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Medullary nephrocalcinois and primary hyperaldosteronism - A rare and under recognised association. 髓样肾钙化症和原发性高醛固酮血症--一种罕见且未得到充分认识的关联。
Pub Date : 2024-07-01 Epub Date: 2024-08-12 DOI: 10.4103/jpgm.jpgm_296_24
R John, J T Johnson, R R Rajan, F Jebasingh

Abstract: Medullary nephrocalcinosis is an uncommon manifestation of primary hyperaldosteronism (PHA) and the exact etiology of this association is still debated. Here we report three cases of PHA with medullary nephrocalcinosis and how medullary nephrocalcinosis in one patient led to misdiagnosis as renal tubular acidosis (RTA). Although PHA and RTA can share overlapping symptoms, careful evaluation of clinical presentation, biochemical tests, and imaging studies are essential to differentiate between the two conditions and ensure appropriate management. Also, awareness of this uncommon manifestation of PHA is essential to avoid misdiagnosis as tubulopathy, as this may delay the treatment.

摘要:髓样肾钙化症是原发性高醛固酮血症(PHA)的一种不常见表现,这种关联的确切病因仍存在争议。在此,我们报告了三例伴有髓质肾红细胞增多症的 PHA 病例,以及一名患者的髓质肾红细胞增多症是如何被误诊为肾小管性酸中毒(RTA)的。虽然 PHA 和 RTA 的症状可能重叠,但仔细评估临床表现、生化检验和影像学检查对于区分这两种疾病并确保适当的治疗至关重要。此外,了解 PHA 的这种不常见表现对于避免误诊为肾小管病变也至关重要,因为这可能会延误治疗。
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引用次数: 0
A misplaced epicutaneo-caval catheter presents with abdominal wall cellulitis in a neonate. 一名新生儿因腹壁蜂窝织炎出现腹腔外导管错位。
Pub Date : 2024-07-01 Epub Date: 2024-08-14 DOI: 10.4103/jpgm.jpgm_152_24
A G Gore, P R Raghavendra, S Nair, A Haribalakrishna
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引用次数: 0
Factors influencing academic failure rate among first-year Indian medical students who experienced competency-based medical education curriculum during the COVID-19 pandemic. 在 COVID-19 大流行期间经历过能力本位医学教育课程的印度医科一年级学生学业失败率的影响因素。
Pub Date : 2024-07-01 Epub Date: 2024-07-26 DOI: 10.4103/jpgm.jpgm_925_23
D Lalwani, S Kalawadia, N Darooka, S Rao, M Hirkani

Objectives: The primary objective of the study was to assess the factors that influenced the increased failure rate among first-year Indian medical students who appeared for the Maharashtra University of Health Science (MUHS) summative university examination, having experienced the competency-based medical education (CBME) curriculum for the first time amid the coronavirus disease (COVID-19) pandemic.

Methods: A retrospective cross-sectional online questionnaire-based study was undertaken between July 2021 and November 2021, in which first-year Indian medical students who were enrolled in the Bachelor of Medicine, Bachelor of Surgery (MBBS) program in the year 2019 and appeared for the MUHS summative university examination in February 2021 were invited to participate. Analysis was done using JASP (v0.16.0.0), and the odds ratio for failure was calculated at a significance level of P < 0.05.

Results: Responses were obtained from 360 individuals, of whom 74.5% had passed and 25.5% had failed (n = 360). The odds of failure in first-year MBBS summative university examination was higher in students with irregular Internet access, irregular device access, an unsupportive peer environment in college, a National Entrance cum Eligibility Test score below 500, an unsupportive family environment during the lockdown, severe stress, severe depression, testing positive for COVID-19 before the exam, death in the family during the exam, and failing in terms and prelims and students of male gender ( P < 0.01).

Conclusion: The total failure rate of 27% in the MUHS examination was mainly attributed to interplay between the student's mental health, lack of devices or Internet, and the changed assessment part of the CBME curriculum. Surprisingly, lecture frequencies, teaching patterns, and study resources did not influence the failure rate. These results can be used to formulate interventions that will help to improve academic performance and mental health students and thus help them adapt to the new curriculum.

