Massive ocular hemorrhage resulting in blindness in a patient with the sickle cell trait who developed leptospirosis. Case report

Atypical manifestations of leptospirosis

Leptospirosis is an illness with a wide spectrum of clinical manifestations and severe illness affects nearly all organ systems. Serious and potentially life-threatening clinical manifestations of acute leptospirosis are caused by both direct tissue invasion by spirochaetes and by the host immune responses. In its severe form, leptospirosis can cause multi-organ dysfunction and death in a matter of days. Therefore it is critical to suspect and recognize the disease early, in order to initiate timely treatment. While the classical presentation of the disease is easily recognized by experienced clinicians practising in endemic regions, rarer manifestations can be easily missed. In this systematic review, we summarize the atypical manifestations reported in literature in patients with confirmed leptospirosis. Awareness of these unusual manifestations would hopefully guide clinicians towards early diagnosis.

Vitreous Hemorrhage in Children

PURPOSE

To describe the presentations, etiologies, and visual outcomes of spontaneous and traumatic vitreous hemorrhage in children.

DESIGN

Retrospective case series of patients seen over 8 consecutive years.

PARTICIPANTS

One hundred sixty-eight patients (186 eyes), younger than 18 years, with vitreous hemorrhage not secondary to active retinopathy of prematurity (ROP).

METHODS

Charts were reviewed and data were compiled with special attention to demographic information, diagnosis, examination findings, visual acuity (VA) on presentation and last follow-up, treatment type, and length of follow-up.

MAIN OUTCOME MEASURES

Etiologies, presenting symptoms, initial and final VAs, and management modalities.

RESULTS

Among 168 patients (186 eyes), the most common presenting symptom was decreased VA in older patients and strabismus and nystagmus in younger patients. Seventy-three percent of cases occurred secondary to manifest and occult trauma, with blunt (29.6%) and penetrating (24.7%) trauma being most common. Twenty-seven percent of hemorrhages occurred spontaneously, with regressed ROP being most common. Of the cases, 90.5% were unilateral and 9.5% were bilateral. Shaken baby syndrome accounted for 50% of bilateral cases. The most common management modalities were observation (50.0%) and incisional surgery (45.7%), but frequency of management modality varied by etiology. Visual outcomes, which were limited by variable follow-up and nonstandardized acquisition, were poorest with penetrating trauma and best with regressed ROP. There was no statistical difference in severe vision loss between children older than 8 years and younger than 8.

CONCLUSIONS

Pediatric vitreous hemorrhage may have multiple etiologies, but manifest and occult trauma are most common. Regressed ROP is a common cause of spontaneous vitreous hemorrhage. A substantial proportion of patients with vitreous hemorrhage had severe vision loss, but outcomes were highly dependent on underlying etiology.

Penicillin at the late stage of leptospirosis: a randomized controlled trial

There is evidence that an early start of penicillin reduces the case-fatality rate of leptospirosis and that chemoprophylaxis is efficacious in persons exposed to the sources of leptospira. The existent data, however, are inconsistent regarding the benefit of introducing penicillin at a late stage of leptospirosis. The present study was developed to assess whether the introduction of penicillin after more than four days of symptoms reduces the in-hospital case-fatality rate of leptospirosis. A total of 253 patients aged 15 to 76 years with advanced leptospirosis, i.e., more than four days of symptoms, admitted to an infectious disease hospital located in Salvador, Brazil, were selected for the study. The patients were randomized to one of two treatment groups: with intravenous penicillin, 6 million units day (one million unit every four hours) for seven days (n = 125) and without (n = 128) penicillin. The main outcome was death during hospitalization. The case-fatality rate was approximately twice as high in the group treated with penicillin (12%; 15/125) than in the comparison group (6.3%; 8/128). This difference pointed in the opposite direction of the study hypothesis, but was not statistically significant (p = 0.112). Length of hospital stay was similar between the treatment groups. According to the results of the present randomized clinical trial initiation of penicillin in patients with severe forms of leptospirosis after at least four days of symptomatic leptospirosis is not beneficial. Therefore, more attention should be directed to prevention and earlier initiation of the treatment of leptospirosis.