Publications by authors named "Ioan Lascar"

Radiation injuries, particularly those resulting from therapeutic or accidental exposure, present complex challenges for medical management. These injuries can manifest localized skin damage or extend to deeper tissues, presenting as various clinical entities that require treatment strategies, ranging from conservative management to complex surgical interventions. Radiation treatment constitutes a fundamental component of neoplastic management, with nearly two out of three oncological instances undergoing it as an element of their therapeutic strategy.

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Melanoma is one of the most aggressive forms of skin cancer. While most melanomas have a discernible primary site, a small subset, approximately 3.2%, present as a metastatic disease without an identifiable primary origin, a condition known as melanoma of unknown primary (MUP).

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  • The Buschke-Löwenstein tumor (BLT) is a rare, exophytic tumor linked to low-risk HPV strains, primarily appearing as a large, cauliflower-like growth in genital areas, which can be locally aggressive and has a notable recurrence rate.
  • A 68-year-old patient with multiple health issues presented with a sizable tumor causing erectile dysfunction and urinary problems, which was successfully surgically excised with reconstruction.
  • Histopathological analysis confirmed the diagnosis, and the patient's recovery underscores the importance of early diagnosis and surgical intervention to manage BLT and prevent complications like malignancy and recurrence.
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: Hand septic arthritis is a potentially debilitating condition that can significantly affect patient functionality and quality of life. Understanding the demographic, clinical, and microbiological characteristics of this condition is crucial for its effective treatment and management. This study aimed to analyze the demographic and clinical profiles of patients with hand septic arthritis, to identify common microbial pathogens, and to evaluate the impact of various factors on clinical course and treatment outcomes.

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  • The field of plastic surgery is rapidly changing due to new technologies and treatment methods, which require updated protocols and problem-solving strategies.
  • Surgical decisions in reconstructive surgery are influenced by factors like the cause of the defect, the patient's needs and background, and the surgeon’s skill level.
  • Reconstructive surgery frameworks aim to minimize risks and improve outcomes, offering structured approaches for researchers to tackle unique clinical challenges using a combination of theory and practical techniques.
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  • The field of transplantation has advanced significantly since the first hand transplant in 1998, particularly in vascularized composite allotransplantation (VCA), which faces challenges like the need for lifelong immunosuppressive therapy.
  • Current research aims to improve immunosuppressive strategies to reduce toxicity and foster donor-specific tolerance, emphasizing the role of costimulatory signals in T cell activation.
  • This review summarizes data on costimulatory blockade as a potential method to prevent organ rejection and enhance the success of VCA, exploring new techniques for safer transplantation procedures.
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  • Burn injuries lead to serious trauma with high morbidity and mortality, making prompt management essential for improving patient outcomes, particularly focusing on biological parameters like thrombocytopenia.
  • A two-year study of 90 severely burned patients revealed that thrombocytopenia was linked to a worse prognosis, as those with low platelet counts had higher mortality rates, especially in conjunction with other severe burn characteristics.
  • The findings suggest thrombocytopenia can serve as an early warning sign for complications and may help predict outcomes in patients with severe burns, especially in those experiencing sepsis.
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Burn patients manifest all components of Virchow's triad, amplifying the concern for venous thromboembolism (VTE). Routine prophylaxis for VTE remains a subject of debate, with the central concern being the occurrence of associated adverse events. We conducted a five-year retrospective study on burn patients admitted to our burn center.

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There is great interest in the development of prosthetic limbs capable of complex activities that are wirelessly connected to the patient's neural system. Although some progress has been achieved in this area, one of the main problems encountered is the selective acquisition of nerve impulses and the closing of the automation loop through the selective stimulation of the sensitive branches of the patient. Large-scale research and development have achieved so-called "cuff electrodes"; however, they present a big disadvantage: they are not selective.

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Benign and malignant cartilaginous bone tumors of the hand are rare findings, however representing a particular pathology due to the capacity to induce significant functional impairment. Even though a large proportion of tumors of the hand and wrist are benign, these may present destructive characteristics, deforming adjacent structures until compromising function. The most appropriate surgical approach for most benign tumors is intralesional lesion resection.

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Intranodal schwannoma is a rare benign tumor, which originates from the peripheral nerve sheath (Schwann cells), fewer cases being reported with lymphatic involvement. We present the case of a middle-aged female patient, with one-year growing mass in the lateral-cervical area, in intimate relation with the vascular package of the neck. Preoperative cervical computed tomography examination showed the tumor features.

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Severe burn injuries lead to acute kidney injury (AKI) development, increasing the mortality risk up to 28-100%. In addition, there is an increase in hospitalization days and complications appearance. Various factors are responsible for acute or late AKI debut, like hypovolemia, important inflammatory response, excessive load of denatured proteins, sepsis, and severe organic dysfunction.

