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1.
Ann Surg Oncol ; 30(10): 6170-6175, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37454017

RESUMEN

INTRODUCTION: Breast implant-associated anaplastic large cell lymphoma (BIA-ALCL) is an uncommon type of non-Hodgkin lymphoma, associated with breast implant capsules. Despite improvements in our understanding of BIA-ALCL, communicating the prognosis to patients remains challenging due to limited long-term follow-up data. This has important implications for decision-making, including recommendations for subsequent reconstructive procedures. The aim of this study was to assess the longer-term oncological outcomes of patients receiving multidisciplinary treatment for BIA-ALCL. METHODS: This was a retrospective cohort study of BIA-ALCL patients treated at a tertiary referral unit. The data are presented using simple descriptive statistics. RESULTS: Between 2015 and 2022, 18 BIA-ALCL patients were treated at our institution. The median age at diagnosis was 48.5 (IQR 41-55) years. Ten patients developed BIA-ALCL after cosmetic breast augmentation, and 8 after breast reconstruction following mastectomy for cancer. All patients had a history of textured implant insertion. The median time from first implant surgery to diagnosis was 8.5 (IQR 7-12) years. All patients underwent en-bloc total capsulectomy with implant removal, and 2 received systemic therapy. Fifteen patients had Stage I (IA-IC) disease, 2 had Stage IIA and 1 Stage III BIA-ALCL, based on the TNM classification system. At a median follow-up of 45 (IQR 15-71) months, there were no episodes of local or systemic relapse or death. CONCLUSIONS: Surgical management for BIA-ALCL is sufficient in early-stage disease, and associated with excellent oncological outcomes. This information is reassuring for patients when discussing recurrence risk.


Asunto(s)
Implantación de Mama , Implantes de Mama , Neoplasias de la Mama , Linfoma Anaplásico de Células Grandes , Humanos , Adulto , Persona de Mediana Edad , Femenino , Implantes de Mama/efectos adversos , Linfoma Anaplásico de Células Grandes/etiología , Linfoma Anaplásico de Células Grandes/terapia , Estudios Retrospectivos , Neoplasias de la Mama/etiología , Neoplasias de la Mama/cirugía , Mastectomía/métodos , Recurrencia Local de Neoplasia/etiología , Recurrencia Local de Neoplasia/cirugía , Implantación de Mama/efectos adversos , Implantación de Mama/métodos
2.
Lancet Oncol ; 23(5): 682-690, 2022 05.
Artículo en Inglés | MEDLINE | ID: mdl-35397804

RESUMEN

BACKGROUND: Radiotherapy before mastectomy and autologous free-flap breast reconstruction can avoid adverse radiation effects on healthy donor tissues and delays to adjuvant radiotherapy. However, evidence for this treatment sequence is sparse. We aimed to explore the feasibility of preoperative radiotherapy followed by skin-sparing mastectomy and deep inferior epigastric perforator (DIEP) flap reconstruction in patients with breast cancer requiring mastectomy. METHODS: We conducted a prospective, non-randomised, feasibility study at two National Health Service trusts in the UK. Eligible patients were women aged older than 18 years with a laboratory diagnosis of primary breast cancer requiring mastectomy and post-mastectomy radiotherapy, who were suitable for DIEP flap reconstruction. Preoperative radiotherapy started 3-4 weeks after neoadjuvant chemotherapy and was delivered to the breast, plus regional nodes as required, at 40 Gy in 15 fractions (over 3 weeks) or 42·72 Gy in 16 fractions (over 3·2 weeks). Adverse skin radiation toxicity was assessed preoperatively using the Radiation Therapy Oncology Group toxicity grading system. Skin-sparing mastectomy and DIEP flap reconstruction were planned for 2-6 weeks after completion of preoperative radiotherapy. The primary endpoint was the proportion of open breast wounds greater than 1 cm width requiring a dressing at 4 weeks after surgery, assessed in all participants. This study is registered with ClinicalTrials.gov, NCT02771938, and is closed to recruitment. FINDINGS: Between Jan 25, 2016, and Dec 11, 2017, 33 patients were enrolled. At 4 weeks after surgery, four (12·1%, 95% CI 3·4-28·2) of 33 patients had an open breast wound greater than 1 cm. One (3%) patient had confluent moist desquamation (grade 3). There were no serious treatment-related adverse events and no treatment-related deaths. INTERPRETATION: Preoperative radiotherapy followed by skin-sparing mastectomy and immediate DIEP flap reconstruction is feasible and technically safe, with rates of breast open wounds similar to those reported with post-mastectomy radiotherapy. A randomised trial comparing preoperative radiotherapy with post-mastectomy radiotherapy is required to precisely determine and compare surgical, oncological, and breast reconstruction outcomes, including quality of life. FUNDING: Cancer Research UK, National Institute for Health Research.


