SUBACUTE CEREBELLITIS IN LYME DISEASE

Cerebellitis is not a recognised manifestation of Lyme disease. We describe a patient with clinical features of subacute cerebellitis, cerebrospinal fluid (CSF) monocytic pleocytosis, positive CSF Borrelia burgdorferi antibodies, negative brain magnetic resonance imaging and a benign course after treatment with ceftriaxone. Possible earlier cases are discussed. Lyme disease should be considered in all cases of subacute cerebellitis.     

Jolt Accentuation of Headache: The Most Sensitive Sign of CSF Pleocytosis

We prospectively examined the clinical signs of 54 febrile patients associated with recent-onset headache. They underwent lumbar puncture (LP) on suspicion of meningitis. The relation of each sign to cerebrospinal fluid (CSF) pleocytosis was estimated. Among 34 patients with pleocytosis, 33 had jolt accentuation (sensitivity: 97.1%), while only 5 of them had neck stiffness or Kernig's sign. Among 20 patients without pleocytosis, 12 had no jolt accentuation (specificity: 60%). We found jolt accentuation to be the most sensitive sign of CSF pleocytosis. If jolt accentuation is noted in a febrile patient associated with recent onset headache, the CSF should be examined even in the absence of neck stiffness or Kernig's sign.     

The C6 Lyme antibody test has low sensitivity for antibody detection in cerebrospinal fluid

Our aim was to evaluate the performance of the commercial Immunetics C6 Lyme ELISA assay as a screening assay for anti-Borrelia burgdorferi antibodies in cerebrospinal fluid (CSF). Sensitivity of C6 ELISA was determined in 28 consecutive patients who were diagnosed with neuroborreliosis and had evidence for intrathecal antibody synthesis on immunoblot analysis. The presence of additional bands in CSF or of bands with a stronger intensity in CSF compared with serum was considered evidence of intrathecal synthesis. All 28 patients tested borderline or positive with C6 ELISA on serum. Of the 28 CSF samples, 17 (61%) and 19 (68%) tested positive with C6 ELISA using a threshold of 0.9 and 0.5 (optical density/cutoff). The C6 Lyme ELISA tested has a low sensitivity for antibody detection in cerebrospinal fluid compared with immunoblot analysis.     

Chronic daily headache: When to suspect meningitis

Millions of patients see physicians each year for headache, most of which are primary headaches. However, serious secondary headaches, such as meningitis, represent about 5% of children and 1% to 2% of adults seen in the emergency department for headache. A primary care or emergency department physician may initially miss individuals with bacterial meningitis. Considering meningitis as a headache cause is important because delay in the diagnosis may have adverse consequences. A careful history and physical examination are central in identifying individuals at high risk for meningitis. This article lists information that can be obtained from the patient that may be indicative of meningitis. Performing a lumbar puncture with appropriate examination of the cerebrospinal fluid (CSF) is the key to establishing the diagnosis of meningitis. This article also includes the types of meningitis that should be considered when the CSF demonstrates a pleocytosis.     

Is IgM of diagnostic value in case of delayed intrathecal production of IgG antibodies?

The neurological manifestations of Lyme borreliosis comprise a wide range of clinical signs. However, these symptoms might have other aetiologies. Therefore detection of intrathecal production of specific antibodies is necessary to confirm the clinical assumption of neuroborreliosis (NB). In case of delayed intrathecal production of specific IgG antibodies, detection of IgM could play a role in the early diagnosis of NB. To clarify whether IgM is of diagnostic value in such cases, paired CSF serum samples from 176 patients with suspected NB admitted to the department of Neurology, Karl Franzens University, Graz, Austria, were tested. Testing was performed with the IDEA Neuroborreliosis Kit (Dako, Denmark) and Enzygnost Borreliosis (Behring, Germany) and results of both methods were compared. According to well defined criteria 63 of the 176 patients had defined NB and 113 were regarded as possible NB. Twelve out of 63 patients with defined NB had delayed intrathecal IgG production. Only one patient with delayed IgG production had an intrathecal IgM production prior to IgG. In all patients with possible NB no intrathecal production of IgM was detected. At the time of the first lumbar puncture IgG intrathecal production could be detected with the IDEA seven times more often than with the Enzygnost Borreliosis. The determination of intrathecal production of IgM does not appear to be of diagnostic value in patients with delayed IgG antibody production. Therefore a consecutive lumbar puncture is more likely to confirm clinical assumption if there is strong clinical evidence of NB.     

