197 resultados para Centro Hospitalar do Porto
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Introduction: Rhinoscleroma is a rare, chronic, granulomatous disease that most frequently affects the upper respiratory tract, especially the nasal cavity and sometimes extends through the lower respiratory tract. Is associated with Klebsiella rhinoscleromatis, which is endemic in certain geographic regions namely Central America. The pathogenesis and risk factors remain unclear. Clinical case: We report a five years Old Portuguese boy, previously healthy, brought to the Emergency Department with epistaxis, without other accompanying signs or symptoms. The Otorhinolaryngologist (ORL) performed rhinoscopy and identified an intranasal bleeding mass. The MRI revealed an intranasal mass with extension to the ethmoid bone sinus, and performed biopsy. The histopathology was vital, making the diagnosis of Rhinoscleroma. The child had traveled abroad for the first time on vacations a year before to Dominican Republic. The bacteriologic exam identified a Klebsiella spp. sensible to the association of amoxicillin and clavulanic acid. Blood test performed excluded association of immunodeficiency. Since it’s a rare disease genetic study are under course. Monthly evaluation by ORL and pediatrician was performed which documented progressive reduction until total disappearing of the macro and microscopic lesion, and negative bacteriologic exam. Six months of antibiotic therapy were completed without any known secondary effects. The child remained asymptomatic up to the last visit, 3 months following treatment and has shown no evidence of recurrence. Conclusion: Globalization and free transit of people to areas far from origin countries here some rare diseases are endemic brings a new challenge to modern medicine. Sometimes vacations bring more than memories.
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Background: Children with Gaucher disease type I (GD1) are usually treated with enzyme replacement therapy (ERT) at a dose of 30-60U/Kg/2W. Recently, due to an acute shortage supply of imiglucerase, a reduced dose or a reduced infusion frequency was recommended. Objective: To evaluate the effects of a reduced infusion frequency of imiglucerase over 15 months of follow-up. Patients and Methods: Three patients (1M:2F) were treated with ERT since a median age of 7 years (range 5-12). Only one had bone crisis and Erlenmeyer deformations. Median duration of treatment before dose reduction was 3 years (range 1-8). ERT resulted in total regression of symptoms, normalization of hematological parameters and progressive improvement of chitotriosidase in all patients. In August 2009 infusion schedule was changed from a media 45U/Kg every two weeks to every four weeks. Results: All patients remained asymptomatic and with no major change on hematological parameters except for the patient with bone crisis who presented subnormal platelet count. All patients showed an upward trend in chitotriosidase values. Comments: Although a longer follow-up is needed, is probable that even children completely stabilized can probably not be kept on lower doses even though the reduction of frequency of the infusions represent a lower social burden.
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Appendiceal mucocele is a rare entity, occuring in < 1% among appendicectomies, with a female predominance 4/1 (F/M) and a mean age of more than 50 years. The preoperative diagnosis is difficult; in most cases, it´s an intraoperative finding. In such work, we describe the two clinical cases occurring in last 10 years in our Department. Case 1 - 56 years old, posmenopausal, referred to our Department (02/2004) because an asymptomatic right adnexal septated cystic image, 53x48mm, with hipovascularized septa and a vascularised capsule with low flow resistance (IR 0,57). CA 125 elevated (71,3 U/mL).Exploratory laparotomy: an ovary increased, with a gelatanious consistency and an appendicular enlargement. Extemporaneous examination: a pseudomixoma peritonei, associated with a mucinous appendicular and an ovary tumor. It was performed a radical surgery. The histo-pathological analysis showed a mucinous cystadenoma of the appendix with peritoneal mucinous dissemination involving the ovary. Expectant attitude since the surgery, without clinical and imaging signs of recurrence. Case 2- 62 years old posmenopausal and asymptomatic woman, with a large adnexal mass detected on routine pelvic ultrasound: heterogeneous, 94x84mm without vascularisation signs in its interior. CEA was elevated (41,47U/ml). Exploratory laparotomy (02/2010): enlarged appendix and macroscopically normal pelvic organs. An appendicectomy was performed. The histo-pathological analysis showed a 10cm mucinous cystadenoma of the appendix and signs of localized (visceral peritoneal surface) pseudomyxoma peritonei. Currently she’s clinically well, in an expectant attitude. Despite mucoceles of the appendix are rare, they should be considered in women presenting with abnormal quadrant masses.
