury and the first clinical presentation, the start of antibiotic treatment and surgical debridement might affect these findings. Therefore, the current project examines if (1) these factors impact the outcome of microbiological results following cat bite injuries and (2) the detection of bacterial growth leads to higher complication rates, longer hospital stays, longer total treatment time, or higher total treatment costs.

MATERIALS AND METHODS

This single-center retrospective study analyzed data from 102 adult patients. All patients received antibiotic and surgical treatment following a cat bite injury. Microbiological samples were collected during surgery in all cases. The time from the bite incident to the first presentation, beginning of antibiotic administration, and surgical debridement was calculated. Demographic data, complication rate, length of hospital stay, total treatment time, and total treatment costs were recorded. (1) A generalized linear model was fitted using the microbiological outcome as the dependent variable. (2) Two groups (negative or positive microbiological results) were formed and statistically compared.

RESULTS

The median age was 50 (SD 16), and 72% were female. (1) The time from the bite incident to the first clinical presentation, antibiotic administration, or surgical treatment was not associated with the outcome of the microbiological result. (2) No significant differences were observed between the two groups.

CONCLUSIONS

Our data do not suggest that early antibiotic administration or delayed surgical treatment affects the outcome of the microbiological workup following cat bite injuries to the hand and forearm. The microbiological outcome did not affect the complication rate, treatment time, and total treatment costs.

Antibiotic treatment of hand wounds in children: Contribution of a decision tree

BACKGROUND

The need for prophylactic antibiotic treatment of hand wounds in children requiring emergency surgical exploration is still controversial. Our starting hypothesis was that the absence of prophylactic antibiotic treatment in this setting (as specified by a decision tree) does not increase the likelihood of surgical site infection.

METHODS

A decision tree for antibiotic prescription was developed by a working group in compliance with the guidelines issued by the French High Authority for Health, as part of a clinical pathway. One injection of intravenous antibiotics was prescribed for bite injuries, open joint injuries, injuries left untreated for more than 24 h, and suspected contaminated wounds. All children admitted for surgical treatment of a hand wound between July 2018 and March 2023 were included. Demographic data, antibiotic prescription and onset of postoperative surgical site infection were recorded.

RESULTS

The 238 children included had a mean age of 8 ± 4.8 years; 102 received antibiotics and 136 did not. Eleven children (4.6%) had superficial surgical site infection requiring no revision surgery or antibiotic therapy. 206 children (86.5%) were treated following the decision tree. Ten had superficial surgical site infection: 3 received antibiotics (3.7% of the 80 who were treated) and 7 did not (5.5% of the 126 not treated) (p = 0.74). Thirty-two patients (13.5%) were off-protocol, only 1 of whom received antibiotics for superficial surgical site infection.

DISCUSSION

Applying the decision tree standardized the prescription of antibiotics in hand wounds, was not associated with a significantly greater rate of surgical site infection, and avoided exposure to antibiotics for 61.1% of the children, thus limiting potential adverse events.

LEVEL OF EVIDENCE

III.

Minor Skin Injuries at School: The Role of the School Nurse

School nurses routinely provide simple wound care for minor injuries in the school health office. Simple wound care is centered on the principles of moist wound care and only requires a few supplies to be on hand. This article outlines the steps for simple wound care for minor abrasions, cuts, blisters, and burns. Recommendations for referral of more complicated wounds are also provided. Student encounters for minor wound care can also be used by school nurses to provide education on first aid and to teach students, parents, and caregivers about infection prevention and control of the wound.

[Bite Injuries - Diagnosis and Treatment]

Bite Injuries - Diagnosis and Treatment Abstract. In Switzerland 50% of the people get bitten by an animal once in their lifetime. Almost 20% of all bite injuries lead to infections. All bite wounds should be debrided and irrigated with saline. Primary wound management is critical in terms of reducing the risk of infection. Injuries to the hands and face should be treated by a hand or plastic surgeon.

Bite injuries to the hand and forearm: analysis of hospital stay, treatment and costs

We retrospectively reviewed the charts of patients treated for bite injuries in our clinic from 2014 to 2019. The time from the bite event to surgery, duration of hospital stay, duration of antibiotic treatment, complications, incapacity for work and costs were analysed. Cat bites were compared with the other bite injuries and were found to be more problematic. The results of early (within 24 hours) and delayed treatment in cat bite injuries were compared. Treated early they were associated with a shorter hospital stay (1.4 versus 2.4 days), shorter duration of antibiotic treatment (9.7 versus 12.6 days), lower complication rate (10% versus 18%), lower cost (CHF4606 versus 8072) (£4061 versus £7116; US$4771 versus US$8361; €4788 versus €8390) and a shorter incapacity for work (15 versus 43 days). Surgical treatment must be carried out as early as possible. The public and physicians require education to reduce the frequency of these injuries and the associated costs.Level of evidence: IV.

[The Emergency Classification of Hand Injuries: Analyzing Urgency Assessment among German Hand Surgeons]

BACKGROUND

Emergency capacities in the operating theatre are limited and often need to be split among surgical departments. Hand injuries often have to compete with other surgical disciplines for the availability of operating capacity. For this reason, an emergency classification was introduced to define a timespan in which the injury should be taken care of in the OR in order to enable the prioritizing of emergency cases in an interdisciplinary approach when capacities are scarce. However, neither valid data nor specific recommendations concerning the medical urgency of treatment or the forensic background of different hand injuries exist to this date.

PURPOSE

This work describes how emergency classifications in Germany are applied to hand surgical cases and how certain hand injuries are prioritized among different hand surgeons.

MATERIAL AND METHODS

An online survey was sent to all members of the German Society for Hand Surgery twice during a time span of several months. The survey featured questions on size and type of clinic or practice and requested an assessment of urgency levels for various hand injuries (immediately - within 2 h - within 6 h - within 12 h - within 24 h or elective care). The analysis of the questionnaire and graphic presentation was carried out using Excel.

RESULTS

172 (25 %) out of 700 active members filled in the survey. Among the participants were members of university clinics, hospitals run by the German Statutory Accident Insurance, specialized clinics and primary care clinics. 15 % of participants work in a practice that offers hand-surgical treatment. First and foremost, maximum care hospitals with a hand surgical department participate in the treatment of hand injuries. 64 % of the hospitals use an emergency classification to enable the interdisciplinary prioritizing of surgical emergencies. The categorization of limb-threatening hand injuries appears to be very homogenous among participants whereas non-threatening injuries are assessed rather inconsistently.

CONCLUSION

Emergency treatment of hand injuries primarily depends on available resources and surgical capacities. The assessment of urgency and severity of injuries additionally depends on experience and education. In order to maintain the ability to compete with other surgical disciplines for surgical capacities, a standard classification of hand surgical urgencies needs to be established. As valid data on the treatment of hand injuries are still missing, further studies need to evaluate possible outcomes in order to define the timespan in which surgery should take place.