Clinical Focus


  • Pediatric Surgery
  • Thyroid Surgery
  • Laparoscopic and Thoracoscopic Surgery

Academic Appointments


Administrative Appointments


  • Surgical Director of Procedural and Diagnostic Services, Lucille Packard Children's Hospital (2016 - Present)
  • Associate Vice President of Medical Affairs, Lucile Packard Children's Hospital (2011 - Present)
  • Division Chief, Pediatric Surgery, Stanford University School of Medicine (2012 - 2016)

Honors & Awards


  • President, Association of Pediatric Surgery Program Directors (2003-2006)
  • President-Elect Medical Staff, Children's National Medical Center, Washington, D.C. (2004)
  • Vice-President Medical Staff, Lucile Packard Children's Hospital (2006 -7)
  • Best Doctors in America, Best Doctors Inc. (2005, 2006, 2007, 2011)
  • Guide to America's Top Surgeons, Consumer's Research Council of America (2007)
  • President- Medical Staff, Lucile Packard Children's Hospital (2007-2010)

Professional Education


  • Board Certification: American Board of Surgery, General Surgery (1990)
  • Fellowship: Stanford University Pediatric Surgery (1981) CA
  • Residency: Alameda County Medical Center UCSF East Bay Surgical Residency (1979) CA
  • Internship: Alameda County Medical Center UCSF East Bay Surgical Residency (1975) CA
  • Board Certification: American Board of Surgery, Surgical Critical Care (1991)
  • Board Certification: American Board of Surgery, Pediatric Surgery (1984)
  • Residency: University of Oklahoma (1983) OK
  • Medical Education: University of Wisconsin Medical School (1974) WI
  • BA, University of Wisconsin, Psychology (1970)
  • MD, University of Wisconsin, Medicine (1974)
  • MBA, The George Washington University, Information Technology (2000)

Current Research and Scholarly Interests


Minimal Access and Robotic Surgery
Neonatal Surgery
Childhood Oncology

2023-24 Courses


All Publications


  • Let Kids Play: Using Virtual Reality as a Substitute for General Anesthesia for Minor Procedures in Pediatric Population. Journal of pediatric surgery Salimi-Jazi, F., Sabapaty, A., Santos Dalusag, K., Abrajano, C., Nguyen, J., Robinson, B., Caruso, T. J., Rodriguez, S., Hartman, G., Chao, S. D. 2024

    Abstract

    In the pediatric population, virtual reality (VR) has been used as an adjunct to augment analgesia and reduce the need for opioids. In this study, we review our experience using VR in lieu of anesthesia or sedation to enable minor procedures in children.A retrospective chart review study was performed on patients who presented to our institution from 2019 to 2022 for hormone implant placement, exchange, or removal with VR distraction. Demographic and procedure information was recorded. The primary outcome was successful procedure completion without requiring pharmacologic sedation or analgesia.A total of 111 patients underwent the following minor procedures with VR and without anesthesia or sedation. Fourteen patients had multiple encounters resulting in a total of 126 encounters. The median age was 11 [6] years. 43 patients were female, 23 were female to male, 6 were non-binary, 7 were male, and 32 were male to female. 58 % had private insurance. Most common diagnosis was precocious puberty (54 %) followed by gender dysphoria (46 %). Most common procedure was implant placement (72 %). 69 % of procedures were performed in the clinic and 31 % in the OR. All procedures were completed without requiring the administration of additional sedation or anesthesia. None of the patients required intravenous catheter placement for the procedure. No intra-procedural complications were recorded.VR is a feasible option that can spare children from sedation or general anesthesia for minor procedures. VR may enable minor procedures in children to be successfully performed in clinic setting.

    View details for DOI 10.1016/j.jpedsurg.2024.01.002

    View details for PubMedID 38307749

  • Use of Neoadjuvant Vandetanib in Aggressive Pediatric Medullary Thyroid Carcinoma. JCO precision oncology Kothari, R., Kreimer, S., Nadel, H., Seeley, H., Hartman, G., Meister, K. D. 2024; 8: e2300257

    Abstract

    Novel use of vandetanib in a child with aggressive MTC with prolonged response to treatment.