Asunto(s)
Neoplasias de la Mama , Mamoplastia , Colgajo Perforante , Neoplasias de la Mama/radioterapia , Neoplasias de la Mama/cirugía , Estudios de Factibilidad , Femenino , Humanos , Masculino , Mamoplastia/efectos adversos , Mastectomía/efectos adversos , Colgajo Perforante/cirugía , Estudios Prospectivos , Calidad de Vida , Medicina Estatal
3.
Microsurgery ; 41(8): 787-791, 2021 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-34655246

RESUMEN

Revision surgery after gender-affirming genitoplasty is becoming more and more common as more patients gain access to surgical treatment. The complexity of genitoplasty and extensive dissection of delicate tissues predisposes patients to necrosis of the flap(s) employed, which can leave patients with complications ranging from poor aesthetics to total lack of genital sensation. The purpose of this report is to detail the revision surgery of a 32-year-old transgender woman who underwent vaginoplasty at an outside institution and presented to our clinic for clitoral reconstruction following necrosis and near-total loss of the neoclitoris. Physical exam showed extensive necrosis, and 3-Tesla magnetic resonance (MRI) revealed significant scarring of the pudendal nerve branches at the level of the pubic symphysis. Healthy nerve was identified at the level of the right inferior pubic ramus, and total clitoral reconstruction with an innervated first dorsal web space free flap anastamosed to the deep inferior epigastric vessels was performed. Complications included donor site cellulitis with partial loss of the skin graft and formation of hypertrophic scar tissue. This was treated 6 months postoperatively with excision of scar tissue in the webspace and placement of an additional full-thickness skin graft. At follow-up, the patient reported tactile and erogenous sensation of the neoclitoris itself and subjective satisfaction with the aesthetic outcome. Our results provide evidence that this flap is a feasible option to create an aesthetic and sensate neoclitoris in the setting of previous neoclitoral necrosis. This case report also describes the novel use of 3-Tesla MRI in target selection for nerve coaptation.


Asunto(s)
Nervio Pudendo , Transexualidad , Adulto , Clítoris/cirugía , Estética , Femenino , Humanos , Nervio Pudendo/cirugía , Colgajos Quirúrgicos
5.
BMC Cancer ; 17(1): 86, 2017 01 31.
Artículo en Inglés | MEDLINE | ID: mdl-28143445

RESUMEN

BACKGROUND: Concurrent cisplatin radiotherapy (CCRT) is a current standard-of-care for locally advanced head and neck squamous cell carcinoma (HNSCC). However, CCRT is frequently ineffective in patients with advanced disease. It has previously been shown that HSP90 inhibitors act as radiosensitizers, but these studies have not focused on CCRT in HNSCC. Here, we evaluated the HSP90 inhibitor, AUY922, combined with CCRT. METHODS: The ability of AUY922 to sensitize to CCRT was assessed in p53 mutant head and neck cell lines by clonogenic assay. Modulation of the CCRT induced DNA damage response (DDR) by AUY922 was characterized by confocal image analysis of RAD51, BRCA1, 53BP1, ATM and mutant p53 signaling. The role of FANCA depletion by AUY922 was examined using shRNA. Cell cycle checkpoint abrogation and chromosomal fragmentation was assessed by western blot, FACS and confocal. The role of ATM was also assessed by shRNA. AUY922 in combination with CCRT was assessed in vivo. RESULTS: The combination of AUY922 with cisplatin, radiation and CCRT was found to be synergistic in p53 mutant HNSCC. AUY922 leads to significant alterations to the DDR induced by CCRT. This comprises inhibition of homologous recombination through decreased RAD51 and pS1524 BRCA1 with a corresponding increase in 53BP1 foci, activation of ATM and signaling into mutant p53. A shift to more error prone repair combined with a loss of checkpoint function leads to fragmentation of chromosomal material. The degree of disruption to DDR signalling correlated to chromosomal fragmentation and loss of clonogenicity. ATM shRNA indicated a possible rationale for the combination of AUY922 and CCRT in cells lacking ATM function. CONCLUSIONS: This study supports future clinical studies combining AUY922 and CCRT in p53 mutant HNSCC. Modulation of the DDR and chromosomal fragmentation are likely to be analytical points of interest in such trials.


