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1.
Hum Reprod ; 38(8): 1621-1627, 2023 08 01.
Artículo en Inglés | MEDLINE | ID: mdl-37336546

RESUMEN

STUDY QUESTION: What is the potential impact of preimplantation genetic testing for aneuploidy (PGT-A) on obstetric and neonatal outcomes? SUMMARY ANSWER: PGT-A is not associated with increased rates of adverse maternal and neonatal outcomes in singleton pregnancies following IVF/ICSI cycles. WHAT IS KNOWN ALREADY: PGT-A pregnancies may be associated with increased risks of lower birthweight, preterm delivery, and hypertensive disorders compared with natural pregnancies. In a recent meta-analysis, the overall obstetric and neonatal outcomes of PGT-A pregnancies were favorable compared with those of IVF/ICSI pregnancies, although PGT-A pregnancies were associated with a higher risk of hypertensive disorders. STUDY DESIGN, SIZE, DURATION: A multicenter retrospective cohort study was performed in University-affiliated infertility centers. Single live births following IVF/ICSI between October 2016 and January 2021 were included in the study. PARTICIPANTS/MATERIALS, SETTING, METHODS: A total of 7146 live births after single embryo transfers with (n = 3296) or without (n = 3850) PGT-A were included. The primary outcome was pre-eclampsia and secondary outcomes included gestational diabetes, low birthweight and very low birthweight, cesarean section delivery, emergency cesarean section, as well as preterm birth, birthweight, congenital abnormalities, neonatal sex, Apgar score at 5 min, and neonatal intensive care unit admission. In a subgroup analysis, were included only blastocysts screened with next-generation sequencing (NGS). MAIN RESULTS AND THE ROLE OF CHANCE: Univariate analysis showed that pre-eclampsia, cesarean section incidence, and low Apgar score were higher in women undergoing PGT-A. However, after performing multivariate logistic and linear regression models accounting for many possible confounders, pregnancies that had been conceived after embryo biopsy showed no increase in adverse obstetric and neonatal outcomes. The subgroup analysis including patients with blastocysts screened by NGS showed a decreased risk of preterm birth in the group undergoing PGT-A. LIMITATIONS, REASONS FOR CAUTION: Caution should be used when interpreting the data because of its limitations, mainly related to its retrospective design. Although this is a large multicenter study, data acquisition included self-reporting questionnaires, and the deliveries occurred in different institutions with distinct protocols. WIDER IMPLICATIONS OF THE FINDINGS: The current study does not show any major adverse clinical outcomes after PGT-A. Efforts should be made to promote good quality research on embryo biopsy in terms of neonatal and obstetric outcomes, as well as its long-term consequences. STUDY FUNDING/COMPETING INTEREST(S): No specific funding was obtained for this study. The authors declare no conflicts of interest. TRIAL REGISTRATION NUMBER: N/A.


Asunto(s)
Aneuploidia , Pruebas Genéticas , Resultado del Embarazo , Femenino , Humanos , Recién Nacido , Embarazo , Pruebas Genéticas/métodos , Resultado del Embarazo/epidemiología , Estudios Retrospectivos , Medición de Riesgo , Masculino
2.
Reprod Biomed Online ; 43(5): 779-787, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34600856

RESUMEN

RESEARCH QUESTION: Female age is the single greatest factor influencing reproductive performance and granulosa cells are considered as potential biomarkers of oocyte quality. Is there an age effect on the energy metabolism of human mural granulosa cells? DESIGN: Observational prospective cohort and experimental study including 127 women who had undergone IVF cycles. Women were allocated to two groups: a group of infertile patients aged over 38 years and a control group comprising oocyte donors aged less than 35 years. Individuals with pathologies that could impair fertility were excluded from both groups. Following oocyte retrieval, cumulus and granulosa cells were isolated and their bioenergetic properties (oxidative phosphorylation parameters, rate of aerobic glycolysis and adenine nucleotide concentrations) were analysed and compared. RESULTS: Human mural luteinized granulosa and cumulus cells present high rates of aerobic glycolysis that cannot be increased further when mitochondrial ATP synthesis is inhibited. Addition of follicular fluid to the experimental media is necessary to reach the full respiratory capacity of the cells. Granulosa cells from aged women present lower mitochondrial respiration (12.8 ± 1.6 versus 11.2 ± 1.6 pmol O2/min/mg; P = 0.046), although mitochondrial mass is not decreased, and lower aerobic glycolysis, than those from young donors (12.9 ± 1.3 versus 10.9 ± 0.5 mpH/min/mg; P = 0.009). The concurrent decrease in the two energy supply pathways leads to a decrease in the cellular energy charge (0.87 ± 0.01 versus 0.83 ± 0.02; P < 0.001). CONCLUSIONS: Human mural luteinized granulosa cells exhibit a reduction in their energy metabolism as women age that is likely to influence female reproductive potential.


