Search PubMed⌕ Search

Biomedical subjects

S Pitlik

Publications and source records attributed to S Pitlik.

At least 19 recordsLinked to original sources

Sporotrichoid lymphangitis due to group A Streptococcus.

We describe what is, to our knowledge, the first case of sporotrichoid lymphangitis caused solely by group A Streptococcus in an otherwise healthy patient. Infection with pyogenic pathogens, such as streptococci and staphylococci, as well as with the most common causes of sporotrichoid lymphangitis (i.e., Sporothrix schenkii, Nocardia brasiliensis, Mycobacterium marinum, and Leishmania species) should be considered in differential diagnosis for some patients.

Humans↗

Tricuspid valve endocarditis in adult patients without known predisposing factors.

Four patients with no known predisposing conditions developed tricuspid valve endocarditis. All patients had community-acquired infection with a rapidly progressive course that was complicated by right heart failure and respiratory insufficiency. Pulmonary involvement was prominent in all cases. The infectious process was due to Staphylococcus aureus in three patients and to Streptococcus intermedius in one patient. Three patients underwent early surgical intervention; the outcome was favourable in all cases. It is clear that tricuspid valve endocarditis can occur in the absence of known predisposing factors, and when Staphylococcus aureus is involved, the course of the disease may be acute and rapidly progressive.

Adult↗

Amphotericin B--not so terrible.

OBJECTIVE: To describe a patient who developed adverse reactions to two different lipid formulations of amphotericin B: liposomal amphotericin B (AmBisome) and amphotericin B colloidal dispersion (ABCD, Amphocil), yet tolerated amphotericin B deoxycholate (Fungizone) despite renal toxicity. CASE SUMMARY: A 72-year-old woman with acute myelomonocytic leukemia was treated with amphotericin B deoxycholate for suspected pulmonary aspergillosis; the drug was well tolerated but resulted in renal failure. Antifungal therapy was then changed to liposomal amphotericin B. Within 10 minutes of liposomal amphotericin B infusion, the patient developed severe dyspnea, chest pain, and a feeling of imminent death. On the following day, liposomal amphotericin B was switched to amphotericin B colloidal dispersion. Again, within 10 minutes of this infusion, the patient developed fever, chills, hypotension, severe chest pain, dsypnea, and a feeling of imminent death. The patient refused any further treatment with these drugs and insisted on switching back to amphotericin B deoxycholate, which was then administered for 10 days and was well tolerated. DISCUSSION: Severe adverse reactions, such as anaphylaxis, cardiac toxicity, and respiratory failure, following administration of all three lipid formulations of amphotericin B have been reported. In most reported cases, switching to a different lipid formulation of amphotericin B was well tolerated. This is in contrast to our case, where a severe reaction was repeated when another lipid preparation was given, necessitating switching back to amphotericin B deoxycholate despite its nephrotoxicity. CONCLUSIONS: In some patients, paradoxically, lipid formulations of amphotericin B may be less tolerable than conventional amphotericin B.

Acute Kidney Injury↗

Seven-year study of bacteraemic pneumonia in a single institution.

In order to enhance current knowledge of nosocomial and community-acquired bacteraemic pneumonia in a single tertiary hospital in Israel, a 7-year study was conducted. Using a computerised database, all patients who had bacteraemic pneumonia from March 1988 to August 1995 were studied. During the study period, pneumonia was the source of bacteraemia in 319 of 4,548 (7%) episodes, occurring in 295 patients; 211 (66%) episodes were community-acquired and 108 (34%) were nosocomial. The microoroganisms isolated most frequently from patients with community-acquired bacteraemic pneumonia were Streptococcus pneumoniae (46%), Staphylococcus aureus (10%) and Haemophilus influenzae (8%); while Pseudomonas spp. (17%), Klebsiella spp. (11%) and Staphylococcus aureus (10%) were isolated most often from the patients with nosocomial bacteraemic pneumonia. The median age of patients was 68 years (range, 0.003-100). The overall mortality was 34%. No significant difference was found between the mortality rates of patients with community-acquired (31%) and nosocomial (40%) bacteraemic pneumonia (P=0.1). Multivariate analysis showed that hypothermia, respiratory failure, impaired consciousness, tracheal intubation, Staphylococcus aureus aetiology, septic shock, inappropriate empiric antibiotic treatment and age significantly increased mortality.

