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1.
J Cancer Educ ; 39(4): 360-367, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38506985

RESUMO

A critical shortage of skilled healthcare workers is a primary cause of disparate global cancer outcomes. We report participant evaluation of a multidisciplinary preceptorship program. In collaboration with the city of Kumasi, Ghana, Mayo Clinic and the City Cancer Challenge hosted a preceptorship program for comprehensive multidisciplinary breast and cervix cancer training. A total of 14 healthcare workers from Kumasi received two weeks of training at Mayo Clinic in November and December 2021. Each participant and preceptor were requested to complete an anonymous post-participation survey. Of the 14 trainee participants, 10 (71%) completed the survey. All respondents found the program "valuable and applicable to their clinical practice." Ninety percent reported they were able to "review effective and critical elements in the development and expansion of the multidisciplinary team" and able to "solve practical clinical cases as a team". General themes of satisfaction included: (1) organization and administration, (2) clinical observations and demonstrations, (3) guidelines development, and (4) recognizing the central importance of cultivating a team-based approach. Of the 40 preceptors, 16 (40%) completed the survey. All respondents reported they felt the training would meaningfully "influence patient care in Ghana", that participation "added value or joy to their clinical practice," and all wished to "participate in future preceptorship programs". After a focused two-week program, trainees reported high satisfaction, usefulness from observing specialized cancer care, and value in closely observing a multidisciplinary oncology team. Preceptors reported the experience added joy and perspective to their clinical practice and wished to participate in future programs.


Assuntos
Oncologia , Preceptoria , Humanos , Gana , Oncologia/educação , Feminino , Pessoal de Saúde/educação , Equipe de Assistência ao Paciente , Inquéritos e Questionários , Masculino , Avaliação de Programas e Projetos de Saúde , Adulto , Neoplasias da Mama
2.
BMC Cancer ; 20(1): 1011, 2020 Oct 19.
Artigo em Inglês | MEDLINE | ID: mdl-33076850

RESUMO

BACKGROUND: About 85% of breast cancer patients attending Komfo Anokye Teaching Hospital (KATH), Ghana, present with stage III/IV disease. In spite of great investments into the early diagnosis and management of breast cancer, late presentation persists and poses a barrier to realising the possible benefits of the gains made in breast cancer management. This study assessed the symptom appraisal and medical health seeking behaviour of women with either locally advanced or metastatic breast cancer attending breast clinic at KATH. METHOD: In-depth interviews of women presenting with clinical stage III/IV breast cancer were conducted to explore the women's care seeking pathways after symptom identification until arrival at KATH from May 2015 to March 2016. Thematic data analysis was conducted using the Andersen behavioural model for health service use. RESULTS: Fifteen women aged 24-79 years were interviewed. The time from symptom identification to reporting to KATH was 4-24 months. The initial symptom was a breast lump or breast swelling which all the women identified themselves. These were initially appraised as not serious because most importantly, they did not interfere with their daily function. Symptom progression such as prevented them from undertaking their usual economic, social and family function triggered seeking care from health facilities. The availability of money to pay for care and diagnostic investigations influenced the time taken to navigate the referral pathway. While the women initially deferred healthcare for reasons related to their ability to perform economic, family and social roles, ultimately, aggressively pursuing healthcare was also for the same economic, family and social reasons or goals. CONCLUSION: Deciding to seek care and pursue treatment for breast cancer symptoms may be much more complicated than it appears. Economic, family and social function significantly drive the health seeking process both at the personal and health facility phases of health seeking. Breast cancer education messages must be adapted to incorporate these functional goals and their influence on symptom appraisal and decision making to seek help and not just focus on the breast symptom as an isolated entity.


Assuntos
Neoplasias da Mama/diagnóstico , Neoplasias da Mama/psicologia , Diagnóstico Tardio/estatística & dados numéricos , Comportamento de Busca de Ajuda , Adulto , Idoso , Autoexame de Mama , Tomada de Decisões , Diagnóstico Tardio/prevenção & controle , Feminino , Gana , Hospitais de Ensino , Humanos , Pessoa de Meia-Idade , Metástase Neoplásica , Estadiamento de Neoplasias , Aceitação pelo Paciente de Cuidados de Saúde , Educação de Pacientes como Assunto , Fatores Socioeconômicos , Inquéritos e Questionários
3.
Ann Surg ; 270(3): 484-492, 2019 09.
Artigo em Inglês | MEDLINE | ID: mdl-31356281