Asunto(s)
Envejecimiento/fisiología , Metabolismo Energético/fisiología , Células de la Granulosa/metabolismo , Luteinización , Reproducción/fisiología , Nucleótidos de Adenina/análisis , Adenosina Trifosfato/análisis , Adenosina Trifosfato/metabolismo , Adulto , Células del Cúmulo/metabolismo , Femenino , Fertilización In Vitro , Células de la Granulosa/química , Humanos , Mitocondrias/metabolismo , Recuperación del Oocito , Estudios Prospectivos
4.
J Assist Reprod Genet ; 38(7): 1799-1807, 2021 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-33851314

RESUMEN

OBJECTIVE: To investigate whether minimal ovarian stimulation (mOS) is as effective as conventional ovarian stimulation (cOS) for older women belonging to different groups according to the Poseidon criteria. MATERIAL AND METHODS: Observational retrospective multicentre cohort including women from Poseidon's groups 2 and 4 that underwent in vitro fertilization (IVF). We performed a mixed-effects logistic regression model, adding as a random effect the patients and the stimulation cycle considering the dependence of data. Survival curves were employed as a measure of the cumulative live birth rate (CLBR). The primary outcomes were live birth rate per embryo transfer and CLBR per consecutive embryo transfer and oocyte consumed until a live birth was achieved. RESULTS: A total of 2002 patients underwent 3056 embryo transfers (mOS = 497 and cOS = 2559). The live birth rates per embryo transfer in mOS and cOS showed no significant difference in both Poseidon's groups. Likewise, the logistic regression showed similar live birth rates between the two protocols in Poseidon's groups 2 (OR 1.165, 95% CI 0.77-1.77; p = 0.710) and 4 (OR 1.264 95% CI 0.59-2.70; p = 0.387). However, the survival curves showed higher CLBR per oocyte in women that received mOS (Poseidon group 2: p < 0.001 and Poseidon group 4: p = 0.039). CONCLUSIONS: Minimal ovarian stimulation is a good alternative to COS as a first-line treatment for patients belonging to Poseidon's groups 2 and 4. The number of oocytes needed to achieve a live birth seems inferior in mOS strategy than cOS.


Asunto(s)
Tasa de Natalidad , Inducción de la Ovulación/métodos , Adulto , Costos de los Medicamentos , Transferencia de Embrión/estadística & datos numéricos , Femenino , Fertilización In Vitro , Hormona Folículo Estimulante/uso terapéutico , Hormona Liberadora de Gonadotropina/antagonistas & inhibidores , Gonadotropinas/administración & dosificación , Gonadotropinas/economía , Gonadotropinas/uso terapéutico , Humanos , Edad Materna , Reserva Ovárica , Embarazo , Estudios Retrospectivos
5.
J Clin Med ; 10(2)2021 Jan 18.
Artículo en Inglés | MEDLINE | ID: mdl-33477585

RESUMEN

Given the estrogen-dependence associated with endometriosis, hyper-stimulation associated with assisted reproduction treatment may exacerbate the disease process and adversely affect endometrial receptivity and subsequent implantation. In this way, a freeze-all deferred embryo transfer (ET) approach may benefit patients with endometriosis, although controversy exists regarding the mechanism of endometriosis-associated infertility and benefits of deferred ET on endometrial receptivity. Hence, the purpose of this study was to compare in vitro fertilization (IVF) outcomes in women with endometriosis, diagnosed by histology, undergoing fresh versus deferred-ET after elective cryopreservation. Of the 728 women included, no significant differences were observed in baseline patient characteristics and response to gonadotrophin stimulation between fresh and deferred ET groups. Furthermore, no significant differences in implantation rate (49.7 vs. 49.9%, p = 0.73), clinical pregnancy rate (40.9 vs. 39.9%, p = 0.49), and miscarriage rate (9.4 vs. 9.9%, p = 0.63) were observed between fresh and deferred ET groups, respectively. Hence, contrary to previous studies, our results suggest that a deferred ET "freeze-all" IVF strategy does not improve early pregnancy outcomes among women with endometriosis. However, prospective studies are required to validate these findings and further insight into the etiology and pathogenesis of endometriosis-associated infertility are necessary to optimize IVF protocols in this population.