Schmerzsyndrome bei zeckenübertragenen Borrelieninfektionen des Nervensystems

Tick-borne borreliosis (Borrelia burgdorferi) is a common and complex disorder affecting the skin, the joints and the nervous system. It progresses through different clinical stages. The clinical spectrum of neuroborreliosis has expanded since the introduction and widespread application of specific serological tests. We have investigated 41 patients with Bannwarth's meningopolyneuritis (MPN) as the classical form of neuroborreliosis, in a prospective (26 patients) and a retrospective (15 patients) study. When questioned, 19/41 patients reported a tick bite and only 15/41, erythema migrans as the characteristic early skin lesion. In 34/41 patients typical MPN characterized by painful radiculoneuritis and/or cranial neuritis, especially facial palsy, were seen. Among these, 3 had a complicated form with a progressive remitting relapsing course or focal central nervous system involvement (hemiparesis, cerebellar syndrome); 2 had mild meningitis and facial nerve palsy bilaterally without radicular pain; and in 5 radicular pain was the only symptom. MPN associated with Lyme arthritis was observed only once. In 2 patients in the retrospective study (no antibiotics in the acute stage) we saw a chronic spinal cord disorder with spastic paresis several years after uncomplicated MPN, accompanied in 1 of them by acrodermatitis chronica atrophicans (ACA), the typical late-onset borrelia-induced dermatosis. In the acute stage of the disease 40/41 patients had a cerebrospinal fluid (CSF) syndrome compatible with MPN (mononuclear pleocytosis, blood-brain barrier dysfunction, elevated IgG and/or oligoclonal bands). IgG antibody titers against borrelia antigen were elevated in all patients in the serum and in 21/30 also in the CSF. In all patients pain was an early and prominent symptom; the first symptoms are usually felt in the region of the tick bite or the erythema, initially as diffuse myalgia, arthralgia or pain in the connective tissue. In the further course the migrating pain becomes more radicular in character, without being limited to defined dermatomic areas or peripheral nerves. The intense, burning pain is characterized by exacerbation during the night. Peripherally and centrally acting analgesics have only minor effects. Often neurological deficits are still absent at this time. Erythema migrans with radicular pain in the region of the dermatological lesion was observed in 2 patients. This is an early manifestation of MPN. After MPN and/or Lyme arthritis a sympathetic reflex dystrophy (SRD) developed in 2 patients. In a further patient SRD was observed right at the beginning of the illness, immediately before MPN. There is a close clinical similarity between SRD and the acute stage of ACA. Therefore, borreliosis can be assumed to produce a painful skin dystrophy like SRD or ACA by direct injury to the sympathetic nerves even in the early clinical stage of the infection. The main conditions to be considered in the differential diagnosis are polymyalgia rheumatica; lumbar disk herniation; inflammatory radiculopathies of other origin (e.g. herpes zoster); painful neuropathies, including the diabetic thoraco-abdominal form; internal disorders of chest and abdomen with referred pain; lymphocytic meningitis of other origin, encephalomyelitis; and sympathetic reflex dystrophy. High-dose penicillin G i.v. is a potent analgesic in all patients with tick-borne neuroborreliosis.     

Hypersensitivity to Substance P in the Etiology of Postlumbar Puncture Headache

Objective.-Postlumbar puncture headache may represent a model which could be used to test the hypothesis that headache pain is caused by the release of substance P in patients who are predisposed to headache due to hypersensitivity to substance P.
Methods.-We measured substance P in CSF and plasma in 37 patients undergoing diagnostic lumbar puncture. In 9 patients, plasma samples were obtained before lumbar puncture, in 28 patients plasma was obtained after lumbar puncture. Patients were followed up by telephone to determine if they developed postlumbar puncture headache. Patients were also asked about a history of chronic or recurrent headaches. Substance P was determined by radioimmunoassay.
Results.-The mean plasma substance P levels obtained before lumbar puncture was 1.0 ± 0.1 pg/mL and 1.3 ± 1.2 after lumbar puncture (P<0.0005). The mean plasma substance P levels in subjects who developed postlumbar puncture headache was 0.6 ± 0.6 pg/mL compared with 1.4 ± 1.5 in subjects who remained headache-free ( P <0.05). The mean CSF substance P levels in subjects who developed postlumbar puncture headache was 0.7 ± 0.5 pg/mL compared with 1.2 ± 0.8 in subjects who remained headache-free ( P <0.05). There were no significant differences in substance P levels between chronic headache sufferers and nonheadache subjects.
Conclusions.-Postlumbar puncture headache may be mediated by the release of substance P triggered by lumbar puncture, in patients predisposed to headache by a hypersensitivity to substance P. Hypersensitivity to substance P may also represent a mechanism for headache pain in other headache disorders.     