研究目的本研究的主要目的是评估在冠状病毒病(COVID-19)大流行的情况下,首次体验基于能力的医学教育(CBME)课程的印度医科一年级学生参加马哈拉施特拉邦健康科学大学(MUHS)终结性大学考试的不及格率增加的影响因素:方法:在 2021 年 7 月至 2021 年 11 月期间开展了一项基于在线问卷的回顾性横断面研究,邀请 2019 年就读于医学学士、外科学士(MBBS)课程并参加 2021 年 2 月 MUHS 大学终结性考试的印度医科一年级学生参加。使用 JASP(v0.16.0.0)进行分析,并以 P < 0.05 的显著性水平计算失败几率:共收到 360 人的回复,其中 74.5%通过,25.5%未通过(n = 360)。在大学一年级医学学士学位终结性考试中,上网不正常、使用设备不正常、大学同学环境不支持、全国入学资格考试成绩低于 500 分、禁闭期间家庭环境不支持、严重压力、严重抑郁、考前 COVID-19 检测呈阳性、考试期间家人死亡、学期和考前考试不及格以及男性学生的不及格几率更高(P < 0.01):医学人文科学硕士考试的总不及格率为 27%,这主要归因于学生的心理健康、缺乏设备或网络,以及 CBME 课程评估部分的改变。令人惊讶的是,授课频率、教学模式和学习资源并没有影响不及格率。这些结果可用于制定干预措施,帮助提高学生的学习成绩和心理健康水平,从而帮助他们适应新课程。
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引用次数: 0
Improving safety: Neuraxial blockade guided by thromboelastography for patients with uncertain coagulation profile. 提高安全性:为凝血功能不确定的患者提供血栓弹力图引导下的神经阻滞。
Pub Date : 2024-07-01 Epub Date: 2024-08-14 DOI: 10.4103/jpgm.jpgm_361_24
A Kumar, A N Deshmukh, C K Pandey, N Chaudhary

Abstract: Neuraxial blockade procedures are essential for anesthesia and pain management but pose risks in patients with uncertain coagulation profiles. Traditional coagulation tests often fail to predict bleeding risks associated with neuraxial blockade. Thromboelastography (TEG) offers real-time insights into coagulation status, potentially improving safety outcomes. In this case series, six patients underwent neuraxial blockade guided by TEG analysis. An individualized anesthetic plan was formulated based on TEG findings to mitigate bleeding risks while ensuring pain management. Tailoring anesthetic techniques to real-time TEG data improved safety outcomes with minimized bleeding complications and satisfactory pain control. In conclusion, neuraxial blockade guided by TEG enhances safety in patients with uncertain coagulation profiles. Further studies are needed to validate benefits in broader clinical settings.

摘要:神经阻滞手术对麻醉和疼痛治疗至关重要,但对凝血功能不确定的患者而言却存在风险。传统的凝血测试往往无法预测神经阻滞相关的出血风险。血栓弹性成像(TEG)可实时了解凝血状态,从而改善安全结果。在本病例系列中,六名患者在 TEG 分析的指导下接受了神经阻滞。根据 TEG 分析结果制定了个性化的麻醉计划,以降低出血风险,同时确保疼痛控制。根据实时 TEG 数据调整麻醉技术提高了安全性,最大限度地减少了出血并发症,疼痛控制令人满意。总之,在 TEG 指导下进行神经阻滞可提高凝血功能不确定患者的安全性。还需要进一步的研究来验证在更广泛的临床环境中的益处。
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引用次数: 0
Primary central nervous system neuroblastoma mimicking a meningioma: A case report. 模仿脑膜瘤的原发性中枢神经系统神经母细胞瘤:病例报告
Pub Date : 2024-07-01 Epub Date: 2024-07-12 DOI: 10.4103/jpgm.jpgm_58_24
K Yadav, P K Sharma, D K Singh, V K Mishra

Abstract: Neuroblastomas are the most common extracranial solid tumor in the pediatric age group (~8%-10% of childhood neoplasms). Most cases of intracranial neuroblastomas occur due to metastasis from some primary extracranial sites and are known as secondary neuroblastomas. However, the occurrence of primary central nervous system neuroblastomas (PCN-NB) is very rare, and only a few cases and case series have been reported in the literature. PCN-NB is mainly an intra-axial pathology, and extra-axial involvement is mainly due to metastasis from some extracranial primary site with involvement of the skull bone. Herein we report a case of a 23-year-old female having a large extra-axial space-occupying lesion in the right frontal region that was mimicking a meningioma, and surprisingly the histopathology was suggestive of a supratentorial neuroblastoma. A right frontal craniotomy was made, and Simpson's grade 1 excision of the tumor was done. The excised tissue was sent for histopathological examination. PCN-NB located extra-axially are extremely rare to occur. Due to inconsistent radiological imaging, it becomes very difficult to diagnose these tumors preoperatively, and these should be kept in mind as one of the differential diagnoses of extra-axial intracranial space-occupying lesions. Histopathological examination is crucial in diagnosing the intracranial neuroblastomas.

