RESUMO
BACKGROUND: Physicians and associate (non-physician) clinicians conduct cesarean sections in Tanzania and Malawi. Urogenital fistulas may occur as complications of cesarean section. Location and circumstances can indicate iatrogenic origin as opposed to ischemic injury following prolonged, obstructed labor. METHODS: This retrospective review assessed the frequency of iatrogenic urogenital fistulas following cesarean sections conducted by either associate clinicians or physicians in Tanzania and Malawi. It focuses on 325 women with iatrogenic fistulas among 1290 women who had fistulas after cesarean birth in Tanzania and Malawi between 1994 and 2017. An equivalence test compared the proportion of iatrogenic fistulas after cesarean sections performed by associate clinicians and physicians (equivalence margin = 0.135). Logistic regression was used to model the occurrence of iatrogenic fistula after cesarean section, controlling for cadre, date, maternal age, previous abdominal surgery and parity. RESULTS: Associate clinicians attended 1119/1290 (86.7%) cesarean births leading to fistulas, while physicians attended 171/1290 (13.3%). Iatrogenic fistulas occurred in 275/1119 (24.6%) cesarean births by associate clinicians and in 50/171 (29.2%) cesarean births by physicians. The risk difference and 90% confidence interval were entirely contained within an equivalence margin of 13.5%, supporting a conclusion of equivalence between the two cadres. The odds of iatrogenic fistula after cesarean section were not statistically significantly different between associate clinicians and physicians (aOR 0.90; 95% CI 0.61-1.33). CONCLUSIONS: Associate clinicians appear equivalent to physicians performing cesarean sections in terms of iatrogenic fistula risk. Lower iatrogenic proportions for associate clinicians could reflect different caseloads. The occurrence of iatrogenic fistulas illustrates the importance of appropriate labor management and cesarean section decision-making, irrespective of health provider cadre. Given the noninferior performance and lower costs of employing associate clinicians, other countries with insufficient and/or unequally distributed health workforces could consider task-shifting cesarean sections to associate clinicians.
Assuntos
Cesárea , Doença Iatrogênica , Médicos , Humanos , Feminino , Cesárea/efeitos adversos , Malaui/epidemiologia , Tanzânia/epidemiologia , Estudos Retrospectivos , Gravidez , Adulto , Doença Iatrogênica/epidemiologia , Adulto Jovem , Fístula/etiologia , Fístula/epidemiologiaRESUMO
BACKGROUND: Female genital fistulas are abnormal communications that lead to urinary and/or fecal incontinence. This analysis compares the characteristics of women with fistulas to understand how countries differ from one another in the circumstances of genital fistula development. METHODS: This retrospective records review evaluated demographics and circumstances of fistula development for 6,787 women who sought fistula treatment between 1994 and 2017 in Tanzania, Uganda, Kenya, Malawi, Rwanda, Somalia, South Sudan, Zambia, and Ethiopia. RESULTS: Most women developed fistula during childbirth, whether vaginal (3,234/6,787, 47.6%) or by cesarean section (3,262/6,787, 48.1%). Others had fistulas attributable to gynecological surgery (215/6,787, 3.2%) or rare causes (76/6,787, 1.1%). Somalia, South Sudan, and Ethiopia had comparatively high proportions following vaginal birth and birth at home, where access to care was extremely difficult. Fistulas with live births were most common in Kenya, Malawi, Rwanda, Uganda, Tanzania, and Zambia, indicating more easily accessible care. CONCLUSIONS: Characteristics of women who develop genital fistula point to geographic differences in obstetric care. Access to care remains a clear challenge in South Sudan, Somalia, and Ethiopia. Higher proportions of fistula after cesarean birth and gynecological surgery in Kenya, Malawi, Rwanda, Uganda, Tanzania, and Zambia signal potential progress in obstetric fistula prevention while compelling attention to surgical safety and quality of care.