Asunto(s)
Cromosomas/efectos de los fármacos , Daño del ADN/efectos de los fármacos , Fragmentación del ADN/efectos de los fármacos , Proteínas HSP90 de Choque Térmico/antagonistas & inhibidores , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Isoxazoles/farmacología , Compuestos Organoplatinos/farmacología , Resorcinoles/farmacología , Animales , Proteína BRCA1/genética , Carcinoma de Células Escamosas/tratamiento farmacológico , Carcinoma de Células Escamosas/genética , Carcinoma de Células Escamosas/metabolismo , Carcinoma de Células Escamosas/radioterapia , Línea Celular Tumoral , Quimioradioterapia/métodos , Cromosomas/genética , Daño del ADN/genética , Daño del ADN/efectos de la radiación , Reparación del ADN/efectos de los fármacos , Reparación del ADN/genética , Reparación del ADN/efectos de la radiación , Femenino , Neoplasias de Cabeza y Cuello/genética , Neoplasias de Cabeza y Cuello/metabolismo , Neoplasias de Cabeza y Cuello/radioterapia , Recombinación Homóloga/efectos de los fármacos , Humanos , Ratones Endogámicos BALB C , Ratones Desnudos , Inhibidores de Proteínas Quinasas/farmacología , Carcinoma de Células Escamosas de Cabeza y Cuello , Proteína p53 Supresora de Tumor/genética
6.
Int J Cancer ; 139(6): 1414-22, 2016 09 15.
Artículo en Inglés | MEDLINE | ID: mdl-27116656

RESUMEN

The management of locally advanced or recurrent extremity sarcoma often necessitates multimodal therapy to preserve a limb, of which isolated limb perfusion (ILP) is a key component. However, with standard chemotherapeutic agents used in ILP, the duration of response is limited. Novel agents or treatment combinations are urgently needed to improve outcomes. Previous work in an animal model has demonstrated the efficacy of oncolytic virotherapy when delivered by ILP and, in this study, we report further improvements from combining ILP-delivered oncolytic virotherapy with radiation and surgical resection. In vitro, the combination of radiation with an oncolytic vaccinia virus (GLV-1h68) and melphalan demonstrated increased cytotoxicity in a panel of sarcoma cell lines. The effects were mediated through activation of the intrinsic apoptotic pathway. In vivo, combinations of radiation, oncolytic virotherapy and standard ILP resulted in delayed tumour growth and prolonged survival when compared with standard ILP alone. However, local disease control could only be secured when such treatment was combined with surgical resection, the timing of which was crucial in determining outcome. Combinations of oncolytic virotherapy with surgical resection and radiation have direct clinical relevance in extremity sarcoma and represent an exciting prospect for improving outcomes in this pathology.


Asunto(s)
Antineoplásicos/administración & dosificación , Quimioterapia del Cáncer por Perfusión Regional , Terapia Combinada , Viroterapia Oncolítica , Radioterapia , Sarcoma/patología , Animales , Apoptosis/efectos de los fármacos , Caspasa 3/metabolismo , Línea Celular Tumoral , Modelos Animales de Enfermedad , Extremidades , Vectores Genéticos/genética , Humanos , Masculino , Melfalán/administración & dosificación , Viroterapia Oncolítica/métodos , Virus Oncolíticos/genética , Terapia de Protones , Radioterapia/métodos , Ratas , Recurrencia , Sarcoma/genética , Sarcoma/mortalidad , Sarcoma/terapia , Transducción Genética , Carga Tumoral/efectos de los fármacos , Carga Tumoral/efectos de la radiación
7.
Mol Ther ; 23(5): 931-942, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25619724