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Objectives: To assess induced labor-associated perinatal infection risk at Hospital D.Estefânia from January to June of 2010 at Hospital de D. Estefânia’s delivery rooms, reviewing the indications for inducing labor as well as the techniques used. Material and Methods: Performing an historical prospective study searching the clinical processes as well as the mother and newborn’s computer database from January to June of 2010. An exposed and an unexposed group were created; the first group comprises pregnant women and their newborns whose labor was induced. The unexposed group is constituted by newborns and pregnant women whose labor was spontaneous. Labor induction was performed using intra-vaginal prostaglandins in women who didn’t start it spontaneously; perinatal infection was defined either clinically or using blood tests. The gestational age was ≥ 37 weeks for both groups. 19 variables were studied for both groups. Results: A total of 190 mother-newborn pairs were included: 55 in the exposed group and 135 in the unexposed group. 3 cases of perinatal infection were reported, two in the exposed group and one in the unexposed group. Preliminary data resulted in a perinatal infection rate of 3.6% in the exposed group and 0.7% in the unexposed group; preliminary data suggest that the risk of perinatal infection may be increased in up to 5-fold when labor is inducted. Conclusions: A larger series of patients and a multivariable analysis using logistic regression are both necessary in order to perform a more thorough assessment of labor induction’s role in perinatal infection risk. One must also try to distinguish labor inducing- and clinical practicesrelated factors.
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Introduction: Hysterectomy is the commonest gynecologic operation, performed for malignant and benign conditions. There are many approaches to hysterectomy for benign disease. Studies comparing the techniques have showed that vaginal hysterectomy has benefits in terms of reduced hospital stay, faster recovery and less operating time. Objective: The purpose of this study is to compare the surgical and immediate postoperative outcomes of Laparoscopic Assisted Vaginal Hysterectomy (LAVH) with those of Vaginal Hysterectomy (VH). Methods: Retrospective descriptive study, comparing two groups of women who underwent LAVH or VH in our department during a 24 months period, from January 2009 to December 2010. The two groups were compared regarding age, vaginal deliveries, previous abdominal surgery, uterine and adnexal pathology, intra-operative and post-operative complications, uterus weight, blood loss and number of days until discharge. Results: In our study 42 LAVH and 99 VH were included, with a patient mean age of 47 and 59, respectively. The most frequent indication for hysterectomy was fibroids (80%) for LAVH and POP(58.6%) for HV. In LAVH group 47.6% of patients had previous abdominal surgery, vs 28.2% in VH group. The medium operative time was 167 minutes for LAVH vs 99 minutes for HV. The intra-operative complications were one case (2%) of accidental incision of rectum in LAVH, and one bladder incision in the VH (1%). There were 3 conversions to laparotomy for difficult technique (7%) in LAVH group. There were no significant post-operative complications for LAVH. In VH group there were 2 cases of haemoperitoneum (2%) and 1 case requiring blood transfusion (1%). The mean time for discharge was 4.23 days for LAVH and 4.46 days for VH. Conclusions: In our study, the main advantage for VH was the reduced operative time. In terms of time to discharge there was no difference between the 2 groups. The main intra-operative complication of LAVH was the risk of conversion to laparotomy, but post-operatively this procedure had fewer complications than VH. In conclusion, LAVH is a safe option for women requiring hysterectomy in cases where VH is anticipated to be technically difficult.