    View details for DOI 10.1200/PO.23.00257

    View details for PubMedID 38207224

  • Parathyroid Autofluorescence in Pediatric Thyroid Surgery: Experience With False Positive and False Negative Results. Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery Su-Velez, B. M., Hartman, G. E., Seeley, H., Orloff, L. A., Noel, J. E., Meister, K. D. 2023

    Abstract

    Devices for near-infrared light stimulation of autofluorescence (NIRAF) allow for intraoperative identification of parathyroid glands with high sensitivity in adults. However, their performance in the pediatric population is unknown. In this case series with chart review at a tertiary academic children's hospital, we investigated pediatric patients undergoing thyroid surgery and concurrent use of a probe-based NIRAF device. Thirteen patients (ages 6-18 years) underwent thyroid and/or neck dissection procedures, and 2 patients had revision procedures for a total of 15 cases with the NIRAF device. Eight cases had NIRAF values that matched surgeon opinion of parathyroid tissue or histology when available. Six cases had false positive NIRAF readings (40.0%) and 1 case had false negative readings (6.7%). Compared with surgeon opinion or histology, the NIRAF device confirmed 26 of 34 parathyroid gland candidates (76.5%). These devices need further investigation in pediatric patients, whose tissues may have different autofluorescence characteristics.

    View details for DOI 10.1002/ohn.272

    View details for PubMedID 36939554

  • Parathyroid Autofluorescence in Pediatric Thyroid Surgery: Experience With False Positive and False Negative Results OTOLARYNGOLOGY-HEAD AND NECK SURGERY Su-Velez, B. M., Hartman, G. E., Seeley, H., Orloff, L. A., Noel, J. E., Meister, K. D. 2023

    View details for DOI 10.1002/ohn.272

    View details for Web of Science ID 000921354900001

  • Sociodemographic Disparities in the Diagnostic Management of Pediatric Thyroid Nodules. JAMA otolaryngology-- head & neck surgery Moon, P. K., Qian, Z. J., Noel, J. E., Orloff, L. A., Seeley, H., Hartman, G. E., Josephs, S., Meister, K. D. 2022

    Abstract

    Importance: Thyroid cancer is the most common pediatric endocrine malignant neoplasm. Disparities in the workup of thyroid nodules may be significantly associated with thyroid cancer outcomes.Objective: To determine the association of sociodemographic factors with the odds of receiving a biopsy, timeliness of the procedure, and risk of nodule malignancy.Design, Setting, and Participants: This was a retrospective cross-sectional study using insurance claims data from the Optum Clinformatics Data Mart database. The study cohort comprised pediatric patients diagnosed with single thyroid nodules between 2003 and 2020. Data analysis was performed from January 1, 2003, to June 30, 2020.Main Outcomes and Measures: Multivariable logistic regression models were used to identify demographic variables associated with biopsy and nodule malignant neoplasm. A multivariable linear regression model was used to assess the time between thyroid nodule diagnosis and biopsy.Results: Of 11 643 children (median [IQR] age at diagnosis or procedure, 15 [12-17] years; 8549 [73.2%] were female and 3126 [26.8%] were male) diagnosed with single thyroid nodules, 2117 (18.2%) received a biopsy. Among the patients who received a biopsy, 304 (14.4%) were found to have a malignant nodule. Greater parental education was associated with a shorter diagnosis-to-biopsy interval (mean difference, -7.24 days; 95% CI, -13.75 to -0.73). Older age at nodule diagnosis (odds ratio [OR], 1.11; 95% CI, 1.09-1.13) and female gender (OR, 1.25; 95% CI, 1.11-1.40) were associated with increased odds of receiving a biopsy, while Black/African American (OR, 0.80; 95% CI, 0.65-0.99) and Hispanic (OR, 0.84; 95% CI, 0.72-0.99) patients had lower odds of receiving a biopsy compared with White patients. Finally, female gender (OR, 1.08; 95% CI, 0.80-1.47) was not associated with lower odds of nodule malignant neoplasm.Conclusions and Relevance: Findings of this cross-sectional study highlight disparities in the diagnostic management of pediatric thyroid nodules. These results call for future work to ensure equitable access to thyroid care for all children.

