Tetanus caused by human bite of the finger

Facial human bites. Vision on STMMs in Africa

<b>Objectives:</b> Human bites of the face are a frequent and serious health issue as they often compromise patients function and aesthetics as well as lead to further complications. The aim of the study is to review human bites of the face referred to our team during 112 short-term medical missions (STMMs) in Sub-Saharan Africa over the past 20 years and to discuss the epidemiology, appearance, management and outcome, including the most common complications. <br><b>Methods:</b> A retrospective medical documentation review was carried out examining all human bites of the face operated by our team during 112 STMMs from 2000 to 2019 in different countries of Sub-Saharan Africa. <br><b>Results:</b> Out of about 5500 patients medical charts 51 patients were selected due to history of human bite. Patients' age range was 15-65 years, female to male ratio was 1, 55:1, the most often involved parts were: lips, ear and nose. Various surgical procedures were carried out including local flaps and free grafts. Infection and graft necrosis were the most common reported complication (n = 4; 9.3%). <br><b>Conclusion:</b> Human bites injuries are a serious health problem in some African populations because of their frequency and possible severity. The treatment is particularly challenging due to their potential to cause local infections, the risk they pose for transmission of systemic diseases as well as their demanding surgical management.

Tetanus following replantation of an amputated finger: a case report

Introduction

Tetanus is an infectious disease caused by tetanus toxin produced by Clostridium tetani and induces severe neurological manifestations. We treated a patient who developed tetanus during hospitalization for replantation of an amputated finger. To the best of our knowledge, this is the first published case report of such an entity.

Case presentation

A 49-year-old Japanese man had an amputation of his right middle finger at the distal interphalangeal joint region in an accident at work. His middle finger was successfully replanted, but his fingertip was partially necrotized because of crushing and so additional reconstruction with a reverse digital arterial flap was performed 15 days after the injury. Tetanus developed 21 days after replantation of the middle finger, but symptoms remitted via rapid diagnosis and treatment.

Conclusions

In replantation after finger trauma with exposure of nerve and blood vessel bundles, concern over injuring nerves and blood vessels may prevent irrigation and debridement from being performed sufficiently; these treatments may have been insufficiently performed in this patient. It is likely that the replanted middle finger partially adhered, and Clostridium tetani colonized the partially necrotized region. Even when there is only limited soil contamination, administration of tetanus toxoid and anti-tetanus immunoglobulin is necessary when the fingers are injured outdoors and the finger nerves and blood vessels are exposed. The drugs should be administered just after replantation if the finger has been amputated. However, if clinicians pay attention to the possibility of tetanus development, treatment can be rapidly initiated.

Managing human bites

Human bites are frequently overlooked in making a diagnosis in the emergency room. They are particularly notorious due to the polymicrobial nature of human saliva inoculated in the wound and the risk they pose for transmission of infectious diseases. Early treatment, appropriate prophylaxis and surgical evaluation are the key to achieving desired treatment outcomes. Through this article, we have tried to summarize the diagnostic features, complications as well as the recommended treatment alternatives for human bites based on the current available evidence.

A 4-year review of human bite injuries presenting to emergency medicine and proposed evidence-based guidelines

Human bite injuries are a common injury, roughly accounting for around 0.1% of attendances to Emergency Medicine departments. Morbidities associated with such injuries are legion. Of paramount importance is the potential for infection of the wound site, both bacterial and viral. A retrospective 4-year review of 3136 case notes was conducted, identifying 421 human bites. This amounts to one every 3 days! The majority of those bitten were young males (male:female ratio=3:1; 44% comprising the age group 16-25 years). The management of these wounds was found to be poor. 17% of patients did not receive any antibiotic cover; 21% of patients either did not have tetanus prophylaxis administered when required or had a tetanus booster when they were already covered; 34% of patients either did not receive a hepatitis B booster when one was required or received one when they were already covered. This lack of effective documentation, along with errors in addressing prophylaxis of the infective agents, may have profound medico-legal consequences. The author believes that the findings will be reproduced in other centres and in view of the inadequacies highlighted by this work, it is necessary to introduce an evidence-based protocol for the comprehensive management of the human bite. Using United Kingdom Department of Health evidence-based guidelines, the author proposes such a pathway.

Hospital management of animal and human bites

The management of bites severe enough to warrant hospital admission is complex. This review includes the epidemiology, clinical management, investigations, microbiology and role of antimicrobials for all types of animal and human bites likely to be encountered in UK hospitals.

A study of primary closure of human bite injuries to the face

PURPOSE

This study evaluated the management of human bite injuries to the face during the period from May 1995 to April 1996.

PATIENTS AND METHODS

Data on 30 patients presenting with human bite injuries during this period were collected on specially designed forms. The information was pooled and analyzed. A standardized surgical treatment consisting of thorough debridement of the wound followed by primary closure either by direct suturing, a local flap, or skin grafting on the day of presentation was used. Most of the cases were treated under local anesthesia. Patients were prescribed tetanus prophylaxis and a course of antibiotics for 1 week. Suture removal was done 1 week postoperatively except for the skin grafts, which were uncovered at 10 days postoperation.

RESULTS

There were 21 males and 9 females ranging in age between 17 and 55 years, with a mean age of 31.8 years. Sixty-six percent of the bites involved the lips. The duration of injury before presentation ranged from 1 to 4 days. In 27 of the cases (90%), wound healing was complete at the time of suture removal.

CONCLUSION

The results indicate that immediate closure of human bite injuries is safe, even with old injuries.

Osteomyelitis of the skull vault from a human bite

We report a case of extensive osteomyelitis of the skull vault from a human bite. The presentation and surgical management of this unusual condition is described. The microbiological findings are comparable to known patterns of infection after human bites. Surgical management and prophylaxis after this injury are discussed.