Epidemiological trends of tetanus from East Delhi, India: a hospital-based study

OBJECTIVE

To study the demographic profile, prognostic indicators, and mortality of tetanus patients and treatment outcomes following intramuscular anti-tetanus immunoglobulin (ATG) alone or combined intrathecal and intramuscular ATG.

DESIGN

Retrospective study.

SETTING

Inpatients from a tertiary care hospital.

SUBJECTS

One hundred children under 12 years of age diagnosed with tetanus and admitted from January 2003 to December 2007 were included in the study.

METHODS

Case records of patients with neonatal tetanus (n=30) and post-neonatal tetanus (n=70) were evaluated retrospectively. The diagnosis of tetanus was based on World Health Organization (WHO) criteria. The outcomes of patients treated with either intramuscular ATG or both intrathecal and intramuscular ATG were separately compared in the neonatal and post-neonatal groups.

RESULTS

Our study revealed difficulty in feeding, trismus, spasms, rigidity, and opisthotonus posturing as the predominant clinical manifestations. The survival rate for children receiving tetanus immunoglobulin by the dual route was significantly higher than for children receiving the immunoglobulin via the intramuscular route. Seizures and tremors were poor prognostic factors associated with tetanus.

Tetanus: a diagnostic challenge in the Western world

Tetanus is a very serious neuromuscular disease caused by a powerful exotoxin, tetanospasmin, from the Clostridium tetani bacillus. Its incidence in the developed world has diminished considerably since the introduction of primary vaccination. Tetanus is diagnosed clinically, through recognition of the characteristically inducible muscle spasms. Three clinical forms described in adults are generalised, localised and cephalic tetanus. Management of tetanus aims at removing the source of tetanospasmin, neutralising circulating toxin, and providing adequate supportive care for muscle spasms, respiration and autonomic instability. Tetanus is a forgotten disease in developed countries since many practicing primary care physicians have not seen a single case in their career. We present a case of tetanus and review briefly the pathogenesis, clinical features and therapy in order to educate the internist in recognising and adequately treating this disease.

Case-fatality of adult tetanus at Jimma University Teaching Hospital, Southwest Ethiopia

BACKGROUND

Tetanus remains a major health problem in Ethiopia like in most other developing countries.

OBJECTIVES

To assess the clinical presentation, complications and outcome of tetanus patients.

METHODS

In this retrospective study, patients (age > 13 years) who were admitted to Jimma University Teaching Hospital from 1996 to 2009 were included.

RESULTS

Data from 171 patients were analyzed (129 males, 42 females, mean age 33 years). The mean hospital stay for patients discharged cured and deceased was 21.5 ± 12 and 6.5 ± 6.7 days, respectively. None of our patients was immunized for tetanus. Tracheostomy and mechanical ventilation (MV) was done in 10.5% and 11 %, respectively. The case-fatality was 38%. The mean annual admission and case-fatality increased over the study period from 9 to 20.5 and from 21 % to 51%, respectively. Establishment of intensive care unit (ICU) did not improve mortality due to infrequent tracheostomy and MV.

CONCLUSIONS

The case-fatality was high like in most other studies and the majority of patients died in the first few days indicating that adequate respiratory support was not given. Establishment of ICU did not improve mortality. Tetanus can be prevented by vaccination and if it occurs it needs well equipped ICU.

[Dysfunction of multiple cranial nerves in cephalic tetanus--case report]

A 77-year-old man non-immunized to tetanus suffered head trauma on the right side when he tumbled from a height of approximately 2m. Five days later, he experienced difficulty in opening his mouth and developed right ptosis. He was referred to our hospital 2 days post-ictus. The patient suffered trismus, and developed right Horner's syndrome with in a week. Symptoms due to multiple cranial nerve palsies were observed: right inferior oblique muscle weakness, reduced right corneal reflex, right facial palsy, dysphagia, and abnormal tongue movements. Neuroimages (computed tomography, magnetic resonance imaging, and angiography) of the basal skull and internal carotid arteries revealed no abnormalities. From the symptoms associated with his infected head wound and clinical follow-up, we suggested that he had cephalic tetanus. We subsequently conducted the following treatments: debridement of the wound, intravenous infusion of antitetanus human immunoglobulin (AHI), intrathecal AHI infusion, and systemic administration of benzylpenicillin. His condition improved with these treatments, and without any complications such as autonomic nervous system dysfunction or classical tetanic spasms. This case suggests that we should consider the possibility of cephalic tetanus when we observe a patient with cranial nerve palsy associated with injury.

