Subphrenic and mediastinal abscess formation: a complication of Ludwig's angina

Ludwig's Angina: Report of a Case and Review of Management Issues

Ludwig's angina, although uncommon, remains a potentially life-threatening condition because of the risk of impending airway obstruction. Effective treatment is based on early recognition of the clinical process, with the appropriate use of parenteral antibiotics, airway protection techniques, and formal surgical drainage of the infection. We present a case of Ludwig's angina together with a brief review of the relevant literature.

Descending necrotizing mediastinitis: a modified algorithmic approach to define a new standard of care

BACKGROUND

Descending necrotizing mediastinitis (DNM) is a highly morbid infectious process. This uncommon disease process has carried historically a substantial burden of morbidity and mortality. In this study we hypothesized that application of a prospective modified management algorithm would decrease the morbidity and mortality from this highly destructive process.

METHODS

We developed a systematic approach for managing DNM, focusing on serial debridement guided by imaging, in conjunction with the use of broad-spectrum antibiotics and modern principles of critical care. We reviewed all patients admitted with this disease process from 2007-2012. Data collected included demographic information, co-morbidities, laboratory data including culture results, operative details, imaging frequency and findings, complications, and survival. Continuous variables were reported as median values and ranges.

RESULTS

From 2007-2010, we treated eight patients with DNM. The median age of the patients was 33 y (range 28-63 y), and 63% were male. In accordance with our algorithm, the patients underwent serial imaging at regular intervals following operative debridement. The median number of imaging studies was 11 (range 4-19). The patients required a median of five operative debridements (range 1-15). In five patients, drainage was necessary through a cervical exploration. A thoracic approach was required in six patients (two thoracoscopic, four via thoracotomy). Additional procedures included thymectomy (n=2), anterior mediastinotomy, carotid sheath exploration and resections of the clavicle, first rib, manubrium, pectoralis major muscle, and sternocleidomastoid muscle. The most common etiologic agents were Peptostreptococcus spp. and Streptococcus anginosus. Study patients received a median of six different antibiotics (range 2-10) for a total of 42 d (range 34-55 d). These patients were hospitalized for a median of 29 days (range 16-56 d), with 15 d (range 7-48 d) spent in the intensive care unit. Remarkably, the rate of survival was 100% (median follow-up of 33 mo). The patients developed no major complications, required no re-admissions, and had no re-infections.

CONCLUSIONS

We applied an algorithmic approach to the treatment of DNM, consisting of aggressive operative debridement and enhanced by equally aggressive imaging. Our patients had excellent outcomes despite the widely known lethality of DNM. An aggressive approach may decrease complications and improve survival in this devastating disease process. Furthermore, our prospective experience with DNM suggests that this algorithm used in the present study should be the standard for managing patients with this challenging condition.

Ludwig's Angina in Post Partum Patient

Ludwig's Angina is a rapid progressive cellulitis of the submandibular spaces, with potential for significant upper airway obstruction. Most reported cases follow an odontogenic infection. We present a case of 22-year-old female patient in her 2 weeks post partum period developing a life threatening infection. Immediate intubation, surgical decompression and antibiotic therapy successfully resolved the episode.

The Sepsis Syndrome in Odontogenic Infection

Odontogenic infection is a common cause of sepsis in the head and neck. Infection frequently spreads in a predictable pattern within the fascial spaces of the neck and can result in airway compromise. Often the condition results in significant morbidity and a prolonged hospital stay. In this study, we assessed the incidence of sepsis syndrome in patients presenting to a regional maxillofacial unit with odontogenic infection. Six months of prospective data were collected, with sixty-seven patients included. The focus of infection was mandibular in 70.1% and maxillary in 29.9%. The mean length of stay was four days and 61.2% of patients were diagnosed with sepsis syndrome on admission. This group remained in hospital significantly longer than non-sepsis syndrome patients (sepsis=4.7 days, non-sepsis=2.9 days. p=0.0145.) The site of infection was not a significant factor in the development of the systemic inflammatory response syndrome (SIRS).

Descending necrotising mediastinitis: a safe treatment algorithm

Descending necrotising mediastinitis can complicate oropharyngeal infection and has a high associated mortality. We present three cases treated in our department and propose a treatment algorithm based on our experience and literature review. The primary oropharyngeal infection was peritonsillar abscess in two cases and odontogenic abscess in one. Two patients underwent cervicotomy and later thoracotomy. The third underwent cervicotomy with transcervical mediastinal drainage and later required pericardial drainage via a subxiphoid incision. All recovered fully and were discharged within 6 weeks. To enable successful treatment, diagnosis needs to be prompt and surgical drainage adequate. Thoracic management of the chest is essential.

Potentially Life-Threatening Neck Abscesses: Therapeutic Management Under CT-Guided Drainage

PURPOSE

To evaluate the effectiveness of CT-guided drainage of potentially life-threatening neck abscesses.