RESUMEN

Reovirus type 3 (Dearing) (RT3D) infection is selective for cells harboring a mutated/activated RAS pathway. Therefore, in a panel of melanoma cell lines (including RAS mutant, BRAF mutant and RAS/BRAF wild-type), we assessed therapeutic combinations that enhance/suppress ERK1/2 signaling through use of BRAF/MEK inhibitors. In RAS mutant cells, the combination of RT3D with the BRAF inhibitor PLX4720 (paradoxically increasing ERK1/2 signaling in this context) did not enhance reoviral cytotoxicity. Instead, and somewhat surprisingly, RT3D and BRAF inhibition led to enhanced cell kill in BRAF mutated cell lines. Likewise, ERK1/2 inhibition, using the MEK inhibitor PD184352, in combination with RT3D resulted in enhanced cell kill in the entire panel. Interestingly, TCID50 assays showed that BRAF and MEK inhibitors did not affect viral replication. Instead, enhanced efficacy was mediated through ER stress-induced apoptosis, induced by the combination of ERK1/2 inhibition and reovirus infection. In vivo, combined treatments of RT3D and PLX4720 showed significantly increased activity in BRAF mutant tumors in both immune-deficient and immune-competent models. These data provide a strong rationale for clinical translation of strategies in which RT3D is combined with BRAF inhibitors (in BRAF mutant melanoma) and/or MEK inhibitors (in BRAF and RAS mutant melanoma).


Asunto(s)
Estrés del Retículo Endoplásmico , Melanoma/metabolismo , Proteínas Quinasas Activadas por Mitógenos/antagonistas & inhibidores , Viroterapia Oncolítica , Virus Oncolíticos , Inhibidores de Proteínas Quinasas/farmacología , Proteínas Proto-Oncogénicas B-raf/antagonistas & inhibidores , Reoviridae/fisiología , Animales , Antineoplásicos/administración & dosificación , Antineoplásicos/farmacología , Apoptosis/efectos de los fármacos , Apoptosis/genética , Benzamidas/administración & dosificación , Benzamidas/farmacología , Caspasas/metabolismo , Línea Celular Tumoral , Supervivencia Celular/efectos de los fármacos , Supervivencia Celular/genética , Modelos Animales de Enfermedad , Resistencia a Antineoplásicos , Activación Enzimática , Fibroblastos/efectos de los fármacos , Fibroblastos/metabolismo , Humanos , Indoles/administración & dosificación , Indoles/farmacología , Melanoma/genética , Melanoma/patología , Melanoma/terapia , Proteínas Quinasas Activadas por Mitógenos/genética , Proteínas Quinasas Activadas por Mitógenos/metabolismo , Mutación , Proteína Oncogénica p21(ras)/genética , Inhibidores de Proteínas Quinasas/administración & dosificación , Proteínas Proto-Oncogénicas B-raf/genética , Proteínas Proto-Oncogénicas B-raf/metabolismo , Transducción de Señal/efectos de los fármacos , Sulfonamidas/administración & dosificación , Sulfonamidas/farmacología , Factor de Necrosis Tumoral alfa/metabolismo , Ensayos Antitumor por Modelo de Xenoinjerto
8.
Int J Cancer ; 136(4): 965-76, 2015 Feb 15.
Artículo en Inglés | MEDLINE | ID: mdl-24978211

RESUMEN

Isolated limb perfusion (ILP) is a treatment for advanced extremity sarcoma and in-transit melanoma. Advancing this procedure by investigating the addition of novel agents, such as cancer-selective oncolytic viruses, may improve both the therapeutic efficacy of ILP and the tumour-targeted delivery of oncolytic virotherapy. Standard in vitro assays were used to characterise single agent and combinatorial activities of melphalan, tumour necrosis factor-alpha (TNF-α) and Lister strain vaccinia virus (GLV-1h68) against BN175 rat sarcoma cells. An orthotopic model of advanced extremity sarcoma was used to evaluate survival of animals after ILP with combinations of TNF-α, melphalan and GLV-1h68. We investigated the efficiency of viral tumour delivery by ILP compared to intravenous therapy, the locoregional and systemic biodistribution of virus after ILP, and the effect of mode of administration on antibody response. The combination of melphalan and GLV-1h68 was synergistic in vitro. The addition of virus to standard ILP regimens was well tolerated and demonstrated superior tumour targeting compared to intravenous administration. Triple therapy (melphalan/TNF-α/GLV-1h68) resulted in increased tumour growth delay and enhanced survival compared to other treatment regimens. Live virus was recovered in large amounts from perfused regions, but in smaller amounts from systemic organs. The addition of oncolytic vaccinia virus to existing TNF-α/melphalan-based ILP strategies results in survival advantage in an immunocompetent rat model of advanced extremity sarcoma. Virus administered by ILP has superior tumour targeting compared to intravenous delivery. Further evaluation and clinical translation of this approach is warranted.