RESUMO

OBJECTIVE: To investigate subtype-specific risk of germline alleles associated with triple negative breast cancer (TNBC) in African ancestry populations. BACKGROUND: Breast cancer (BC) mortality is higher in African American (AA) compared to White American (WA) women; this disparity is partly explained by 2-fold higher TNBC incidence. METHODS: We used a surgically maintained biospecimen cohort of 2884 BC cases. Subsets of the total (760 AA; 962 WA; 910 West African/Ghanaian; 252 East African/Ethiopian) were analyzed for genotypes of candidate alleles. A subset of 417 healthy controls were also genotyped, to measure associations with overall BC risk and TNBC. RESULTS: TNBC frequency was highest in Ghanaian and AA cases (49% and 44% respectively; P < 0.0001) and lowest in Ethiopian and WA cases (17% and 24% respectively; P < 0.0001). TNBC cases had higher West African ancestry than non-TNBC (P < 0.0001). Frequency of the Duffy-null allele (rs2814778; an African ancestral variant adopted under selective pressure as protection against malaria) was associated with TNBC-specific risk (P < 0.0001), quantified West African Ancestry (P < 0.0001) and was more common in AA, Ghanaians, and TNBC cases. Additionally, rs4849887 was significantly associated with overall BC risk, and both rs2363956 and rs13000023 were associated with TNBC-specific risk, although none as strongly as the Duffy-null variant. CONCLUSIONS: West African ancestry is strongly correlated with TNBC status, as well as germline variants related to BC risk. The Duffy-null allele was associated with TNBC risk in our cohort.


Assuntos
Negro ou Afro-Americano/genética , Suscetibilidade a Doenças/epidemiologia , Mutação em Linhagem Germinativa/genética , Receptor ErbB-2/genética , Neoplasias de Mama Triplo Negativas/genética , Adulto , África Subsaariana/etnologia , Idoso , Estudos de Casos e Controles , Bases de Dados Factuais , Feminino , Gana/etnologia , Humanos , Incidência , Internacionalidade , Pessoa de Meia-Idade , Receptores de Estrogênio/genética , Receptores de Progesterona/genética , Medição de Risco , Neoplasias de Mama Triplo Negativas/etnologia , Neoplasias de Mama Triplo Negativas/patologia , Estados Unidos
4.
BMC Endocr Disord ; 19(1): 27, 2019 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-30823912

RESUMO

BACKGROUND: Diabetes-related lower limb amputations (LLA) are associated with significant morbidity and mortality. Although the incidence has decreased over the past two decades in most High-Income Countries, the situation in Low-Middle Income Countries (LMIC), especially those in sub-Saharan Africa (SSA) is not clear. We have determined the incidence and determinants of diabetes-related LLA in Ghana. METHODS: This was a tertiary-care-based retrospective cohort study involving patients enrolled in the diabetes clinic of Komfo Anokye Teaching Hospital, Ghana from 1st January 2010 to 31st December 2015 after a median follow-up of 4.2 years. Demographic characteristics and clinical variables at baseline were recorded. The primary outcome was new diabetes-related LLA in each year under study. Cox proportional hazard regression models were used to describe the associations of diabetes-related LLA. RESULTS: The mean age at enrolment for the cohort was 55.9 ± 14.6 years, with a female preponderance (62.1%). The average incidence rate of diabetes-related LLA was 2.4 (95% CI:1.84-5.61) per 1000 follow-up years: increasing from 0.6% (95% CI:0.21-2.21) per 1000 follow up years in 2010 to 10.9% (95% CI:6.22-12.44) per 1000 follow-up years in 2015. Diabetes-related LLA was associated with increased age at enrollment (for every 10 year increase in age: HR: 1.11, CI: 1.06-1.22, p < 0.001), male gender (HR: 3.50, CI:2.88-5.23, p < 0.01), type 2 diabetes (HR 3.21, CI: 2.58-10.6, p < 0.001), high Body Mass Index (HR: 3.2, CI: 2.51-7.25 p < 0.001), poor glycemic control (for a percent increase in HbA1c, HR:1.11, CI:1.05-1.25, p = 0.03), hypertension (HR:1.14, CI:1.12-3.21 p < 0.001), peripheral sensory neuropathy (HR:6.56 CI:6.21-8.52 p < 0.001) and peripheral vascular disease (HR: 7.73 CI: 4.39-9.53, p < 0.001). CONCLUSION: The study confirms a high incidence of diabetes related-LLA in Ghana. Interventions aimed at addressing systemic and patient-level barriers to good vascular risk factor control and proper foot care for diabetics should be introduced in LMICs to stem the tide of the increasing incidence of LLA.


Assuntos
Amputação Cirúrgica/estatística & dados numéricos , Diabetes Mellitus Tipo 2/complicações , Pé Diabético/epidemiologia , Extremidade Inferior/fisiopatologia , Pé Diabético/etiologia , Feminino , Seguimentos , Gana/epidemiologia , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos
5.
Ann Surg Oncol ; 23(12): 3843-3849, 2016 11.
Artigo em Inglês | MEDLINE | ID: mdl-27469125