    View details for DOI 10.1001/jamaoto.2022.3167

    View details for PubMedID 36227590

  • Optimizing Professional Practice Evaluation to Enable a Nonpunitive Learning Health System Approach to Peer Review. Pediatric quality & safety Sandborg, C. I., Hartman, G. E., Su, F., Williams, G., Teufe, B., Wixson, N., Larson, D. B., Donnelly, L. F. 2021; 6 (1): e375

    Abstract

    Healthcare organizations are focused on 2 different and sometimes conflicting tasks; (1) accelerate the improvement of clinical care delivery and (2) collect provider-specific data to determine the competency of providers. We describe creating a process to meet both of these aims while maintaining a culture that fosters improvement and teamwork.Methods: We created a new process to sequester activities related to learning and improvement from those focused on individual provider performance. We describe this process, including data on the number and type of cases reviewed and survey results of the participant's perception of the new process.Results: In the new model, professional practice evaluation committees evaluate events purely to identify system issues and human factors related to medical decision-making, resulting in actional improvements. There are separate and sequestered processes that evaluate concerns around an individual provider's clinical competence or behavior. During the first 5 years of this process, 207 of 217 activities (99.5%) related to system issues rather than issues concerning individual provider competence or behavior. Participants perceived the new process as focused on identifying system errors (4.3/5), nonpunitive (4.2/5), an improvement (4.0/5), and helped with engagement in our system and contributed to wellness (4.0/5).Conclusion: We believe this sequestered approach has enabled us to achieve both the oversight mandates to ensure provider competence while enabling a learning health systems approach to build the cultural aspects of trust and teamwork that are essential to driving continuous improvement in our system of care.

    View details for DOI 10.1097/pq9.0000000000000375

    View details for PubMedID 33409427

  • Transfusion Management of Conjoined Twins Undergoing Surgical Separation: A Single Center Experience with Three Sets of Thoraco-Omphalopagus Twins over Ten Years Tsang, H., Kuan, C., Boltz, M., Hartman, G., Joshi, R. P., Panigrahi, A., Andrews, J. WILEY. 2018: 122A–123A
  • Salvage of a failed open gastrocutaneous fistula repair with an endoscopic over-the-scope clip JOURNAL OF PEDIATRIC SURGERY CASE REPORTS Jaramillo, J., Hyun, J., Abrajano, C., Koppolu, R., Chao, S., Hartman, G., Wall, J. 2016; 8: 40–41
  • Severe lactic acidosis and multiorgan failure due to thiamine deficiency during total parenteral nutrition. BMJ case reports Ramsi, M., Mowbray, C., Hartman, G., Pageler, N. 2014; 2014

    Abstract

    A 16-year-old perioperative paediatric patient presented with refractory lactic acidosis and multiorgan failure due to thiamine-deficient total parenteral nutrition during a recent national multivitamin shortage. Urgent empiric administration of intravenous thiamine resulted in prompt recovery from this life-threatening condition. Despite readily available treatment, a high index of suspicion is required to prevent cardiovascular collapse and mortality.

    View details for DOI 10.1136/bcr-2014-205264

    View details for PubMedID 24895398

  • Conjoined Twins FUNDAMENTALS OF PEDIATRIC SURGERY Hartman, G. E., Mattei, P. 2011: 893–99
  • Outcomes of sutureless gastroschisis closure JOURNAL OF PEDIATRIC SURGERY Riboh, J., Abrajano, C. T., Garber, K., Hartman, G., Butter, M. A., Albanese, C. T., Sylvester, K. G., Dutta, S. 2009; 44 (10): 1947-1951

    Abstract

    A new technique of gastroschisis closure in which the defect is covered with sterile dressings and allowed to granulate without suture repair was first described in 2004. Little is known about the outcomes of this technique. This study evaluated short-term outcomes from the largest series of sutureless gastroschisis closures.A retrospective case control study of 26 patients undergoing sutureless closure between 2006 and 2008 was compared to a historical control group of 20 patients with suture closure of the abdominal fascia between 2004 and 2006. Four major outcomes were assessed: (1) time spent on ventilator, (2) time to initiating enteral feeds, (3) time to discharge from the neonatal intensive care unit, and (4) rate of complications.In multivariate analysis, sutureless closure of gastroschisis defects independently reduced the time to extubation as compared to traditional closure (5.0 vs 12.1 days, P = .025). There was no difference in time to full enteral feeds (16.8 vs 21.4 days, P = .15) or time to discharge (34.8 vs 49.7 days, P = .22) with sutureless closure. The need for silo reduction independently increased the time to extubation (odds ratio, 4.2; P = .002) and time to enteral feeds (odds ratio, 5.2; P < .001). Small umbilical hernias were seen in all patients.Sutureless closure of uncomplicated gastroschisis is a safe technique that reduces length of intubation and does not significantly alter the time required to reach full enteral feeds or hospital discharge.