[Anti-rabies measures by the Infectious Disease Prevention Service at the "La Sapienza" University of Rome in the years 2005-2007]

Antirabies service activities of the Infectious Diseases Prophylaxis Centre of the Sapienza University of Rome during the period 2005-2007. Authors analyzed data, of antirabies activity, from 3206 patients treated at the Infectious Diseases Prophylaxis Centre of the University of Rome "La Sapienza" during the period 2005-2007 Dogs were responsible for most bites (92.1%). All patients went first to the Emergency Room where tetanus prophylaxis was administrated only with specific immunoglobulins (51.5%): to such patients we suggested to implement prophylaxis with vaccination. For other patients (19.4%) we prescribed only vaccine tetanus prophylaxis. Antirabies vaccine (PCEC) has been injected in 604 patients (18.8%). Rabies immunoglobulins have been prescribed only to 11 (0.4%) patients that were bitten during travel to Asia or Africa (0.4%). The authors emphasize the opportunity to reduce the administration of anti-tetanus immunoglobulin in Emergency Room by a deeper evaluation of patient's immunity; moreover the authors confirm a clear quantitative reduction of prophylactic interventions against rabies in Italy.

[Influence of preliminary vaccination with tetanus antitoxin on hemodynamic restoration in patients after hemorrhagic shock at thoracic surgery]

Electrocardiographic and echocardiographic parameters were studied in 364 patients admitted to the department of thoracic surgery of Bashkirian Medical University clinic in 1997-2006. The patients had hemorrhagic shock due to acute traumatic blood loss or long operative intervention with massive hemorrhage. It was found that preliminary vaccination with tetanus antitoxin improves a course of posthemorrhagic period, hemodynamic restoration and survival of the patients.

[Tetanus vaccination in the accident and emergency department]

While tetanus is a rare disease in industrialized countries, this infectious disease is still responsible for up to 1,000,000 deaths per year in the developing world. In Germany, the introduction of a country-wide vaccination program (STIKO) has led to a decrease in the frequency of tetanus infection from 115 cases per year in the 1960s to fewer than 15 cases per year in the years from 1990 to 2000. In spite of all the treatment now available, tetanus infection still has a lethal outcome in up to 40% of cases. The Robert-Koch Institute recommends active or passive vaccination depending on the wound classification and the patient's current vaccination status. Since when patients have multiple trauma the emphasis while they are being treated for shock is on stabilisation and diagnosis, there is a real risk of underestimating the size and the level of contamination of existing wounds. Since it is not possible to ascertain the patient's vaccination status in most cases, we recommend simultaneous immunization of polytraumatized patients with skin lesions using Tetanol-Tetagam early in the course of the diagnostic procedures while the patients are still in the emergency room.

Improving tetanus prophylaxis in the emergency department: a prospective, double-blind cost-effectiveness study

BACKGROUND

The choice of tetanus prophylaxis for patients with wounds depends on obtaining their vaccination history, which has been demonstrated to be unreliable. Use of a rapid immunoassay (Tétanos Quick Stick, the TQS), combined with knowledge of certain demographic characteristics, may improve the evaluation of tetanus immunity and thus help to avoid inadequate prophylactic measures and reduce costs.

OBJECTIVES

To evaluate the contribution of the TQS in the choice of tetanus prophylaxis and to perform a cost-effectiveness analysis. The final aim was to define the place of the TQS in a modified algorithm for assessment of tetanus immunity in the emergency department.

METHOD

In this Belgian prospective, double-blind, multicentre study, 611 adult patients with a wound were included; 498 (81.5%) records were valid. The TQS test was performed by a nurse before the vaccination history was taken and the choice of prophylaxis was made, using the official algorithm (Belgian Superior Health Council), by a doctor who was unaware of the TQS result.