Diagnostic value of PCR for detection of Borrelia burgdorferi DNA in clinical specimens from patients with erythema migrans and Lyme neuroborreliosis.

BACKGROUND: The aim of the study is to evaluate the diagnostic sensitivity of a 16S ribosomal RNA-based PCR on clinical specimens from patients with erythema migrans (EM) and neuroborreliosis and to compare the sensitivities with those obtained by in vitro culture and serological testing. A semiquantitative detection system, representing the input amount of specific DNA and thus the density of spirochetes in clinical specimens, indicated the preferred clinical sample to obtain for PCR testing. METHODS AND RESULTS: Skin biopsy and urine samples from 31 patients with EM and cerebrospinal fluid (CSF) and urine samples from 30 patients with neuroborreliosis were investigated. Borrelia burgdorferi DNA was detected in 71% of the skin biopsy specimens and 13% of the urine samples from patients with EM. Forty-one percent of the patients with EM were found to have B burgdorferi-specific antibodies in serum, and B burgdorferi was cultured in 29% of the EM specimens. For patients with neuroborreliosis, the diagnostic sensitivities in CSF and urine samples were 17% and 7%, respectively. Specific intrathecal antibody production was found in 90% of the patients, and 87% showed elevated B burgdorferi antibodies in serum. In general, PCR of skin biopsy samples yielded very high amounts of amplicons versus low amounts for CSF and urine samples. CONCLUSIONS: PCR of skin biopsy specimens is currently the most sensitive and specific test for the diagnosis of patients with EM, superior to culture and serological testing. For B burgdorferi-specific CSF disgnosis in patients with neuroborreliosis, the measurement of specific intrathecal antibody synthesis is superior to PCR. However, in patients with a short duration of disease (<14 days), PCR may be a useful diagnostic supplement. PCR of urine samples cannot be recommended at the present time for routine diagnosis of patients with EM or neuroborreliosis.     

Non-Migrainous Headache and Transient Neurological Deficits

SYNOPSIS
Two young patients experienced transient and recurrent neurological deficits, associated with headache, without fever, signs of meningeal irritation or systemic disease.
This situation in a young patient is usually a manifestation of migraine, but none of our patients had a history f vascular headache. Lumbar puncture was performed, and CSF pleocytosis found in both cases. These cases may represent a poorly recognized benign syndrome of transient neurological signs of headache and a sterile inflammatory reaction in the CSF.     

Changing pattern of headache pointing to cerebral venous thrombosis after lumbar puncture and intravenous high-dose corticosteroids

OBJECTIVE: To emphasize the diagnostic importance of change in the headache pattern which pointed to cerebral venous thrombosis in two patients after lumbar puncture and high-dose intravenous methylprednisolone for suspected multiple sclerosis. RESULTS: Both patients had a diagnostic lumbar puncture for suspected multiple sclerosis and were treated with high-dose intravenous methylprednisolone. Both developed a postlumbar puncture headache that was initially postural, typical of low cerebrospinal fluid pressure. Three days later, the headache became constant, lost its postural component, and was associated with bilateral papilledema. Magnetic resonance imaging of the brain disclosed superior sagittal and lateral sinuses thrombosis. The diagnostic difficulties of such cases and the potential role of lumbar puncture and corticosteroids as risk factors for cerebral venous thrombosis are discussed. CONCLUSIONS: When a typical postdural puncture headache loses its postural component, investigations should be performed to rule out cerebral venous thrombosis, particularly in the presence of other risk factors.     

Impact of pseudotumor cerebri (idiopathic intracranial hypertension) in pregnancy: a case report

This case report reviews anesthetic management and medical considerations for a pregnant patient with a history of pseudotumor cerebri (PTC). The 24-year-old woman, gravida 2, paragravida 0, spontaneous abortion 1, was in active labor at an estimated 38 weeks' gestation and had been given a diagnosis of PTC 4 years earlier. This patient first experienced global headaches and blurred vision at age 20 years. At the time of onset of her headache symptoms, she underwent a full diagnostic workup and detailed neurologic examination, including magnetic resonance imaging (MRI) of the brain and a lumbar puncture. The MRI was normal. Her lumbar puncture showed elevated cerebral spinal fluid (CSF) pressures and normal CSF composition. The patient's initial symptoms of headache and blurred vision were managed with medication and serial lumbar punctures. The patient was free of PTC symptoms on admission for labor. A lumbar epidural was placed for labor analgesia. The patient delivered a healthy infant after approximately 10.5 hours of patient-controlled epidural analgesia.     