6.
Fertil Steril ; 111(4): 722-733, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30929731

RESUMEN

OBJECTIVE: To evaluate the effectiveness of corifollitropin alfa in improving the success of IVF. DESIGN: Systematic review and meta-analysis. SETTING: Not applicable. PATIENT(S): Infertile women undergoing conventional IVF or intracytoplasmic sperm injection (ICSI). INTERVENTION(S): Randomized controlled trials (RCTs) of infertile women undergoing a single IVF/ICSI cycle with either corifollitropin alfa or a conventional ovarian stimulation protocol based on daily injections. The review protocol was registered in PROSPERO before starting the data extraction (CRD42018088605). MAIN OUTCOME MEASURE(S): Primary outcomes were live birth rate and/or ongoing pregnancy rate. Clinical pregnancy rate, miscarriage rate, multiple pregnancies, number of oocytes and embryos obtained, cancellation rate, and rate of ovarian hyperstimulation syndrome and ectopic pregnancy were considered as secondary outcomes. RESULT(S): Eight randomized controlled trials were included; 2,345 women were assigned to the intervention group and 1,995 to the control group. The analysis of 4,340 IVF cycles did not reveal any difference in live birth rate and/or ongoing pregnancy rate between groups (risk ratio [RR], 0.92; 95% confidence interval [CI], 0.80-1.05). Similarly, no difference was found in clinical pregnancy rate (RR, 0.96; 95% CI, 0.88-1.05; I2 = 0%), miscarriage rate (RR, 0.94; 95% CI, 0.71-1.25; I2 = 0%), or multiple pregnancy rate (RR, 1.22; 95% CI, 0.99-1.50; I2 = 0%). Also, the rates of cycle cancellation, ovarian hyperstimulation syndrome, and ectopic pregnancy were similar in both groups. Sensitivity and subgroup analyses did not provide statistical changes to pooled results. CONCLUSION(S): Corifollitropin alfa seems to be an alternative for daily recombinant FSH injections in normal and poor responder patients undergoing ovarian stimulation in IVF/ICSI treatment cycles.


Asunto(s)
Fertilización In Vitro/métodos , Hormona Folículo Estimulante Humana/uso terapéutico , Infertilidad Femenina/terapia , Inducción de la Ovulación/métodos , Ensayos Clínicos Controlados Aleatorios como Asunto/estadística & datos numéricos , Adulto , Femenino , Fertilización In Vitro/efectos adversos , Humanos , Infertilidad Femenina/epidemiología , Síndrome de Hiperestimulación Ovárica/epidemiología , Inducción de la Ovulación/efectos adversos , Embarazo , Resultado del Embarazo/epidemiología , Índice de Embarazo
7.
Reprod Biomed Online ; 36(6): 686-697, 2018 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-29598846

RESUMEN

Mitochondria have been implicated as key factors regulating female reproductive processes. Notable progress has been made in determining the role of mitochondria with respect to oocyte maturation, fertilization and early embryo development. In addition, mitochondrial function and dysfunction has been the subject of various studies in ovarian ageing and metabolic stress models. However, the overall mitochondrial impact on female fertility is yet to be uncovered. The mitochondrial DNA content of granulosa, cumulus and trophectoderm cells is being explored as a biomarker of oocyte quality and embryo viability. As growing evidence suggests that embryo potential could be related to the ability of oocyte mitochondria to generate energy, efforts have been made to investigate the possibility of improving mitochondrial capacity in women with poor outcomes after treatment with assistedreproductive technologies. Thus far, therapeutic attempts have focused mainly on using nutrients to restore mitochondrial function and transferring mitochondria from autologous germline precursor cells. Moreover, new perspectives on optimizing infertility treatments have arisen with modern mitochondrial replacement therapies, which are being applied in women with mitochondrial disease-causing mutations. This review explores aspects of the distinctive contribution of mitochondria to reproductive processes and discusses current and emerging clinical implications.