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In this article, we present our research achievements regarding the development of a remote sensing system for motor pulse acquisition, as a first step towards a complete neuroprosthetic arm. We present the fabrication process of an implantable electrode for nerve impulse acquisition, together with an innovative wirelessly controlled system. In our study, these were combined into an implantable device for attachment to peripheral nerves.

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Benign peripheral nerve tumors and malignant peripheral nerve tumors are rarely found in patients with upper limb tumors. A four-year retrospective study was conducted on patients with tumors in the upper limb area admitted to the Emergency Clinical Hospital, Bucharest, Romania. Seventeen patients were admitted within this time range, 15 of which were benign and two malignant.

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Breast cancer is considered to be the second major cause of cancer death in women after lung cancer. Due to a remarkable progress, the treatments against breast cancer became more efficient and less toxic. In addition, the reconstructive procedures after mastectomy have improved significantly the quality of life especially in younger women.

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Background And Objectives: Nowadays, breast cancer treatment spans from simple lesion excision to complex management including surgery (mastectomy with or without axillary lym-phadenectomy) and adjuvant treatment (chemotherapy, radiotherapy, hormonal therapy and im-munotherapy). Lately, breast reconstruction has become part of the breast cancer approach, but, while its physical and emotional benefits are undisputed, it comes with its own set of risks and complications, especially when delayed breast reconstruction after radiotherapy is performed. This paper aims to present our experience on the effects of radiotherapy in conjunction with de-layed alloplastic breast reconstruction.

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Organophosphate (OP) use remains largely available worldwide despite more strict regulatory measures, in agriculture, parks or households, leading to a daily low-dose exposure. The systemic dysfunction appears partly due to acetylcholinesterase inhibition, exhibiting a primary toxic effect on the endocrine system but also on the liver and kidneys, which are responsible for products metabolization and elimination. Prolonged OP exposure can be responsible for histopathological (HP) changes that can either evolve or worsen pre-existing conditions.

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Head and neck defects after tumor resection can be difficult to reconstruct using autogenous tissue without utilizing a free flap. Osteocutaneous fibula free flap is now considered the gold standard used for mandibular reconstruction after resections due to malignancy. We present the case of a 49-year old female known with an ectopic mucoepidermoid carcinoma involving the mandibula from one ramus to another.

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Iron deficiency is a major problem in worldwide populations, being more alarming in surgical patients. In the presence of absolute iron deficiency (depletion of body iron), functional iron deficiency (during intense bone marrow stimulation by endogenous or exogenous factors), or iron sequestration (acute or chronic inflammatory conditions), iron-restricted erythropoiesis can develop. This systemic review was conducted to draw attention to the delicate problem of perioperative anemia, and to provide solutions to optimize the management of anemic surgical patients.

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The development of stem cell technology in combination with advances in biomaterials has opened new ways of producing engineered tissue substitutes. In this study, we investigated whether the therapeutic potential of an acellular porous scaffold made of type I collagen can be improved by the addition of a powerful trophic agent in the form of mesenchymal stromal cells conditioned medium (MSC-CM) in order to be used as an acellular scaffold for skin wound healing treatment. Our experiments showed that MSC-CM sustained the adherence of keratinocytes and fibroblasts as well as the proliferation of keratinocytes.

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Breast cancer is the most common cancer in women. The immunohistochemical profile, but also the stage of the tumor determines the therapeutic management, which varies from conservative surgery to mastectomy associated with chemotherapy, hormonal and biological therapy and/or radiotherapy. Mastectomy remains one of the most radical surgical intervention for women, having great consequences on quality of life, which can be improved by realizing immediate or delayed breast reconstruction.

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Pathological wound healing states, such as hypertrophic scarring and keloids, represent a huge clinical and financial burden on healthcare system. The complex biological mechanisms occurring in hypertrophic scarring are still barely understood. To date, there is no satisfactory description of hypertrophic fibroblasts.

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  • The study examined periorbital burn injuries in 126 severely burned patients, focusing on factors like demographics, burn severity, and ocular injuries.
  • Major risk factors included advanced age, extensive and deep burns, and inhalation injuries, which were linked to high morbidity and mortality rates.
  • Effective treatment for ocular injuries is crucial to prevent vision loss, highlighting the importance of preventive measures and timely ophthalmologic care in severely burned patients.
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The aim of the study was to observe similarities and differences regarding surgical safety and prognosis between en bloc bipolar resection and monopolar transurethral resection of bladder tumors (TURBTs) in medium size papillary non-muscle invasive bladder tumors (NMIBTs). A total of 90 patients with papillary bladder tumors presenting a diameter between 1 and 3 cm were equally divided and alternatively assigned for en bloc bipolar ablation (the study group) and conventional TURBT (the control group). During one year, every three months, the follow-up was performed and the protocol included urinary cytology and cystoscopy.

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