    View details for DOI 10.1016/j.jpedsurg.2009.03.027

    View details for Web of Science ID 000271331700014

    View details for PubMedID 19853753

  • Hemopericardium from coronary artery laceration complicating extracorporeal membrane oxygenation. Journal of perinatology Rhine, W. D., Hartman, G. E., Shochat, S. J., Benitz, W. E., Van Meurs, K. P. 1997; 17 (3): 189-192

    Abstract

    We report the clinical course and successful surgical treatment of hemopericardium resulting from coronary artery (CA) laceration in two patients with congenital diaphragmatic hernia (CDH) undergoing extracorporeal membrane oxygenation (ECMO) bypass.Retrospective case review.Two neonates with CDH had needle aspiration for either pneumothorax or pericardial effusion before initiation of ECMO. While on bypass, progressive hemopericardium led to narrow pulse pressure and decreased venous return that limited bypass flow. Widened cardiac silhouette on chest radiographs suggested hemopericardium; echocardiography was confirmatory in one case. The underlying diagnosis of CA laceration was made during pericardiotomy and treated with surgical patching.Pre-ECMO history of cardiothoracic needle aspiration is important because complications such as hemothorax or hemopericardium may arise once ECMO bypass is initiated. Inadvertent CA laceration may lead to acute hemopericardium, compromising venous drainage. However, CA laceration can be successfully repaired while the patient is on bypass.

    View details for PubMedID 9210072

  • LOBAR LUNG TRANSPLANTATION AS A TREATMENT FOR CONGENITAL DIAPHRAGMATIC-HERNIA JOURNAL OF PEDIATRIC SURGERY VanMeurs, K. P., Rhine, W. D., Benitz, W. E., Shochat, S. J., Hartman, G. E., Sheehan, A. M., Starnes, V. A. 1994; 29 (12): 1557-1560

    Abstract

    The mortality rate for infants severely affected with congenital diaphragmatic hernia (CDH) remains high despite significant advances in surgical and neonatal intensive care including delayed repair and extracorporeal membrane oxygenation (ECMO). Because of the increasingly successful experience with single-lung transplantation in adults; this approach has been suggested as a potential treatment for CDH infants with unsalvageable pulmonary hypoplasia. The authors report on a newborn female infant who was the product of a pregnancy complicated by polyhydramnios. At birth, she was found to have a right-sided CDH and initially was treated with preoperative ECMO, followed by delayed surgical repair. Despite the CDH repair and apparent resolution of pulmonary hypertension, the infant's condition deteriorated gradually after decannulation, and escalating ventilator settings were required as well as neuromuscular paralysis and pressor support because of progressive hypoxemia and hypercarbia. A lung transplant was performed 8 days after decannulation, using the right lung obtained from a 6-week-old donor. The right middle lobe was excised because of the size discrepancy between the donor and recipient. After transplantation, the patient was found to have duodenal stenosis and gastroesophageal reflux, which required duodenoduodenostomy and fundoplication. The patient was discharged from the hospital 90 days posttransplantation, at 3 1/2 months of age. Currently she is 24 months old and doing well except for poor growth. This case shows the feasibility of single-lung transplantation for infants with CDH, and the potential use of ECMO as a temporary bridge to transplantation. Lobar lung transplantation allowed for less stringent size constraints for the donor lung.

    View details for Web of Science ID A1994PW61200018

    View details for PubMedID 7877027

  • LANGERHANS CELL HISTIOCYTOSIS PRESENTING WITH THE SUPERIOR VENA-CAVA SYNDROME - A CASE-REPORT MEDICAL AND PEDIATRIC ONCOLOGY Mogul, M., HARTMAN, G., Donaldson, S., Gelb, A., Link, M., Amylon, M., Glader, B. 1993; 21 (6): 456-459

    Abstract

    A case of Langerhans' cell histiocytosis confined to the mediastinum and presenting with de novo superior cava syndrome is reported. The causes of superior vena cava syndrome in childhood are discussed as is the importance of obtaining pathologic diagnosis prior to initiating therapy.

    View details for PubMedID 8515729

  • ESOPHAGEAL ATRESIA WITH TRIPLE CONGENITAL TRACHEOESOPHAGEAL FISTULAS JOURNAL OF PEDIATRIC SURGERY Yun, K. L., Hartman, G. E., Shochat, S. J. 1992; 27 (12): 1527-1528

    Abstract

    The surgical management of an infant with esophageal atresia and three (2 proximal and 1 distal) congenital tracheoesophageal fistulae is described. The pitfalls in the diagnosis of proximal fistulae are discussed.