Cerebrospinal fluid findings in patients with symptoms suggesting chronic Lyme borreliosis

BACKGROUND: Patients with non-specific long-lasting symptoms such as headache, concentration disturbances, and vertigo and who have positive serum borrelial antibody titres are often assumed to have chronic Lyme borreliosis. Because of the possibility that they may have central nervous system involvement they are frequently treated with courses of i.v. ceftriaxone. We assessed central nervous system involvement by examining cerebrospinal fluid samples in a group of such patients. PATIENTS AND METHODS: Adult patients who qualified for the study had non-specific symptoms suggesting central nervous system involvement for longer than six months (but without overt clinical signs of such involvement) and positive serum borrelial antibody titres and/or erythema migrans prior to the onset of symptoms. Cerebrospinal fluid was examined in all patients. RESULTS: None of the 77 patients included in the study (median duration of symptoms 18 months) had pleocytosis and there was no isolation of Borrelia burgdorferi sensu lato from cerebrospinal fluid. Mildly elevated protein concentration and intrathecal borrelial IgG antibody synthesis were demonstrated in 16 (21%) and 7 (9.1%) patients, respectively. CONCLUSIONS: In patients with non-specific long-lasting symptoms attributed to Lyme borreliosis but with the absence of overt clinical signs suggesting central nervous system involvement, the findings of cerebrospinal fluid examination are usually in the normal range. Routine treatment of such patients with i.v. ceftriaxone is not to be encouraged.     

The role of lumbar puncture in the diagnosis of subarachnoid hemorrhage when computed tomography is unavailable

Subarachnoid hemorrhage (SAH) is an important but uncommon condition in the differential diagnosis of acute headache. Most authorities recommend that patients with suspected SAH undergo noncontrast computed tomography (CT) as a first diagnostic intervention. If the results of the CT scan are negative, a lumbar puncture should be performed. Many nonurban Canadian hospitals do not have CT scanners and must either transfer patients or consider performing lumbar puncture prior to CT. In selected patients, performing lumbar puncture first may be an option, but timing of the procedure and the interpretation of results is important.     

55例脑膜癌脑脊液肿瘤细胞形态特征分析

目的:探讨研究不同恶性肿瘤脑膜转移的脑脊液肿瘤细胞形态特征,对细胞学诊断上的意义.方法:分析研究近3年多以来临床拟诊脑膜癌病55例,临床、影像学资料、首次腰穿脑脊液糖、总蛋白质测定以及肿瘤细胞形态特征.结果:临床资料显示,患者近2～3周来均出现明显的头痛、头晕、记忆力减退且逐渐加重,其中6例伴有恶心、呕吐,2例伴有精神...     

Cerebrospinal fluid/blood glucose ratio as an indicator for bacterial meningitis

Background

Bacterial meningitis is an emergent disease requiring prompt diagnosis and treatment with appropriate antimicrobials. Although the lumbar puncture is widely used as a diagnostic tool for bacterial meningitis, it remains unclear which value in cerebrospinal fluid (CSF) analysis in emergency laboratory tests precisely predicts the presence of bacterial meningitis.

Methods

This is a single-center, retrospective review of medical records to determine which emergency laboratory CSF test results are useful for predicting bacterial meningitis. The diagnosis of meningitis is made when the white blood cell count in CSF exceeds 5 cells/μL, while the diagnosis of bacterial meningitis additionally requires the growth of a pathogen from a CSF culture or the identification of a pathogen in Gram staining of CSF specimen.

Results

We identified 15 patients with bacterial meningitis and 129 patients with aseptic meningitis. While neutrophil-predominant pleocytosis and a decreased glucose level in CSF can predict the presence of bacterial meningitis, the CSF/blood glucose ratio is more precise (optimal cut-off = 0.36, sensitivity = 92.9%, specificity = 92.9%, area under the curve = .97) even after administration of antimicrobials prior to examination in the emergency department.

Conclusion

This study suggests that the CSF/blood glucose ratio may be a better single indicator for bacterial meningitis. Since the CSF glucose and blood glucose values are promptly and easily obtained from a lumbar puncture, the CSF/blood glucose ratio should be considered as a timely diagnostic indicator of bacterial meningitis. It may also help exclude the diagnosis of bacterial meningitis especially in cases in which no microorganisms can be cultured.     