RESUMO

INTRODUCTION: Triple-negative breast cancer (TNBC) is more common among African American (AA) and western sub-Saharan African breast cancer (BC) patients compared with White/Caucasian Americans (WA) and Europeans. Little is known about TNBC in east Africa. METHODS: Invasive BC diagnosed 1998-2014 were evaluated: WA and AA patients from the Henry Ford Health System in Detroit, Michigan; Ghanaian/west Africans from the Komfo Anokye Teaching Hospital in Kumasi, Ghana; and Ethiopian/east Africans from the St. Paul's Hospital Millennium Medical College in Addis Ababa, Ethiopia. Histopathology and immunohistochemistry for estrogen receptor (ER), progesterone receptor (PR), and HER2/neu expression was performed in Michigan on formalin-fixed, paraffin-embedded samples from all cases. RESULTS: A total of 234 Ghanaian (mean age 49 years), 94 Ethiopian (mean age 43 years), 272 AA (mean age 60 years), and 321 WA (mean age 62 years; p = 0.001) patients were compared. ER-negative and TNBC were more common among Ghanaian and AA compared with WA and Ethiopian cases (frequency ER-negativity 71.1 and 37.1 % vs. 19.8 and 28.6 % respectively, p < 0.0001; frequency TNBC 53.2 and 29.8 % vs. 15.5 and 15.0 %, respectively, p < 0.0001). Among patients younger than 50 years, prevalence of TNBC remained highest among Ghanaians (50.8 %) and AA (34.3 %) compared with WA and Ethiopians (approximately 16 % in each; p = 0.0002). CONCLUSIONS: This study confirms an association between TNBC and West African ancestry; TNBC frequency among AA patients is intermediate between WA and Ghanaian/West Africans consistent with genetic admixture following the west Africa-based trans-Atlantic slave trade. TNBC frequency was low among Ethiopians/East Africans; this may reflect less shared ancestry between AA and Ethiopians.


Assuntos
Negro ou Afro-Americano , Neoplasias de Mama Triplo Negativas/etnologia , Neoplasias de Mama Triplo Negativas/metabolismo , População Branca , Adulto , Negro ou Afro-Americano/estatística & dados numéricos , Etiópia , Feminino , Gana/epidemiologia , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Fenótipo , Prevalência , Receptor ErbB-2/metabolismo , Receptores de Estrogênio/metabolismo , Receptores de Progesterona/metabolismo , Neoplasias de Mama Triplo Negativas/patologia , Estados Unidos/epidemiologia , População Branca/estatística & dados numéricos
6.
Ann Surg Oncol ; 22(12): 3831-5, 2015 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-25743329

RESUMO

BACKGROUND: The androgen receptor (AR) is a commonly-expressed hormone receptor in breast cancer and may be a marker of response to targeted anti-androgen therapy, a particularly attractive option for triple-negative breast cancer (TNBC). Gene expression studies suggest that ARs may distinguish a luminal/AR TNBC subtype from stem cell-like subtypes. TNBC frequency is two to three times higher in African American and African breast cancers compared with White American and European breast cancers, yet little is known regarding TNBC subtypes in high-frequency African-ancestry populations. We evaluated ARs and the mammary stem cell marker aldehyde dehydrogenase 1 (ALDH1) among breast cancers from Ghana, Africa. METHODS: Overall, 147 formalin-fixed, paraffin-embedded invasive breast cancers from the Komfo Anoyke Teaching Hospital in Ghana were studied at the University of Michigan, and analyzed immunohistochemically for estrogen receptor (ER), progesterone receptor (PR), HER2/neu, ALDH1, and AR expression. RESULTS: The median age of patients was 45 years. Only 31 cases (21 %) were ER-positive, and 14 (10 %) were HER2-positive; 89 (61 %) were TNBCs. For the entire group, 44 % were AR-positive and 45 % were ALDH1-positive. ER/PR-positive tumors were more likely to be AR-positive compared with ER/PR-negative tumors (87 vs. 26 %; p < 0.0001), but there was no association between ALDH1 and AR expression. Among the TNBC cases, 45 % were ALDH1-positive and 24 % were AR-positive. ALDH1 positivity was associated with AR positivity within the subset of TNBC (36 vs. 14 %; p = 0.019). CONCLUSION: We confirmed other studies showing a high frequency of TNBC in Africa. Surprisingly, ALDH1 was found to correlate with AR expression among TNBC, suggesting that novel TNBC subtypes may exist among populations with African ancestry.


Assuntos
Carcinoma Ductal de Mama/química , Carcinoma Lobular/química , Isoenzimas/análise , Receptores Androgênicos/análise , Retinal Desidrogenase/análise , Neoplasias de Mama Triplo Negativas/química , Adulto , Família Aldeído Desidrogenase 1 , Carcinoma Ductal de Mama/epidemiologia , Carcinoma Lobular/epidemiologia , Feminino , Gana/epidemiologia , Humanos , Pessoa de Meia-Idade , Prevalência , Receptor ErbB-2/análise , Receptores de Estrogênio/análise , Receptores de Progesterona/análise , Neoplasias de Mama Triplo Negativas/epidemiologia
7.
Dig Surg ; 32(5): 389-96, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26315569