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Precocious puberty, defined as the development of secondary sexual characteristics before the age of 8, often leads to anxiety in patients and their families but also in clinicians searching for the final diagnosis. After adequate investigation, the majority of the cases in girls turn out to be idiopathic. The authors present a case of McCune Albright syndrome in order to call attention to a rare cause of sexual precocity and the value of ultrasound in the evaluation of these situations. 10 years old infant girl admitted in our department due to irregular menstrual bleeding. She experienced a vaginal bleeding by the age of 3 which led to the diagnosis of McCune Albright Syndrome after a complete evaluation. Pubertal assessment revealed a reversed sequence in the remaining events with adrenarche at 5 and thelarche at 8. Hormonal evaluation demonstrated low FSH and LH levels (11,2 and 6,72 respectively) with high estrogen (204). Pelvic ultrasound showed a normal sized uterus (73x 29x32 mm), endometrial thickness of 5 mm and ovaries with several microfollicles and a copus luteum measuring 23 mm in the right ovary. McCune Albright syndrome is a very uncommon cause of sexual precocity that should, however, be suspected in all infant girls who present with vaginal bleeding. It is characterized by a triad: polyostotic fibrous dysplasia, gonadotropin-independent precocious puberty and café-au-lait skin spots. Due to autonomous production of estrogen by the ovaries, ultrasound image of the female reproductive tract is inconsistent with chronologic age. Pelvic ultrasound demonstrates a normal sized uterus with a well defined cervix and clearly identified ovaries with several follicles, similar to adult women of reproductive age. Ultrasonography of the pelvis has also an important role excluding other causes of GnRH-independent precocious puberty conditions like ovarian cysts or tumors.
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Introduction: Toxoplasmosis is caused by Toxoplasma gondii and may be acquired from food or water contaminated with cat feces or by vertical transmission. Severe fetal complications can overcome during pregnancy. There are also rare case-reports of congenital toxoplasmosis from previously immunized pregnant women; usually these women being had prior retinal toxoplasmic lesions. Immunosuppresion is one of the risk factors which accounts for some of these cases. Case report: 30 year-old pregnant woman, OI 2002, brazilian, previously healthy, admitted in Ophtalmology Department because of sudden left eye amaurosis in June, 2010. The fundoscopy revealed retinal scars suggesting previous infections; she was treated with corticoids and spiramycin for ocular toxoplasmosis reactivation. Previous serum analysis (2008) showed immunity to T. Gondii, but in July the IgM was negative and high levels of specific IgG were found (1227UI/mL). The serologic findings were later confirmed by a more accurate laboratory technique which found the IgM to be also positive. An amniocentesis was performed and it was negative for fetal transmission. Clinical and ultrasound follow-up throughout the rest of the gestational period was normal; daily spiramycin intake was maintained. An uneventful term delivery was performed. Neither the newborn’s serum analysis nor the histopathological study of the placenta were positive for congenital infection. Conclusion: Toxoplasmosis reactivation in pregnant women without immunosuppression is rare but is more likely to occur if previous post-infectious retinal scars are present. T. gondii infection is endemic in Brazil, so the geographical origin is important. If risk factors are present, fundoscopy should be performed every three months during pregnancy and one should always be aware of any visual symptoms. If you suspect reactivation, start medical prophylaxis for fetal transmission, perform amniocentesis and regular ultrasound follow-up.
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Introduction: Postmenopausal bleeding is a common complaint from women seen in general practice, although majority of them, will have no major problem. Objective: Study of endometrium in postmenopausal women with suspicious sonographic endometrial changes. Comparison of findings in asymptomatic women and those who reported metrorrhagia. Methods: Consultation of outpatient medical records of 487 women undergoing endometrial study (sonohysterography, hysteroscopy), between January/2004 and July/2010. Patients were subdivided into two groups: women with (G1) and without (G2) complaints of postmenopausal metrorrhagia. Results: G1 and G2 comprises 78 and 409 women, respectively. G1: 23.1% normal uterine cavity, 74.3% benign pathology (majority endometrial polyps) and 2.6% of them endometrial carcinoma. G2: 14.4% normal uterine cavity, 83.7% benign pathology (majority endometrial polyps), 1.4% endometrial hyperplasia and endometrial carcinoma in 0.49%. Conclusion: Postmenopausal metrorrhagia is associated with an increased risk of endometrial malignancy, in relation to asymptomatic, although represents a minority of the population. To highlight the existence of premalignant and malignant pathology in asymptomatic endometrial thickening.