RESULTS

The prevalence of protective anti-tetanus immunity was 74.1%. Immunity was lower in older patients and in female patients. The TQS was a cost-effective tool for patients presenting with a tetanus-prone wound and considered from the vaccination history to be unprotected. Use of the TQS would have improved management in 56.9% (95% CI 47.7% to 65.7%) of patients by avoiding unnecessary treatments, leading to a reduction in the mean cost per patient (10.58 euros/patient with the TQS versus 11.34 euros/patient without). The benefits of the TQS use were significantly greater in patients <61 years old: unnecessary treatment would have been avoided in 76.9% (95% CI 65.8% to 85.4%) of cases and the mean cost per patient reduced to 8.31 euros.

CONCLUSION

In selected patients, the TQS is a cost-effective tool to evaluate tetanus immunity. An algorithm is proposed for ED assessment of tetanus immunity integrating age and the TQS result.

Retrospective Study of Tetanus in 20 Dogs: 1988–2004

The case records of 20 dogs that were treated for tetanus between 1988 and 2004 were reviewed. Young, large-breed dogs were most commonly affected. Twelve dogs had a likely source of infection identified. All dogs were treated with intravenous antibiotics and supportive care, such as muscle relaxants and sedation for muscle tremors and rigidity. Sixteen dogs received tetanus antitoxin. The mortality rate was 50%. Complete recovery in survivors required approximately 1 month.

Intrathecal tetanus immunoglobulins in the management of tetanus

OBJECTIVE

To study the clinical profile, treatment and outcome of tetanus in children treated with intrathecal tetanus immunoglobulin. (TIG) METHODS: Retrospective analysis of hospital records of tetaus cases admitted to the pediatric ICU during the five year period between 1999 to 2004 was done.

RESULTS

There were 66 cases of tetanus treated with intrathecal TIG. Children below 5 years formed 53% of cases and 47% were above 5 years. Totally unimmunized children constituted 82% of cases and 18% partially immunized children. The portal of entry was otogenic in 58% of cases and injury in30% of cases. The common complications observed included thrombophlebitis, aspiration pneumonia, laryngospasm and autonomic system involvement. There were no complications specific to intrathecal administration of TIG. The mortality due to tetanus was 9%.

DISCUSSION

Mortality and morbidity due to tetanus was less in the present study compared to other centers where TIG is given intramuscularly.

CONCLUSION

Intrathecal TIG is effective in the treatment of mild and moderate tetanus. Randomized controlled clinical trials are needed to evaluate the efficacy of intrathecal TIG in the management of severe tetanus.

Intrathecal vs. intramuscular administration of human antitetanus immunoglobulin or equine tetanus antitoxin in the treatment of tetanus: a meta-analysis

BACKGROUND

Mortality caused by tetanus is still a serious health problem in developing countries. Apart from immunization, early treatment with equine antitetanus serum (ATS) or human tetanus immunoglobulin (TIG) is the real treatment that can avoid death. On pathophysiological grounds intrathecal administration would be preferred because of high concentrations of the antiserum in cerebrospinal fluid and thus around the nerve roots. Many studies concluded on its effectiveness whereas others did not find any superiority of this method. However, most of those studies were not random and/or had no sufficient weight.

OBJECTIVE

To assess the efficacy of intrathecal therapy with ATS in neonates and adults.

METHODS

Meta-analysis: Clinical trials were identified by searching Medline, the Cochrane library and Current Contents. Published randomized studies in English or French comparing intrathecal therapy and intramuscular therapy (IMS) were analysed with Revman, R, and Stata software. Treatment effects were evaluated by relative risk (RR) between intrathecal vs. intramuscular administration.

RESULTS

A total of 942 patients were included in 12 trials, 484 in the intrathecal group and 458 in the intramuscular one. The combined RR of mortality for intrathecal vs. IMS was 0.71 (95% CI, 0.62-0.81). The superiority of intrathecal therapy also emerged when the analysis was performed in subcategories of both adults and neonates and for high and low dose of intrathecal serotherapy. Intrathecal administration of ATS or TIG is more beneficial than intramuscular administration in the treatment of tetanus.