RESUMO

INTRODUCTION: This study aimed to describe the epidemiology and outcomes of intestinal obstruction at a tertiary hospital in Ghana over time. METHODS: Records of all patients admitted to a tertiary hospital from 2007 to 2011 with intestinal obstruction were identified using ICD-9 codes. Sociodemographic and clinical data were compared to a previously published series of intestinal obstructions from 1998 to 2003. Factors contributing to longer than expected hospital stays and death were further examined. RESULTS: Of the 230 records reviewed, 108 patients (47%) had obstructions due to adhesions, 50 (21%) had volvulus, 22 (7%) had an ileus from perforation and 14 (6%) had intussusception. Hernia fell from the 1st to the 8th most common cause of obstruction. Patients with intestinal obstruction were older in 2007-2011 compared to those presenting between 1998 and 2003 (p < 0.001); conditions associated with older age (e.g., volvulus and neoplasia) were more frequently encountered (p < 0.001). Age over 50 years was strong factor of in-hospital death (adjusted OR 14.2, 95% CI 1.41-142.95). CONCLUSION: Efforts to reduce hernia backlog and expand the surgical workforce may have had an effect on intestinal obstruction epidemiology in Ghana. Increasing aging-related pathology and a higher risk of death in elderly patients suggest that improvement in geriatric surgical care is urgently needed.


Assuntos
Obstrução Intestinal/epidemiologia , Adulto , Distribuição por Idade , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Fortalecimento Institucional/tendências , Feminino , Gana/epidemiologia , Mortalidade Hospitalar , Humanos , Obstrução Intestinal/etiologia , Obstrução Intestinal/cirurgia , Masculino , Pessoa de Meia-Idade , Dinâmica Populacional , Estudos Retrospectivos , Centros de Atenção Terciária
8.
Sci Rep ; 14(1): 2704, 2024 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-38302488

RESUMO

Breast cancer is increasingly common among young women in Ghana. BCa is heterogeneous with unique traits that impact causes, prognostic, and predictive outcomes of patients before and after menopause. However, limited evidence exists on differences between young premenopausal (YPM) and postmenopausal cases in Ghana. This study compared breast tumour characteristics between YPM women (under 35 years) and postmenopausal women. We conducted a prospective cross-sectional study involving 140 BCa-diagnosed women at the Breast Care Clinic of Komfo Anokye Teaching Hospital (KATH), Kumasi from November 2019 to June 2021. Thirty-one (22.1%) of participants were YPM and 109 (77.9%) were postmenopausal. The median ages for YPM and postmenopausal were 32.0 (range: 25.0-35.0) and 57.0 (48.0-86.0) respectively. Invasive carcinoma was the most common histological type (97.1%). Left tumour location was the most frequent in both groups (51.6% for YPM and 51.8% for postmenopausal). Lumps detected were frequently in the outer upper quadrant in both groups (61.3% and 56.0%). The majority of the YPM women (80.7%) and postmenopausal women (87.0%) had stage III and IV diseases. Most YPM (64.5%) and postmenopausal women (64.4%) exhibited triple-negative breast cancer (TNBC). Both YPM 13 (56.6%) and postmenopausal participants 40 (56.3%) exhibited a predominantly partial response to neo-adjuvant chemotherapy but YPM women (21.7%) experienced disease progression than the postmenopausal women (12.7%). The study highlights consistent tumour characteristics and advanced clinical stages at diagnosis in both groups with a higher prevalence of TNBC. TNBC and HER2+ subtypes respond better to Anthracycline-based neoadjuvant chemotherapy. Establishing Breast Care Clinics in district and regional hospitals for early detection is crucial and further studies are warranted to understand the higher TNBC prevalence in black Africans and re-evaluate breast education programs to address the persistently late presentations.


Assuntos
Neoplasias da Mama , Neoplasias de Mama Triplo Negativas , Humanos , Feminino , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/epidemiologia , Neoplasias da Mama/terapia , Neoplasias de Mama Triplo Negativas/patologia , Pós-Menopausa , Gana/epidemiologia , Estudos Transversais , Estudos Prospectivos , Receptor ErbB-2/análise
9.
Cancer Lett ; 584: 216608, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38199587

RESUMO

Poly (ADP-ribose) polymerase inhibitors (PARPi) are used for patients with BRCA1/2 mutations, but patients with other mutations may benefit from PARPi treatment. Another mutation that is present in more cancers than BRCA1/2 is mutation to the TP53 gene. In 2D breast cancer cell lines, mutant p53 (mtp53) proteins tightly associate with replicating DNA and Poly (ADP-ribose) polymerase (PARP) protein. Combination drug treatment with the alkylating agent temozolomide and the PARPi talazoparib kills mtp53 expressing 2D grown breast cancer cell lines. We evaluated the sensitivity to the combination of temozolomide plus PARPi talazoparib treatment to breast and lung cancer patient-derived tumor organoids (PDTOs). The combination of the two drugs was synergistic for a cytotoxic response in PDTOs with mtp53 but not for PDTOs with wtp53. The combination of talazoparib and temozolomide induced more DNA double-strand breaks in mtp53 expressing organoids than in wild-type p53 expressing organoids as shown by increased γ-H2AX protein expression. Moreover, breast cancer tissue microarrays (TMAs) showed a positive correlation between stable p53 and high PARP1 expression in sub-groups of breast cancers, which may indicate sub-classes of breast cancers sensitive to PARPi therapy. These results suggest that mtp53 could be a biomarker to predict response to the combination of PARPi talazoparib-temozolomide treatment.