    View details for Web of Science ID A1992KC85600016

    View details for PubMedID 1469561

  • SONOGRAPHIC DETECTION OF CONGENITAL PANCREATIC CYSTS IN THE NEWBORN - REPORT OF A CASE AND REVIEW OF THE LITERATURE PEDIATRIC RADIOLOGY Baker, L. L., Hartman, G. E., Northway, W. H. 1990; 20 (6): 488-490

    Abstract

    A case of congenital pancreatic cysts detected antenatally by ultrasound is presented. This is the second case detected antenatally. Congenital pancreatic cysts should be included in the differential diagnosis of upper abdominal cystic masses in the fetus and newborn infant.

    View details for Web of Science ID A1990DP57300021

    View details for PubMedID 2202976

  • ABDOMINAL-MASS LESIONS IN THE NEWBORN - DIAGNOSIS AND TREATMENT CLINICS IN PERINATOLOGY Hartman, G. E., Shochat, S. J. 1989; 16 (1): 123-135

    Abstract

    Most neonatal abdominal masses will be due to benign retroperitoneal lesions such as hydronephrosis and multicystic dysplastic kidney. Although history and physical examination, plain radiographs and ultrasonography will confirm most diagnoses, severe unilateral hydronephrosis, hemorrhagic neuroblastoma, and intraperitoneal cysts may provide diagnostic difficulties. Masses identified by prenatal ultrasound need careful evaluation as they may represent normal structures, nonsignificant variants, or physiologically significant anomalies. Many lesions will require operative intervention, which can be safely performed in small infants by trained personnel at facilities with appropriate support services. Genuine controversy exists in the management of some of these lesions including MDK, renal vein thrombosis, and acalculous cholecystitis.

    View details for Web of Science ID A1989T887700011

    View details for PubMedID 2656056

  • EXTRA-ADRENAL PHEOCHROMOCYTOMA - AN UNUSUAL LOCATION JOURNAL OF PEDIATRIC SURGERY Hartman, G. E., Hintz, R., Northway, W., Mihm, F. G. 1988; 23 (11): 1045-1047

    Abstract

    A 14-year-old boy with a retrohepatic para-aortic pheochromocytoma demonstrates the potential difficulties of localization in an unusual extra-adrenal site of pheochromocytoma. Ultrasonography, computed tomography, metaiodobenzylguanidine scanning, and angiography with venous sampling failed to define the true anatomic location of this tumor. Collateral venous drainage produced confusing venous sampling data and represents a potential pitfall in the interpretation of these studies.

    View details for Web of Science ID A1988Q843100025

    View details for PubMedID 3244086

  • POST-NECROTIZING ENTEROCOLITIS STRICTURES PRESENTING WITH SEPSIS OR PERFORATION - RISK OF CLINICAL OBSERVATION JOURNAL OF PEDIATRIC SURGERY Hartman, G. E., Drugas, G. T., Shochat, S. J. 1988; 23 (6): 562-566

    Abstract

    Intestinal stenosis or stricture occurs in approximately one third of medically treated infants surviving the acute phase of necrotizing enterocolitis (NEC). Identification of these lesions by the use of routine contrast enemas has been advocated as a means of decreasing potential morbidity from delayed diagnosis. However, the significant incidence of spontaneous resolution and reluctance to submit asymptomatic infants to contrast enema have led recent researchers to reserve these studies for patients developing symptoms of obstruction during a period of close observation. From July 1984 to July 1986, symptomatic strictures developed in five infants (15%) responding to medical management at our institution. Contrast enemas were not routinely performed and four (80%) of these patients presented with life-threatening sepsis or perforation associated with intestinal obstruction. Two infants developed complete colonic obstruction 4 and 6 weeks after discharge from the Intensive Care Nursery, having initially tolerated oral feedings. Both infants were critically ill due to perforation or sepsis and underwent emergency colostomy at community hospitals. Two other infants developed abdominal distension with sepsis and cardiopulmonary decompensation while remaining hospitalized for prematurity and pulmonary insufficiency. These patients became symptomatic 5 and 7 weeks after cautious refeeding while closely monitored in the Intensive Care Nursery. The occurrence of such life-threatening complications suggests that clinical observation alone is not adequate in the management of many of these infants. Contrast enemas should be performed to identify those patients at risk of such potential morbidity or mortality, especially those infants not residing near pediatric surgical facilities.