Asunto(s)
Fertilidad/fisiología , Mitocondrias/metabolismo , Oocitos/metabolismo , Técnicas Reproductivas Asistidas , ADN Mitocondrial/metabolismo , Femenino , Humanos
8.
Arch Gynecol Obstet ; 291(4): 939-43, 2015 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-25315383

RESUMEN

PURPOSE: To compare the effectiveness of expectant management versus methotrexate in selected cases of tubal ectopic pregnancy. METHODS: A double-blind randomized trial included 23 selected patients with a confirmed diagnosis of tubal pregnancy who met the inclusion criteria (hemodynamic stability, initial serum ß-hCG concentration <2,000 mIU/mL, declining titers of ß-hCG 48 h prior to treatment, visible tubal pregnancy on transvaginal ultrasound, a tubal mass <5.0 cm and fertility desire). The patients were divided into two groups: 10 patients in the methotrexate group (MTX 50 mg/m(2) administered as a single intramuscular dose) and 13 patients in the placebo group (saline solution administered in a single intramuscular dose). Quantitative variables were expressed as means ± standard deviations and compared by Student's t test or Mann-Whitney test. Dichotomous variables (success/treatment failure) were presented as proportions and compared by the Fisher exact test. RESULTS: Successful treatment with negative titers of ß-hCG occurred in 9 cases (90.0%) of the methotrexate group and in 12 (92.3%) of the placebo group (p > 0.999). The ß-hCG values became undetectable at 22 ± 15.4 days in the methotrexate group and 20.6 ± 8.4 days in the placebo group (p = 0.80). CONCLUSION: This study showed no statistically significant difference between the treatment with methotrexate and placebo, with similar success rates and similar time interval for ß-hCG to become undetectable.


Asunto(s)
Abortivos no Esteroideos/administración & dosificación , Gonadotropina Coriónica Humana de Subunidad beta/sangre , Metotrexato/administración & dosificación , Embarazo Tubario/sangre , Embarazo Tubario/tratamiento farmacológico , Abortivos no Esteroideos/uso terapéutico , Adolescente , Adulto , Relación Dosis-Respuesta a Droga , Método Doble Ciego , Femenino , Humanos , Inyecciones Intramusculares , Metotrexato/uso terapéutico , Embarazo , Embarazo Tubario/diagnóstico por imagen , Resultado del Tratamiento , Ultrasonografía , Adulto Joven
9.
ABCD (São Paulo, Impr.) ; 27(4): 247-250, Nov-Dec/2014. tab
Artículo en Inglés | LILACS | ID: lil-735690

RESUMEN

BACKGROUND: Esophageal trauma is considered one of the most severe lesions of the digestive tract. There is still much controversy in choosing the best treatment for cases of esophageal perforation since that decision involves many variables. The readiness of medical care, the patient's clinical status, the local conditions of the perforated segment, and the severity of the associated injuries must be considered for the most adequate therapeutic choice. AIM: To demonstrate and to analyze the results of urgent esophagectomy in a series of patients with esophageal perforation. METHODS: A retrospective study of 31 patients with confirmed esophageal perforation. Most injuries were due to endoscopic dilatation of benign esophageal disorders, which had evolved with stenosis. The diagnosis of perforation was based on clinical parameters, laboratory tests, and endoscopic images. ‪The main surgical technique used was transmediastinal esophagectomy followed by reconstruction of the digestive tract in a second surgical procedure. Patients were evaluated for the development of systemic and local complications, especially for the dehiscence or stricture of the anastomosis of the cervical esophagus with either the stomach or the transposed colon. RESULTS: Early postoperative evaluation showed a survival rate of 77.1% in relation to the proposed surgery, and 45% of these patients presented no further complications. The other patients had one or more complications, being pulmonary infection and anastomotic fistula the most frequent. The seven patients (22.9%) who underwent esophageal resection 48 hours after the diagnosis died of sepsis. At medium and long-term assessments, most patients reported a good quality of life and full satisfaction regarding the surgery outcomes. CONCLUSIONS: Despite the morbidity, emergency esophagectomy has its validity, especially in well indicated cases of esophageal perforation subsequent to endoscopic dilation for ...