Aged↗

Osteomyelitis of the ribs in the antibiotic era.

A total of 106 cases of rib osteomyelitis were reviewed, including 2 cases described in detail. Mycobacterial and bacterial infections accounted for 47 cases each. Fungal rib osteomyelitis occurred in 11 cases and 1 case was caused by Entamoeba histolytica. Most cases occurred in children and young adults. The mean duration of symptoms before diagnosis was 16, 26 and 32 weeks for bacterial, mycobacterial and fungal rib osteomyelitis, respectively. Common clinical signs were fever (73%), soft tissue mass (64%) and chest pain (60%). Route of infection was defined in 85 cases: 62% from contiguous spread and 38% via haematogenous route of infection. Eighty-nine percent had a favourable outcome after antimicrobial therapy with or without surgery. In conclusion, rib osteomyelitis is a rare infection of various aetiologies. The majority of cases occur in children and young adults and its diagnosis is usually delayed for several weeks.

Adult↗

Prediction of mortality in patients with bacteremia: the importance of pre-existing renal insufficiency.

Pre-existing renal insufficiency serves as a common risk factor in the development of acute renal failure. Acute renal failure is a common finding in patients with bacteremia and is associated with poor prognosis. A total of 2722 consecutive patients 18 years old or older, fulfilling strike criteria of bacteremia or fungemia were prospectively evaluated to establish the prognostic importance of pre-existing renal insufficiency in bacteremic patients. They were classified according to serum creatinine levels upon admission into three groups. 915 patients had normal creatinine levels (< or = 1.0 mg/dL), 1528 had mild to moderate renal failure (creatinine 1.1-3 mg/dL) and 279 patients had severe renal failure upon admission (creatinine > 3.0 mg/dL). Mild to severe renal failure upon admission was associated with old age, male gender, diabetes mellitus, ischemic heat disease, hypertension and congestive heart failure. The serum albumin in patients with severe renal failure was significantly low, with a mean of 2-9 mg/dL. Urinary tract infections were more prevalent in patients with mild to severe renal failure, while intravenous line infections, bacterial endocarditis and soft and skin tissue infections were more common in patients with normal renal function. In the 279 patients with severe renal failure the mortality rate was significantly higher (50%) compared to patents with mild to moderate renal failure and patients with normal renal function (21% and 26% respectively, p = 0.0001). Multiple regression analysis revealed that pre-existing serum creatinine > 3 mg/dL was significantly associated with death attributable to bacteremia (OR = 1.7, 95% CI 1.0-2.7). In conclusion, adult bacteremic patients with pre-existing serum creatinine above 3 mg/dL upon admission are at increased risk of mortality due to bacteremia than patients with normal or mild to moderate renal failure.

Aged↗

Reply

Explore the source record for details and available documents.

Journal Article↗

Home intravenous antibiotic therapy for patients with infective endocarditis.

Although home intravenous antibiotic therapy (HIAT) is increasingly being used for various infectious diseases, outpatient treatment of infective endocarditis (IE) is still uncommon. Recently, the American Heart Association recommended outpatient treatment of endocarditis only for infections with streptococci that are highly susceptible to penicillin. Herein, the experience with HIAT in patients with IE due to a diversity of pathogens is presented. During a 3-year period, 37 patients with IE who were in a stable condition and were cooperative were enrolled in a service for HIAT after completion of diagnostic procedures. Of the 37 patients, 21 were male; mean age was 64.3 years (range 20-87 years); in most cases (26/37), IE involved a native valve. Causative organisms were Streptococcus spp. (20), Staphylococcus spp. (10), Enterococcus spp. (2), Enterobacter spp. (1), and Erysipelothrix rhusiopathiae (1), while three were unknown. The most common antibiotics used were ceftriaxone and vancomycin. Almost three-quarters of the intravenous lines were peripheral. The mean duration of HIAT was 26.2 +/- 8.5 days, with 92% of the patients cured by it. Most complications were minor. Six patients were rehospitalised and two of them required valve replacement. In half of the rehospitalised patients, the complication was unrelated to HIAT. Surprisingly, almost all of the complications necessitating rehospitalisation occurred in patients with streptococcal IE and most involved native valves. HIAT may be suitable for IE due to a diversity of pathogens and involving prosthetic as well as native heart valves, provided there are proper patient and antibiotic selections, good follow-up, and vigilant monitoring of complications.

