Ludwig's Angina: Higher Incidence and Worse Outcomes Associated With the Onset of the Coronavirus Disease 2019 Pandemic.

Background: Ludwig's angina (LA) is a diffuse cellulitis of the submandibular space and adjacent tissues. During the coronavirus disease 2019 (COVID-19) pandemic, odontogenic treatments were often delayed because of the implementation of safety measures to avoid the spread of the virus. We hypothesized that delayed odontogenic treatments associated with the onset of the COVID-19 pandemic would be associated with an increase in the incidence of LA and worse outcomes related to these infections. Patients and Methods: Patients from June 2018 to June 2022 with computed tomography images suggestive of LA and confirmed by ear, nose, throat (ENT) consult were included. We abstracted demographics, outcomes, clinical management, and microbiology. Patients were stratified into pre-COVID and COVID-onset. Our primary outcome, incidence of LA, was defined as: (new LA cases) ÷ (ED evaluations of oral or dental infections × 1.5 years). Results: In the pre-COVID group, we identified 32 of 1,301 patients with LA for an incidence of 0.02 per year. The COVID-onset group consisted of 41 of 641 patients, with an incidence of 0.04 per year. In the COVID-onset group, progression to necrotizing fasciitis was more likely (0% vs. 15%; p < 0.024), and they returned to the operating room for repeated debridement (3% vs. 22%; p < 0.020). Likewise, hospital length of stay, intensive care unit (ICU) length of stay, and ventilator days were higher (4.3 ± 3.5 vs. 9.5 ± 11.3; 1.1 ± 1.2 vs. 9.5 ± 7.1; 0.3 ± 1 vs. 3.6 ± 7.1; p < 0.001). Conclusions: Although the prognosis for dental infections diagnosed early is generally favorable, we observed a notable increase in the incidence of LA after the onset of the COVID-19 pandemic. Moreover, complications stemming from these infections became more severe in the COVID-onset era. Specifically, the likelihood of necrotizing fasciitis showed a substantial increase, accompanied by an increased risk of respiratory failure and mediastinitis.

Diagnosis and management of Ludwig's angina: An evidence-based review.

BACKGROUND: Ludwig's angina is a potentially deadly condition that must not be missed in the emergency department (ED). OBJECTIVE: The purpose of this narrative review article is to provide a summary of the epidemiology, pathophysiology, diagnosis, and management of Ludwig's angina with a focus on emergency clinicians. DISCUSSION: Ludwig's angina is a rapidly spreading infection that involves the floor of the mouth. It occurs more commonly in those with poor dentition or immunosuppression. Patients may have a woody or indurated floor of the mouth with submandibular swelling. Trismus is a late finding. Computed tomography of the neck soft tissue with contrast is preferred if the patient is able to safely leave the ED and can tolerate lying supine. Point-of-care ultrasound can be a useful adjunct, particularly in those who cannot tolerate lying supine. Due to the threat of rapid airway compromise, emergent consultation to anesthesia and otolaryngology, if available, may be helpful if a definitive airway is required. The first line approach for airway intervention in the ED is flexible intubating endoscopy with preparation for a surgical airway. Broad spectrum antibiotics and surgical source control are keys in treating the infection. These patients should then be admitted to the intensive care unit for close airway observation. CONCLUSION: Ludwig's angina is a life-threatening condition that all emergency clinicians need to consider. It is important for clinicians to be aware of the current evidence regarding the diagnosis, management, and disposition of these patients.

Severe odontogenic infections: a 5-year review of a major referral hospital in Ghana.

INTRODUCTION: Odontogenic infections are fairly common in healthcare settings. However, late presentations such as Ludwig's angina, facial cellulitis, necrotizing cervical fasciitis (NCF), among others could lead to mortality. In view of suggestions that the occurrence of severe, near-fatal odontogenic infections is declining, this study set out to determine the incidence of such severe odontogenic infections over the past 5 years at the Korle-Bu Teaching Hospital, a major referral centre in Ghana. METHODS: A retrospective review was done, involving all patients with severe odontogenic infection, thereby requiring admission, per stated criteria at the Department of Oral and Maxillofacial Surgery (Dental clinic), Korle-Bu Teaching Hospital, in the period between July 2012 and July 2017. The cumulative incidence for the respective years were then computed for the years of review. RESULTS: A total of 243 patients were included in the study. This consisted of 121 males and 122 females, with an average age of 42.9 years (SD = 16.6), ranging from 18 months to 91 years. Incidence proportions for the years of the review were 8.2, 8.9, 17.7, 17.9 and 27.7 people per 1000 cases of tooth-related infections for the respective years. With a fatality rate of 5.8%, the incidence of odontogenic infections among patients attending the outpatient Dental clinic of the hospital is 40.3%, while that of dentoalveolar abscess is 6.2%. Ludwig's angina was the commonest (52%) form of presentation of spreading odontogenic infection. CONCLUSION: This study highlights the importance of persisting severe, near-fatal odontogenic infections in Ghana. Not only is there a need to assess the public, professional and institutional strategies to management, but for more evidence-based studies in our local setting to aid in management.