Assuntos
Antineoplásicos , Neoplasias da Mama , Neoplasias Pulmonares , Feminino , Humanos , Antineoplásicos/farmacologia , Antineoplásicos/uso terapêutico , Proteína BRCA1/genética , Proteína BRCA1/metabolismo , Proteína BRCA2/genética , Neoplasias da Mama/tratamento farmacológico , Neoplasias da Mama/genética , Neoplasias da Mama/patologia , Linhagem Celular Tumoral , DNA , Genes p53 , Neoplasias Pulmonares/genética , Mutação , Inibidores de Poli(ADP-Ribose) Polimerases/uso terapêutico , Poli(ADP-Ribose) Polimerases/metabolismo , Temozolomida/farmacologia , Temozolomida/uso terapêutico , Proteína Supressora de Tumor p53/genética , Proteína Supressora de Tumor p53/metabolismo
10.
Clin Case Rep ; 11(2): e6906, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-36762143

RESUMO

Upper GI bleeding from GIST is rare in Africa. The C-kit-negative variant is uncommon worldwide. We report a case of a 42-year-old woman managed for upper GI bleeding secondary to stomach GIST, negative for CD117 but positive for DOG 1 and CD 34. The 1-year postsurgery review is uneventful.

11.
bioRxiv ; 2023 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-38076873

RESUMO

Poly (ADP-ribose) polymerase inhibitors (PARPi) are used for patients with BRCA1/2 mutations, but patients with other mutations may benefit from PARPi treatment. Another mutation that is present in more cancers than BRCA1/2 is mutation to the TP53 gene. In 2D breast cancer cell lines, mutant p53 (mtp53) proteins tightly associate with replicating DNA and Poly (ADP-ribose) polymerase (PARP) protein. Combination drug treatment with the alkylating agent temozolomide and the PARPi talazoparib kills mtp53 expressing 2D grown breast cancer cell lines. We evaluated the sensitivity to the combination of temozolomide plus PARPi talazoparib treatment to breast and lung cancer patient-derived tumor organoids (PDTOs). The combination of the two drugs was synergistic for a cytotoxic response in PDTOs with mtp53 but not for PDTOs with wtp53. The combination of talazoparib and temozolomide induced more DNA double-strand breaks in mtp53 expressing organoids than in wild-type p53 expressing organoids as shown by increased γ-H2AX protein expression. Moreover, breast cancer tissue microarrays (TMAs) showed a positive correlation between stable p53 and high PARP1 expression in sub-groups of breast cancers, which may indicate sub-classes of breast cancers sensitive to PARPi therapy. These results suggest that mtp53 could be a biomarker to predict response to the combination of PARPi talazoparib-temozolomide treatment.

12.
BMC Res Notes ; 16(1): 318, 2023 Nov 06.
Artigo em Inglês | MEDLINE | ID: mdl-37932827

RESUMO

BACKGROUND: Gastrointestinal Stromal Tumour is a rare but potentially curable tumour of the gastrointestinal tract accounting for up to 1% of all gastrointestinal tumours. The discovery of Imatinib mesylate, a novel tyrosine kinase inhibitor has improved the chances even for unresectable, recurrent, or metastatic diseases. METHODS: This study sought to document the clinical and pathological characteristics of GISTs from two tertiary hospitals in Ghana that have undergone immunohistochemistry confirmation between 2014 and 2021. RESULTS: The median age of the subjects was 50 years with most of them (28.0%) being above 61 years. There were more females than males (64.0% vs. 36.0%). Abdominal mass and abdominal pain made up the majority of the clinical presentations. The majority of the subjects had partial gastrectomy (32.0%) which was followed by wedge resection (28.0%). Appendectomy and sleeve gastrectomy were the least performed procedures (8% each). Four of the 25 patients (16.0%) had resections of involved contiguous organs done with splenectomy being the most common procedure. The majority of GISTs were found in the stomach (68.0%) followed by the appendix (12.0%) and small bowel (12.0%). Gastrointestinal bleeding (55.8%) and abdominal pain (38.5%) were the most reported symptoms. Free resection margins were observed in 84.0% of the subjects and only 3/25 (12.0%) experienced tumour recurrence. CONCLUSION: GIST is a potentially curable tumour that once was obscure but currently gaining popularity. Surgical resection offers the hope of a cure for localized disease while targeted therapies is a viable option for recurrent, metastatic, or unresectable tumours.