An unusual localization of snakebite treated without antivenin: case report

Snakebite is one of the commonest causes of morbidity and mortality in tropical regions. This paper focuses on the medical treatment of a patient who had been bitten by a snake on the vertex of his head. It was a severe envenomation with ensuing marked edema associated with coagulation abnormalities. Although the antivenin was extensively sought in various medical centers, it was unavailable. We observed and treated the patient, with special regard to his hematological findings and potential complications. Specifically, tetanus prophylaxis and intravenous fluids were administered, and the wound was cleaned and dressed. Fresh frozen plasma was also administered. The patient responded well, and was discharged on the fourth day of his admission, without any sequelae.

Camel bite: an unusual type of head injury in an infant

Small children are predisposed for animal bite wounds in the craniofacial region, because the likelihood of sustaining trunk and extremity injuries increases with height. The clinical picture of animal bite wounds is highly variable. Depending on the dental anatomy of the biting animal, such wounds may range from sharp stitch wounds to extensive lacerations with or without tissue loss. The ears and nose are injured most often because of their exposed location. Nevertheless, depressed skull fractures with injury to the dura and to the brain parenchyma are extremely rare. This case presentation describes the rare case of a craniocerebral camel bite wound (Lackmann stage IV B) in a 3-year-old girl that required immediate neurosurgical management. The neurosurgical management, choice of antibiotic, postoperative treatment, and clinical course are discussed, and background information on camel bite injuries is given.

Randomised controlled trial of tetanus treatment with antitetanus immunoglobulin by the intrathecal or intramuscular route

OBJECTIVE

To evaluate the effect of intrathecal therapy with human antitetanus immunoglobulin on clinical progression of and mortality from tetanus.

DESIGN

Randomised controlled trial.

SETTING

Intensive care unit of a university hospital, Pernambuco, Brazil.

PARTICIPANTS

120 patients with tetanus allocated to antitetanus immunoglobulin by either the intrathecal and intramuscular route (n = 58) or the intramuscular route (n = 62; control group).

MAIN OUTCOME MEASURES

Clinical progression of disease, duration of hospital stay, duration of occurrence of spasms, complications, respiratory infection, respiratory failure or mechanical ventilation, duration of respiratory assistance, and mortality.

RESULTS

Patients in the treatment group showed a better clinical progression than those in the control group (chi2 for trend 7.752, P = 0.005; difference in proportion of patients with improvement 20%, 95% confidence interval 4% to 35%). The duration of occurrence of spasms, hospital stay, and respiratory assistance were all shorter in patients the treatment group: respectively, 14.96, 0.0001 (difference in proportion of patients with spasms lasting < or = 10 days 36%, 18% to 55%); 4.56, 0.03; and 6.56, 0.01 (proportion of patients who needed assistance for < or = 10 days 69.2% in the treatment group and 30.8% in the control group (difference 38%, 12% to 65%)).

CONCLUSION

Patients treated with antitetanus immunoglobulin by the intrathecal route show better clinical progression than those treated by the intramuscular route.

Characteristics of venomous snakebites in Herzegovina

AIM

To investigate the degree to which primary and secondary care physicians in the Herzegovina region follow the protocols recommended in the literature for treatment of patients bitten by a venomous snake.

METHOD

We retrospectively examined hospital records of all patients treated at the Department of Infectious Diseases, Mostar University Hospital, for intoxication following a venomous snakebite in the 1997-2002 period. The data on demographic characteristics, clinical presentation, therapy protocols, and final outcome were collected for each patient.

RESULTS

From 1997 to 2002, 43 men (60.5%) and 28 women (33.4%) were treated at our Department for a venomous snakebite. The greatest number of snakebites occurred in persons older than 60 (chi-square=12.44, df=3, p=0.006) and during the summer months (chi-square=8.12, df=1, p=0.004). More than half of the patients (38, or 53.5%) were bitten on the hand. The commonest symptoms and signs of the local envenomation were pain (97.1%) and swelling (87.3%), whereas general symptoms were tachycardia (39.4%), nausea (33.8%), and vomiting (28.1%). Also, 56 patients (78.8%) experienced anxiety and fear. The primary care protocol recommended in the literature (antibiotics, tetanus antitoxin, snakebite antiserum, and immobilization) was given to only 2 patients (2%). However, there were no lethal outcomes.