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Introduction: Heterotopic pregnancy (HP) is defined as two gestational sacs simultaneously present in two different locations, being the uterus and the fallopian tubes the more common. Sporadic HP is a very rare condition (1:30,000 pregnancies). With the use of medically assisted reproduction the prevalence is significantly higher(1:7,000). Considering spontaneous pregnancy, HP is associated with risk factors, being prior inflammatory pelvic disease the most common. The clinical presentation is similar to that of ectopic pregnancy or spontaneous miscarriage although it is usually a more late diagnosis. Case report: 25 year-old pregnant woman, OI 0000, previously healthy; admitted at the Emergency Department (ED) with acute pelvic pain mainly at the right iliac fossa and moderate vaginal bleeding confirmed by speculum examination. She was hemodynamically stable and the bimanual palpation was painful; no prior medically assisted reproduction technique had been performed. The haemoglobin value was within normal range and the serum β-hCG was 2,763mUI/mL. The ultrasonography at the ED showed an in uterus gestational sac and another one inside the right fallopian tube; in both gestational sacs cardiac activity was absent. HP diagnosis was then established and the patient was admitted at the Obstetrics Ward for surveillance and ultrasonographic/laboratorial reassessment; complete miscarriage of the uterine pregnancy occurred but methotrexate was necessary for the treatment of persistent tubarian pregnancy. Conclusion: When evaluating a pregnant woman with pelvic pain and vaginal bleeding one should always be aware of several differential diagnosis amongst which HP should be considered. If the patient has in uterus viable pregnancy the treatment of the ectopic concomitant gestational sac should be as conservative as possible; methotrexate should not be used in that situation as it leads to uterine pregnancy miscarriage in about one third of the patients.
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Objectives: Chorionic Vilus Sampling (CVS) has several advantages over amniocentesis: it may be performed at an earlier gestational age, the results are quicker to obtain and there’s a lower miscarriage risk – 1%. However, the higher prevalence of discrepant fetal and vilus sampling material’s karyotype findings is a disadvantage of this technique – 0.5%. This is caused, amongst other causes, by placental mosaicism which consists of two genetically different cell lines. There are three types of placental mosaicism according to the abnormal cell line location: Type I – in the cytotrophoblast; Type II – in the vilus’ stroma; Type III – in both the above locations. Material and Methods: We present a case report about a 36-year-old pregnant woman going through our Department’s 1st trimester combined screening program; a CVS was performed, which showed Confined Placental Mosaicism (CPM). Results and Conclusion: Although the pregnant woman was in the low-risk group for aneuploidy, the patient wanted the cytogenetic study to be performed in order to reduce maternal anxiety. CVS was performed at the gestational age of 12 weeks + 5 days and the karyotype was 47XY+2/46XY. For the correct interpretation of this data an amniocentesis was performed at the gestational age of 15 weeks + 6 days, which showed a 46XY karyotype. We therefore conclude that the cytogenetic analysis of the CVS was the result of a CPM. A careful follow-up including fetal echocardiogram and seriated ultrasonographic monitoring was used to safely exclude malformations and fetal growth restriction. We verified no occurences throughout pregnancy, delivery and perinatal period. CVS practice was recently implemented in our country and has many advantages over amniocentesis. Besides the fact that an earlier gestational age usually means less affective bonding to the fetus and therefore makes medical termination of pregnancy somewhat less difficult, one should consider specific situations like the one reported in which CPM may be diagnosed. This condition is associated with increased risk of fetal growth restriction, so the clinician should be aware of the need for a more careful follow-up, since perinatal complications, which should be anticipated and treated, can be expected in 16-21% of these cases.