RACIONAL: O trauma de esôfago é considerado uma das lesões mais graves do trato digestivo. O tratamento de escolha para casos de perfuração esofágica ainda é controverso, visto que esta decisão envolve inúmeras variáveis. As condições clínicas do paciente, as condições locais no segmento do esôfago perfurado, a gravidade das lesões associadas e o tempo de atendimento são essenciais para que a equipe cirúrgica possa instituir o tratamento adequado. OBJETIVO: Demonstrar e analisar os resultados da esofagectomia de urgência em uma série de pacientes com perfuração do esôfago. MÉTODO: Estudo retrospectivo incluindo 31 pacientes com confirmação diagnóstica de perfuração esofágica. A maior parte das lesões foi consequente à dilatação endoscópica de afecções benignas do esôfago que evoluíram com estenose. O diagnóstico da perfuração foi baseado em parâmetros clínicos, exames laboratoriais, radiológicos e endoscopia digestiva alta. A principal técnica cirúrgica utilizada foi a esofagectomia transmediastinal seguida da reconstrução do trânsito digestivo em um segundo tempo cirúrgico. Os pacientes foram avaliados em relação ao desenvolvimento de complicações sistêmicas e locais, notadamente deiscência e estenose da anastomose do esôfago cervical com o estômago ou cólon transposto. RESULTADOS: A avaliação pós-operatória precoce demonstrou sobrevida de 77,1% em relação ao ato cirúrgico proposto, sendo que 45% não apresentou qualquer complicação. Os outros pacientes apresentaram uma ou mais complicações, sendo a infecção pulmonar e a fístula anastomótica as mais frequentes. Sete pacientes (22,9%) evoluíram a óbito por quadro séptico. Tais pacientes foram submetidos à ressecção esofágica após 48 horas do diagnóstico da perfuração. Na avaliação a médio e longo prazo, a maioria dos pacientes relatou estar satisfeito com o ato cirúrgico, referindo boa qualidade de vida. CONCLUSÕES: Apesar da morbidade não desprezível, a esofagectomia de urgência tem ...


Asunto(s)
Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Adulto Joven , Tratamiento de Urgencia , Perforación del Esófago/cirugía , Esofagectomía , Estudios Retrospectivos
10.
Arch Gynecol Obstet ; 290(3): 417-23, 2014 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-24791968

RESUMEN

PURPOSE: Ectopic pregnancy is the leading cause of maternal death in the first trimester of pregnancy. The dosage of beta fraction of human chorionic gonadotropin (beta-hCG) and improvement of the transvaginal ultrasound allowed an earlier diagnosis and a conservative management. Currently, the use of systemic methotrexate (MTX) proved to be a great alternative with similar success rates and completely non-invasive. METHODS: We searched for the most relevant articles on the use of MTX in ectopic pregnancy published between 2003 and 2013 in high-impact journals. We performed a strategic search at the Centre for Reviews and Dissemination (CRD), Database of Abstracts of Reviews of Effects (DARE), National Institute for Health Research (NHS), International Prospective Register of Systematic Reviews (PROSPERO), The Cochrane Database of Systematic Reviews (CDSR) and Medical Literature Analysis and Retrieval System Online (MEDLINE) according to the descriptors "pregnancy, ectopic" and "methotrexate", alone or combined. RESULTS: Thus, we based this review on 32 studies that were classified following the grades of recommendation and levels of evidence proposed by the Oxford Centre for Evidence-Based Medicine. Additionally, selected papers were used. Scientific evidence points to a growing trend in the choice of conservative treatment for ectopic pregnancies, whereas expectant management still lacks studies for definitive conclusions. Indeed, the well-established protocols which exhibit a greater number of studies are still based on the single-dose treatment. CONCLUSION: Considering MTX, it proved to be more effective in cases of low titers of beta-hCG and masses with a small diameter, although there is still no uniformity of these parameters. The choice largely depends on the experience of the medical team and ultimately, on the woman's reproductive desire.


Asunto(s)
Abortivos no Esteroideos/administración & dosificación , Metotrexato/administración & dosificación , Embarazo Ectópico/tratamiento farmacológico , Gonadotropina Coriónica Humana de Subunidad beta/sangre , Femenino , Humanos , Embarazo , Embarazo Ectópico/diagnóstico por imagen , Ultrasonografía
11.
Arq Bras Cir Dig ; 27(4): 247-50, 2014.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-25626932

RESUMEN

BACKGROUND: Esophageal trauma is considered one of the most severe lesions of the digestive tract. There is still much controversy in choosing the best treatment for cases of esophageal perforation since that decision involves many variables. The readiness of medical care, the patient's clinical status, the local conditions of the perforated segment, and the severity of the associated injuries must be considered for the most adequate therapeutic choice. AIM: To demonstrate and to analyze the results of urgent esophagectomy in a series of patients with esophageal perforation. METHODS: A retrospective study of 31 patients with confirmed esophageal perforation. Most injuries were due to endoscopic dilatation of benign esophageal disorders, which had evolved with stenosis. The diagnosis of perforation was based on clinical parameters, laboratory tests, and endoscopic images. ‪The main surgical technique used was transmediastinal esophagectomy followed by reconstruction of the digestive tract in a second surgical procedure. Patients were evaluated for the development of systemic and local complications, especially for the dehiscence or stricture of the anastomosis of the cervical esophagus with either the stomach or the transposed colon. RESULTS: Early postoperative evaluation showed a survival rate of 77.1% in relation to the proposed surgery, and 45% of these patients presented no further complications. The other patients had one or more complications, being pulmonary infection and anastomotic fistula the most frequent. The seven patients (22.9%) who underwent esophageal resection 48 hours after the diagnosis died of sepsis. At medium and long-term assessments, most patients reported a good quality of life and full satisfaction regarding the surgery outcomes. CONCLUSIONS: Despite the morbidity, emergency esophagectomy has its validity, especially in well indicated cases of esophageal perforation subsequent to endoscopic dilation for benign strictures.