CONCLUSION

Development of a precise evidence-based protocol for prehospital management of venomous snakebite is needed in the Herzegovina region, followed by educational efforts targeted at primary care physicians.

The stabbed wounds as a cause of injuries of different parts of the body

Only 171 patients with injuries that were caused as a result of stubbing treated in Jan Bozy Regional Hospital in Lublin in the years 1997-2000, were analysed. The injured people were mostly men aged 21-40. 142 people were treated in outpatient clinic, and 29 were hospitalized. The medium ime spent in hospital was about 7 days. Eleven of the hospitalized patients were operated on immediately. On the basis of the analysis of the research results it was estimated that: 1. The most frequent tool ausing stabbed wounds in the case of hospitalized patients was a knife, and in outpatients--a nail. 2. The circumstances in which the stabbed wounds were most often appearing were accidents (out-patient clinic) and in the case of hospitalized patients assaults by unknown culprits. 3. The most frequent localization of the stabbed wounds among the hospitalized patients was chest and among the outpatients an arm or a leg.

Tetanus experience in a public hospital in Western Saudi Arabia

OBJECTIVE

Tetanus although rare, has not been eradicated and continues to present from time to time. Early diagnosis and management may be life saving. This study aims to evaluate all patients admitted with clinical diagnosis of tetanus in King Abdul-Aziz Hospital Jeddah, Kingdom of Saudi Arabia over the last 3 years.

METHODS

All patients admitted with clinical diagnosis of Tetanus in King Abdul-Aziz Hospital and Oncology Center from January 2000 through to December 2002 were retrospectively reviewed and data was analyzed to determine the demographic features, clinical details, management, and outcome of treatment.

RESULTS

A total of 11 patients were admitted during this period. All patients were diagnosed in emergency room by clinical examination. Their ages ranged from 22-68 years. The immunization status of these patients was unknown. All of them were males with 4 of them being injection-drug users. Eight patients had a definite history of injury mainly involving the lower limbs. The incubation period ranged from 5-30 days. Nine patients required mechanical ventilation for a period varying from 2-4 weeks. All patients received Tetanus Immunoglobulin with a dose ranging from 500-3000 unit. The spasms were mainly controlled by diazepam infusion with a maximum dose of 480mg/day. Magnesium sulphate was used in 6 patients to control spasms and autonomic dysfunction. Metronidazole was used in addition to benzyl penicillin in 9 patients. Out of the 11 cases 10 were discharged home and only one patient died 6 days after admission.

CONCLUSION

Tetanus is still a problem in developing countries. It is a potentially fatal disease, without early medical intervention. Primary immunization and scheduled booster immunization are important preventive measures that have greatly reduced the incidence of tetanus.

Serological survey of immunity to tetanus in adult population of Northern Halkidiki, Greece

BACKGROUND

Despite the implementation of the obligatory anti-tetanus vaccination, the tetanus cases in Greece are not eliminated. Because of the increased possibility of Clostridium tetani infection of the Northern Halkidiki population--like any other rural population the evaluation of the immunity to tetanus in the area is considered necessary.

METHODS

The tetanus antitoxin levels were determined using the enzyme-linked immunosorbent assay (ELISA) in 405 healthy adult individuals attending the health center for routine laboratory tests.

RESULTS

64.4% of the studied population was found protected (tetanus antitoxin levels > or = 0.1 IU/ml). The percentage of protected people decreased as age increased from 83.3% in the 21-30 to 51.2% in the > 60 age group. 82.1% of the tested males and 52.6% of the tested females had tetanus antitoxin levels > or = 0.1 IU/ml (p < 0.0001). The percentages of immune men (100-66.2% in various age groups) were found higher than those of women (80.8-35.5% in the respective age groups). The geometrical mean titres (GMTs) were 0.44 in all of 261 immune people, 0.53 in 133 immune men and 0.37 in 128 immune women (p = 0.0021).

CONCLUSION

The proportion of protection among men over 60 and women over 30 years old is inadequate, the levels of tetanus antitoxin decline with age and a significant difference was found between the proportion of protection of males and females.