A comparative study of the efficacy of intravenous benzylpenicillin and intravenous augmentin in the empirical management of Ludwig's angina.

Background: Ludwig's angina is a potentially life-threatening condition characterized by bilateral cellulitis of the submandibular, submental, and sublingual spaces. Intravenous (I.V) penicillin G or amoxicillin-clavulanate (Augmentin) has been recommended for use as empirical management before obtaining culture and sensitivity results. Aim: The aim of this study was to compare the therapeutic efficacies and clinical outcomes of I.V benzylpenicillin with I.V Augmentin in the empirical management of Ludwig's angina. Methods: This was a prospective randomized clinical study carried out to measure the rate of swelling reduction (using the lobar rate, Adam's rate, and interincisal distance) and other clinical parameters among the two drug groups (I.V penicillin G and Augmentin). Descriptive summaries of variables were generated, and Student's t-test was used to compare the mean outcomes of the two groups. Results: A total of 26 individuals participated in the study, consisting of 46% (12) males and 54% (14) females. The participants ranged from 13 to 61 years with mean and median of 34.4 (±12.7) and 35 years, respectively. Only 8% of the cases of Ludwig's angina were not attributable to odontogenic factors, compared to 92% resulting from odontogenic causes. There was no significant difference in the efficacy of the two antibiotics used in this study. Conclusion: The efficacies and the clinical outcomes of the two antibiotics were similar. Benzylpenicillin is probably a suitable empirical alternative where Augmentin cannot be afforded, to reduce the mortality associated with the condition.

RésuméContexte: L'angine de Ludwig est une condition potentiellement mortelle caractérisée par la cellulite bilatérale des espaces sousmandibulaires, sousmentaux et souslinguaux. On a recommandé la pénicilline (I.V) intraveineuse G ou l'amoxicilline-clavulanate (Augmentin) pour l'utilisation comme la gestion(direction) empirique avant l'obtention de résultats de sensibilité et la culture. Objectif: Le but de cette étude était de comparer les efficacités thérapeutiques et les résultats cliniques d'I.V benzylpenicillin avec I.V Augmentin dans la gestion(direction) empirique de l'angine de Ludwig. Procédés: C'était une étude clinique randomisée éventuelle a effectué mesurer le taux de réduction se gonflant (utilisant le taux de lobar, le taux d'Adam et la distance interincisal) et d'autres paramètres cliniques parmi les deux groupes de médicament (la pénicilline I.V G et Augmentin). Les résumés descriptifs de variables ont été produits et le t-test de l'Étudiant a été utilisé pour comparer les résultats moyens des deux groupes. Résultats: un total de 26 individus a participé à l'étude, consistant de 46 % (12) mâles et 54 % (14) femelles. Les participants se sont étendus de 13 à 61 ans avec moyen et médian de 34.4 (±12.7) et 35 ans, respectivement. Seulement 8 % des cas(affaires) de l'angine de Ludwig n'étaient pas attribuables aux facteurs odontogenic, comparés à 92 % résultant odontogenic des causes. Il n'y avait aucune différence significative dans l'efficacité des deux antibiotiques utilisés dans cette étude. Conclusion: Il n'y avait aucune différence significative dans les efficacités des deux antibiotiques dans le résultat clinique de traitement. Benzylpenicillin est probablement une alternative empirique appropriée où Augmentin ne peut pas avoir droit, réduire la mortalité associée à la condition.

Epidemiology and resource utilization of ludwig's angina ED visits in the United States 2006-2014.

OBJECTIVES: Ludwig's angina is a potentially lethal submandibular space infection. We aim to describe the epidemiological characteristics of Ludwig's angina patients presenting to the emergency department (ED) and to examine outcomes and resource utilization to determine their burden on ED and hospitals. METHODS: Using the Nationwide Emergency Department Sample database, a nationally representative all-payer database, we retrospectively reviewed all ED visits between 2006 and 2014 for patients admitted with a primary diagnosis of Ludwig's angina (International Classification of Diseases, Ninth Revision, 528.3). We collected information including demographics, ED and inpatient charges, airway interventions, length of stay, and mortality. RESULTS: A total of 5,855 patients met our inclusion criteria. In our study population, the mean age was 44.5 years, with 54% males and 46% females. There were 75% insured and 25% uninsured. Overall median ED charges were $1,352 and median inpatient charges were $18,017.54, with a median length of stay of 3 days. As part of their management, 47.2% of the patients received a surgical drainage procedure, 3.3% required a surgical airway, and 4.6% required a nonsurgical airway. The overall mortality rate was 0.3%. CONCLUSION: Ludwig's angina remains a rare and potentially life-threatening condition. The mortality rate appears to be decreased from previous historical accounts, with airway intervention remaining a significant part of management. LEVEL OF EVIDENCE: 3 Laryngoscope, 129:2041-2044, 2019.