Asunto(s)
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Miembro Posterior/patología , Virus Oncolíticos/fisiología , Sarcoma Experimental/terapia , Virus Vaccinia/fisiología , Animales , Apoptosis , Línea Celular Tumoral , Quimioterapia del Cáncer por Perfusión Regional , Terapia Combinada , Miembro Posterior/efectos de los fármacos , Humanos , Masculino , Melfalán/administración & dosificación , Trasplante de Neoplasias , Ratas Endogámicas , Sarcoma Experimental/irrigación sanguínea , Sarcoma Experimental/patología , Factor de Necrosis Tumoral alfa/administración & dosificación
9.
Cureus ; 16(5): e59461, 2024 May.
Artículo en Inglés | MEDLINE | ID: mdl-38826896

RESUMEN

Background Advances in cancer treatment have markedly improved survival rates but have also heightened morbidity due to treatment-related side effects. Despite this, the literature remains scarce on predicting the incidence of acute cardiac toxicity resulting from chemotherapy. We conducted a prospective evaluation to assess the incidence, timing, clinical correlates, global longitudinal strain (GLS), and response to heart failure (HF) therapy in patients experiencing cardiotoxicity. Aims and objectives Our study aimed to assess the cardiovascular complications of cancer therapy in breast cancer patients, with particular emphasis on therapy-related cardiac dysfunction. Materials and methods We conducted a prospective observational study to detect chemotherapy-related cardiac dysfunction (CTRCD) in breast cancer patients attending the outpatient department (OPD) or admitted to Dayanand Medical College and Hospital (DMCH), Ludhiana, Punjab, between March 1, 2020, and October 31, 2021. We assessed left ventricular ejection fraction (LVEF) at baseline, mid-chemotherapy, and post-chemotherapy. Patients who developed left ventricular dysfunction (LVD) had their chemotherapy regimen modified and were initiated on HF therapy. Results Ninety-seven patients (mean age: 50.74±10.30 years) were enrolled and categorized into the LVD group (n=13) and non-LVD group (n=84). CTRCD developed in 13 patients (13.4%). Patients with estrogen receptor (ER) positive, progesterone receptor (PR) positive, and human epidermal growth factor receptor 2 (HER2) positive status, as well as those in cancer stages III and IV, are at higher risk of developing LV dysfunction. Among the 13 patients, 10 (77%) experienced complete recovery, while three (23%) had partial recovery. Markers for partial recovery included cancer stages III-IV, younger age, lower body mass index (BMI), lower radiotherapy dosage, lower mean chemotherapy dosage, and left breast involvement. Conclusion Our findings suggest that acute cardiotoxicity is not linked to the cumulative dose of anthracyclines. Early detection, modification of chemotherapy regimens, and prompt initiation of CTRCD therapy can lead to substantial recovery of cardiac dysfunction.

10.
Cureus ; 16(1): e51817, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38327906

RESUMEN

Leukocytoclastic vasculitis (LCV) is a small-vessel vasculitis characterized by inflammation and damage to the walls of small blood vessels. It typically presents with palpable purpura and can be associated with various systemic conditions. Although its etiology is diverse, LCV has been associated with systemic diseases, infections, medications, and autoimmune disorders. Here, we present a case of LCV in a patient with decompensated heart failure. A 58-year-old man presented with progressively deteriorating swelling in both his lower limbs and scrotum, a persistent dry cough associated with minor ulcerative lesions on his shins, and a patchy rash with pustules and flat reddish spots. He was hospitalized three days prior due to atrial fibrillation and rapid ventricular rate, for which he was commenced on amiodarone. This rash persisted for three days, yet he denied experiencing any discomfort or itchiness along with it. Based on his clinical picture, laboratory evaluations, and imaging findings, he was diagnosed with LCV induced by amiodarone.