Asunto(s)
Tratamiento de Urgencia , Perforación del Esófago/cirugía , Esofagectomía , Adulto , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Adulto Joven
12.
Arq Bras Cir Dig ; 26(3): 173-8, 2013.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-24190373

RESUMEN

BACKGROUND: Even though the esophageal cancer has innumerous treatment options its prognosis is still unsettled. Because esophagectomy is rarely curative, new and emerging therapies come to light such as isolated chemotherapy and radiotherapy or combined chemoradiation, followed or not by surgery. The rescue esophagectomy is an alternative for those patients with recurrent or advanced disease. AIM: To evaluate the results of the rescue esophagectomy in patients with esophageal cancer who had previously undergone chemoradiation and describe local and systemic complications of the procedure. METHODS: Eighteen patients with unresectable esophageal squamous cell carcinoma were treated with chemoradiation followed by rescue esophagectomy. All of them presented the preoperative clinical conditions required to indicate the surgical procedure. Transthoracic esophagectomy with right side thoracotomy plus midline laparotomy was performed. Patients were evaluated with regard to any postoperative complications. RESULTS: There were five patients with evidence of fistula at the level of the anastomosis, and four of them progressed satisfactorily. Postoperative dilation was needed in five out of eighteen patients due to stenosis of the esophagogastric suture line. Seven patients did develop pulmonary infection with a fatal outcome for two of them. Among the patients who were available for a five-year follow-up, there was a rate of 53.8% of disease-free survival. CONCLUSIONS: These patients presented an elevated morbidity of the procedure related to many factors such as the long period between chemoradiation and surgery, which leads to tissue injury resulting in anastomotic fistulas. Nevertheless, esophagectomy seems to be valuable in cases without any other therapeutic option.


Asunto(s)
Carcinoma de Células Escamosas/cirugía , Neoplasias Esofágicas/cirugía , Esofagectomía/efectos adversos , Anciano , Carcinoma de Células Escamosas/patología , Neoplasias Esofágicas/patología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Retrospectivos
13.
ABCD (São Paulo, Impr.) ; 26(3): 173-178, jul.-set. 2013.
Artículo en Portugués | LILACS | ID: lil-689673

RESUMEN

RACIONAL: Apesar das inúmeras opções terapêuticas, o prognóstico da neoplasia maligna de esôfago continua sombrio. Devido à baixa taxa de cura da esofagectomia, foram desenvolvidas novas propostas de tratamento como a quimioterapia e radioterapia isoladas ou associadas, concomitante ou não à cirurgia, além da quimiorradiação exclusiva. A esofagectomia de regaste surge como opção terapêutica para aqueles pacientes com recorrência ou persistência da doença após tratamento clínico. OBJETIVO: Avaliar os resultados da esofagectomia de resgate em pacientes com câncer de esôfago submetidos previamente à quimiorradiação exclusiva, assim como descrever as complicações locais e sistêmicas. MÉTODO: Foram analisados retrospectivamente 18 pacientes com diagnóstico inicial de carcinoma epidermóide de esôfago irressecável, submetidos previamente à quimiorradioterapia. Após o tratamento oncológico eles foram examinados quanto às suas condições clínicas pré-operatórias. Foi realizada a esofagectomia por toracotomia direita e reconstrução do trânsito digestivo por cervicolaparotomia. Os mesmos foram avaliados no período pós-operatório tanto em relação às complicações locais e sistêmicas como em relação à qualidade de vida. RESULTADOS: As complicações foram frequentes, sendo que cinco pacientes desenvolveram fístula por deiscência da anastomose. Quatro desses evoluíram de maneira satisfatória. Cinco também apresentaram estenose esofagogástrica cervical, mas responderam bem à dilatação endoscópica. Infecção pulmonar foi outra complicação observada e presente em sete pacientes, sendo inclusive causa de óbito em dois deles. Dentre os em que se conseguiu realizar seguimento com tempo médio de 5,6 anos, 53,8% estão vivos sem doença. CONCLUSÕES: Existe elevada morbidade da esofagectomia de regaste principalmente após longo espaço de tempo entre quimiorradiação e a cirurgia, propiciando maior dano tecidual e predisposição à formação de fistulas anastomóticas. No entanto, os resultados se mostram favoráveis àqueles que não possuem mais opções terapêuticas.