[Tetanus in a young unvaccinated girl after a fall in the street]

A 4-year-old girl developed tetanus after she had fallen on the street a week before. She had never been vaccinated and despite pressure from the family practitioner, the parents refused to allow her to be given human anti-tetanus immunoglobulin as a matter of principle after the wound had been stitched. Seven days later she was admitted to hospital with trismus and risus sardonicus. Upon initial treatment with human anti-tetanus immunoglobulin and penicillin, and subsequently metronidazole, her clinical condition deteriorated with opisthotonus and life-threatening respiratory insufficiency, upon which she was moved to the intensive-care department where she was intubated and mechanically ventilated for two weeks. Finally she made a complete clinical recovery. Thanks to the extensive national vaccination program, tetanus has become a rare disease in the Netherlands. However, the very serious course and possible fatal outcome warrant a keen attitude and adequate treatment.

Tetanus: a case report, epidemiology review and recommendations for immunization compliance

Tetanus is a forgotten disease in the United States since many practicing primary care physicians have not seen a case of the disease in their career. A 73-year-old woman presented with dysphagia two weeks after she obtained a superficial laceration while gardening. Within days, the jaw spasms and subsequent respiratory compromise that necessitated five weeks of ventilator support revealed the devastation that this disease can cause. Tetanus spores are found in high concentration in the soils of rural areas, especially where farm animals have grazed. Populations most at risk in the U.S. include under- or non-immunized elderly and immigrant populations. Barriers to immunization include patient and physician non-compliance, missed opportunity for immunization and concern over vaccine side effects. Targeting high-risk groups will enable primary care physicians to be more proactive in providing immunization, and thus in preventing prevention this disease.

[A case of cephalic tetanus presenting with opisthotonus]

We report a case of cephalic tetanus presenting with opisthotonus. A 49-year-old man was admitted because of repeated convulsions. The patient was a garbage truck driver known to be alcoholic, who fell down to suffer an injury of the left face two days before the onset of convulsion. Intravenous administration of diazepam and phenytoin partially relieved the convulsions. Anti-tetanus human immuno-globulin was also administered despite absence of typical clinical sign. Six hours later, however, the patient became unable to open the mouth, i.e. lockjaw developed, and the diagnosis of tetanus was made. Additional anti-tetanus human immunoglobulin of 3,000 units and 4,500 units on the next day rapidly relieved the lockjaw, convulsion, and general muscle rigidity without sequalae. The patient showed transient bilateral facial palsy and rotatory nystagmus during the course. Cephalic tetaus is characterized by a history of an injury of the head and a short latency before developing generalized tonic convulsion or opisthotonus. While a typical case presents with lockjaw, our case presented with opisthotonus, presumably because of early systemic lymphatic spreading of tetanus toxin. Early diagnosis and treatment is important to prevent generalized convulsions which are more frequent and sometimes lethal in cephalic tetanus than the common form.

A randomized double-blind sham-controlled study of intrathecal human anti-tetanus immunoglobulin in the management of tetanus

BACKGROUND

Tetanus is a major cause of mortality and morbidity in developing countries. Various modalities of treatment to prevent progression of the disease and alter its outcome have been tried. This study was designed to evaluate the role of intrathecal human anti-tetanus immunoglobulin (TIG) in the management of tetanus.

METHODS

Thirty-six adult patients presenting to an university-affiliated teaching hospital were stratified based on the severity of disease into mild and severe disease, and subsequently randomly allocated to receive either 250 i.u. of TIG intrathecally or a sham procedure mimicking the lumbar puncture.

RESULTS

In mild tetanus, TIG administration significantly retarded the rate of progression (p = 0.05), reduced the duration of hospital (p = 0.01) and intensive care unit stay (p = 0.05), need for tracheostomies (p = 0.03) and the dose of sedatives required for control of spasms (p = 0.01). In mild tetanus, the mortality rates were 20% and 30% in the treated and control groups, respectively.

CONCLUSION

We suggest that TIG is useful in reducing the morbidity, progression of disease and mortality in patients presenting with mild tetanus.