Odontogenic maxillofacial space infections at a tertiary care center in North India: a five-year retrospective study.

OBJECTIVE: Odontogenic infections contribute to a significant proportion of maxillofacial space infections (MSI) across the world. MSI can cause several life-threatening complications despite skillful management. The objective of this study was to review the clinical characteristics, management, and outcome of odontogenic MSI treated at a tertiary care center, and to identify the factors predisposing to life-threatening complications. METHODS: A retrospective chart review of all patients treated for MSI from January 2006 to December 2010 at the Christian Medical College Hospital in Ludhiana, North India, was conducted. RESULTS: Out of 137 patients identified, 66.4% were men. Mean patient age was 40 years, and 24.1% of the patients were diabetic. The most common origin was pulpal (70.8%), the most common space involved was the submandibular space, and the most common teeth responsible were the lower third molars. Twenty patients (14.6%) developed complications. Diabetes, multiple space involvement, and a total leukocyte count of ≥15×10(9)/l were associated with complications. CONCLUSIONS: Patients with MSI who present with multiple space involvement, a high leukocyte count, and those with diabetes are at higher risk of developing life-threatening complications and need to be closely monitored.

Head and neck space infections.

OBJECTIVE: The purpose of this study was to evaluate the incidence, causes, management, and complications of the different head and neck space infections in a Melanesian population. STUDY DESIGN AND SETTING: We conducted a retrospective study in a tertiary referral and teaching hospital. RESULTS: Of the total 103 patients with deep neck space infections (DNSI), odontogenic causes and suppurative lymphadenitis were responsible in 62 (60%) patients. A wide range of DNSI was encountered in our series. Ludwig's angina was the most commonly encountered infection seen in 38 (37%) patients, whereas prevertebral abscess was only seen in 1 (1%) patient. A combination of surgical drainage and medical treatment was the main mode of treatment. Nine (8.7%) patients with DNSI with upper airway obstruction underwent tracheostomy; 9 (8.7%) patients with DNSI succumbed to their infection. CONCLUSION: DNSI needs early detection and aggressive management in order to evade dreaded complications.

Deep neck infection: analysis of 185 cases.

PURPOSE: This study reviews our experience with deep neck infections and tries to identify the predisposing factors of life-threatening complications. METHODS: A retrospective review was conducted of patients who were diagnosed as having deep neck infections in the Department of Otolaryngology at National Taiwan University Hospital from 1997 to 2002. Their demographics etiology, associated systemic diseases, bacteriology, radiology, treatment, duration of hospitalization, complications, and outcomes were reviewed. The attributing factors to deep neck infections, such as the age and systemic diseases of patients, were also analyzed. RESULTS: One hundred eighty-five charts were recorded; 109 (58.9%) were men, and 76 (41.1%) were women, with a mean age of 49.5 +/- 20.5 years. Ninety-seven (52.4%) of the patients were older than 50 years old. There were 63 patients (34.1%) who had associated systemic diseases, with 88.9% (56/63) of those having diabetes mellitus (DM). The parapharyngeal space (38.4%) was the most commonly involved space. Odontogenic infections and upper airway infections were the two most common causes of deep neck infections (53.2% and 30.5% of the known causes). Streptococcus viridans and Klebsiella pneumoniae were the most common organisms (33.9%, 33.9%) identified through pus cultures. K. pneumoniae was also the most common infective organism (56.1%) in patients with DM. Of the abscess group (142 patients), 103 patients (72.5%) underwent surgical drainages. Thirty patients (16.2%) had major complications during admission, and among them, 18 patients received tracheostomies. Those patients with underlying systemic diseases or complications or who received tracheostomy tended to have a longer hospital stay and were older. There were three deaths (mortality rate, 1.6%). All had an underlying systemic disease and were older than 72 years of age. CONCLUSIONS: When dealing with deep neck infections in a high-risk group (older patients with DM or other underlying systemic diseases) in the clinic, more attention should be paid to the prevention of complications and even the possibility of death. Early surgical drainage remains the main method of treating deep neck abscesses. Therapeutic needle aspiration and conservative medical treatment are effective in selective cases such as those with minimal abscess formation.