Assuntos
Antineoplásicos , Neoplasias Gastrointestinais , Tumores do Estroma Gastrointestinal , Masculino , Feminino , Humanos , Pessoa de Meia-Idade , Tumores do Estroma Gastrointestinal/patologia , Antineoplásicos/uso terapêutico , Gana , Recidiva Local de Neoplasia , Neoplasias Gastrointestinais/terapia , Dor Abdominal
13.
Kardiochir Torakochirurgia Pol ; 19(1): 28-35, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-35414817

RESUMO

Introduction: Diaphragmatic injuries may be associated with thoracoabdominal blunt or penetrating traumas. The diagnosis is often delayed, despite the availability of several medical imaging modalities. The surgical management remains controversial, in terms of the choice of surgical approach and the surgical repair technique. Aim: To evaluate the surgical management experience of traumatic diaphragmatic rupture in our institution over a ten-year period in the local setting of a tertiary hospital in Ghana. Material and methods: A retrospective review of the medical records of patients who had undergone surgery for traumatic diaphragmatic rupture. Results: A total of 35 cases of diaphragmatic rupture were seen from thoracoabdominal injuries. There were 29 (82.86%) males. The mean age was 36.25 ±12.98 years with a range of 16-65 years. There were 3 cases of right diaphragmatic rupture and 32 cases of left diaphragmatic rupture. Penetrating chest injury caused 18 (51%) of the ruptures. The leading cause of injury was road traffic accident, which constituted 48.57%, closely followed by stab (25.71%), gunshot injuries (14.29%) and impalement injury (11.48%). Seventeen (49%) patients had their diaphragmatic ruptures repaired via laparotomy and the remaining 18 (51%) via thoracotomy. The commonest herniated organ was the stomach. One patient died in theatre from cardiac arrest after failed intubation. Conclusions: Surgery is the treatment of choice in traumatic diaphragmatic rupture and it is repaired via laparotomy or thoracotomy based on the presence or absence of concomitant abdominal injury and the presence or absence of a cardiothoracic surgeon.

14.
JCO Glob Oncol ; 8: e2200149, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36252159

RESUMO

PURPOSE: Delivering high-quality cancer care to patients through a multidisciplinary team (MDT) care approach remains a challenge, particularly in low- and middle-income countries characterized by fragmented health systems and limited human resources for cancer care. City Cancer Challenge (C/Can) is supporting cities in low- and middle-income countries as they work to improve access to equitable quality cancer care. C/Can has developed an innovative methodology to address the MDT gap, piloted in four cities-Asunciòn, Cali, Kumasi, and Yangon. METHODS: Collaborating with a network of partners, C/Can and ASCO have developed a package of technical cooperation support focusing on two priority areas that have emerged as core needs: first developing consensus-based, city-wide patient management guidelines for the most common cancers and second, building capacity for the implementation of MDTs in institutions providing cancer care in the city. RESULTS: The real-time application of C/Can's MDT approach in Cali and Asuncion underlined the importance of engaging the right stakeholders early on and embedding MDT guidelines in local and national regulatory frameworks to achieve their sustainable uptake. The results in Cali and Asuncion were essential for informing the process in Yangon, asserting the clear benefits of city-to-city knowledge exchange. Finally, the global COVID-19 pandemic prompted a rapid adaptation of the methodology from an in-person to virtual format; the unexpected success of the virtual program in Kumasi has led to its application in subsequent C/Can cities. CONCLUSION: The application of C/Can's methodology in this first set of cities has reinforced not only the importance of both resource appropriate guidelines and a highly trained health workforce but also the need for commitment to work across institutions and disciplines.


Assuntos
COVID-19 , Neoplasias , COVID-19/epidemiologia , Cidades , Países em Desenvolvimento , Humanos , Neoplasias/epidemiologia , Neoplasias/terapia , Pandemias/prevenção & controle , Equipe de Assistência ao Paciente
15.
Cancer Discov ; 12(11): 2530-2551, 2022 11 02.
Artigo em Inglês | MEDLINE | ID: mdl-36121736

RESUMO

Women of sub-Saharan African descent have disproportionately higher incidence of triple-negative breast cancer (TNBC) and TNBC-specific mortality across all populations. Population studies show racial differences in TNBC biology, including higher prevalence of basal-like and quadruple-negative subtypes in African Americans (AA). However, previous investigations relied on self-reported race (SRR) of primarily U.S. populations. Due to heterogeneous genetic admixture and biological consequences of social determinants, the true association of African ancestry with TNBC biology is unclear. To address this, we conducted RNA sequencing on an international cohort of AAs, as well as West and East Africans with TNBC. Using comprehensive genetic ancestry estimation in this African-enriched cohort, we found expression of 613 genes associated with African ancestry and 2,000+ associated with regional African ancestry. A subset of African-associated genes also showed differences in normal breast tissue. Pathway enrichment and deconvolution of tumor cellular composition revealed that tumor-associated immunologic profiles are distinct in patients of African descent. SIGNIFICANCE: Our comprehensive ancestry quantification process revealed that ancestry-associated gene expression profiles in TNBC include population-level distinctions in immunologic landscapes. These differences may explain some differences in race-group clinical outcomes. This study shows the first definitive link between African ancestry and the TNBC immunologic landscape, from an African-enriched international multiethnic cohort. See related commentary by Hamilton et al., p. 2496. This article is highlighted in the In This Issue feature, p. 2483.