    View details for Web of Science ID A1988N800300012

    View details for PubMedID 3047359

  • MATURATIONAL PATTERNS OF CARBOHYDRASES IN THE ILEAL REMNANT OF RATS AFTER JEJUNECTOMY AT INFANCY AMERICAN JOURNAL OF CLINICAL NUTRITION Hartman, G. E., Castillo, R. O., Kwong, L. K., Sunshine, P., TSUBOI, K. K. 1988; 47 (5): 868-874

    Abstract

    The enteric epithelium of suckling rat undergoes dramatic functional and cytokinetic changes (redifferentiation) with maturation. Ileal epithelial maturation was studied in infant rats subjected to 60% proximal enterectomy at age 10 d in an effort to examine redifferentiation mechanisms. Two months after resection the residual ileal remnant was increased in diameter, weight, total protein, and DNA per unit length compared with ileal segments from control littermates that had laparotomy without resection. The residual ileum demonstrated increased sucrase activity per unit length but was indistinguishable from control ileal segments in activity per unit DNA or villus distribution. Lactase activity was negligible in all segments of the residual intestine. Villus height and crypt depth were increased in the residual ileum with slight increases in cell turnover and cell-migration rates. These results show the presence of an intrinsic program for regulation of ileal epithelial maturation and its resistance to alteration by a major stimulus applied before its expression.

    View details for Web of Science ID A1988N242700015

    View details for PubMedID 3129930

  • WATERSEAL GASTROSTOMY IN THE MANAGEMENT OF PREMATURE-INFANTS WITH TRACHEOESOPHAGEAL FISTULA AND PULMONARY-INSUFFICIENCY JOURNAL OF PEDIATRIC SURGERY Fann, J. I., Hartman, G. E., Shochat, S. J. 1988; 23 (1): 29-31

    Abstract

    The perioperative management of premature infants with esophageal atresia and tracheoesophageal fistula (EA/TEF) complicated by pulmonary insufficiency continues to be a challenge. Definitive repair is usually delayed or staged and a gastrostomy is initially placed to prevent reflux aspiration. In patients with decreased pulmonary compliance, gastrostomy placement results in decreased intragastric pressure leading to a loss of ventilatory pressure via the tracheoesophageal fistula. A technique using the principle of underwater seal to maintain effective ventilatory pressure after gastrostomy placement is described, and two illustrative cases are presented. After acute respiratory decompensation in these patients, the gastrostomy tube was connected to underwater seal resulting in improved respiratory status. The underwater seal is allowed to intermittently "bubble," thereby permitting partial gastric decompression. This technique maintains effective ventilatory pressure after gastrostomy placement in premature infants with EA/TEF and pulmonary insufficiency until definitive therapy can be achieved.

    View details for Web of Science ID A1988L764300006

    View details for PubMedID 3351723

  • MANAGEMENT OF SEPTIC COMPLICATIONS ASSOCIATED WITH SILASTIC CATHETERS IN CHILDHOOD MALIGNANCY PEDIATRIC INFECTIOUS DISEASE JOURNAL Hartman, G. E., Shochat, S. J. 1987; 6 (11): 1042-1047

    Abstract

    From January, 1979, to December, 1984, 63 Hickman or Broviac catheters were inserted into 50 high risk pediatric oncology patients (median age, 37 months). Catheters remained in place for an average of 241 days. Possible catheter sepsis and exit site infection accounted for the majority (39 of 76) of the complications of long term central venous catheterization. Neutropenia (absolute neutrophil count under 500/mm3) was associated with 70% of the catheter-related infections and 75% of the non-catheter-related infections. Catheters inserted during neutropenic episodes (23) were associated with an increased risk of subsequent septicemia (60% vs. 25%), a finding apparently related to their exposure to further neutropenia (38% vs. 16% catheter days). Of the 32 episodes of septicemia of unknown origin, 19 involved Gram-negative bacteria, 14 involved Gram-positive bacteria and 4 were caused by fungi. Five of these episodes involved multiple organisms. Staphylococcus epidermidis was the most common Gram-positive organism isolated (7 of 14). Four episodes of septicemia resolved before therapy and are considered false positive cultures. Of the other 28 episodes of septicemia, 25 (89%) were successfully treated without catheter removal including 3 episodes of fungemia and 4 of multiple organism sepsis. These data demonstrate the efficacy of antimicrobial treatment without catheter removal in the pediatric oncology population with catheter-associated infections including those associated with neutropenia, multiple organisms and fungemia.