Ludwig's angina: a clinical review.

Ludwig's angina is caused by a rapidly expanding cellulitis of the floor of the mouth and is characterized by a brawny induration of the floor and suprahyoid region (bilaterally), with an elevation of the tongue potentially obstructing the airway. In the pre-antibiotic era, Ludwig's angina was frequently fatal; however, antibiotics and aggressive surgical intervention have significantly reduced mortality. We reviewed nine patients with Ludwig's angina between July 1996 and June 2002, all of whom presented with fever, neck swelling, bilateral submandibular swelling and elevation of the tongue. In eight patients (89%) a dental infection appeared to be the underlying cause. High-dosage intravenous antibiotics directed towards the suspected causative microorganisms were given to all of the patients: two were treated successfully with conservative medical management, while seven underwent surgical drainage (a tracheotomy was necessary in one patient). Routine aerobic cultures were done on samples of drained material and the predominant microorganisms were Streptococcus species in two patients; there were none in the other five. Two patients had post-operative complications, but all recovered.

Deep neck abscess: a retrospective review of 210 cases.

This study was performed to review our experience with deep neck abscesses (DNAs) and compare it to the experiences in the available literature, and to study changing trends within our patient population. We retrospectively studied 210 patients who had DNAs between 1981 and 1998. Peritonsillar abscesses and limited intraoral abscesses were excluded. Demographics, presentation, etiology, site of abscess, associated systemic diseases, bacteriology, radiology, treatment, airway management, and outcome were reviewed. We compared the entire group to those in the available literature and studied changing trends within this patient population. Dental infection (43%) was the most common cause, followed by intravenous drug abuse (12%) and pharyngotonsillitis (6%). The incidences of intravenous drug abuse and mandibular fractures as causes of DNA were 19% and 8%, respectively, during the period 1981 to 1990, but were only 1% each during the period 1991 to 1998. Streptococcus viridans was the most common pathogen (39% of positive cultures), followed by Staphylococcus epidermidis (22%) and Staphylococcus aureus (22%). Lateral pharyngeal space abscess was the most common DNA (43%), followed by submandibular space abscess, Ludwig's angina, and retropharyngeal space abscess (28%, 17%, and 12%, respectively). Seventy-five percent of patients with true Ludwig's angina underwent tracheotomy. Nondental infections are no longer a significant etiologic factor in DNA. Streptococcus viridans has replaced S aureus and beta-hemolytic streptococci as the most common pathogen. Lateral pharyngeal space abscess was the most common DNA; however, its incidence has progressively decreased over the past decade. Intravenous drug abuse and mandibular fractures are no longer major etiologic factors. Tracheotomy is indicated in patients with Ludwig's angina.

Angina de Ludwig: manejo en el servicio de cirugía maxilofacial del Hospital Central Militar / Ludwig's angina: its treatment in the maxillo-facial department of the Military Central Hospital

Entre las complicaciones de las infecciones cervicofaciales se encuentra la angina de Ludwing, celulitis acentuada que por lo general comienza en el espacio aponeurótico submandibular y afecta en forma secundaria a los espacios aponeuróticos sublingual y submentoniano de forma bilateral. Es una infección letal ya que puede producir edema de glotis, elevación y proptrusión de la lengua causando obstrucción respiratoria progresiva. En el presente trabajo se informan 17 casos atendidos en el servicio de cirugía maxilofacial del Hospital Central Militar en los últimos 13 años. Los antibióticos de elección fueron penicilina G sódica cristalina y G procaínica, metronidazol, clindamicina y gentamicina. Los procedimientos quirúrgicos realizados fueron 15 canalizaciones y 2 fasciotomías. El manejo hospitalario de la angina de Ludwig, incluye un diagnóstico oportuno, el mantener una vía aérea permeable, iniciar antibioticoterapia masiva y una vez estabilizado el paciente; realizar los procedimientos quirúrgicos u odontológicos necesarios

Ludwig's angina.

A 13 year review of patients diagnosed to have Ludwig's angina admitted to the Christian Medical College and Hospital, Vellore, India, between March 1982 and April 1995 is presented. The patients were either admitted to the ENT or paediatric surgical units. There were 41 patients, 24% being children and 76% adults. The clinical profile and outcome of these two groups were compared. In the paediatric group, none had dental caries while in the adult group, 52% had associated dental caries. In children, 70% were controlled with conservative medical management unlike the adults of whom 81% needed incision and drainage. Tracheostomy was necessary in 10% of the children and in 52% of the adults. The mortality was 10% in both groups.