Burkholderia pseudomallei was Identified in a Melioidosis Aneurysm using Polymerase Chain Reaction Targeting 23S rRNA.

Melioidosis abdominal aortic aneurysm and splenic abscesses lead to poor prognosis and high mortality rate as high as 50% due to delayed/missed diagnosis. We describe an attempt to identify Burkholderia pseudomallei immediately, which was confirmed by polymerase chain reaction (PCR) and gene sequence analysis of 23S rRNA gene. PCR is not only an unambiguous identification of B. pseudomallei but also a rapid detection because B. pseudomallei may not be readily isolated. For patients of melioidosis abdominal aortic aneurysm with spleen abscess, prolonged antibiotic therapy, splenectomy and artificial vessel replacement provided an excellent result in our study. The progression, roentgenographic findings and histopathology character of melioidosis are similar to those of tuberculosis disease. PCR is useful to differentiate B. pseudomallei from Mycobacterium tuberculosis.

Paediatric neurological melioidosis: a rehabilitation case report.

CONTEXT: Melioidosis is a rare condition, endemic to northern Australia and south-east Asia, caused by an infection from the bacteria Burkholderia pseudomallei. The largest epidemiological review to date describes 540 cases of melioidosis seen at Darwin Hospital, in northern Australia, over a 20-year period. Of these, 14 (less than 3%) presented with neurological manifestation, with three deaths. Reports of paediatric cases of melioidosis are rarer. In a review of paediatric cases in northern Australia only eight cases were identified in 10 years. Three of these patients presented with neurological melioidosis, of whom two died in hospital. ISSUES: Whilst the literature refers to prolonged periods of hospitalisation for survivors, the trajectory of functional recovery and process of rehabilitation has not been described. This is a case report describing a 14-year-old boy who presented to a remote medical post with acute neurological symptoms (vomiting, severe headache, ataxia, cranial nerve VI and VII palsy) and was referred to the tertiary paediatric hospital in Perth, Western Australia. Cranial magnetic resonance imaging showed an extensive infiltrative lesion in the posterior fossa and hydrocephalus. Diagnosis of neurological melioidosis required isolation of the pathogen by brain biopsy through sub-occipital craniotomy. Medical treatment included surgical management of hydrocephalus, parenteral antibiotic treatment with meropenem and then a prolonged course of oral co-trimoxazole, enteral feeding and tonal management with levodopa-carbidopa and botulinum toxin A injections. Associated neurological signs and symptoms (bradykinesia, tremor, dysphagia, aphasia, hypertonia, exotropia) required intensive rehabilitation to address functional deficits and to promote independence. The purpose of this case report is to document the functional recovery and rehabilitation process of a paediatric case of neurological melioidosis. Knowledge of the recovery pathway is important to add to the understanding of natural history and treatment of this rare disease. LESSONS LEARNED: Occasions of service and functional assessments were recorded prospectively. Inpatient therapy (932 hours, with 934 occasions of service) was delivered across physiotherapy, occupational therapy and speech pathology over 9 months of an inpatient admission. Initial paediatric functional independence measure (WeeFIM) was 18/126, indicating complete dependence in all physical and cognitive domains. Following 9 months of intensive rehabilitation the WeeFIM was 53/126, indicating significant residual disability. This proved to be a challenge for discharge planning back to a remote region of Western Australia. Paediatric neurological melioidosis can lead to significant disability and long-term dependence, despite the provision of lengthy intensive rehabilitation. This case report highlights the challenges and complexity of the rehabilitation services required to optimise outcomes for this patient and achieve a safe discharge to a remote community where limited support services are available.

Outcomes of Adjunctive Therapy with Open Arthrotomy for Patients with Septic Arthritis Due to Melioidosis: A Retrospective Study.

Melioidosis is a potentially fatal infection caused by the bacterium Burkholderia pseudomallei. Septic arthritis caused by this infection is uncommon and difficult to treat. The role of adjunctive open arthrotomy in this type of infection has not yet been elucidated. We conducted a retrospective study of patients with microbiologically confirmed melioidosis between January 2002 and December 2022. Patients with a clinical condition of septic arthritis and positive cultures for B. pseudomallei were included. Comparisons were made between patients who received adjunctive therapy with open arthrotomy with conventional standard treatment and those who did not in terms of clinical outcomes and hospital expenditures. Of the 478 patients diagnosed with melioidosis microbiological confirmation, 81 patients had septic arthritis, accounting for 17% of cases. Among these patients, only 36 (44%) underwent adjunctive therapy with open arthrotomy. The 14-day and 30-day in-hospital mortality and length of hospital stays of patients who underwent adjunctive therapy with open arthrotomy were more favorable than those of patients who did not receive adjunctive therapy with open arthrotomy; however, the difference was not statistically significant. Patients who underwent adjunctive therapy with open arthrotomy had lower hospital expenditures (antimicrobial and non-antimicrobial costs) than those who did not undergo open arthrotomy. Adjunctive therapy with open arthrotomy for patients with septic arthritis due to melioidosis was associated with favorable clinical outcomes and significantly lower hospital expenditures.