Adult↗

Infective endocarditis in renal transplant recipients.

Because of the increasing number of renal transplantations performed and the rarity of reported cases of infective endocarditis in these patients, we studied the clinical characteristics of this infection in this population. We report on two cases from our experience and review reported cases of infective endocarditis in renal transplant recipients retrieved from the MEDLINE system. In addition, we reviewed a large series of infective endocarditis looking for patients with renal transplants. In addition to our 2 cases, 12 previously reported cases were found. The mean time from transplantation to diagnosis of infective endocarditis was 3.5 years (range 2 months to 15 years). Causative organisms included fungi, Staphylococcus aureus (3 cases each), Corynebacterium sp. (2 cases), Streptococcus viridans, VRE, Brucella sp., Clostridium sp., Nocardia sp. and Erysipelothrix sp. (one case each). Skin manifestations of endocarditis and/or splenomegaly were not reported in these patients. Septic emboli and mycotic aneurysms were relatively common. The overall mortality rate was 50% (7 of 14 patients died). Infective endocarditis seems to be rare in renal transplant recipients. The few reported cases are characterized by unusual causative micro-organisms and atypical clinical presentation. Further studies are needed to delineate the magnitude and scope of this association.

Adult↗

Nontyphoid Salmonella bacteremia: age-related differences in clinical presentation, bacteriology, and outcome.

In a retrospective study, 80 episodes of nontyphoid salmonella (NTS) bacteremia in children were compared with 55 episodes in adults over a 10-year period. The study disclosed major differences in the predisposition, clinical presentation, and outcome as well as the microbiology of NTS bacteremia in relation to age. Adults were more likely than children to have predisposing diseases (95% vs. 15%, respectively; P < .0001) and to receive prior medications (95% vs. 23%, respectively; P < .0001), particularly immunosuppressive agents (58% vs. 5%, respectively; P < .0001). In most adults (67%), NTS infection presented as a primary bacteremia and was associated with a high incidence of extraintestinal organ involvement (34%) and a high mortality rate (33%). In children, NTS bacteremia was usually secondary to gastroenteritis (75%) and caused no fatalities. Although group D Salmonella (78%) and the serovar Salmonella enteritidis were the predominant isolates from adults, the emergence of infections due to group C Salmonella (46%) and the serovar Salmonella virchow in children was noted.

Adolescent↗

Unexpected candidemia complicating ureteroscopy and urinary stenting.

Two elderly patients with obstructive renal calculi who developed Candida albicans bloodstream infection within 12 h following ureteroscopy and ureteral stenting are described. Both patients were treated with prolonged courses of broad-spectrum antibiotics and were found to have urine cultures positive for Candida albicans prior to the urologic procedures. One patient also developed bilateral candidal endophthalmitis. The clinical presentation was indistinguishable from bacteremia complicating manipulation of the urinary tract. The patients were successfully treated with systemic antifungal therapy. Candiduria may present a risk for dissemination during invasive, relatively simple urologic procedures.

Aged↗

Intravenous leiomyomatosis with cardiac involvement in a pregnant woman.

Intravenous leiomyomatosis is a rare benign neoplasm that commonly grows into the pelvic veins and the inferior vena cava and, rarely, the right side of the heart. We report the first case of intravenous leiomyomatosis with cardiac involvement in a pregnant woman. The treatment of choice is surgical resection in two steps.

Adult↗

Cellulitis caused by Citrobacter diversus in a patient with multiple myeloma.

The most common cause of cellulitis is streptococci. Coagulase-negative staphylococci and gram-negative bacteria, such as Serratia spp., Proteus spp., and other Enterobacteriaceae may produce cellulitis in the immunocompromised patient. We report a case of Citrobacter diversus-induced cellulitis, resembling streptococcal infection, in a patient with multiple myeloma.

Anti-Infective Agents↗