Assuntos
Cesárea , Fístula Vaginal , Cesárea/efeitos adversos , Feminino , Fístula , Genitália Feminina , Humanos , Quênia , Gravidez , Estudos RetrospectivosRESUMO
BACKGROUND: Genito-urinary fistulas may occur as complications of obstetric surgery. Location and circumstances can indicate iatrogenic origin as opposed to pressure necrosis following prolonged, obstructed labor. METHODS: This retrospective review focuses on 787 women with iatrogenic genito-urinary fistulas among 2942 women who developed fistulas after cesarean birth between 1994 and 2017. They are a subset of 5469 women who sought obstetric fistula repair between 1994 and 2017 in Tanzania, Uganda, Kenya, Malawi, Rwanda, Somalia, South Sudan, Zambia, and Ethiopia. We compared genito-urinary fistula classifications following vaginal birth to classifications following cesarean birth. We assessed whether and how the proportion of iatrogenic genito-urinary fistula was changing over time among women with fistula, comparing women with iatrogenic fistulas to women with fistulas attributable to pressure necrosis. We used mixed effects logistic regression to model the rise in iatrogenic fistula among births resulting in fistula and specifically among cesarean births resulting in fistula. RESULTS: Over one-quarter of women with fistula following cesarean birth (26.8%, 787/2942) had an injury caused by surgery rather than pressure necrosis due to prolonged, obstructed labor. Controlling for age, parity, and previous abdominal surgery, the odds of iatrogenic origin nearly doubled over time among all births resulting in fistula (aOR 1.94; 95% CI 1.48-2.54) and rose by 37% among cesarean births resulting in fistula (aOR 1.37; 95% CI 1.02-1.83). In Kenya and Rwanda the rise of iatrogenic injury outpaced the increasing frequency of cesarean birth. CONCLUSIONS: Despite the strong association between obstetric fistula and prolonged, obstructed labor, more than a quarter of women with fistula after cesarean birth had injuries due to surgical complications rather than pressure necrosis. Risks of iatrogenic fistula during cesarean birth reinforce the importance of appropriate labor management and cesarean decision-making. Rising numbers of iatrogenic fistulas signal a quality crisis in emergency obstetric care. Unaddressed, the impact of this problem will grow as cesarean births become more common.
Assuntos
Distocia , Complicações do Trabalho de Parto , Fístula Urinária , Etiópia , Feminino , Humanos , Doença Iatrogênica/epidemiologia , Necrose , Complicações do Trabalho de Parto/epidemiologia , Complicações do Trabalho de Parto/etiologia , Gravidez , Estudos RetrospectivosRESUMO
BACKGROUND: Most genital fistulas result from prolonged, obstructed labor or surgical complications. Other causes include trauma (from accidents, traditional healers, or sexual violence), radiation, carcinoma, infection, unsafe abortion, and congenital malformation. METHODS: This retrospective records review focuses on rare fistula causes among 6,787 women who developed fistula after 1980 and sought treatment between 1994 and 2017 in Tanzania, Uganda, Kenya, Malawi, Zambia, Rwanda, Ethiopia, Somalia, and South Sudan. We compare fistula etiologies across countries and assess associations between rare causes and type of incontinence (urine, feces, or both). RESULTS: Rare fistula accounted for 1.12% (76/6,787) of all fistulas, including traumatic accidents (19/6,787, 0.28%), traumatic sexual violence (15/6,787, 0.22%), traumatic injuries caused by traditional healers (13/6,787, 0.19%), unsafe abortion (10/6,791, 0.15%), radiation (8/6,787, 0.12%), complications of HIV infection (6/6,787, 0.09%), and congenital abnormality (5/6,787, 0.07%). Trauma caused by traditional healers was a particular problem among Somali women. CONCLUSION: Fistulas attributable to rare causes illuminate a variety of risks confronting women. Fistula repair training materials should distinguish trauma caused by traditional healers as a distinct fistula etiology. Diverse causes of fistula call for multi-pronged strategies to reduce fistula incidence.
Assuntos
Fístula , Infecções por HIV , Feminino , Humanos , Estudos Retrospectivos , Etiópia , GenitáliaRESUMO
INTRODUCTION: Ureteric injuries are among the most serious complications of pelvic surgery. The incidence in low-resource settings is not well documented. METHODS: This retrospective review analyzes a cohort of 365 ureteric injuries with ureterovaginal fistulas in 353 women following obstetric and gynecologic operations in 11 countries in Africa and Asia, all low-resource settings. The patients with ureteric injury were stratified into three groups according to the initial surgery: (a) obstetric operations, (b) gynecologic operations, and (c) vesicovaginal fistula (VVF) repairs. RESULTS: The 365 ureteric injuries in this series comprise 246 (67.4%) after obstetric procedures, 65 (17.8%) after gynecologic procedures, and 54 (14.8%) after repair of obstetric fistulas. Demographic characteristics show clear differences between women with iatrogenic injuries and women with obstetric fistulas. The study describes abdominal ureter reimplantation and other treatment procedures. Overall surgical results were good: 92.9% of women were cured (326/351), 5.4% were healed with some residual incontinence (19/351), and six failed (1.7%). CONCLUSIONS: Ureteric injuries after obstetric and gynecologic operations are not uncommon. Unlike in high-resource contexts, in low-resource settings obstetric procedures are most often associated with urogenital fistula. Despite resource limitations, diagnosis and treatment of ureteric injuries is possible, with good success rates. Training must emphasize optimal surgical techniques and different approaches to assisted vaginal delivery.