11.
Cureus ; 16(1): e51841, 2024 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-38327963

RESUMEN

INTRODUCTION: Type 2 diabetes mellitus (T2DM) is associated with various microvascular and macrovascular complications. Stroke, being a vascular complication, is associated with severe morbidity and mortality. Neutrophil lymphocyte ratio (NLR), a crude, inexpensive, and rather easily available modality to detect inflammation, has been utilized to find the extent of inflammation in type 2 diabetes mellitus patients. In this study, we find the effect of hemoglobin A1c (HbA1c) on NLR and the effect of NLR on stroke severity index. AIMS AND OBJECTIVES: This study aims to determine the use of the NLR in predicting stroke severity in a type 2 diabetes mellitus patient. MATERIALS AND METHODS: This study is an observational cross-sectional study. A total of 400 patients were enrolled, all of whom had type 2 diabetes mellitus, with 200 of them diagnosed with an ischemic stroke. The National Institute of Health stroke scale (NIHSS) was used to standardize stroke severity and NLR was calculated from differential counts. RESULTS: The mean NLR for patients with type 2 diabetes mellitus was 3.87 ± 0.76 (mean ± SD), while for those with type 2 diabetes mellitus and stroke, it was 7.89 ± 1.29 (mean ± SD), with a statistically significant p-value < 0.001. Additionally, for every 1 unit increase in HbA1c, the NLR increased by 0.38 in type 2 diabetes mellitus patients and 0.86 in type 2 diabetes mellitus patients with stroke. Furthermore, each 1-unit increase in NLR corresponded to a rise of 0.80 in the stroke severity index. CONCLUSION: The study shows a significant correlation between NLR in type 2 diabetes mellitus patients and stroke in type 2 diabetes mellitus patients. Also, it shows the significance of NLR in predicting stroke severity.

12.
Clin Case Rep ; 12(2): e8520, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38344357

RESUMEN

Key Clinical Message: Accurate diagnosis of rare neurological conditions like Balo's concentric sclerosis (BCS) is challenging but crucial for tailored treatment. Interdisciplinary collaboration and further research are essential to advance our understanding. Abstract: This case report presents a 32-year-old female patient with a puzzling neurological condition characterized by feverish feelings, joint pain, unclear speech, and an unsteady gait. Initial management did not lead to improvement, and further examination revealed neurological involvement and joint tenderness without signs of inflammatory arthritis. Laboratory investigations ruled out infectious and autoimmune causes. Magnetic resonance imaging (MRI) showed well-defined lesions with concentric rings, leading to a diagnosis of Balo' concentric sclerosis. Treatment with intravenous methylprednisolone resulted in limited improvement. This case highlights the importance of thorough evaluation and collaboration in diagnosing rare neurological conditions. Further research is needed to enhance the understanding and treatment of rare neurological disorders.

13.
Cureus ; 16(4): e57619, 2024 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-38711711

RESUMEN

The number one cause of cancer in women worldwide is breast cancer. Over the last three decades, the use of traditional screen-film mammography has increased, but in recent years, digital mammography and 3D tomosynthesis have become standard procedures for breast cancer screening. With the advancement of technology, the interpretation of images using automated algorithms has become a subject of interest. Initially, computer-aided detection (CAD) was introduced; however, it did not show any long-term benefit in clinical practice. With recent advances in artificial intelligence (AI) methods, these technologies are showing promising potential for more accurate and efficient automated breast cancer detection and treatment. While AI promises widespread integration in breast cancer detection and treatment, challenges such as data quality, regulatory, ethical implications, and algorithm validation are crucial. Addressing these is essential for fully realizing AI's potential in enhancing early diagnosis and improving patient outcomes in breast cancer management. In this review article, we aim to provide an overview of the latest developments and applications of AI in breast cancer screening and treatment. While the existing literature primarily consists of retrospective studies, ongoing and future prospective research is poised to offer deeper insights. Artificial intelligence is on the verge of widespread integration into breast cancer detection and treatment, holding the potential to enhance early diagnosis and improve patient outcomes.