[Therapeutic problems in tetanus--presented via a case report]

This is the case presentation of a forty-year old female patient, who had incurred a tetanus infection as a result of intravenous drug abuse. Clostridium tetani could be detected repeatedly in abscesses caused by injections. The patient had to be put on continuous relaxation, sedation and artificial respiration for 42 days. Besides the usual intensive care regimen, a high-dose antitoxin therapy was initiated. The areas of abscesses had to be eradicated surgically several times. With the exception of a thrombus of the vena cava superior (without haemodynamic consequences) and a pneumonia, the further course was without any other serious complications. After seven months of hospitalisation the patient could be dismissed at "restitutio ad integrum". The known immunosuppressive effect of a high dosed tetanus antitoxin therapy could be confirmed by the patient's antitoxin titre course. Repeated active immunisation attempts to produce a sufficient endogenous antitoxin titre failed. The existing therapeutic uncertainties regarding the dosage of the tetanus antitoxin therapy, the titre control and the proper antibiotic treatment are described.

[Tetanus in Libreville: hospital analysis of 30 cases]

We investigated 34 cases of tetanus in patients younger than 75 years old in Libreville. We found that the incidence of tetanus was 8 cases for every million people. The disease mostly affected people younger than 50 (85%). Only two neonatal tetanus cases were reported. The death rate was 74%, despite the availability of intensive care and respiratory assistance. We stress the benefits of tetanus immunization, which must be continued, and suggest the use of intrathecal serotherapy for the cure of tetanus in Libreville.

Fentanyl therapy controls autonomic hyperactivity in tetanus

This report describes the use of fentanyl in severe tetanus after failure of established therapeutic modalities (heavy sedation, neuromuscular blockade and ventilation). Cardiovascular instability accompanying severe tetanus secondary to sympathetic overactivity and raised catecholamine levels is associated with a mortality of over 50%. In this clinical situation, a variety of drugs with a primary or secondary action on the cardiovascular system has been used with varying success. The following case of severe generalised tetanus in the adult associated with autonomic hyperactivity, was successfully managed with large doses of intravenous fentanyl.

[Effect of administration of blood products on the course of tetanus antibody concentration in immuno-incompetent patients]

OBJECTIVE

Collecting of data for immunoprophylaxis of tetanus in immunodeficient patients via administration of blood products.

DESIGN

Prospective single case studies.

SETTING

Clinical therapy in a department of hematology with continuous determination of tetanus antibody concentrations in patients' sera and administered blood products with an enzyme immunoassay.

PATIENTS

3 patients with acute myeloid leukemia (FAB classifications M1, M3, M4).

INTERVENTIONS

Regular administration of blood products due to clinical therapy.

RESULTS

After administration of about 4,000 IU tetanus antitoxin i.v., serum concentration is increasing by 1 IU/ml. Half life in serum amounts to 7 days. Protection lasts therefore up to 6 weeks.

CONCLUSIONS

Immunodeficient patients may receive a medium-term effective protection against tetanus after selection of suitable blood products. This method is interesting also for prophylaxis of postoperative tetanus in immunocompetent patients.

Tetanus in the horse: a review of 20 cases (1970 to 1990)

The case records of 20 horses with tetanus referred to the Ontario Veterinary College-Veterinary Teaching Hospital between 1970 and 1990 were reviewed. The fatality rate was 75%. There was a strong association with previous vaccination and survival (P = .03). Most of the animals had been injured an average of 9 days (range 2 to 21 days) prior to development of clinical signs. Hyperesthesia and prolapse of the third eyelid were the most common clinical signs. Treatment regimens varied during hospitalization; however, all horses received parenteral penicillin, tranquilizers, tetanus toxoid, and antitoxin. Five of the nonsurviving animals were given intrathecal tetanus antitoxin. One animal had seizures as a complication of intrathecal treatment. The prognosis was best for horses that (1) had been vaccinated prior to the injury, (2) responded to the phenothiazine tranquilizers, and (3) did not rapidly (over 24 to 48 hours) become recumbent. Considering the species susceptibility, potential for contaminated wounds, and the increased survival of vaccinated horses, yearly revaccination is recommended.