BACKGROUND: Even though the esophageal cancer has innumerous treatment options its prognosis is still unsettled. Because esophagectomy is rarely curative, new and emerging therapies come to light such as isolated chemotherapy and radiotherapy or combined chemoradiation, followed or not by surgery. The rescue esophagectomy is an alternative for those patients with recurrent or advanced disease. AIM: To evaluate the results of the rescue esophagectomy in patients with esophageal cancer who had previously undergone chemoradiation and describe local and systemic complications of the procedure. METHODS: Eighteen patients with unresectable esophageal squamous cell carcinoma were treated with chemoradiation followed by rescue esophagectomy. All of them presented the preoperative clinical conditions required to indicate the surgical procedure. Transthoracic esophagectomy with right side thoracotomy plus midline laparotomy was performed. Patients were evaluated with regard to any postoperative complications. RESULTS: There were five patients with evidence of fistula at the level of the anastomosis, and four of them progressed satisfactorily. Postoperative dilation was needed in five out of eighteen patients due to stenosis of the esophagogastric suture line. Seven patients did develop pulmonary infection with a fatal outcome for two of them. Among the patients who were available for a five-year follow-up, there was a rate of 53.8% of disease-free survival. CONCLUSIONS: These patients presented an elevated morbidity of the procedure related to many factors such as the long period between chemoradiation and surgery, which leads to tissue injury resulting in anastomotic fistulas. Nevertheless, esophagectomy seems to be valuable in cases without any other therapeutic option.


Asunto(s)
Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Carcinoma de Células Escamosas/cirugía , Neoplasias Esofágicas/cirugía , Esofagectomía/efectos adversos , Carcinoma de Células Escamosas/patología , Neoplasias Esofágicas/patología , Estadificación de Neoplasias , Estudios Retrospectivos
14.
J Med Case Rep ; 6: 317, 2012 Sep 24.
Artículo en Inglés | MEDLINE | ID: mdl-23006791

RESUMEN

INTRODUCTION: Lipomas of the gastrointestinal tract are a rare condition. Only 5% are of gastric origin, and this corresponds to 2% to 3% of all benign tumors of the stomach and less than 1% of all gastric neoplasms. It is our purpose to report an unusual presentation of a giant gastric lipoma in an oligosymptomatic patient and highlight the importance of discussing differential diagnosis in this situation. A review of the literature has shown that this is one of the largest gastric lipomas described. CASE PRESENTATION: We describe a rare case of a benign gastric tumor with uncommon features in a 63-year-old Caucasian woman. She was admitted with abdominal discomfort, nausea, and upper abdominal fullness after eating. The lesion was suspicious of malignancy because of its dimension and central contrast enhancement on computed tomography. Conventional upper digestive endoscopy revealed a large bulging mass in the gastric posterior wall and three ulcerated areas. In this procedure, a technical limitation due to the location of the mass in the submucosa prevented an adequate biopsy from being obtained. The fragments obtained from the ulcers revealed nothing but necrotic mucosa. Our patient underwent a subtotal gastrectomy and D1 lymphadenectomy with a Roux-en-Y reconstruction. Macroscopic findings revealed a 12 × 8 × 6cm mass with a volume of 576cm3, and the histological pattern demonstrated well-differentiated mature adipose tissue surrounded by a fibrous capsule, confirming the diagnosis of gastric submucosal lipoma. CONCLUSIONS: Gastric lipoma is a rare benign disease that eventually simulates a malignant tumor.