14.
Cureus ; 16(3): e55426, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38571842

RESUMEN

Acute pancreatitis, marked by sudden inflammation of the pancreas, presents a complex spectrum of causative factors including gallstone obstruction, alcohol abuse, and viral infections. Recent studies have illuminated the emergence of vaccine-induced acute pancreatitis, notably associated with COVID-19 vaccinations, presenting diverse mechanisms ranging from direct viral-mediated injury to autoimmune reactions. Understanding this link is pivotal for public health, yet challenges persist in identifying and managing cases post-vaccination. Comprehensive literature reviews employing the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) statement outline the potential pathways and mechanisms leading to vaccine-induced pancreatitis, emphasizing the need for deeper investigations into underlying health conditions and modifications to vaccine components. Notably, the rare occurrences of vaccine-induced pancreatitis extend beyond COVID-19 vaccines, with reports also documenting associations with measles, mumps, and rubella (MMR), human papillomavirus (HPV), and other viral vaccinations. Mechanistically, hypotheses such as molecular mimicry and immunologic injury have been proposed, necessitating ongoing vigilance and exploration. Regulatory agencies play a crucial role in monitoring and communicating vaccine safety concerns, emphasizing transparency to address potential risks and maintain public trust. Understanding and communicating these rare adverse events with transparency remain integral for informed vaccination policies and to allay concerns surrounding vaccine safety.

15.
Clin Case Rep ; 12(3): e8588, 2024 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-38523824

RESUMEN

Diverticular bleeding is the most common cause of lower gastrointestinal bleeding and accounts for 20.8%-41.6% of cases in the Western world. Management involves initial resuscitation followed by diagnostic assessment. Colonoscopy is the investigation of choice as it localizes the bleed and has the potential to effectively deliver therapeutic interventions. Other diagnostic modalities include flexible sigmoidoscopy, a tagged red blood cell scan, or angiography. In cases where the bleeding source cannot be identified, intraoperative enteroscopy has emerged as a valuable tool for investigating obscure gastroenterology bleeds in specific patients. In this case report, we describe the management of a 77-year-old male with recently diagnosed pan-colonic diverticulosis who presented with multiple episodes of rectal bleeding and syncope. Due to his declining hemodynamic status and failed endoscopy and embolization, he was taken to surgery for a colectomy. Intraoperative colonoscopy was utilized to facilitate accurate identification of the pathology, assessment of anastomotic patency, and detection of surgical complications. This case report attempts to portray how the incorporation of endo-videoscopy into surgical planning has the potential to enhance patient outcomes and represent a significant advancement in the field of minimally invasive surgery.

16.
Lancet Oncol ; 13(9): e392-402, 2012 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-22935239

RESUMEN

Surgery is the most effective curative treatment for various tumour types. Despite a current preference for conservative surgery, radical excision retains a clearly defined role in modern management of locoregional disease. Extirpative defects are reconstructed routinely using free-tissue transfer from a distant donor site. Although these free flaps currently provide no direct therapeutic benefit, advances in gene-delivery techniques offer the possibility to genetically modify flaps to produce potent targeted treatments with greater anatomical control. Several promising therapeutic strategies, including virus-directed enzyme prodrug therapy, genetic radionuclide therapy, and free-flap radioprotection, have the potential to extend the role of the free flap beyond its immediate goal of restoring form and function to patients, but challenges exist. Work to translate therapeutic free-tissue transfer from preclinical study to clinical use is in progress.


Asunto(s)
Técnicas de Transferencia de Gen , Neoplasias/terapia , Procedimientos de Cirugía Plástica/métodos , Colgajos Quirúrgicos , Colgajos Quirúrgicos/irrigación sanguínea
17.
Cureus ; 15(10): e46548, 2023 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-37933339

RESUMEN

This conversation with ChatGPT explores the use of lithium in pregnancy for bipolar disorder, a topic of significant importance in psychiatry. Bipolar disorder is characterized by extreme mood swings, and its prevalence varies globally. ChatGPT provides valuable information on bipolar disorder, its prevalence, age of onset, and gender differences. It also discusses the use of lithium during pregnancy, emphasizing the need for individualized decisions, close monitoring, and potential risks and benefits. However, it is essential to note that ChatGPT's responses lack specific references, raising concerns about the reliability of the information provided. Further research is needed to quantify the correctness and dependability of ChatGPT-generated answers in the healthcare context.