Melioidosis pericarditis mimicking tuberculous pericarditis.

Cases of melioidosis (N = 2) and tuberculous pericarditis (N = 33) during 1996-2006 were reviewed. Clinical presentations were similar, but pericardial pathological findings were not. Nine of 12 patients with melioidosis required pericardectomy. In areas where these diseases are endemic, pericardial fluid culture and pericardial biopsy can differentiate between melioidosis and tuberculosis.

Prolonged intermittent fever and massive splenomegaly in a miner working in the tropical jungle, China.

Prolonged fever is a particular challenge. A 47-year-old man with 5-year intermittent fever and remarkable splenomegaly was diagnosed as chronic melioidosis after splenectomy. The case would help clinicians to raise awareness and include chronic melioidosis in the differential diagnosis for patients with the travel history in melioidosis endemic regions.

Septic arthritis of knee due to Burkholderia pseudomallei: a case report.

Burkholderia pseudomallei is an important cause of sepsis in certain parts of Asia and northern Australia. It usually causes abscess in the lungs, liver, spleen, skeletal muscle and parotids, especially in patients who are immunocompromised. In India, musculoskeletal melioidosis has rarely been reported. We report such a case with septic arthritis of the knee, diagnosed on the basis of a positive pus culture. After being treated by arthrotomy and surgical debridement followed by a combination of intravenous ceftazidime (acute phase = three weeks) and oral doxycycline and co-trimoxazole (eradication phase = five weeks) for two months, the patient recovered completely with no recurrence.

Cutaneous melioidosis: a review of the literature.

BACKGROUND: Melioidosis is mainly observed in South-East Asia, where Burkholderia pseudomallei is endemic. Cutaneous melioidosis (CM) has rarely been described and in contrast to systemic forms, there are no therapeutic recommendations to guide management. METHODS: We reviewed the literature published before January 2018, evaluating: dermatological presentation, natural history, diagnostic methods, and treatment options. We also distinguish between primary and secondary CM in which the infection first started in the skin or came from an extracutaneous localization, respectively, and chronic CM when duration exceeded 2 months. The recommended treatment for systemic forms included ceftazidime or meropenem, followed by oral maintenance therapy with cotrimoxazole or amoxicillin - clavulanic acid. RESULTS: Forty-three cases were published in 38 articles. Twenty-nine patients (67.4%) were travelers, including 13 (44.8%) returning from Thailand. Thirty-eight patients (88%) had primary CM, including nine (29.9%) with chronic infection. All cases of secondary CM first presented with acute infection. The median incubation time was 3 weeks. The most common presentation was cutaneous abscesses (58%). The recommended treatment was administered in 62.7% cases with 37.2% for maintenance therapy. Sixteen patients (37.2%) underwent surgery. Death was reported in less than 5%. CONCLUSION: CM should be considered in travelers returning from or residents of endemic countries, particularly Thailand, presenting with cutaneous abscesses, cellulitis, or ulcerations. Surgery may be necessary in a substantial proportion of patients and follow-up of at least 1 year is essential. Therapeutic recommendations need to be established.

Cranial melioidosis presenting as a mass lesion or osteomyelitis.

OBJECT: Melioidosis is caused by Burkholderia pseudomallei and causes multiple abscesses in different organs of the body. Cranial melioidosis, although uncommon, is sometimes confused with tuberculosis and is therefore under-recognized. The authors report on 6 cases of cranial infections caused by Burkholderia pseudomallei, presenting as mass lesions or cranial osteomyelitis, and review the literature. METHODS: The authors performed a retrospective review of the records of patients with cranial melioidosis treated at their institution between 1998 and 2005 to determine the presentation, management, and outcome of patients with this infection. RESULTS: Of the 6 patients diagnosed with cranial melioidosis during this period, 4 had brain abscesses and 2 had cranial osteomyelitis. All patients were treated surgically, and a diagnosis was made on the basis of histopathological studies. All patients were started on antibiotic therapy following surgery and this was continued for 6 months. One patient died soon after stereotactic aspiration of a brain abscess, and the other 5 patients had good outcomes. CONCLUSIONS: Cranial melioidosis is probably more prevalent than has been previously reported. A high index of suspicion, early diagnosis, initiation of appropriate antibiotic therapy and treatment for an adequate period are essential for assuring good outcome in patients with cranial melioidosis. The authors recommend surgery followed by intravenous ceftazidime treatment for 6 weeks and oral cotrimoxazole for 6 months thereafter in patients with cranial melioidosis.