METHODS

Between September 2001 and December 2003, 15 patients presented to the emergency room with potentially life-threatening neck abscesses. Their clinical condition was critical due to the abscess size (larger than 3 cm in diameter; mean diameter 5.2 cm, SD 0.91 cm) and/or abscess location. A CT scan was carried out immediately to assess the lesion. At the same time, under CT guidance, an 8 Fr trocar-type pigtail catheter was inserted, in order to drain the abscess. The decision to drain percutaneously was based on a consensus between the surgical, infectious disease and radiology teams . The catheter was kept in place until drainage stopped, and a follow-up scan was performed.

RESULTS

In 14 (93%) patients, the abscess was completely drained, and in 1 (7%) case the collection was still present because of multiple internal septation. That patient was treated by surgical management. The catheter was in place for a mean of 3 days (SD 0.96 day).

CONCLUSION

Despite the fact that the number of our patients is small, CT-guided percutaneous drainage seems to be a fast, safe and highly effective low-cost method for the treatment of potentially life-threatening neck abscesses.

CT and MR imaging evaluation of neck infections with clinical correlations

Infection of the neck is a common clinical problem in all age groups, especially children and young adults. The clinical symptoms and signs are often suggestive of the diagnosis. Imaging studies including CT and MR imaging are frequently required to confirm the diagnosis but more importantly to localize the infectious process and search for and delineate an abscess cavity. Ultrasound has also been used in the evaluation of superficial neck infections, especially to determine fluid accumulation. Conventional films consisting of an anteroposterior and lateral view were the examination before the introduction of CT in 1972. Conventional films can still be used for a preliminary survey, especially of the retropharyngeal space when there is a question of a retropharyngeal phlegmon or abscess.

Descending necrotizing mediastinitis due to odontogenic infections

OBJECTIVE

Acute purulent mediastinitis caused by oropharyngeal infection is termed descending necrotizing mediastinitis. Such infections usually have a fulminate course, leading to sepsis and frequently to death. The purpose of this study is to show the importance of early diagnosis, aggressive surgical intervention, and optimal antibiotics chemotherapy in controlling this fatal infectious disease.

STUDY DESIGN

Two patients with descending necrotizing mediastinitis due to odontogenic infection who were treated at our institution are described.

RESULTS

Both patients survived.

CONCLUSIONS

From the patients, 23 different aerobic and anaerobic bacteria were isolated. All of the isolates were susceptible to carbapenem. Early evaluation by means of cervicothoracic computed tomography scanning was extremely useful for diagnosis and surgical planning. Knowledge of anatomic pathways from the mouth to the mediastinum is essential. We believe that tracheostomy is not always necessary. In both of the cases presented, mediastinal drainage was completed through use of a transcervical approach. However, a more aggressive drainage including tracheostomy might be necessary when the infection extends below the carina.

[Descending necrotizing mediastinitis. A case report]

Descending necrotizing mediastinitis which may occur as a complication of neglected oropharynx infection is an uncommon disease, although it is lethal in most cases. Trismus and dyspnea are usual with palpable crepitation located in the cervico-thoracic area. Early diagnosis can be confirmed with accuracy by CT scan. Treatment is based on early mediastinal drainage by cervical approach, intravenous antibiotics and reanimation. The reported case had a favorable outcome.

Descending cervical mediastinitis

Descending cervical mediastinitis is an uncommonly reported presentation of infection originating in the head or neck and descending into the mediastinum, which is fraught with impressive morbidity and mortality rates of 30% to 40% or more. We present the INOVA-Fairfax-Alexandria Hospital experience with descending cervical mediastinitis, January 1, 1986, to April 1, 1997; in addition we review the English-language medical and surgical literature with regard to this entity. Computed tomography and magnetic resonance imaging serve to aid both diagnosis and management. The application of broad-spectrum antibiotics should initially be empiric, with an eye to coverage of mixed aerobic and anaerobic infections. Definitive treatment mandates early and aggressive surgical intervention. All affected tissue planes, cervical and mediastinal, must be widely debrided, often leaving them open for frequent packing and irrigation. The treating physician must remain always alert to the further extension of infection, which, if it occurs, must be further debrided and drained. Tracheostomy serves a dual role of further opening cervical fascial planes and securing an often compromised airway.

Optimal treatment of descending necrotising mediastinitis

BACKGROUND

Descending necrotising mediastinitis is caused by downward spread of neck infection and has a high fatality rate of 31%. The seriousness of this infection is caused by the absence of barriers in the contiguous fascial planes of neck and mediastinum.