18.
Plast Reconstr Surg ; 152(4): 708-714, 2023 10 01.
Artículo en Inglés | MEDLINE | ID: mdl-36862959

RESUMEN

BACKGROUND: Studies support an inherent morbidity associated with the use of surgical drains-such as postoperative pain, infection, reduction in mobility, and delay in patient discharge-and they do not prevent seroma or hematoma. The authors' series aims to evaluate the feasibility, benefits, and safety of performing drainless deep inferior epigastric perforator (DIEP) flap surgery and to formulate an algorithm for when this can be used. METHODS: A retrospective review of DIEP reconstruction outcomes of two surgeons was performed. Over the course of 24 months, consecutive DIEP flap patients were included from the Royal Marsden Hospital in London and Austin Hospital in Melbourne, and drain use, drain output, length of stay (LOS), and complications were analyzed. RESULTS: A total of 107 DIEP flap reconstructions were performed by two surgeons. Thirty-five patients had abdominal drainless DIEP flaps, and 12 patients had totally drainless DIEP flaps. Mean age was 52 years (range, 34 to 73 years) and mean body mass index was 26.8 kg/m 2 (range, 19.0 to 41.3 kg/m 2 ). Abdominal drainless patients showed a potential trend toward shorter hospital stays as compared with the ones with drains (mean LOS, 3.74 days versus 4.05 days; P = 0.154). Totally drainless patients had an even shorter, statistically significant, mean LOS of 3.10 days, as compared with patients with drains (4.05 days, P = 0.002), with no increase in complications. CONCLUSIONS: The avoidance of abdominal drains in DIEP flaps reduces hospital stay without increasing complications, and this has become our standard practice for patients with a body mass index of less than 30 kg/m 2 . It is our opinion that the totally drainless DIEP flap procedure is safe in selected patients. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.


Asunto(s)
Mamoplastia , Colgajo Perforante , Humanos , Persona de Mediana Edad , Drenaje/métodos , Abdomen , Estudios Retrospectivos , Dolor Postoperatorio , Mamoplastia/métodos , Complicaciones Posoperatorias/epidemiología , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/prevención & control
19.
Cureus ; 15(7): e42689, 2023 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-37649935

RESUMEN

A post-thyroidectomy hematoma is a rare, potentially fatal surgical complication that may present as hoarseness, dysphagia, and difficulty in breathing, which could progress to complete airway obstruction and, ultimately, death. The treatment for a neck hematoma is emergent surgical drainage. While certain precautions can be taken to prevent this complication, such as the cessation of any anticoagulants prior to surgery, it is still a feared complication of thyroidectomy with an increasing prevalence. In this paper, we discuss a case of a 62-year-old female with papillary thyroid cancer who presents with a postoperative complication of a neck hematoma requiring emergent surgery and conduct a literature review on managing post-thyroidectomy hematomas.

20.
Cureus ; 15(5): e39336, 2023 May.
Artículo en Inglés | MEDLINE | ID: mdl-37378132

RESUMEN

Kawasaki illness is an inflammatory condition of small- to medium-sized vessels that primarily affects children. It affects the lymph nodes, skin, mucous membranes, and heart, especially the coronary arteries. Patients who lack the comprehensive clinical manifestations of classic Kawasaki disease (KD) are typically evaluated for incomplete KD. Such patients have persistent fever and lack one or more characteristic clinical signs. Here, we present a case of a 16-month-old baby presented with fever for nine days, excessive crying and irritability for four days, and refusal to feed for one day with pallor and developed lip cracking, mucositis, bilateral edema, and redness in the palms and soles followed by periungual desquamation. Lab evaluations revealed anemia, elevated white cell count, and c-reactive protein along sterile pyuria. Since the child became afebrile after ten days of illness, inflammatory marker levels decreased, and no coronary artery abnormalities were detected on 2D echocardiography, and the child was diagnosed with incomplete KD based on the clinical, laboratory, and radiological evaluations after ruling out all other possible causes. He was managed conservatively with low-dose aspirin, and the child was doing well on a two-month follow-up.

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