Assuntos
Neoplasias de Mama Triplo Negativas , Humanos , Feminino , Neoplasias de Mama Triplo Negativas/genética , Transcriptoma , Negro ou Afro-Americano/genética , Biologia
16.
Sci Rep ; 11(1): 9247, 2021 04 29.
Artigo em Inglês | MEDLINE | ID: mdl-33927264

RESUMO

Large-scale efforts to identify breast cancer (BC) risk alleles have historically taken place among women of European ancestry. Recently, there are new efforts to verify if these alleles increase risk in African American (AA) women as well. We investigated the effect of previously reported AA breast cancer and triple-negative breast cancer (TNBC) risk alleles in our African-enriched International Center for the Study of Breast Cancer Subtypes (ICSBCS) cohort. Using case-control, case-series and race-nested approaches, we report that the Duffy-null allele (rs2814778) is associated with TNBC risk (OR = 3.814, p = 0.001), specifically among AA individuals, after adjusting for self-indicated race and west African ancestry (OR = 3.368, p = 0.007). We have also validated the protective effect of the minor allele of the ANKLE1 missense variant rs2363956 among AA for TNBC (OR = 0.420, p = 0.005). Our results suggest that an ancestry-specific Duffy-null allele and differential prevalence of a polymorphic gene variant of ANKLE1 may play a role in TNBC breast cancer outcomes. These findings present opportunities for therapeutic potential and future studies to address race-specific differences in TNBC risk and disease outcome.


Assuntos
População Negra/genética , Sistema do Grupo Sanguíneo Duffy/genética , Endonucleases/genética , Receptores de Superfície Celular/genética , Neoplasias de Mama Triplo Negativas/genética , População Branca/genética , Alelos , Biomarcadores Tumorais/genética , Estudos de Casos e Controles , Estudos de Coortes , Feminino , Genótipo , Humanos , Internacionalidade , Pessoa de Meia-Idade , Fatores de Risco , Neoplasias de Mama Triplo Negativas/epidemiologia , Neoplasias de Mama Triplo Negativas/patologia
17.
Int Health ; 12(2): 107-115, 2020 02 12.
Artigo em Inglês | MEDLINE | ID: mdl-31251355

RESUMO

BACKGROUND: Endocrine disorders have been noted to be on the increase in the developing world, but little is known about their outcomes on the African continent. METHODS: We conducted a retrospective longitudinal study to evaluate the demographic characteristics and determinants of endocrine-related mortality among adult patients over 9 y in a leading tertiary hospital in Ghana. We determined the predictors of inpatient mortality using Kaplan-Meier survival curves and Cox proportional hazard regression analysis. RESULTS: Overall, 6265 patients (9.7% of all medical admissions) were admitted with various endocrine disorders during the period. The most common endocrine cause of hospitalisation was diabetes mellitus (86.0%), followed in order of decreasing frequency by thyroid disorders (7.7%) and miscellaneous disorders (1.4%). The overall crude mortality rate of endocrine admissions was 16.7%. Death was predicted by increasing age with an adjusted hazard ratio of 1.25 (95% confidence interval 1.15 to 1.65) for every 10-y increase in age. CONCLUSIONS: Almost one in six adults admitted with an endocrine disorder to a tertiary care centre in Ghana died in hospital, and many of the deaths were due to non-communicable disease complications. Enhanced public health disease prevention strategies and endocrine inpatient care processes are warranted.


Assuntos
Causas de Morte/tendências , Doenças do Sistema Endócrino/mortalidade , Doenças do Sistema Endócrino/terapia , Mortalidade Hospitalar/tendências , Idoso , Feminino , Gana/epidemiologia , Hospitalização/estatística & dados numéricos , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Modelos de Riscos Proporcionais , Estudos Retrospectivos , Fatores de Risco , Centros de Atenção Terciária
18.
Am J Surg ; 219(4): 563-565, 2020 04.
Artigo em Inglês | MEDLINE | ID: mdl-32008719

RESUMO

INTRODUCTION: Global health initiatives provide exciting opportunities for capacity-building in low- and middle-income countries but data regarding how African clinicians characterize the most effective partnerships are lacking. METHODS: We surveyed attendees at two "Breast Cancer in Africa" symposia sponsored through a surgeon-led global breast cancer research collaborative. Respondents ranked their preferences for needs from American global health partnerships. RESULTS: 399 African attendees responded (170 at the 2017 Ghana conference; 229 at the 2018 Ethiopia conference). Physicians comprised 41.1% of respondents; nurses 20.1% and medical students 27.6%. Ancillary hospital staff comprised the remaining 11.2%. Among clinicians, 75.7% ranked educational/training programs or donation of medical supplies as the highest-priority needs compared to only 20.4% ranking direct monetary support as the highest-priority need (P < 0.0001). CONCLUSIONS: Our survey study found that African clinicians prioritize training programs and donation of medical/hospital supplies above direct monetary support as their highest-value needs from global health initiatives.