Clinical Outcomes in Musculoskeletal Involvement of Burkholderia Pseudomallei Infection.

BACKGROUND: Musculoskeletal involvement in melioidosis is often seen in conjunction with a disseminated illness. Recent reports suggest that operative management of musculoskeletal melioidosis has favourable results. The purpose of this study was to review the patient profile and clinical outcomes of Burkholderia pseudomallei infection in the musculoskeletal system. METHODS: Hospital records of 163 patients who were diagnosed to have B. pseudomallei infection between January 2009 and December 2014 were reviewed. Patients underwent surgical and nonsurgical management depending upon the tissue of involvement. Epidata software was used to record the data. The SPSS ver. 17.0 was used for analysis. RESULTS: Eighteen out of 24 patients who had musculoskeletal melioidosis were available for follow-up. Septic arthritis, osteomyelitis, and intramuscular abscess were the common diagnosis, with 6 patients in each group. Twelve patients required surgical intervention. All patients received a full course of parenteral ceftazidime followed by oral doxycycline and co-trimoxazole. Two out of 6 patients (33.3%) died among those who had nonsurgical management as compared to none in the group who had surgical management. This was significant at 10% level of significance (p = 0.098). The rest were followed up for a minimum of 1 year with no evidence of disease recurrence. CONCLUSIONS: This series describing musculoskeletal involvement in melioidosis is the largest such study from a recently recognized 'endemic' region. Of importance are the patterns of musculoskeletal involvement, pitfalls in diagnosis and adequate clinical response with timely diagnosis and appropriate surgical management.

Arthroscopic Management of a Rare Case of Melioidotic Septic Arthritis of the Ankle in a New Endemic Area on the Southwest Coast of India: A Case Report.

CASE: We report a case of melioidotic septic arthritis of the ankle and secondary osteomyelitis of the talus in a 64-year-old farmer with diabetes mellitus. Arthroscopic drainage and debridement, followed by 6 months of appropriate antibiotic therapy, resulted in a good short-term outcome. CONCLUSION: Melioidotic septic arthritis of the ankle is extremely rare. This case report highlights the possibility of this disease occurring on the Indian subcontinent.

Cutaneous melioidosis in a healthy Danish man after travelling to South-East Asia.

A healthy Danish man presented with infected prepatellar bursitis 8 months after being involved in a car accident in Malaysia resulting in exposure of a laceration of his knee to stagnant water. Tissue samples grew Burkholderia pseudomallei and diagnostic work up revealed no secondary foci. The patient was successfully treated with surgical debridement and 3 months of oral trimethoprim-sulfamethoxazole. At 6 months follow-up the patient was without relapse.

Management of melioidosis osteomyelitis and septic arthritis.

Little information is available about several important aspects of the treatment of melioidosis osteomyelitis and septic arthritis. We undertook a retrospective review of 50 patients with these conditions in an attempt to determine the effect of location of the disease, type of surgical intervention and duration of antibiotic treatment on outcome, particularly complications and relapse. We found that there was a 27.5% risk of osteomyelitis of the adjacent bone in patients with septic arthritis in the lower limb. Patients with septic arthritis and osteomyelitis of an adjacent bone were in hospital significantly longer (p = 0.001), needed more operations (p = 0.031) and had a significantly higher rate of complications and re-presentation (p = 0.048). More than half the patients (61%), most particularly those with multifocal bone and joint involvement, and those with septic arthritis and osteomyelitis of an adjacent bone who were treated operatively, needed more visits to theatre.

Case report: recovery from persistent septicemic melioidosis.

Septicemic melioidosis is often fatal despite treatment with antibiotics such as ceftazidime to which Burkholderia pseudomallei, the causal pathogen, is sensitive in vitro. We report a near-fatal case of septicemic melioidosis with persistent B. pseudomallei bacteremia despite intravenous ceftazidime in which combination therapy with meropenem and ciprofloxacin, splenectomy and correction of metabolic acidosis allowed for hospital discharge. The choice of antibiotic agents was supported by intracellular minimum inhibitory concentration analysis using B. pseudomallei co-culture in Acanthamoeba trophozoites. The patient's B. pseudomallei isolates were indistinguishable by pulsed-field gel electrophoresis from clinical and environmental isolates previously analyzed during investigation of a Western Australian melioidosis outbreak. A combination of antibiotics known to possess intracellular activity against B. pseudomallei, surgery and supportive critical care may provide a means of improving the probability of survival in persistent septicemic melioidosis.