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Introdução: A síndrome de hipoventilação central (SHC) congénita é uma entidade nosológica rara bem definida, resultante da mutação do gene PHOX2B, envolvido na cascata de desenvolvimento do sistema nervoso autónomo. A mutação deste gene foi também demonstrada num subgrupo de doentes com SHC de início tardio, existindo igualmente formas adquiridas resultantes de processos vasculares, infecciosos, tumorais ou traumáticos. Num outro grupo mais raro de doentes, descrito recentemente, coexiste disfunção hipotalâmica (DH) que precede a SHC de início tardio e se associa, tal como na SHC congénita, a disautonomia e tumores da crista neural. Aceita-se, presentemente, que esta constitui uma entidade clínica e geneticamente distinta, embora não se tenha demonstrado a sua etiopatogenia, existindo argumentos a favor quer de uma etiologia genética, auto-imune ou paraneoplásica. Em 2007 foi denominada síndrome ROHHAD (sigla inglesa para obesidade de instalação rápida, disfunção hipotalâmica, hipoventilação e desregulação autonómica). Caso Clínico: Criança do sexo masculino, com desenvolvimento psicomotor e estaturoponderal considerados normais até aos 3 anos, altura em que iniciou hiperfagia com aumento rápido do índice de massa corporal, da velocidade de crescimento e da idade óssea, bem como sonolência excessiva diurna, agressividade e irritabilidade de agravamento progressivo. Meses depois iniciou desregulação térmica, com episódios de hiper e hipotermia graves. A investigação analítica revelou hipotiroidismo central e hiperprolactinémia e a RMN encefálica não revelou alterações, concluindo tratar-se de disfunção hipotalâmica de etiologia a esclarecer. O doseamento de neurotransmissores no LCR revelou diminuição dos metabolitos da serotonina. Iniciou terapêutica com sertralina, metilfenidato e levotiroxina, com melhoria do estado de vigília e das perturbações do comportamento. Nos anos seguintes verificou-se aparecimento de disautonomia, com refluxo gastro-esofágico, obstipação e estrabismo. Aos 8 anos foram diagnosticadas hipoventilação crónica central e hipertensão pulmonar, com necessidade de ventilação nocturna por traqueostomia, sendo então diagnosticada síndrome ROAHHD. Comentário: Trata-se do primeiro caso de síndrome ROAHHD descrito em Portugal e o único na literatura em que foi caracterizado o perfil de neurotransmissores no LCR e se registou melhoria da sonolência excessiva e da perturbação do comportamento, com terapêutica com metilfenidato e sertralina.
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Background: Bartonella henselae infection typically presents as a self-limiting regional lymphadenopathy. Bone involvement is a very rare form of the disease. Aims: To describe bone infection associated to cat-scratch disease (CSD) in a portuguese pediatric hospital. Methods: Clinical records of children admitted at the hospital with the diagnosis of CSD associated bone infection, during 2010, were reviewed. Diagnosis was confirmed by serology using indirect fluorescence assay and nucleic acid amplification from lymph node biopsy. Results: Two boys, 2 and 7 years old, were identified. One had prolonged fever and neck pain. MRI suggested D6-D9 osteomyelitis. Cultures were negative and Mycobacterium tuberculosis and Brucella infection were excluded. He was treated with gentamicin and cotrimoxazol, with clinical, but no significant image, improvement. The second child presented subacute sternoclavicular swelling and mildly enlarged axillary lymph nodes. Image studies revealed an osteolytic lesion of the clavicle and hypoechogenic splenic lesions. Histopathology of lymph node showed granulomatous adenitis and excluded malignancy. Therapy with azythromicin and rifampicin was successful. Both had contact with cats. Primary and secondary immunodeficiency was excluded. Conclusion: The optimal therapy for atypical Bartonella henselae infection is unknown and the role of antibiotics uncertain. Several combinations of antibiotics have been proposed for bone disease treatment, but recommendations are lacking. The different outcome in the presented cases could be related with the distinct therapeutic regimens used. Although atypical infection has classically been associated with immunodeficiency, this has not been the rule in bone disease and the need for extensive evaluation must be reviewed.