Assuntos
Parto Obstétrico/efeitos adversos , Fístula/epidemiologia , Procedimentos Cirúrgicos em Ginecologia/efeitos adversos , Doença Iatrogênica/epidemiologia , Ureter/lesões , Sistema Urogenital/lesões , Feminino , Fístula/etiologia , Procedimentos Cirúrgicos em Ginecologia/estatística & dados numéricos , Humanos , Gravidez , Estudos Retrospectivos , Doenças Ureterais/epidemiologia , Doenças Ureterais/etiologiaRESUMO
INTRODUCTION AND HYPOTHESIS: Genitourinary fistula poses a public health challenge in areas where women have inadequate access to quality emergency obstetric care. Fistulas typically develop during prolonged, obstructed labor, but providers can also inadvertently cause a fistula when performing obstetric or gynecological surgery. METHODS: This retrospective study analyzes 805 iatrogenic fistulas from a series of 5,959 women undergoing genitourinary fistula repair in 11 countries between 1994 and 2012. Injuries fall into three categories: ureteric, vault, and vesico-[utero]/-cervico-vaginal. This analysis considers the frequency and characteristics of each type of fistula and the risk factors associated with iatrogenic fistula development. RESULTS: In this large series, 13.2 % of genitourinary fistula repairs were for injuries caused by provider error. A range of cadres conducted procedures resulting in iatrogenic fistula. Four out of five iatrogenic fistulas developed following surgery for obstetric complications: cesarean section, ruptured uterus repair, or hysterectomy for ruptured uterus. Others developed during gynecological procedures, most commonly hysterectomy. Vesico-[utero]/-cervico-vaginal fistulas were the most common (43.6 %), followed by ureteric injuries (33.9 %) and vault fistulas (22.5 %). One quarter of women with iatrogenic fistulas had previously undergone a laparotomy, nearly always a cesarean section. Among these women, one quarter had undergone more than one previous cesarean section. CONCLUSIONS: Women with previous cesarean sections are at an increased risk of iatrogenic injury. Work environments must be adequate to reduce surgical error. Training must emphasize the importance of optimal surgical techniques, obstetric decision-making, and alternative ways to deliver dead babies. Iatrogenic fistulas should be recognized as a distinct genitourinary fistula category.
Assuntos
Cesárea/efeitos adversos , Parto Obstétrico/efeitos adversos , Fístula/epidemiologia , Procedimentos Cirúrgicos em Ginecologia/efeitos adversos , Histerectomia/efeitos adversos , Doença Iatrogênica/epidemiologia , Sistema Urogenital/lesões , Adolescente , Adulto , Idoso , Feminino , Fístula/etiologia , Saúde Global , Humanos , Incidência , Internacionalidade , Pessoa de Meia-Idade , Estudos Retrospectivos , Doenças Ureterais/epidemiologia , Doenças Ureterais/etiologia , Fístula Vaginal/epidemiologia , Fístula Vaginal/etiologia , Fístula Vesicovaginal/epidemiologia , Fístula Vesicovaginal/etiologia , Adulto JovemRESUMO
OBJECTIVE: To examine characteristics associated with remaining married with fistula. DESIGN: Retrospective record review and logistic regression. SETTING: Tanzania, Uganda, Kenya, Malawi, Zambia, Rwanda, Ethiopia, Somalia and South Sudan. PARTICIPANTS: Women who developed fistula during childbirth (1975-2017) and sought treatment (1994-2017). OUTCOME MEASURE: Self-reported status of living with original husband at time of presentation for fistula repair. RESULTS: Over half of the women lived with their husbands at the time of fistula treatment (57.2%, 3375/5903). The strongest predictor of remaining married with fistula was either parity at fistula development (adjusted odds ratio [AOR] 1.4-4.4) or living kids at fistula repair (among women who had not given birth between fistula development and repair) (AOR 1.7-4.9). Predicted probability of remaining married declined sharply over the first 2 years of incontinence, levelling out thereafter. Predicted probability of remaining married was lower for women with both urinary and faecal incontinence (AOR 0.68) as compared with women with urinary incontinence alone. Probability of remaining married with fistula declined over time (AOR 1.03-0.57). The woman's education was not a statistically significant predictor, but the odds of remaining married were 26% higher if the husband had any formal schooling. CONCLUSION: Most husbands do not abandon wives with fistula following childbirth. Treatment, counselling, social support and rehabilitation must consider the circumstances of each woman, engaging men as partners where appropriate. Communities and facilities offering fistula repair services should stress the importance of early intervention.