METHODS

The recent successful treatment of seven adult patients with descending necrotising mediastinitis emphasises the importance of optimal early drainage of both neck and mediastinum and prolonged antibiotic therapy. The case is also presented of a child with descending necrotising mediastinitis, demonstrating the rapidity with which the infection can develop and lead to death. Twenty four case reports and 12 series of adult patients with descending necrotising mediastinitis published since 1970 were reviewed with meta-analysis. In each case of confirmed descending necrotising mediastinitis the method of surgical drainage (cervical, mediastinal, or none) and the survival outcome (discharge home or death) were noted. The chi 2 test of statistical significance was used to detect a difference between cases treated with cervical drainage alone and cases where mediastinal drainage was added.

RESULTS

Cervical drainage alone was often insufficient to control the infection with a fatality rate of 47% compared with 19% when mediastinal drainage was added (p < 0.05).

CONCLUSIONS

Early combined drainage with neck and chest incisions, together with broad spectrum intravenous antibiotics, should be considered standard care for this disease.

Space-occupying and life-threatening infections of the head, neck, and thorax

Infections of the deep structures of the head and neck are polymicrobial, rapidly progressive, and frequently life-threatening. The bacteriology, clinical presentation, and the need for multidisciplinary management of these infections are stressed. In addition, this article discusses selected head and neck infections of immunocompromised hosts and postexposure prophylaxis for serious infections of the pharynx.

Ludwig's angina: case report and review

Modern dental care and use of antibiotics for oral infections have made Ludwig's angina rare. To avoid acute airway obstruction, emergency physicians must be able to rapidly recognize and treat this condition. A typical case of Ludwig's angina is presented, followed by a review of clinical findings and therapeutic modalities. Emphasis is made on airway management, antibiotics, and surgical drainage.

Descending necrotising mediastinitis

Descending necrotising mediastinitis is a rare but serious complication of oropharyngeal infections with high mortality. Diagnosis is frequently delayed, contributing to this high mortality, but awareness of such a complication and early diagnosis using computed tomographic scanning leads to prompt surgical drainage, proper antibiotic therapy, and survival.

An unexpected death associated with an acute dentoalveolar abscess--report of a case

A case which was reported in the national press, is described where a fatality occurred as a result of an acute dentoalveolar abscess, and the subsequent development of septicaemia with Disseminated Intravascular Coagulation (DIC). A review of the English literature shows that there are no reported cases of death associated with acute dentoalveolar infection and DIC.

Mediastinitis and bilateral thoracic empyemas complicating adult epiglottitis

A 32 year old woman developed life threatening mediastinitis and bilateral empyemas as a complication of adult epiglottitis. She recovered completely.

Ludwig's angina: report of seven cases and review of current concepts in management

Ludwig's angina is a rare type of facial infection, which formerly invariably was fatal, but now, with adequate surgical and antibiotic treatment, has a much reduced mortality. Seven cases, two of which were fatal, were managed at the University of Benin Dental Hospital, Nigeria between 1981 and 1986. In five cases large doses of antibiotics, incision and drainage and extraction of involved teeth, proved to be effective therapy without the need for tracheostomy. In the two fatal cases, death was associated with inadequate antibiotic therapy.

Descending necrotizing mediastinitis: transcervical drainage is not enough

One of the most lethal forms of mediastinitis is descending necrotizing mediastinitis, in which infection arising from the oropharynx spreads to the mediastinum. Two recently treated patients are reported, and the English-language literature on this disease is reviewed from 1960 to the present. Despite the development of computed tomographic scanning to aid in the early diagnosis of mediastinitis, the mortality for descending necrotizing mediastinitis has not changed over the past 30 years, in large part because of continued dependence on transcervical mediastinal drainage. Although transcervical drainage is usually effective in the treatment of acute mediastinitis due to a cervical esophageal perforation, this approach in the patient with descending necrotizing mediastinitis fails to provide adequate drainage and predisposes to sepsis and a poor outcome. In addition to cervical drainage, aggressive, early mediastinal exploration--debridement and drainage through a subxiphoid incision or thoracotomy--is advocated to salvage the patient with descending necrotizing mediastinitis.

Mediastinitis and pericarditis caused by dental infection

A case of dental infection with spread to the mediastinum causing pericarditis and cardiac tamponade is described. The clinical course of the disease, the investigations undertaken and the treatment given are outlined.

Ludwig's angina: an unusual sequel to endodontic therapy

Ludwig's angina is an unusual sequel to endodontic treatment: such a case is described. Principles of management are discussed with emphasis placed on the need to secure the airway early. The literature is reviewed.

Necrotising fasciitis caused by dental infection

A case of necrotising fasciitis caused by dental infection is presented, which resulted in severe mutilation but the patient survived. The diagnosis and management of this condition is discussed.

An unusual parotid foreign body presenting as recurrent trismus

A case is reported of a foreign body in the left parotid gland, which presented in an unusual manner following a trivial injury and posed a difficult diagnostic problem, trismus being the most prominent clinical feature. The importance of having a high index of suspicion for retained foreign bodies is stressed.