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Introdução: A polirradiculoneuropatia desmielinizante inflamatória crónica (CIDP) é uma patologia auto-imune caracterizada pela desmielinização dos nervos periféricos e raízes espinhais, rara na idade pediátrica. Apresenta-se de forma progressiva ou mais raramente recorrente, tornando-se por vezes difícil o seu diagnóstico e o diagnóstico diferencial com Síndrome de Guillain-Barré. Caso Clínico: Criança de 3 anos, com quadro de dor nos membros superiores e inferiores, proximal, simétrica, de agravamento nocturno, associada a recusa ou dificuldade no início da marcha e com 5 dias de evolução, sem outra sintomatologia acompanhante. Refere 2 episódios semelhantes nos 6 meses precedentes, com resolução espontânea em alguns dias. Nas 4 semanas prévias ao actual episódio, apresentou uma gastroenterite aguda sem agente isolado. Objectivamente salienta-se ausência de sinais inflamatórios locais, dor à mobilização dos membros (com possível sinal de Lasègue), diminuição da força muscular (grau 4) proximal e distal nos membros superiores e inferiores, tremor postural e intencional nos membros superiores, reflexos miotáticos presentes nos membros superiores mas ausentes nos inferiores e instabilidade na marcha. Não havia história de exposição a drogas ou tóxicos nem história familiar de neuropatia. Avaliação analítica para doenças auto-imunes e ecografias articulares não revelaram alterações. O estudo electromiográfico (EMG) demonstrou aumento das latências distais, com diminuição das velocidades de condução e atraso/dispersão das ondas F em múltiplos nervos. A análise do LCR revelou dissociação albumino-citológica. Estudo etiológico do LCR, sangue e fezes com resultados negativos. Em D9 de doença pela persistência das queixas álgicas, repetiu o EMG demonstrando agravamento da polineuropatia. Fez Imunoglobulina intravenosa (0,4 g/Kg/dia) durante 5 dias, com melhoria progressiva da sintomatologia e recuperação parcial da capacidade funcional. Discussão: O diagnóstico de CIDP baseia-se em elementos clínicos (interpretamos como episódios recorrentes de neuropatia num período de cerca de 6 meses, embora a nossa observação da criança seja apenas a actual) e no estudo electrofisiológico (reúne critérios de diagnóstico). Está planeada biópsia de nervo para confirmação diagnóstica embora nem todas as guidelines considerem necessária esta investigação. É importante diagnosticar precocemente a CIDP de forma a instituir a terapêutica mais adequada, determinante para o prognóstico.
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Introdução: Os doentes com Imunodeficiência Combinada Grave (SCID) não diagnosticados evoluem inexoravelmente para a morte no primeiro ano de vida. Um elevado índice de suspeição é fundamental para o diagnóstico precoce, o factor mais importante para a sobrevida destas crianças. Objectivo: Apresentam-se três casos clínicos ilustrativos da importância da precocidade diagnóstica no prognóstico final. Casos clínicos: Caso clínico 1: Lactente do sexo masculino, com antecedentes de infecções respiratórias de repetição, internado aos sete meses na UCIP do HDE por pneumonia a Adenovírus com insuficiência respiratória. Necessitou de ventilação mecânica e de duas transfusões de concentrado eritrocitário na primeira semana de internamento. Teve exantema exuberante, interpretado como toxidermia. Evoluiu para doença pulmonar sequelar grave. Aos nove meses foi feito o diagnóstico de SCID hipomorfa com doença do enxerto contra o hospedeiro pós-transfusional, controlada com imunossupressão (ciclosporina e glucocorticoides). Não foi transplantado com células progenitoras hematopoiéticas por não reunir condições clínicas. Na