Haemodynamic studies during the management of severe tetanus

Detailed invasive haemodynamic studies were performed in 27 of 32 patients with severe tetanus. Nineteen had severe uncomplicated tetanus and eight had associated major complications, chiefly infection and pulmonary complications. The results were compared with those obtained from 15 healthy male volunteers who served as controls. There were two deaths in 32 patients (mortality 6.25 per cent). Severe tetanus without major complications was characterized by a high output hyperkinetic circulatory state with tachycardia (heart rate 131 (19.2) beats/minute), increased stroke volume index (43.1 (10.7) ml/m2), increased cardiac index (5.48 (0.94) l/min/m2) and a normal left ventricular stroke work index (60.5 (15.9) g/m/m2). Volume loading demonstrated a significant haemodynamic response and increased vascular capacitance. Even so the maximum percent rise from baseline values of these indices after volume load was significantly higher in controls (p < 0.001). Autonomic cardiovascular disturbances affected both sympathetic and parasympathetic activity. Hypertension and tachycardia alternating with hypotension and bradycardia were related to sudden fluctuations in systemic vascular resistance. Our studies suggested some degree of myocardial dysfunction in patients with severe uncomplicated tetanus. The haemodynamics of severe tetanus were masked and altered by complicating infection, pneumonia, and atelectasis.

Horner's syndrome in severe tetanus

A 66 year old man was admitted with a left Horner's syndrome, and trismus due to tetanus. Three days later he had respiratory arrests, classical tetanic spasms and was ventilated. He had associated severe autonomic dysfunction, tachyarrhythmias, hypotension, sweating and constipation. There was complete resolution of the left Horner's syndrome with recovery from tetanus.

Intrathecal therapy in tetanus. A meta-analysis

OBJECTIVE

--To assess the efficacy of intrathecal therapy with tetanus antibody (antitetanus equine serum or human tetanus immune globulin) in neonatal and adult tetanus using meta-analytical techniques.

DATA SOURCES

--Clinical trials identified by searching MEDLINE and by reviewing bibliographies of published articles.

STUDY SELECTION

--Studies in English with concurrent controls treated without intrathecal therapy.

DATA EXTRACTION

--Data were extracted by one author and verified by the second; conflicts were resolved by discussion.

DATA SYNTHESIS

--No major treatment effect was found in neonatal tetanus when all studies were considered. A benefit was suggested for antitetanus equine serum in adult disease, but this finding should be accepted with caution. Subgroup analyses were limited in power. Methodological difficulties in neonatal and adult trials were common and safety has not been established.

CONCLUSIONS

--Intrathecal therapy for tetanus with either antitetanus equine serum or human tetanus immune globulin is not of proven benefit and should only be given in the context of well-designed, controlled trials.

[Intrathecal serotherapy in tetanus. Review]

Devido à importância do tétano nos países em desenvolvimento, foi feita uma revisão da literatura recente abordando aspectos históricos e bases fisio-patológicas do uso da soroterapia intratecal no tratamento do tétano. Discute-se principalmente a eficácia dessa terapêutica envolvendo o uso da antitoxina heteróloga e homóloga, associada ou não à antitoxina e a corticosteróides por via sistêmica. São abordadas também as complicações do uso da antitoxina por via intrarraquideana que são, em geral, leves e transitórias. As tentativas de introduzir definitivamente a administração intratecal da antitoxina tetânica, na terapêutica do tétano, são precoces, uma vez que estudos existentes até o momento tem resultados contraditórios e muitas variáveis envolvidas.

Tetanus neonatorum--experience with intrathecal serotherapy at Muhimbili Medical Centre, Dar es Salaam, Tanzania

In an attempt to lower the mortality rate of neonatal tetanus a study was undertaken to determine whether intrathecal serotherapy influences mortality from this disease. Sixty-six babies with tetanus neonatorum were studied. The mortality rate among babies who received intrathecal anti-tetanus serum (ATS) was 45% compared with 82% in the control group given intramuscular ATS (P congruent to 0.002). Infants who received intrathecal ATS also had fewer complications than controls (P less than 0.001) and the duration of hospital stay for the survivors was 19.3 days compared with 28.7 days for the control group (P less than 0.05). It is concluded that intrathecal ATS is superior to intramuscular ATS in the treatment of neonatal tetanus.