Assuntos
Neoplasias da Mama , Fortalecimento Institucional , Saúde Global , Avaliação das Necessidades , África , Pesquisa Biomédica , Congressos como Assunto , Equipamentos e Provisões/provisão & distribuição , Feminino , Pessoal de Saúde/educação , Humanos , Intercâmbio Educacional Internacional , Oncologia/educação
19.
Diabet Foot Ankle ; 9(1): 1511678, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30202507

RESUMO

Background: Diabetic foot remains a challenge in most low-middle-income countries (LMICs). A severe deficit in data exists on them in sub-Saharan Africa (SSA). Up-to-date data on the longitudinal trajectories and determinants can provide a benchmark for reducing diabetic foot complications in SSA. Objective: The primary objective of this study was to estimate trends in the incidence of diabetic foot and determine predictors in an adult Ghanaian diabetes cohort. Design: The study is a retrospective longitudinal study over a 12 year period. Methods: We applied Poisson regression analysis and Cox proportional hazard models to demographic and clinical information obtained from patients who enrolled in a diabetes specialist clinic in Ghana from 2005 to 2016 to identify longitudinal trends in incidence and predictors of diabetic foot. Results: The study comprised 7383 patients (63.8% female, mean follow-up duration: 8.6 years). The mean incidence of foot disorders was 8.39% (5.27% males and 3.12% females). An increase in the incidence of diabetic foot ranging from 3.25% in 2005 to 12.57% in 2016, p < 0.001, was determined. Diabetic foot, with adjusted hazard ratio (HR; 95% confidence interval (CI)), was predicted by disease duration, that is, for every 5-year increase in diabetes duration: 2.56 (1.41-3.06); male gender: 3.51 (1.41-3.06); increased body mass index (BMI), that is, for every 5 kg/m2: 3.20 (2.51-7.52); poor glycaemic control, that is, for every percentage increase in HbA1c: 1.11 (1.05-2.25), hypertension: 1.14 (1.12-3.21); nephropathy: 1.15 (1.12-3.21); and previous foot disorders: 3.24 (2.12-7.21). Conclusions: We have found a trend towards an increased incidence of diabetic foot in an outpatient tertiary diabetes setting in Ghana. Systemic and individual-level factors aimed at preventive foot screening as well as vascular risk factor control should be intensified in diabetic patients in Ghana and other LMICs. Abbreviations: BMI: Body Mass Index, BP: Blood Pressure, CI: Confidence Interval, HR: Hazard Ratio, HbA1c: Glycated Hemoglobin, PAD: Peripheral Arterial Disease, NCDs: Non Communicable Disease, SSA: Sub Saharan Africa.

20.
J Diabetes Res ; 2018: 4783093, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29484302

RESUMO

BACKGROUND: Thyroid dysfunction is known to exaggerate the coronary heart disease (CHD) risk associated with type 2 diabetes mellitus (T2DM) among whites. The effect is yet to be studied among African populations. METHODS: This is a cross-sectional study involving 780 T2DM patients enrolled in a diabetes clinic in Kumasi, Ghana. CHD risk was estimated using the Framingham and UKPDS risk scores. Risks were categorised as low (<10%), intermediate (10-19%), and high (≥20%). Associations between metabolic risk factors, thyroid dysfunction, and CHD risk were measured using Spearman's partial correlation analysis while controlling for age and gender. Differences were considered statistically significant at p < 0.05. RESULTS: 780 T2DM patients (57.7% females), mean ± SD age of 57.4 ± 9.4 was analysed. The median (IQR) 10-year CHD score estimated using the Framingham and UKPDS risk engines for males and females was 12 (8-20), 9.4 (5.7-13.4), p < 0.0001 and 3 (1-6), 5.8 (3.4-9.6), p < 0.0001, respectively. Positive correlation was found between CHD risk and HbA1c, total cholesterol, low-density lipoprotein cholesterol, systolic blood pressure, and thyroid stimulating hormone. CONCLUSION: The presence of thyroid dysfunction significantly increased the CHD risk associated with T2DM patients in Ghana.


Assuntos
Doenças Cardiovasculares/epidemiologia , Diabetes Mellitus Tipo 2/epidemiologia , Doenças da Glândula Tireoide/epidemiologia , Adulto , Idoso , Pressão Sanguínea/fisiologia , Doenças Cardiovasculares/metabolismo , Doenças Cardiovasculares/fisiopatologia , Estudos Transversais , Diabetes Mellitus Tipo 2/complicações , Diabetes Mellitus Tipo 2/metabolismo , Diabetes Mellitus Tipo 2/fisiopatologia , Feminino , Gana/epidemiologia , Humanos , Masculino , Pessoa de Meia-Idade , Medição de Risco , Fatores de Risco , Doenças da Glândula Tireoide/complicações , Doenças da Glândula Tireoide/metabolismo , Doenças da Glândula Tireoide/fisiopatologia
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