Assuntos
Fístula , Incontinência Urinária , Etiópia/epidemiologia , Feminino , Genitália , Humanos , Masculino , Estado Civil , Casamento , Gravidez , Estudos Retrospectivos , Incontinência Urinária/epidemiologia , Incontinência Urinária/etiologiaRESUMO
The size or shape of an object, its perceptual features, determine the patterning of an arm and hand action involving that object. Little is known about the role played by the taxonomic semantic attributes of an object for perceptuomotor processing. In this study we investigated whether the semantic relationship between two target stimuli influences the kinematics of a bilateral reach-to-grasp action. The results showed that reach-to-grasp movements preceding the action of putting living-thing pairs together were faster, and showed earlier settings of reach and grasp temporal parameters, than movements involving pairs of non-living things. It is hypothesized that this reflects the recruitment of different categorical perceptuomotor pathways.
Assuntos
Braço/fisiologia , Força da Mão/fisiologia , Mãos/fisiologia , Movimento/fisiologia , Semântica , Adulto , Humanos , Percepção Visual/fisiologiaRESUMO
This study examined the self-concepts of elementary school children in Grades 2, 4, 6, and 8, from two West African nations, Ghana and Gambia. Measures of self-concept in the areas of physical maturity, peer relations, academic success, and school adaptiveness were obtained from 195 Ghanaian and 156 Gambian students. The mean scores of the students were subjected to a series of three-way analyses of variance (ANOVAs). The independent variables were sex, grade level, and nationality. The overall analyses revealed grade level as the most potent variable in the self-concept development of both groups, whereas the sex variable indicated interaction with grade level only in Gambian children. The self-esteem of the children in both nations in the areas of physical maturity, peer relations, and academic success was relatively high and stable. Self-concept developmental patterns showed differences across grade levels in the four self-concept areas being tested.
Assuntos
Comparação Transcultural , Desenvolvimento da Personalidade , Autoimagem , Criança , Feminino , Gâmbia , Gana , Humanos , Masculino , Testes de Personalidade , PsicometriaAssuntos
Complicações do Trabalho de Parto/cirurgia , Sinfisiotomia/educação , Uretra/lesões , Fístula da Bexiga Urinária/cirurgia , Bexiga Urinária/lesões , Adolescente , República Democrática do Congo , Feminino , Humanos , Gravidez , Sinfisiotomia/efeitos adversos , Fístula da Bexiga Urinária/etiologia , Adulto JovemRESUMO
The effect of graded doses of irradiation (cobalt-60) on the morphology of McCoy cells was analyzed, and 4,000 to 5,000 r was selected as a satisfactory dose for production of giant cells. The susceptibility of radiation-induced giant cells to chlamydial infection was compared with that of nonirradiated cells by using three strains of Chlamydia trachomatis and one of C. psittaci. Monolayers of giant cells were more susceptible than normal McCoy cells as indicated by (i) greater numbers of inclusions (four- to eightfold) per unit area of monolayer, (ii) larger inclusions (fourfold greater in area), (iii) higher infective titers (1 log or more greater) of harvested cells, and (iv) greater ease of promoting a second cycle of growth. Graded doses of irradiation were applied also to mouse fibroblast (L) cells, and a similar increase in susceptibility to chlamydial infection was noted. It is concluded that giant cells produced by irradiation possess advantages over nonirradiated cells in culture for growth of Chlamydia.