Spinal intradural schwannoma presenting with acute subarachnoid hemorrhage: a case report and review of published reports

Acute subarachnoid hemorrhage (SAH) presentation is a very rare occurrence in spinal schwannomas. We report a case of lumbar schwannoma in a patient presenting first with acute SAH. A 40-year-old man was referred to our department 7 days after the sudden onset of headache, neck pain, and fever. SAH was suspected; however, head computed tomography (CT) findings were normal. A lumbar puncture indicated blood-stained cerebrospinal fluid (CSF). Moreover, the CSF pressure changed from 200 mmH₂O to 90 mmH₂O after drainage of 10 mL of CSF indicating a blockage of CSF. Subsequent magnetic resonance imaging (MRI) confirmed an intradural tumor with SAH, which also caused blockage of the CSF circulation. The patient underwent immediate surgery and fully recovered. In conclusion, the early diagnosis and total removal of the tumor and blood clot significantly improved the patient’s outcome. There is a high index of suspicion for spinal tumors resulting in SAH when there is a CSF pressure change after lumbar puncture in an SAH patient.     

Lymphocyte reactivity against purified Lyme disease Borrelia cell components in individuals with neuroborreliosis

Lymphocyte proliferative responses to whole-cell antigen and three subcellular protein fractions of Lyme disease Borrelia were investigated. The lymphocytes were obtained from patients previously diagnosed as having early or late neuroborreliosis. Patients with late neuroborreliosis were tested 1–7 yr after antibiotic treatment of the disease. One of the subcellular protein fractions contained 12 proteins of defined molecular weights, the second fraction contained predominantly the outer surface proteins (Osp) A and OspB, and the third fraction contained, as the major component, the flagellum of Lyme disease Borrelia. This study demonstrated that the lymphocyte proliferative assay had a sensitivity of 88% in late neuroborreliosis patients and 75% in patients with previous early neuroborreliosis when whole cells were used as antigen. A similar sensitivity had previously been seen when the sera of these patients had been analysed for Borrelia burgdorferi-specific IgG antibodies. Of the three subcellular fractions, the flagellin fraction demonstrated the highest sensitivity, 64% in late neuroborreliosis patients and 62% in patients with previous early neuroborreliosis. Furthermore, the whole-cell antigen and the flagellin fraction showed matching specificity (73%) in this lymphocyte proliferative assay. The results of the present study show that the determination of lymphocyte proliferative responses to subcellular components of Borrelia is a useful complement to the determination of serological responses for the diagnosis of Lyme borreliosis. This study also showed that the lymphocyte proliferative assay had a sensitivity similar to that of serology, irrespective of whether patients had active borreliosis or if testing successfully treated patients.     

以发作性头痛为主要表现的莱姆病两例报道

莱姆病是一种由蜱传播的感染性疾病，１９７５年首先在美国发现，８０年代国内陆续有人报道。本病是一种可累及多个系统的疾病。以发作性头痛为主要表现者尚未报道。本文报道两例以发作性头痛为主要表现的莱姆病，对其临床特征进行了描述，并对其治疗进行了讨论。作者指出，及时明确诊断对于莱姆病头痛的治疗十分重要。     

Cerebral venous thrombosis after lumbar puncture and high steroid cycle in a patient with multiple sclerosis

The present case report underlies the importance of modifications in the characteristics of post-lumbar puncture headache, which led us to diagnose cerebral venous thrombosis in a 34-year-old woman affected by multiple sclerosis. The patient underwent a lumbar puncture for diagnostic purposes and successively was treated with megadoses of methylprednisolone (1 g intravenously for 6 days). After lumbar puncture, the patient developed an orthostatic headache sue to cerebrospinal fluid (CSF) hypotension. Eight days later, and two days after finishing the cycle of methylprednisolone, the headache worsened, became diffuse and persisting, and was longer modified by postural changes. This was associated with psychomotor slowing and, the day after, a partial epileptic status. Magnetic resonance imaging showed an alteration in the signal corresponding to the sagittal superior, transverse and sigmoid sinuses, indicative of venous thrombosis. The potential role of lumbar puncture, steroid treatment and other associated risk factors, and the importance of considering modifications in post-puncture headache as a condition which needs specific neuroradiological examinations are discussed. Received: 19 October 2000 / Accepted in revised form: 9 January 2001