摘要:神经母细胞瘤是儿科最常见的颅外实体瘤(约占儿童肿瘤的8%-10%)。颅内神经母细胞瘤多数是由颅外原发部位转移而来,被称为继发性神经母细胞瘤。然而,原发性中枢神经系统神经母细胞瘤(PCN-NB)非常罕见,文献中仅有少数病例和系列病例报道。PCN-NB 主要是轴内病变,轴外受累主要是由于颅外原发部位转移累及颅骨所致。在此,我们报告了一例 23 岁女性患者的病例,她的右额叶区域有一个巨大的轴外占位性病变,该病变模仿脑膜瘤,令人惊讶的是,组织病理学结果提示为幕上神经母细胞瘤。患者接受了右额叶开颅手术,并进行了辛普森 1 级肿瘤切除术。切除的组织被送去进行组织病理学检查。位于轴外的 PCN-NB 极其罕见。由于放射成像不一致,术前诊断这些肿瘤变得非常困难,应将其作为轴外颅内占位性病变的鉴别诊断之一。组织病理学检查是诊断颅内神经母细胞瘤的关键。
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引用次数: 0
Acute disseminated encephalomyelitis with coexisting neurocysticercosis in an 11-year-old boy: An unusual occurrence. 一名 11 岁男孩的急性播散性脑脊髓炎并发神经囊虫病:一个不寻常的病例
Pub Date : 2024-04-25 DOI: 10.4103/jpgm.jpgm_926_23
D. Rajiv, S Jain, S. Karande
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引用次数: 0
Large language models and the future of academic writing. 大语言模型与学术写作的未来。
Pub Date : 2024-04-25 DOI: 10.4103/jpgm.jpgm_823_23
P. Nayak, N. Gogtay
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引用次数: 0
Bicarotid trunk and severe kinking of right common carotid artery presenting with large intracranial hemorrhage. 双颈动脉干和右侧颈总动脉严重扭结,伴有大面积颅内出血。
Pub Date : 2024-04-23 DOI: 10.4103/jpgm.jpgm_891_23
S. J. Chen, S S Chang, N. H. Meng
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引用次数: 0
Periosteal reaction in jugular foramen secondary to ipsilateral internal jugular vein thrombosis. 同侧颈内静脉血栓继发颈静脉孔骨膜反应。
Pub Date : 2024-04-18 DOI: 10.4103/jpgm.jpgm_763_23
P. V. Patil
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引用次数: 0
Use of ROC curve analysis for prediction gives fallacious results: Use predictivity-based indices. 使用 ROC 曲线分析进行预测会得出错误的结果:使用基于预测性的指数。
Pub Date : 2024-04-18 DOI: 10.4103/jpgm.jpgm_753_23
A. Indrayan, R. K. Malhotra, M. Pawar
ABSTRACTThe area under the ROC curve is frequently used for assessing the predictive efficacy of a model, and the Youden index is commonly used to provide the optimal cut-off. Both are misleading tools for predictions. A ROC curve is drawn for the sensitivity of a quantitative test against its (1 - specificity) at different values of the test. Both sensitivity and specificity are retrospective in nature as these are indicators of correct classification of already known conditions. They are not indicators of future events and are not valid for predictions. Predictivity intimately depends on the prevalence which may be ignored by sensitivity and specificity. We explain this fallacy in detail and illustrate with several examples that the actual predictivity could differ greatly from the ROC curve-based predictivity reported by many authors. The predictive efficacy of a test or a model is best assessed by the percentage correctly predicted in a prospective framework. We propose predictivity-based ROC curves as tools for providing predictivities at varying prevalence in different populations. For optimal cut-off for prediction, in place of the Youden index, we propose a P-index where the sum of positive and negative predictivities is maximum after subtracting 1. To conclude, for correctly assessing adequacy of a prediction models, predictivity-based ROC curves should be used instead of the usual sensitivity-specificity-based ROC curves and the P-index should replace the Youden index.
摘要 ROC 曲线下面积常用于评估模型的预测效果,而尤登指数则常用于提供最佳临界值。两者都是误导预测的工具。ROC 曲线是根据定量检测在不同检测值下的灵敏度和(1 - 特异性)绘制的。灵敏度和特异性都是回顾性的,因为它们是对已知情况进行正确分类的指标。它们不是未来事件的指标,不能用于预测。预测性与患病率密切相关,而患病率可能会被灵敏度和特异性所忽略。我们将详细解释这一谬误,并用几个例子说明,实际的预测性可能与许多作者报告的基于 ROC 曲线的预测性大相径庭。在前瞻性框架中,测试或模型的预测功效最好通过正确预测的百分比来评估。我们建议将基于预测率的 ROC 曲线作为工具,在不同人群中提供不同流行率的预测率。对于预测的最佳临界值,我们提出了一个 P 指数来代替尤登指数,即阳性和阴性预测值之和减去 1 后的最大值。总之,为了正确评估预测模型的适当性,应使用基于预测率的 ROC 曲线,而不是通常的基于灵敏度-特异性的 ROC 曲线,并用 P 指数取代尤登指数。
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Journal of postgraduate medicine
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