Cerebral melioidosis in Singapore: a review of five cases.

A variety of neurological manifestations of infection with Burkholderia pseudomallei have been described including cerebral abscesses, which are a well-recognized form of neurological melioidosis. The optimal antibiotic therapy for this condition has not been defined; however, combinations of intravenous antibiotics are frequently used in the early stages. Five cases of melioidosis involving brain abscesses are described which presented in Singapore over the past 3 years (1997-2000), 4 of which cases had evidence of disseminated infection. Despite profound neurological deficits and low Glasgow Coma Scale scores at presentation in 3 of these cases, all survived after surgical drainage and prolonged courses of intravenous ceftazidime or imipenem, and only 2 of whom had residual neurological impairment. One incidental finding on computed tomography (CT) or magnetic resonance imaging (MRI) scans not described before as an association with cerebral melioidosis was sinusitis in 4 out of the 5 cases.

Mycotic aneurysm caused by Burkholderia pseudomallei in a previously healthy returning traveller.

Burkholderia pseudomallei is a common cause of serious, difficult to treat infections in South-East Asia and Northern Australia, but is a rare imported pathogen in the USA and Europe. We report a case of a patient with a mycotic aneurysm caused by B. pseudomallei in a previously healthy returning traveller. The patient presented with 4 weeks of abdominal pain and intermittent fever after a brief vacation in Thailand. The aneurysm was excised and replaced by an autologous deep vein graft, and the patient was treated for 6 months with antibiotics adjusted according to postoperative renal impairment. Twenty-four months after surgery the patient is well and without relapse.

Stent-graft for recurrent melioidosis mycotic aortic aneurysm.

Melioidosis is a tropical disease caused by Burkholderia pseudomallei and is prevalent in South East Asia and Northern Australia. It can infect any organ system and is potentially deadly. Melioidosis causing a mycotic aneurysm of the aorta is rare. We present a patient with a melioidosis mycotic aneurysm of the descending aorta presenting with fever and right pleural effusion, managed successfully with initial Dacron graft repair with staged omental reinforcement, and subsequent endovascular stent grafting of a late anastomotic leak.

Melioidosis presenting as spinal epidural abscess.

Central nervous system melioidosis is an unusual infection in humans. This article reports a case of melioidosis presenting as an acute spinal epidural abscess. A discussion of this case and its management together with a brief review of melioidosis of the central nervous system is presented.

Melioidosis presenting as an infected intrathoracic subclavian artery pseudoaneurysm treated with femoral vein interposition graft.

We present the first case of in situ replacement of an infected subclavian artery using superficial femoral vein and the fourth reported case of an infected arterial pseudoaneurysm caused by pseudomonas pseudomallei. Sepsis and hoarseness developed in a 58-year-old man after recent travel to Borneo, Indonesia. Indirect laryngoscopy revealed a paralyzed right vocal cord. Computed tomography and arteriography revealed a 6.5-cm pseudoaneurysm of the proximal right subclavian artery. Blood cultures grew pseudomonas pseudomallei. An abnormal cardiac stress test prompted a coronary angiography, which revealed severe coronary artery disease.The patient underwent coronary artery bypass and in situ replacement of the infected subclavian artery pseudoaneurysm with a superficial femoral vein, along with placement of a pectoralis major muscle flap to cover the vein graft. Operative cultures of the pseudoaneurysm grew pseudomonas pseudomallei. The patient was treated with a 6-week course of intravenous ceftazidime and oral doxycycline and then continued on oral amoxicillin-clavulanate. One week after discontinuing intravenous antibiotics, the patient presented to the emergency department with a rapidly expanding, pulsatile mass in the right supraclavicular space. He was taken emergently to the operating room. After hypothermic circulatory arrest was accomplished, the disrupted vein graft and aneurysm cavity were resected and the subclavian artery was oversewn proximally and distally. Parenteral ceftazidime was continued for 3 months and oral amoxicillin-clavulanate (augmentin) was continued indefinitely. There was no evidence of infection clinically or by computed tomographic scan 2 years later. Although autogenous vein replacement of infected arteries and grafts may be successful in the majority of cases, this strategy should probably be avoided when particularly virulent bacteria such as the organism in this case are present.