sequência de uma intercorrência respiratória veio a falecer aos 14 meses. Caso clínico 2: Lactente do sexo masculino, internado aos 6 meses no HDE por pneumonia intersticial hipoxemiante. Isolado P. jiroveci no lavado bronco-alveolar e feito o diagnóstico presuntivo de BCGite disseminado em criança com SCID T-B+NK-. Após estabilização clínica e esplenectomia foi transplantado com células progenitoras hematopoiéticas de dador fenoidêntico não aparentado. Dada a BCGite disseminada necessitou de vários ciclos de infusão de células do dador para uma reconstituição imunitária lenta e progressiva. Seis meses pós-transplante está clinicamente bem, com quimerismo linfóide T e NK completo. Caso clínico 3: Lactente do sexo masculino, internado aos 17 dias de vida por infecção respiratória alta e bacteriémia a M. catarrhalis. Reinternado quinze dias depois por sépsis a MRSA e linfopénia. A avaliação efectuada permitiu o diagnóstico de SCID T-B+NK- por defeito na cadeia gamma comum. Transplantado com células progenitoras hematopoiéticas de dador genoidêntico aos 4 meses, sem condicionamento. Clinicamente bem, seis meses pós-transplante, com reconstituição imunitária satisfatória. Conclusão: Esta doença tem uma prevalência não negligenciável e apenas com elevado indice de suspeição se pode estabelecer um plano de tratamento eficaz.
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Introdução: A otite média aguda (OMA) é uma patologia comum na infância mas rara abaixo dos 3 meses de idade Objectivos: Caracterizar a OMA e avaliar eventuais factores de risco no pequeno lactente. Métodos: Estudo descritivo, de 2005 a 2009 em lactentes com menos de três meses, internados por OMA. Analisaram-se idade, sexo, factores de risco (FR) comorbilidades, clínica, terapêutica e evolução. A avaliação de factores de risco foi realizada com grupo de controlo emparelhado para a idade. Resultados: Registaram-se 58 casos (18 recém-nascidos) com mediana de idades de 30 dias. Em 50 (86,2%) casos havia pelo menos um factor de risco: leite para lactentes exclusivo (31), agregado familiar com um irmão (31), uso de chupeta (18), atopia familiar (14), pai fumador (12), regurgitação frequente (11), mãe fumadora (10), refluxo gastroesofágico (5) e prematuridade (4). Trinta e quatro crianças (58,6%) tinham dois ou mais FR. Registaram-se infecções virais prévias em 38 doentes e nenhum caso cursou com bacteriémia ou doença invasiva. A mediana do valor dos leucócitos foi 10960/μL e a proteína C reactiva (PCR) 0,44 mg/dL. Todos fizeram antibioticoterapia endovenosa, a maioria (69%) com ampicilina e gentamicina (mediana de 7 dias). Foram FR para a ocorrência de otite ter pelo menos um irmão (p<0,00; OR=0,033; IC 95% 0,006-0,179), a mãe ser fumadora (p<0,019; OR 0,125; IC 95% 0,022-0,715) e prematuridade (p<0,009; OR 1,047; IC 95% 1,011-1,084). O sexo masculino (p=0,698), baixo peso (p=0,548), leite para lactentes exclusivo (p=0,301), uso de chupeta (p=0,101), regurgitação (p=0,646), refluxo gastro-esofágico p=0,594), atopia familiar (p=0,651) e pai fumador (p=0,609) não foram estatisticamente significativos para OMA. Foram contactados 30/58 crianças registando-se otites recorrentes em 15 (50%) com associação estatisticamente significativa entre a recorrência de OMA e o sexo masculino (43,3%vs6,7%, p=0,03). Comentários: A OMA no pequeno lactente cursa habitualmente sem repercussão sistémica pelo que a terapêutica endovenosa provavelmente só será necessária no recém-nascido dada a imaturidade farmacocinética deste grupo etário. A presença de pelo menos um irmão no agregado familiar, a prematuridade e mãe ser fumadora foram neste estudo factores de risco para a ocorrência de OMA e o sexo masculino para a recorrência.