15.
ABCD (São Paulo, Impr.) ; 25(2): 91-95, abr.-jun. 2012. ilus
Artículo en Portugués | LILACS | ID: lil-663871

RESUMEN

RACIONAL: O divertículo faringoesofágico apresenta-se como distúrbio pouco frequente e é provável que este fato seja responsável pela dificuldade encontrada na escolha do método terapêutico mais eficaz. O tratamento cirúrgico ainda é a principal opção terapêutica. No entanto, há controvérsias quanto à técnica cirúrgica que garante melhores resultados. OBJETIVO - Avaliar a eficácia da diverticulectomia com miotomia do músculo cricofaríngeo pela sutura mecânica linear no tratamento cirúrgico do divertículo faringoesofágico em uma série de pacientes no tocante às suas complicações locais e sistêmicas. MÉTODO: Foram atendidos 19 pacientes com divertículo de Zenker. Todos apresentavam as condições clínicas necessárias e preenchiam os critérios de elegibilidade para realização do procedimento cirúrgico. Após a diverticulectomia com sutura mecânica todos foram submetidos a avaliação pós-operatória no sentido de identificar a manifestação de qualquer tipo de complicação. Os pacientes foram estudados retrospectivamente através da análise de prontuários e descrição da internação hospitalar realizada no momento da operação e da evolução ambulatorial. RESULTADOS: A totalidade apresentou resultados satisfatórios, sem evidência de fístula ao nível da sutura da faringe no período pós-operatório precoce. Somente dois indivíduos perderam seguimento na avaliação tardia e um desenvolveu estenose faríngea revertida com dilatação endoscópica. Todos referiram estar satisfeitos com o procedimento empregado e relataram melhora na qualidade de vida ao final do seguimento, proporcionada pelo retorno da deglutição. CONCLUSÃO: A diverticulectomia com a miotomia do músculo cricofaríngeo e posterior fechamento da faringe com sutura mecânica linear mostrou-se técnica eficaz, com poucas complicações pós-operatórias e melhora significativa na qualidade de vida.


BACKGROUND: Pharyngoesophageal diverticulum presents itself as an uncommon disorder. Thus, choosing the most effective treatment method may be challenging. Surgical treatment remains as the main option. However, establishing the best surgical technique is still controversial. AIM: To evaluate the results of diverticulecomy with chricopharyngeal miotomy and linear stapler closure of the pharynx in a patient sample with Zenker`s diverticulum regarding local and systemic complications. METHODS: Nineteen patients with pharyngoesophageal diverticulum were admitted. All of them presented the clinical conditions required to indicate the surgical procedure. Patients were evaluated with regard to any post-operative complications. This study was conducted retrospectively with patients' data analysis. RESULTS - Patients showed satisfactory results, with no evidence of fistula at the level of the pharyngeal suture. Two out of 19 lost post-operative follow-up and one of them had pharyngeal stenosis reverted with endoscopic dilation. The entire sample reported being satisfied with the procedure emphasizing improvement of the quality of life mainly due to the return of physiological deglutition. CONCLUSION: The diverticulectomy with myotomy and posterior pharyngeal closure with linear surgical stapler proved to be an effective technique, offering a lower risk of post-operative complications and improving the overall quality of life.


Asunto(s)
Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Engrapadoras Quirúrgicas , Divertículo de Zenker/cirugía , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Estudios Retrospectivos , Engrapadoras Quirúrgicas/efectos adversos
16.
Arq Bras Cir Dig ; 25(2): 91-5, 2012.
Artículo en Inglés, Portugués | MEDLINE | ID: mdl-23381750

RESUMEN

BACKGROUND: Pharyngoesophageal diverticulum presents itself as an uncommon disorder. Thus, choosing the most effective treatment method may be challenging. Surgical treatment remains as the main option. However, establishing the best surgical technique is still controversial. AIM: To evaluate the results of diverticulecomy with chricopharyngeal miotomy and linear stapler closure of the pharynx in a patient sample with Zenker`s diverticulum regarding local and systemic complications. METHODS: Nineteen patients with pharyngoesophageal diverticulum were admitted. All of them presented the clinical conditions required to indicate the surgical procedure. Patients were evaluated with regard to any post-operative complications. This study was conducted retrospectively with patients' data analysis. RESULTS: Patients showed satisfactory results, with no evidence of fistula at the level of the pharyngeal suture. Two out of 19 lost post-operative follow-up and one of them had pharyngeal stenosis reverted with endoscopic dilation. The entire sample reported being satisfied with the procedure emphasizing improvement of the quality of life mainly due to the return of physiological deglutition. CONCLUSION: The diverticulectomy with myotomy and posterior pharyngeal closure with linear surgical stapler proved to be an effective technique, offering a lower risk of post-operative complications and improving the overall quality of life.


Asunto(s)
Engrapadoras Quirúrgicas , Divertículo de Zenker/cirugía , Anciano , Femenino , Humanos , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Estudios Retrospectivos , Engrapadoras Quirúrgicas/efectos adversos
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