    View details for Web of Science ID A1987K989800009

    View details for PubMedID 3696842

  • THE DILEMMA OF THE MULTICYSTIC DYSPLASTIC KIDNEY AMERICAN JOURNAL OF DISEASES OF CHILDREN Hartman, G. E., SMOLIK, L. M., Shochat, S. J. 1986; 140 (9): 925-928

    Abstract

    Multicystic dysplastic kidney is the most frequent cause of an abdominal mass in the neonate, but controversy continues as to the optimal management of these lesions, since little is known about their natural history. Experience with two complicated cases and a review of reports of retained multicystic dysplastic kidneys suggest that such lesions pose a significant risk to their hosts. Malignancy, reversible hypertension, pain, and mass effect have been associated with retained lesions. Infection is another potential hazard that is frequently cited but poorly documented in the literature. In light of the currently low morbidity and mortality associated with operation and anesthesia in the neonatal period, resection appears to be the treatment of choice for the neonate with a multicystic dysplastic kidney.

    View details for Web of Science ID A1986D779400039

    View details for PubMedID 3017096

  • PRIMARY PULMONARY NEOPLASMS OF CHILDHOOD - A REVIEW ANNALS OF THORACIC SURGERY Hartman, G. E., Shochat, S. J. 1983; 36 (1): 108-119

    Abstract

    Primary tumors of the lung rarely occur in children. However, 230 well-documented cases, including the 2 presented in this review, have been identified in the English-language literature. One hundred fifty-one tumors in these reports were classified as malignant lesions and 79 as benign neoplasms. Bronchial "adenomas" constituted the largest group; most of these lesions were of the carcinoid variety, and 8% were definitely malignant. Forty-seven cases of bronchogenic carcinoma were reported in children under 16 years of age, although there were few squamous cell tumors (12%). Fifty-six percent of the benign tumors were classified as inflammatory pseudotumor. Most of the children in this collective series were seen with symptoms related to bronchial irritation or obstruction, such as cough, hemoptysis, atelectasis, or pneumonitis. Respiratory distress was an unusual symptom that was often associated with large tumors seen in the neonatal period. Approximately 20% of the children were totally symptomatic. The limited survival data that are available indicate that leiomyosarcoma and mucoepidermoid carcinoma have a more favorable prognosis in children than in adults. Survival with bronchial carcinoid tumors (90%), bronchogenic carcinoma (30%), and pulmonary blastoma (45%) appears to parallel that for adults. The experience with pulmonary rhabdomyosarcoma, as described in this review, emphasizes the importance of early diagnosis and the use of combined modes of therapy in the approach to these malignancies. Despite the rarity of primary pulmonary neoplasms in children, this diagnosis should be considered in young patients with solitary pulmonary masses or persistent, atypical pulmonary symptoms. It is hoped that early diagnosis will result in an improved prognosis and prevent life-threatening complications.

    View details for Web of Science ID A1983QX79600021

    View details for PubMedID 6344822

  • MOIRE PHOTOTOPOGRAPHY IN THE EVALUATION OF ANTERIOR CHEST WALL DEFORMITIES JOURNAL OF PEDIATRIC SURGERY Shochat, S. J., CSONGRADI, J. J., Hartman, G. E., Rinsky, L. A. 1981; 16 (3): 353-357

    Abstract

    One of the major remaining problems in the management of children with anterior chest wall deformities is the lack of a widely accepted objective method of evaluating the severity of the deformity. This deficiency has made it difficult to evaluate indications for operation or the results of operative repair. Moiré phototopography is a new method of accurately measuring human body contours utilizing recent developments in applied optics and has been used successfully in scoliosis screening programs. This technique has been applied to the evaluation of anterior chest wall deformities and the initial results of this study are presented. Moiré phototopography has proven to be a sensitive, reproducible, and easy to perform method of quantitating pectus deformities. While further evaluation is required, this early experience suggests this technique may provide a means of accurately and objectively measuring chest wall deformities so that their physiologic significance can be precisely investigated and the results of therapy critically reviewed.

    View details for Web of Science ID A1981LS41400026

    View details for PubMedID 7252740